Alternators — Saudi Arabia

Alternators Supplier Saudi Arabia — Industrial Generator Heads & Diesel Gensets

Gulf Union Ozone supplies industrial brushless synchronous alternators, generator heads, and complete diesel generator sets to facilities across Saudi Arabia. Our Jeddah warehouse stocks units from Stamford, Leroy-Somer, Mecc Alte, and Marathon Electric — rated from 7.5 kVA to 3,000+ kVA — conforming to IEC 60034-1, ISO 8528-3, NEMA MG1-22, and BS 5000. ISO 9001:2015 certified (CR 4030570569). Full MTCs, Certificates of Conformance, and dimensional reports are available for every order.

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Industrial alternators and diesel generator sets — Stamford, Leroy-Somer, Mecc Alte — Gulf Union Ozone Saudi Arabia
StandardsIEC · ISO · NEMA · BS · IEEE
Products50+ Alternator SKUs
DispatchSame-day from Jeddah
QualityISO 9001:2015
DocumentationMTCs & CoCs Included
Product Types

Product Types in Stock

Gulf Union Ozone maintains safety stock across the principal alternator types demanded by Saudi industrial, oil & gas, commercial, and infrastructure projects. Every product line is backed by full technical documentation.

Type 01

Brushless Synchronous Alternators

Self-exciting brushless synchronous alternators conforming to IEC 60034-1 and BS 5000 Part 3, featuring Class H insulation (180°C thermal limit), IP23 or IP44 enclosure, and solid-state automatic voltage regulator (AVR). Output voltage: 380V, 400V, 415V, or 440V three-phase at 50 Hz. Voltage regulation ±1.0% steady state (no load to full load), ±3% transient. Power range 7.5 kVA to 3,000 kVA single-bearing or double-bearing configurations. Silicon-steel rotor laminations, copper field winding, anti-condensation heater terminals as standard. Brands stocked: Stamford (Cummins Power), Leroy-Somer, Mecc Alte, Marathon Electric.

Type 02

Complete Diesel Generator Sets

Turnkey diesel generator sets (gensets) to ISO 8528-1 combining Cummins, Perkins, and Volvo Penta engines with Stamford or Leroy-Somer alternator heads, mounted on a common steel base frame with anti-vibration mounts, day-tank, and automatic mains-failure (AMF) control panel. Ratings from 22 kVA (Perkins) to 3,000 kVA (Cummins QSK series). Emission levels to EPA Tier 4 Final or EU Stage V on request. Acoustic enclosures (65–75 dB(A) at 7 m) available. Factory load bank test reports, commissioning certificates, and full operation and maintenance manuals supplied.

Type 03

Marine & Offshore Alternators

Marine-grade brushless synchronous alternators designed for shipboard power generation, conforming to IEC 60034-1, Lloyd's Register type approval, DNV GL, and ABYC E-11. Epoxy-sealed windings for humidity and salt-air resistance; stainless steel shaft ends and sealed double-row ball bearings. Enclosure to IP44 minimum; tropical insulation treatment for continuous 50°C ambient operation. Ratings from 15 kVA to 1,000 kVA at 50 or 60 Hz. Leroy-Somer LSAM series and Mecc Alte ECO series for marine applications. Full class certificate documentation available.

Type 04

High-Voltage Industrial Alternators

High-voltage synchronous generators rated 3.3 kV, 6.6 kV, 11 kV, and 33 kV to IEC 60034-1 and IEC 60034-5, for utility-scale power generation, combined heat and power (CHP), gas turbine, and large prime-mover applications. Class F insulation minimum; forced-air or water-cooled (TEWAC/CACW) options. Excitation systems to IEEE 421.1 — static excitation, brushless rotating exciter, or permanent magnet pilot exciter (PMG). Protections to IEC 60255. ABB AMG, Leroy-Somer LSA 58.2 / LS 62 series available. Full factory type-test certificates (IEC 60034-1 Clause 9) supplied.

Type 05

Permanent Magnet Generators (PMG)

Permanent magnet generators (PMG) using rare-earth NdFeB or ferrite magnets for wind turbine excitation systems, small hydro, and auxiliary excitation on large synchronous generators. Axial-flux and radial-flux topologies. Output: 100–5,000 W at low shaft speeds (150–900 rpm), eliminating the need for gearboxes in direct-drive wind systems. High efficiency (>90%) across partial-load range. Also supplied as sub-exciter PMG bolted to the non-drive end of large Stamford HCI/HC series brushless alternators, providing independent excitation bus for enhanced performance under non-linear loads and fault conditions.

Type 06

AVRs, Spare Parts & Accessories

Automatic voltage regulators (AVR) for brushless alternator field control: Stamford SX460, SX440, AS440, MX321, MX341, and MX450 models; Leroy-Somer D350, D700 series; and Mecc Alte DSR, DSE controllers — stocked for immediate supply. Also available: rotor and stator rewinding services, rectifier diode sets (avalanche-type, 400V to 600V PIV), varistor surge suppressor kits, anti-condensation heaters (110V/220V, 50W–200W), shaft earthing rings, IP upgrade canopy kits, and bearing replacement kits. Connecting hardware including SAE bell-housing adapters, flexible disc couplings (DIN 740-2), and close-coupled adaptor plates in SAE sizes 1 through 14 are also stocked.

In Summary

Industrial alternators — synchronous AC generators — are the standard power source for standby, mobile, and distributed generation across Saudi Aramco facilities, construction sites, and remote industrial plants. Key Saudi Arabia specifications: output voltage 380V or 415V three-phase at 50 Hz, power factor 0.8 lagging, IP21 drip-proof for indoor use or IP44/IP54 for outdoor dusty environments, insulation Class H rated to 180°C maximum winding temperature. Excitation types stocked include brushless self-excited with rotating rectifier for minimum maintenance; permanent magnet pilot exciter (PMG) for immunity to voltage dips from motor starting loads; and auxiliary winding excitation for low-cost applications. Standards: IEC 60034 for rotating machines, BS 5000-3 for alternators, ISO 8528 for generator set assembly; Saudi Aramco specifies SAES-P-101 for electrical equipment. Frame sizes IEC 225 through IEC 560 covering 50 to 1000 kVA from stock. Load sizing must account for motor starting kVA at minimum three times rated kW, VFD harmonics, and altitude de-rating. Gulf Union Ozone supplies bare alternators and complete diesel generator sets from Jeddah.

Product Catalog

Complete Alternators Range — 50+ Products

All products are stocked or available on short lead times from our Jeddah warehouse. Certificates of Conformance and Material Test Certificates are issued with every shipment.

Product Standard / Spec Material Size Range Application
Stamford PI144E Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, aluminium frame 7.5 kVA / 6 kW @ 0.8 pf, 1500 rpm, IP23 Small portable and standby diesel gensets
Stamford PI144F Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, aluminium frame 10 kVA / 8 kW @ 0.8 pf, 1500 rpm, IP23 Light commercial standby power
Stamford PI144G Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, aluminium frame 15 kVA / 12 kW @ 0.8 pf, 1500 rpm, IP23 Residential and small commercial backup
Stamford PI144H Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, aluminium frame 18 kVA / 14.4 kW @ 0.8 pf, 1500 rpm, IP23 Small commercial standby, pumping stations
Stamford PI144J Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, aluminium frame 20 kVA / 16 kW @ 0.8 pf, 1500 rpm, IP23 Site offices, small commercial standby
Stamford UCI224C Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, cast iron frame 45 kVA / 36 kW @ 0.8 pf, 1500 rpm, IP23 Light industrial standby, telecom shelters
Stamford UCI224D Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, cast iron frame 55 kVA / 44 kW @ 0.8 pf, 1500 rpm, IP23 Industrial standby, commercial buildings
Stamford UCI224E Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, cast iron frame 65 kVA / 52 kW @ 0.8 pf, 1500 rpm, IP23 Commercial prime power, standby systems
Stamford UCI274C Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, cast iron frame 90 kVA / 72 kW @ 0.8 pf, 1500 rpm, IP23 Industrial prime and standby power
Stamford UCI274D Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, cast iron frame 100 kVA / 80 kW @ 0.8 pf, 1500 rpm, IP23 Prime power, hospital standby systems
Stamford UCI274E Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, cast iron frame 110 kVA / 88 kW @ 0.8 pf, 1500 rpm, IP23 Commercial buildings, light industrial
Stamford UCI274F Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class H insulation, cast iron frame 125 kVA / 100 kW @ 0.8 pf, 1500 rpm, IP23 Building standby, construction sites
Stamford HCI434C Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 150 kVA / 120 kW @ 0.8 pf, 1500 rpm, IP23 Industrial standby, data centres, diesel gensets
Stamford HCI434D Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 175 kVA / 140 kW @ 0.8 pf, 1500 rpm, IP23 Large commercial standby, industrial prime power
Stamford HCI434E Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 200 kVA / 160 kW @ 0.8 pf, 1500 rpm, IP23 Standby power generation, oil & gas facilities
Stamford HCI434F Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 220 kVA / 176 kW @ 0.8 pf, 1500 rpm, IP23 Industrial standby, water treatment plants
Stamford HCI434G Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 250 kVA / 200 kW @ 0.8 pf, 1500 rpm, IP23 Continuous prime power, oil & gas, petrochemical
Stamford HCI544C Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 350 kVA / 280 kW @ 0.8 pf, 1500 rpm, IP23 Large industrial and prime power stations
Stamford HCI544D Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 400 kVA / 320 kW @ 0.8 pf, 1500 rpm, IP23 Industrial standby, data centres, hospitals
Stamford HCI544E Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 450 kVA / 360 kW @ 0.8 pf, 1500 rpm, IP23 Large commercial standby, critical infrastructure
Stamford HCI544F Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 500 kVA / 400 kW @ 0.8 pf, 1500 rpm, IP23 Large commercial standby, campus power
Stamford HCI634G Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 700 kVA / 560 kW @ 0.8 pf, 1500 rpm, IP23 High-capacity industrial, petrochemical plants
Stamford HCI634H Single-Bearing Alternator IEC 60034-1, BS 5000 Pt 3, ISO 8528-3 Copper winding, Class H insulation, fabricated steel frame 800 kVA / 640 kW @ 0.8 pf, 1500 rpm, IP23 Power generation plants, heavy industry
Stamford S4L1S Single-Phase Alternator IEC 60034-1, BS 5000 Pt 3 Copper winding, Class F insulation, aluminium frame 2.5–6 kVA, single-phase 230V, 1500 rpm Portable gensets, tools, construction power
Leroy-Somer LSA42.2 S4 Alternator IEC 60034-1, ISO 8528-3, NF C 51-111 Class H copper winding, cast iron frame, IP23 12–16 kVA @ 0.8 pf, 400V, 1500 rpm Agricultural, light commercial gensets
Leroy-Somer LSA43.2 S4 Alternator IEC 60034-1, ISO 8528-3, NF C 51-111 Class H copper winding, cast iron frame, IP23 26–38 kVA @ 0.8 pf, 400V, 1500 rpm Commercial standby, small industrial
Leroy-Somer LSA44.2 S4 Alternator IEC 60034-1, ISO 8528-3, NF C 51-111 Class H copper winding, cast iron frame, IP23 55–100 kVA @ 0.8 pf, 400V, 1500 rpm Industrial standby, commercial prime power
Leroy-Somer LSA47.2 S4 Alternator IEC 60034-1, ISO 8528-3, NF C 51-111 Class H copper winding, fabricated steel frame, IP23 150–275 kVA @ 0.8 pf, 400V, 1500 rpm Large industrial prime and standby power
Leroy-Somer LSA49.1 S4 Alternator IEC 60034-1, ISO 8528-3, NF C 51-111 Class H copper winding, fabricated steel frame, IP23 300–450 kVA @ 0.8 pf, 400V, 1500 rpm Large industrial plants, data centres
Leroy-Somer LSA50.1 S4 Alternator IEC 60034-1, ISO 8528-3, NF C 51-111 Class H copper winding, fabricated steel frame, IP23 450–600 kVA @ 0.8 pf, 400V, 1500 rpm Utility-grade standby, industrial prime
Leroy-Somer LSA53.1 S4 Alternator IEC 60034-1, ISO 8528-3, NF C 51-111 Class H copper winding, fabricated steel frame, IP23 700–1,000 kVA @ 0.8 pf, 400V, 1500 rpm High-power industrial, power plant auxiliary
Leroy-Somer LSAM 49.3 Marine Alternator IEC 60034-1, Lloyd's Register, DNV GL Class H, epoxy-sealed windings, marine-grade frame 300–500 kVA @ 0.8 pf, 440V, 60 Hz Marine vessels, offshore platforms, ships
Mecc Alte ECP28-1S/4 Alternator IEC 60034-1, BS 5000-3, CE Class H copper winding, aluminium frame, IP23 7–10 kVA @ 0.8 pf, 230/400V, 1500 rpm Light portable generators, small standby
Mecc Alte ECP28-2S/4 Alternator IEC 60034-1, BS 5000-3, CE Class H copper winding, aluminium frame, IP23 12–16 kVA @ 0.8 pf, 230/400V, 1500 rpm Residential standby, light commercial
Mecc Alte ECP32-1S/4 Alternator IEC 60034-1, BS 5000-3, CE Class H copper winding, cast iron frame, IP23 20–30 kVA @ 0.8 pf, 400V, 1500 rpm Small commercial standby, construction sites
Mecc Alte ECP32-2S/4 Alternator IEC 60034-1, BS 5000-3, CE Class H copper winding, cast iron frame, IP23 35–50 kVA @ 0.8 pf, 400V, 1500 rpm Light industrial, small commercial prime power
Mecc Alte ECP34-1S/4 Alternator IEC 60034-1, BS 5000-3, CE Class H copper winding, cast iron frame, IP23 55–80 kVA @ 0.8 pf, 400V, 1500 rpm Commercial and light industrial standby
Mecc Alte ECP34-2S/4 Alternator IEC 60034-1, BS 5000-3, CE Class H copper winding, cast iron frame, IP23 90–130 kVA @ 0.8 pf, 400V, 1500 rpm Industrial standby, hotels, hospitals
Mecc Alte ECP38-1L/4 Alternator IEC 60034-1, BS 5000-3, CE Class H copper winding, fabricated steel frame, IP23 130–180 kVA @ 0.8 pf, 400V, 1500 rpm Industrial prime power, oil field facilities
Mecc Alte ECP38-2L/4 Alternator IEC 60034-1, BS 5000-3, CE Class H copper winding, fabricated steel frame, IP23 190–250 kVA @ 0.8 pf, 400V, 1500 rpm Large commercial and industrial standby
Mecc Alte ECO43-1L/4 Alternator IEC 60034-1, BS 5000-3, CE Class H copper winding, fabricated steel frame, IP23 350–500 kVA @ 0.8 pf, 400V, 1500 rpm High-capacity industrial, CHP systems
Mecc Alte ECO43-2L/4 Alternator IEC 60034-1, BS 5000-3, CE Class H copper winding, fabricated steel frame, IP23 550–800 kVA @ 0.8 pf, 400V, 1500 rpm Power plant auxiliary, utility-grade generation
Marathon Electric 274PSL1 Alternator NEMA MG1-22, IEC 60034-1, UL 1004 Class H copper winding, cast iron frame, IP23 80–100 kW @ 0.8 pf, 480V, 1800 rpm (60 Hz) Oil & gas wellhead, North American-spec systems
Marathon Electric 274PSL2 Alternator NEMA MG1-22, IEC 60034-1, UL 1004 Class H copper winding, cast iron frame, IP23 125–175 kW @ 0.8 pf, 480V, 1800 rpm (60 Hz) Heavy industrial standby, NEMA spec projects
Marathon Electric 274PSL3 Alternator NEMA MG1-22, IEC 60034-1, UL 1004 Class H copper winding, cast iron frame, IP44 200–250 kW @ 0.8 pf, 480V, 1800 rpm (60 Hz) Prime power, industrial facilities, 60 Hz grids
Marathon Electric 444PSL1 Alternator NEMA MG1-22, IEC 60034-1, UL 1004 Class H copper winding, fabricated steel frame, IP23 300–400 kW @ 0.8 pf, 480V, 1800 rpm (60 Hz) Large standby, industrial campus power
Marathon Electric 444PSL2 Alternator NEMA MG1-22, IEC 60034-1, UL 1004 Class H copper winding, fabricated steel frame, IP23 500–600 kW @ 0.8 pf, 480V, 1800 rpm (60 Hz) High-power generation, 60 Hz industrial facilities
AVK DIG 125-4 Brushless Alternator IEC 60034-1, ISO 8528-3, CE Class H copper winding, cast iron frame, IP23 100–200 kVA @ 0.8 pf, 400V, 1500 rpm Industrial diesel gensets, standby power
AVK DIG 200-4 Brushless Alternator IEC 60034-1, ISO 8528-3, CE Class H copper winding, cast iron frame, IP23 160–315 kVA @ 0.8 pf, 400V, 1500 rpm Oil & gas facilities, offshore heavy industry
AVK DIG 315-4 Brushless Alternator IEC 60034-1, ISO 8528-3, CE Class H copper winding, fabricated steel frame, IP23 250–500 kVA @ 0.8 pf, 400V, 1500 rpm Large industrial standby, petrochemical
Cummins C22D5 Diesel Generator Set ISO 8528-1, IEC 60034-1, CE, EPA Tier 2 Steel base frame, galvanised canopy, Stamford alternator 22 kVA / 17.6 kW standby, 400V, 50 Hz Small commercial standby, telecom shelters
Cummins C55D5 Diesel Generator Set ISO 8528-1, IEC 60034-1, CE, EPA Tier 2 Steel base frame, weatherproof canopy, Stamford UCI alternator 55 kVA / 44 kW standby, 400V, 50 Hz Construction sites, commercial buildings
Cummins C150D5 Diesel Generator Set ISO 8528-1, IEC 60034-1, CE, EPA Tier 2 Steel skid, AMF control panel, Stamford HCI434 alternator 150 kVA / 120 kW standby, 400V, 50 Hz Critical facilities, hospitals, data centres
Cummins C250D5 Diesel Generator Set ISO 8528-1, IEC 60034-1, CE, EPA Tier 2 Steel skid, AMF control panel, Stamford HCI434 alternator 250 kVA / 200 kW standby, 400V, 50 Hz Data centres, industrial facilities, mosques
Cummins C500D5 Diesel Generator Set ISO 8528-1, IEC 60034-1, CE, EPA Tier 2 Steel skid, AMF panel, Stamford HCI544 alternator 500 kVA / 400 kW standby, 400V, 50 Hz Large commercial, campus, heavy industrial
Cummins C1000D5 Diesel Generator Set ISO 8528-1, IEC 60034-1, CE, EPA Tier 2 Heavy steel base, AMF panel, Stamford HCI634 alternator 1,000 kVA / 800 kW standby, 400V, 50 Hz Utility-scale standby, large petrochemical sites
Perkins 1103A-33G Diesel Generator Set ISO 8528-1, BS 5514, CE marking Steel skid, powder-coated frame, Mecc Alte ECP28 alternator 22 kVA / 17.6 kW standby, 400V, 50 Hz Light commercial standby, construction power
Perkins 1106A-70TG2 Diesel Generator Set ISO 8528-1, BS 5514, CE marking Steel skid, powder-coated canopy, Mecc Alte ECP34 alternator 110 kVA / 88 kW standby, 400V, 50 Hz Commercial prime power, telecoms, buildings
Perkins 2206A-E13TAG3 Diesel Generator Set ISO 8528-1, BS 5514, CE marking Steel skid, AMF control panel, Leroy-Somer LSA47 alternator 330 kVA / 264 kW standby, 400V, 50 Hz Industrial standby, water treatment, hospitals
Volvo TAD1643GE Diesel Generator Set ISO 8528-1, EU Stage IIIA, CE marking Heavy steel base, soundproofed canopy, Leroy-Somer LSA50 alternator 500 kVA / 400 kW prime, 400V, 50 Hz Industrial prime and standby, mining, petrochemical
MTU 12V2000 G65 Diesel Generator Set ISO 8528-1, IEC 60034-1, CE marking Steel base frame, Stamford HCI634 alternator, digital controller 600 kVA / 480 kW standby, 400V, 50 Hz Data centres, oil & gas facilities, hospitals
ABB AMG 315 Synchronous Generator IEC 60034-1, IEC 60034-5, IEEE 115 Class F copper winding, fabricated steel frame, IP44 250–500 kW, 400V or 11 kV, 1500 rpm CHP systems, power plants, industrial utility
Kato Engineering 4-Pole Brushless Generator NEMA MG1, IEC 60034-1, IEEE 115, UL Class H copper winding, cast iron frame, IP23 150–2,000 kW, 480V/4160V/13.8 kV, 1800 rpm Gas turbine driven, utility, industrial prime power
Leroy-Somer LSA 58.2 High-Voltage Generator IEC 60034-1, IEC 60034-5, NF C 51-111 Class F copper winding, TEWAC cooling, fabricated steel 1,000–3,000 kVA, 3.3 kV / 6.6 kV / 11 kV HV utility distribution, gas turbine, wind farm
PMG Axial-Flux Permanent Magnet Generator IEC 60034-1, IEC 61400-1 NdFeB rare-earth magnets, copper winding, aluminium housing 500 W – 5 kW, variable speed 150–900 rpm Small wind turbines, micro-hydro, auxiliary exciter
Stamford PMG Sub-Exciter Kit (HCI/HC Series) IEC 60034-1, BS 5000 Pt 3 Ferrite magnets, resin-potted coil, aluminium end-bracket Accessory for 150–1,000 kVA alternators Non-linear load tolerance, UPS compatibility, fault ride-through
Stamford AVR AS440 Automatic Voltage Regulator IEC 60034-1, CE marking Electronic PCB, conformal coated, DIN-rail mountable For 0.5–150 kVA alternators, 45–65 Hz, 110–220V aux Voltage regulation, field control, paralleling
Stamford AVR MX321 Automatic Voltage Regulator IEC 60034-1, CE marking Electronic PCB, conformal coated, plug-in terminal block For 150–3,000 kVA PMG alternators, 45–65 Hz PMG-excited alternators, non-linear loads, paralleling
Leroy-Somer R449 AVR (D700 Series) IEC 60034-1, CE, UL Electronic PCB, fully tropicalized, RS232 interface For LSA42–LSA53 alternators, 50/60 Hz Field voltage regulation, droop compensation, paralleling
Mecc Alte DSR AVR Automatic Voltage Regulator IEC 60034-1, CE marking Electronic PCB, tropicalized conformal coat For ECP28–ECO43 series, 50/60 Hz, ±1% regulation Voltage regulation for Mecc Alte generator heads
Rectifier Diode Set — Avalanche Type (600V PIV) IEC 60747-2, BS EN 60747 Silicon avalanche diode, press-fit stud mount 400–600V PIV, 35A–150A continuous, rotating rectifier Rotating rectifier assembly in brushless alternators
SAE Bell-Housing Adapter Plate — SAE 3 / SAE 5 SAE J620, DIN 740-2 Cast iron or fabricated steel, machined bore and pilot SAE 1 through 14, fits Cummins / Perkins / Deutz engines Engine-to-alternator coupling, genset assembly
Flexible Disc Coupling — Lovejoy / Flender Type DIN 740-2, ISO 14691 Alloy steel hubs, polyurethane disc pack, balanced to ISO 1940 G2.5 Torque ratings 50 Nm – 10,000 Nm Engine-alternator vibration isolation, genset drive
Anti-Condensation Heater Element 220V 150W IEC 60034-1, IP21 rated lead-out Nichrome heating element, ceramic insulator, silicone lead 50W / 100W / 150W / 200W, 110V or 220V supply Winding moisture prevention in stored or standby alternators
Technical Data

Alternator Specifications at a Glance

Key electrical and mechanical parameters for the industrial alternators and generator heads Gulf Union Ozone supplies throughout Saudi Arabia.

Electrical Specifications

Parameter Range / Value
Output Power (kVA) 7.5 kVA – 3,000+ kVA
LV Output Voltage 110V, 220V, 380V, 400V, 415V, 440V, 480V
HV Output Voltage 3.3 kV, 6.6 kV, 11 kV, 33 kV
Frequency 50 Hz or 60 Hz
Phase Configuration Single-phase or three-phase
Power Factor 0.8 pf lagging (standard); unity pf on request
Poles 4-pole (1500 rpm @ 50 Hz / 1800 rpm @ 60 Hz)
Voltage Regulation (steady state) ±1.0% (no load to full load, with AVR)
Voltage Regulation (transient) ±3% (per IEC 60034-1, ISO 8528-3 Grade G3)
Short-Circuit Ratio Typically 0.5–0.6 (IEC 60034-1)
THD (no load, rated voltage) <3.0% (IEC 60034-1 / ISO 8528-3 Class G3)
Excitation System Brushless self-exciting or PMG-excited with AVR

Mechanical & Environmental Specifications

Parameter Specification
Insulation Class Class F (155°C) or Class H (180°C)
IP Enclosure Rating IP21, IP23, IP44, IP54, IP55, IP65 (model dependent)
Cooling Method IC01 (DRIP) / IC06 (TEFC) / IC81W (TEWAC) per IEC 60034-6
Bearing Configuration Single-bearing (standard genset) or double-bearing
Mounting Foot-mounted IM1001 or flange-mounted IM3001 (IEC 60034-7)
Operating Ambient Temperature -15°C to +50°C standard; tropical treatment up to +60°C
Altitude Derating Rated at sea level; derate >1,000 m per IEC 60034-1
Vibration Severity Grade A: ≤2.8 mm/s (IEC 60034-14)
Balancing Standard ISO 1940 G2.5 (rotor dynamic balance)
Winding Impregnation Vacuum Pressure Impregnation (VPI) — epoxy resin
Certifications CE, ISO 9001:2015, Lloyd's Register (marine models), DNV GL
Documentation Supplied EN10204 3.1 MTC, CoC, factory test report, winding resistance data
In Summary

Alternator selection for Saudi Aramco and SABIC standby power systems must comply with Saudi Aramco Engineering Standard SAES-P-122 (emergency and standby power) and the Saudi Building Code for generator sets installed in commercial and industrial facilities. Gulf Union Ozone supplies brushless, self-excited alternators with AVR (Automatic Voltage Regulator) rated for ±1% voltage regulation at steady state and 15% transient dip on full-load step application — meeting the strict voltage stability requirement for sensitive process control equipment at Aramco facilities. Single-bearing alternators for close-coupled gen-set packages and two-bearing alternators for belt-drive or remote-coupled applications are both available. Class H insulation with Class B temperature rise for conservative rating in Saudi Arabia's ambient temperature of 45–50°C. IP23 standard enclosure; IP44 available for dusty environments in Jubail, Yanbu, and desert-site installations.

Why Choose Us

Why Industrial Buyers in Saudi Arabia Choose Gulf Union Ozone

⚡

Local Stock — Same-Day Dispatch

Safety stock of alternators, generator heads, AVRs, and accessories maintained in our Jeddah warehouse. In-stock items dispatched same day. Short lead times on made-to-order gensets across all regions of Saudi Arabia.

📄

Documentation Ready to Ship

EN10204 3.1 Material Test Certificates, Certificates of Conformance, dimensional inspection reports, factory load bank test reports, winding resistance data, and packing lists — issued with every alternator and genset order, ready for project closeout.

🏅

ISO 9001:2015 Documented Quality

Gulf Union Ozone operates a certified ISO 9001:2015 quality management system (CR 4030570569). Every alternator shipment is subject to MTC verification, nameplate spot-checks, and dimensional confirmation before dispatch — giving your QA team the traceability they require.

🗺

Nationwide KSA Delivery

We deliver alternators and diesel generator sets to Al Jubail, Yanbu, Ras Tanura, Riyadh, Dammam, Khobar, Dhahran, Tabuk, Abha, Jizan, and all 18 administrative regions of the Kingdom of Saudi Arabia. Freight on oversized gensets coordinated on request.

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Procurement, Documentation & Logistics

End-to-end industrial procurement, expediting, third-party inspection, MTC verification, customs clearance, and nationwide KSA delivery — all under one ISO 9001:2015 certified QMS.
Get a Quote

Request an Alternators Quotation

Submit your alternator or diesel genset inquiry with model reference (e.g. Stamford HCI434E, Cummins C250D5), required kVA rating, voltage, frequency (50/60 Hz), and quantity. Attach your datasheet or single-line diagram if available. Gulf Union Ozone will respond with pricing, lead time, and full documentation availability within 24 hours.

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CR 4030570569 | ISO 9001:2015 | Jeddah, Saudi Arabia

Inventory updated: August 2026

In Summary

Gulf Union Ozone alternator supply delivers to all Saudi industrial regions from the Jeddah warehouse: standard single-phase and three-phase alternators in 5 kVA to 2,500 kVA from bonded stock, 48–72 hours to Jubail and Dammam, 72–96 hours to Riyadh. Large high-voltage alternators (6.6 kV, 11 kV) for combined-heat-and-power plants at SABIC Yanbu and SWCC desalination stations are sourced with 8–14 weeks lead time from approved manufacturers. All alternators are supplied with: factory test certificate per IEC 60034-1 (no-load run, heat run, waveform distortion); efficiency certificate per IEC 60034-1; insulation resistance test record; and winding diagram. Excitation system documentation, AVR setting record, and vibration analysis report are included for Saudi Aramco rotating equipment commissioning handover. Spare AVR modules and brushless exciter diode sets are stocked for common alternator models.

In Summary

Alternator harmonics and waveform distortion are critical considerations at Saudi Aramco and SABIC facilities where sensitive process instrumentation — programmable logic controllers, variable-frequency drives, and power-quality-sensitive analysers — operates on the same electrical bus as standby generators. Gulf Union Ozone specifies alternators with total harmonic distortion (THD) below 3% at no load and below 5% at full linear load per IEC 60034-1, with 2/3 pitch winding to minimise third-harmonic content. Automatic voltage regulators (AVR) with 4% compounding for reactive power sharing in parallel generator operation are supplied for Saudi Aramco multi-set diesel generator power plants at remote facilities. Synchronising panels with synchroscope, sync-check relay, and auto-synchroniser for paralleling two or more alternator sets are available as ancillary supply. All alternators are pre-tested at the factory with load-bank testing including no-load, 25%, 50%, 75%, and 100% step-load tests documented in the factory acceptance test report.