Larson 45 KVA Power Distribution Substation - 480V to 240D/208-120V 3PH - (2) 50A (2) 30A (4) 20A Outlets

Larson ElectronicsSKU: PL3-MGS-45KVA-4X120.20-2X120.50-2X240.30

Sale price$23,258.99


PuriLite suggests you place an order directly with us for large Larson orders due to the potential customization requirements. Please call us at 1-844-787-5483 to place your order. If you prefer to place your order online, a PuriLite agent will be in touch with you to discuss any custom options.
This unit is Made In USA - Manufactured in Texas
The Larson Electronics MGS-45KVA-4X120.20-2X120.50-2X240.30 series heavy duty power distribution substation converts 480VAC three phase electrical current to three phase 120V and 240V Delta. This unit provides operators the ability to safely tap into and distribute 480VAC power from a variety of sources including generators and direct grid power.
This power distribution substation is designed for use with linear (motor) loads only.
Portable Power Distribution Purpose and Use
A 20` #6 SOOW cord brings 480VAC power to the NEMA 3R 100-amp, 480V three phase primary disconnect, which contains three 70-amp time delay fuses, and passes power to the transformer. The NEMA 3R 45 KVA transformer converts 480V to 240D/208-120V three phase and passes power to a secondary panel. The secondary side of the transformer feeds a NEMA 3R 125-amp, 240D/120V main circuit breaker panel. This secondary panel contains two 50-amp breakers protecting two 50-amp, 125V, CS6370 receptacles, two 30-amp breakers protecting two 30-amp, 125/250V, L14-30R receptacles, and four 20-amp breakers protecting four 20-amp, 125V GFCI duplex receptacles.
Protective Construction:
Unlike many portable power distribution boxes made of plastic and utilizing thin gauge, low grade metals in their construction, this unit is designed for serious use and is ruggedly constructed to withstand demanding conditions and heavy duty industrial applications. The transformer and load assembly is mounted on a 3/16" thick carbon steel mounting platform and the load center/distribution assembly is mounted to the standard 2" x 2" x 1/8" square carbon steel tubing frame, resulting in an extremely stable, durable and well protected power distribution platform. This model is equipped with forklift skid pockets, locking casters, and a top located lifting eyelet which allows easy lifting with cable or chain hooks. This can be replaced for an additional cost with stainless steel, hot dip galvanized steel, or aluminum depending on the customer’s needs. Larger units are available upon request and can be equipped with skids or trailer mounted.
Larson Electronics is a UL 1640 panel shop and certified to build portable power distribution systems. All units are built in accordance to NFPA 70 (National Electric Code) and certified to UL 1640. All equipment is NEMA 3R rated for indoor and outdoor use and provide a degree of protection against dirt, water, and ice. NEMA 4 and NEMA 4X equipment can be equipped upon request.
Transformer is grounded to the frame and we provide a grounding lug on the frame for the earth ground.
This power distribution system is ideal for indoor or outdoor use and applications including but not limited to, construction sites, plant maintenance, plant turnarounds, shows, exhibits, and shipyard operations. These power distribution systems are popularly used in applications where external power sources are often necessary. We also offer class rated transformers for use within explosion proof and hazardous location environments.
Custom Built Systems Available:
Larson Electronics is a manufacturer and as such can build transformers to your Specifications. Although we carry several models of power distribution systems, we can deliver custom ordered units almost as quickly as our prebuilt units. If this model does not meet your needs, please contact us at 1-844-787-5483 or

Line-In Cord: 20` #6 SOOW Cord
Line-In Cord Cap: -
Primary Voltage: 480VAC 3PH
Primary Disconnect: 100A 480V 3PH Fused @ 70A N3R
Primary Panel: -
Primary Breakers: -
Primary 70A @ 480V 480VAC 3PH 100A 480V 3PH Fused @ 70A N3R - -Receptacles: - Disconnect
Receptacles Primary : - (2) 50A CS6370 [125V], (2) 30A L14-30R [125/250V], (4) 20A GFCI duplex [125V]
: 20` #6 SOOW Cord 70A @ 480V - 125A @ 240D 480VAC 3PH 100A 480V 3PH Fused @ 70A N3R - -Primary Receptacles - Disconnect 45 KVA 480V to 240D/208-120V 3PH N3R 240D/120V 3PH - 125A 240D/120V 3PH MCB N3R (2) 50A, (2) 30A, (4) 20A (2) 50A CS6370 [125V], (2) 30A L14-30R [125/250V], (4) 20A GFCI duplex [125V] GFCI Square tube frame w/ 1/8" side walls, hinged access doors, skid pockets, top pick eye & locking 8” locking casters Powder coated steel frame 48” X 48” X 62” 550 lbs
Primary Protection: Disconnect
Transformer: 45 KVA 480V to 240D/208-120V 3PH N3R
Secondary Voltage: 240D/120V 3PH
Secondary Disconnect: -
Secondary Panel: 125A 240D/120V 3PH MCB N3R
Secondary Breakers: (2) 50A, (2) 30A, (4) 20A
Secondary Receptacles: (2) 50A CS6370 [125V], (2) 30A L14-30R [125/250V], (4) 20A GFCI duplex [125V]
Secondary Protection: GFCI
Form Factor: Square tube frame w/ 1/8" side walls, hinged access doors, skid pockets, top pick eye & locking 8” locking casters
Frame Materials: Powder coated steel frame
Dimensions: 48” X 48” X 62”
Weight: 550 lbs

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