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Power Distribution Panels with KVA Transformers - 150 KVA Transformer Power Distribution - Three Phase 480V to Single Phase 120/208Y - Nema 3R You're NOT logged in, Please log in   

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150 KVA Transformer Power Distribution - Three Phase 480V to Single Phase 120/208Y - Nema 3R

Part # MPD-480-150K-4X208Y.100A-1X208Y.50A-1X120.20A    Price: $19,400.00

Spec Sheet   



This Larson Electronics 150KVA power distribution substation steps down 480V three phase power and makes available 120 volts via a 20-amp 5-20 weatherproof GFCI receptacle. This portable power distribution panel system also provides four ‘pin and sleeve’ 100-amp HBL4100R9W receptacles and one HBLCS8369 50-amp receptacle for 208Y service.


The customer provides line-in cable that brings 480V three phase power to the 200-amp three phase 480V NEMA 3R fused disconnect. The disconnect protects the NEMA 3R 150KVA 480V to 120/208Y transformer, which feeds the 400-amp main breaker NEMA 3R panel on the secondary side. The secondary panel main breaker protects four 100-amp, 208Y breakers, one 50-amp, 208Y breaker and one 20-amp, 120V breaker. The secondary side 208Y power is accessed via four pin/sleeve style 100-amp Hubbell receptacles and one 50-amp, 3-pole, 4-wire Hubbell receptacle with weatherproof cover. Finally, a single 5-20 GFCI receptacle with weatherproof cover provides 120 volt service.

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The transformer is mounted on a 3/16” thick steel plate mounting platform and the load center/distribution assembly is mounted within a 2-inch by 1/8-inch thick square carbon steel tubing frame, resulting in an extremely stable, durable and well protected power distribution platform. This entire frame is powder coated and is equipped with forklift skid pockets, four heavy duty polyurethane 8-inch casters and a top located lifting eyelet which allows easy lifting with cable or chain hooks.


This power distribution system is ideal for indoor or outdoor use and applications including but not limited to, construction sites, plant maintenance, plant turnarounds, hazardous location operations, shows, exhibits, and shipyard operations. These power transformers are popularly used in applications where external power sources are often necessary and work well in combination with explosion proof lights and equipment.

Larson Electronics is a manufacturer and as such can build portable transformer systems to your specifications. Although we carry several models of power distribution transformer 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 1-800-369-6671 or to discuss your specific requirements.

Specifications / Additional Information

MPD-480-150K-4X208Y.100A-1X208Y.50A-1X120.20A Power Distribution Substation Ratings
Primary Voltage: Three Phase 480 VAC (customer provides line-in cable) UL 1640 Portable Power-Distribution Equipment
Primary Disconnect: 480V 200-amp NEMA 3R - fused NEMA 3R Indoor or Outdoor Use
Transformer: 150KVA 480V to 120/208Y NEMA 3R Made in the USA
Secondary Panel: 400-amp main breaker NEMA 3R panel – 24 space
Secondary Panel Breakers: 4X 100-amp 208Y, 1 X 50-amp 208Y and 1 X 20-amp 120V  
Secondary Receptacles: 4 X pin/sleeve HBL41—R9W, 1 X HBLCS8369, 1X 5-20 GFCI  
Dimensions: W-48" X L-48" X H-55"  
Form Factor: Powder coated/painted steel frame with forklift skid pockets, top pick-eye and 4 X 8-inch casters  
Weight: 650lbs Special Orders- Requirements
Features: Contact us for special requirements
Primary Max OCP: 180 amps at 480V Toll Free: 1-800-369-6671
Secondary Max OCP: 415 amps at 208Y (400-amp main breaker) Intl: 1-903-498-3363
Larson Electronics manufacture a wide variety of custom power distribution systems. The pictures displayed for this unit are a general representation of form factor and may not accurately represent this exact configuration in every detail due to being custom builds. The specifics for this configuration are listed in the specification table and one-line diagram. *All grounding shall comply with state and local codes and meet the minimum requirements of the National Electronic Code section 250*
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Part #:MPD-480-150K-4X208Y.100A-1X208Y.50A-1X120.20A (72897)
In Stock:Yes






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    Sale Prices in RED
Product  Part #PriceOption 1Option 2Option 3Qty
150 KVA Transformer Power Distribution - Three Phase 480V to Single Phase 120/208Y - Nema 3RMPD-480-150K-4X208Y.100A-1X208Y.50A-1X120.20A$19,400.00N/AN/AN/A 

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