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Power Distribution Panels with KVA Transformers - 112.5KVA Portable Temporary Distribution Stepup Transformer - 208Y/120V to 480V - (4) 20A GFCI 120V You're NOT logged in, Please log in   

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112.5KVA Portable Temporary Distribution Stepup Transformer - 208Y/120V to 480V - (4) 20A GFCI 120V

Part # MPD-208Y.120V-112.5KVA-480V-4X20A.120V    Price: $11,770.58

Spec Sheet   

Dimensions   Manual   

Made in Texas

The MPD-208Y.120V-112.5KVA-480V-4X20A.120V portable power distribution system is designed to enable operators to connect to 208Y/120V three phase primary voltage and step it up to 480V three phase to operate lights and equipment. On the primary side, operators can connect up to four 120V, 20-amp devices. On the secondary side, 480V three phase power is made available via 20` of 1/0 cord. This versatile system enables operators to make the most of a single 208Y/120V 3-phase connection via an operator provided line-in cord.


Operation: The customer provided line-in cord brings 208Y/120V three phase power to the NEMA 3R 400-amp main breaker panel. This main panel contains four 20-amp, 120V breakers protecting four 20-amp, 5-20R duplex receptacles, and one 350-amp breaker protecting the transformer. All receptacles are equipped with waterproof covers. The NEMA 3R transformer steps up 208Y/120V three phase power to 480V three phase and passes the current to the secondary side. The secondary side of the transformer feeds a NEMA 3R 200-amp, 480V 3-phase fused disconnect, which contains three 150-amp time delay fuses protecting the 480V line-out service. Line-out service is provided via 20` of 1/0 4C Type-W cord with blunt cut end.

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 polyurethane 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.

Click Photo to Enlarge
Click Photo to Enlarge
Click Photo to Enlarge

Grounding: Transformer is grounded to the frame and we provide a grounding lug on the frame for the earth ground.
~Please check all motor loads for dual rated motors that will work 208 or 240.~

Applications: 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 we can build portable power distribution systems to your specifications. Although we carry several models of portable power distribution systems in stock, 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-208Y.120V-112.5KVA-480V-4X20A.120V Power Distribution System Ratings
Line-In Cord: Customer Provided UL 1640 Portable Power-Distribution Equipment
Primary Voltage: 208Y/120V 3P NEMA 3R Indoor or Outdoor Use
Primary Panel: 208Y/120V 3P N3R 400A Made in the USA
Primary Breakers: (4) 20A (120V RCPT) & (1) 350A (XFMR)
Primary Panel Outlets: (4) 5-20R GFCI Duplex (120V) w/ Weatherproof covers
Transformer: 112.50KVA 208Y/120V-3P to 480V-3P N3R
Secondary Voltage: 480V 3P
Secondary Disconnect: 200A Fused at 150A  
Secondary Line-Out Cord: 20` 1/0 5C Type-W  
Form Factor: Square tube frame w/ skid pockets, top pick eye & locking 8” casters  
Dimensions: 34”-L X 40”-W X 58”-H  
Weight: 700lbs Special Orders- Requirements
Features: Contact us for special requirements
Max Primary OCP: 400A @ 208V 3P Toll Free: 1-800-369-6671
Max Secondary OCP: 150A @ 480V 3P 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-208Y.120V-112.5KVA-480V-4X20A.120V (144546)
In Stock:Yes



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    Sale Prices in RED
Product  Part #PriceOption 1Option 2Option 3Qty
112.5KVA Portable Temporary Distribution Stepup Transformer - 208Y/120V to 480V - (4) 20A GFCI 120VMPD-208Y.120V-112.5KVA-480V-4X20A.120V$11,770.58N/AN/AN/A 

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