Power Cases

Our power cases are vital parts of a single phase AC power distribution system that carries electricity from the power grid via a meter service to individual loads along the railroad right-of-way.

The local power company’s 240V AC is stepped up to a 440C AC from our step-up case then fed downstream to a 240V or 120V step-down case. Each case is capable of powering signal appliances without unnecessary voltage loss. Our local disconnect case allows power feed through with a tap for individual locations. We specialize in building custom transformer boxes to suit your needs.

POWER CASE CONSTRUCTION

  •  Sized appropriate transformers – 5, 7.5, 10 and 15KVA
  •  Lockable cases wired according to load (AREMA 10.4.1)
  •  5052 marine grade, 1/8” aluminum
  •  TIG welded construction with 304 stainless steel hinge and locking mechanism
  •  Stainless steel fasteners
  • Mounts to concrete or wood posts
  •  Voltage warning signs on the front and side of case
  •  Transformer protected by circuit breaker and lightning surge arrester
  • Ground rods and grounding material included
  •  Metal rodant screen on ventilation
  •  10 micron filter

STEP UP CASE

Wired complete with 240V to 440V tapped Square D transformer, 440V arrester, breaker, and wire sized to max wattage.

  •  5KVA – IRP-B3-SU-5KVA
  •  7KVA – IRP-B3-SU-7.5KVA
  •  10KVA – IRP-B3-SU-10KVA
  •  15KVA – IRP-B4-SU-15KVA

LOCAL DISCONNECT CASE

Wired complete with 440V to 120V/240V tapped Square D transformer, 440V arrester, 2 each disconnects and fuses.

  •  5KVA – IRP-B4-LD-5KVA
  •  15KVA – IRP-B4-LD-15KVA
  •  IRP-B4-LD-7.5KVA
  •  IRP-B4-LD-10KVA

STEP DOWN CASE

Wired complete with 440V to 120V/240V tapped Square D transformer, 440V arrester, breaker, and wire sized for max wattage.

  •  5KVA – IRP-B3-SD-5KVA
  •  7KVA – IRP-B3-SD-7.5KVA
  •  10KVA – IRP-B3-SD-10KVA
  •  15KVA – IRP-B4-SD-15KVA

MISCELLANEOUS MATERIALS

  •  IRP-B4 – Case only, 48”Hx32”Wx16”D, aluminum
  •  IRP-B3 – Case only, 38”Hx28”Wx16”D, aluminum
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