Three-phase machines that also run 277 V controls or lighting need a power inlet that brings in a neutral as well as the three phases. The Techspan SCM530B7W is a 30 A, 4-pole 5-wire IEC 60309 pin and sleeve inlet for 277/480 V three-phase wye systems, keyed at 7h and sealed to IP67. It mounts on the equipment so a matching watertight cord connector can feed it.
Why electricians pick it
- 277/480 V wye rating with a neutral pin for 277 V loads.
- 7h keying stops 120/208 V and 347/600 V cord sets from mating.
- IP67 watertight for washdown, outdoor and wet areas.
- Valox housing, nickel-plated brass pins, terminals marked L1-L2-L3-N-G.
- Series listings per Techspan: cULus to UL 1682/1686 and CSA C22.2 No. 182.1.
Specifications
| Spec |
Detail |
| Brand |
Techspan (EUREKA-HD series) |
| Model |
SCM530B7W |
| Type |
Pin and sleeve inlet, IEC 60309 |
| Rating |
30 A, 3-phase wye 277/480 V |
| Poles / wires |
4-pole, 5-wire (3 phases, neutral, ground) |
| Clock position |
7h |
| Protection |
IP67 watertight |
| Conductor range |
14 to 10 AWG (30 A inlets, per catalogue) |
| Matching cord connector |
SCM530C7W |
Pro tip from the counter
The inlet terminals only take 14 to 10 AWG. If the machine's internal feeder from the inlet to its disconnect was run in 8 AWG for voltage drop or a long cabinet, have your electrician land short 10 AWG leads on the inlet and join them to the heavier wire at a terminal block instead of forcing oversized conductors under the screws.
Best for: portable 480 V machines with 277 V controls, washdown and food plant equipment, outdoor process skids, temporary power connections
Downloads: Pin and sleeve catalogue (PDF)
We ship Canada-wide from Vaughan, ON. Trade pricing is available through a quote or (905) 553-7171.