Edmundson Industrial sources industrial control transformers — the small VA-rated transformers that step control voltage down (commonly 480/240 V to 120 V) to power starters, relays, solenoids, and PLC circuits. We source from 50 VA through 5 kVA, fused and unfused, single- and multi-tap. Send the VA rating and primary/secondary voltage, or the nameplate, and we quote availability, condition, and lead time.
Independent sourcing, not an authorized distributor. We supply control transformers new, surplus, and used-tested, with condition disclosed before sale. Manufacturer names are used here for reference only.
Typical specifications
| Spec | Typical |
|---|
| Power range | 50 VA to 5 kVA |
| Primary voltage | 240, 480, 600 V (and 230 / 460, multi-tap) |
| Secondary voltage | 120 V (also 24 V, 230 V) |
| Protection | Fused (primary / secondary) or unfused |
| Mounting | Open frame, panel, or enclosed |
Brands we source & cross-reference
HammondSquare DAcmeSiemensEaton / Cutler-HammerGeneral Electric
How to specify a control transformer
- VA (burden) rating — total sealed VA plus the inrush of the largest coil
- Primary voltage (and taps)
- Secondary voltage (commonly 120 V)
- Fused or unfused
- Frequency (50 / 60 Hz) and mounting
How we quote a control transformer
- Send the VA rating and primary / secondary voltage, or the nameplate off the existing unit.
- We confirm taps, fusing, frequency, and mounting.
- We quote condition, price, and lead time — new, surplus, or used-tested, same-day on most requests.
Condition & sourcing
Every control transformer is supplied new, surplus, or used-tested, with condition disclosed before sale and photos on request. We are an independent surplus and sourcing company, not an authorized distributor.
FAQ
How do I size a control transformer?
Add up the sealed VA of every device on the control circuit, then check the inrush (sealed plus inrush) of the largest coil so the transformer holds voltage when it pulls in. Send your load list or the existing nameplate and we match the VA.
What primary and secondary voltages do you carry?
Common control transformers step 240, 480, or 600 V down to 120 V, often with multiple taps; 24 V and other secondaries are available. Send the primary and secondary you need.
Do you carry obsolete control transformers?
Yes. We source discontinued and surplus control transformers and cross-reference to a current equivalent by VA and voltage. Condition is disclosed before sale.
Are you an authorized distributor?
No. Edmundson Industrial is an independent surplus and sourcing company, not an authorized distributor. We supply control transformers new, surplus, and used-tested with condition disclosed before sale.
Request a Quote
Request a Quote
or send the part number or specs to sales@edmundsonindustrial.com · (832) 975-8827 · Houston, TX. Same-day response on most requests.
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