York / Goodman S1-2940A3541 Transformer — 120V Primary / 24V Secondary — 40VA
Replacement control transformer commonly used in HVAC equipment where a 120VAC input is stepped down to 24VAC
for control circuits (thermostat/relay/board power).
Item Overview
- Part / Model: S1-2940A3541
- Electrical Rating: 40VA (Class 2 style control transformer use)
- Input / Output: 120VAC → 24VAC
- Use: Powers low-voltage HVAC controls (verify application before purchase)
Important: Please match your existing part number and verify ratings/terminals before ordering.
If you’re unsure, message us your model/serial and photos of the old part label.
Highlights
- Clean, straightforward 120V-to-24V step-down power
- Ideal for control boards, relays, and thermostat circuits
- Packed with care to protect terminals and label
Quick Facts
Primary120 VAC
Secondary24 VAC
Power40 VA
Part #S1-2940A3541
Condition & Included
- Condition: New / Used (set this to match your actual item)
- Included: 1 × Transformer (exactly as pictured)
- Notes: Minor cosmetic marks from storage/handling are possible
Specifications
| Type | Power Transformer (Step-down) |
|---|
| Brand / Fitment | York / Goodman (verify compatibility by part number) |
|---|
| Primary Voltage (AC) | 120 V |
|---|
| Secondary Voltage (AC) | 24 V |
|---|
| Power Rating | 40 VA |
|---|
| Phases | 1 |
|---|
Specs are provided for buyer convenience. Always verify against your equipment requirements.