Description
Product Summary
The Supco SL7490 Defrost Thermostat 4387490 is a professional-grade replacement part from Supco (Sealed Unit Parts Co.), a trusted name in HVAC/R and appliance parts since 1945. The SL series line of exact replacement heavy-duty sealed bimetal disc controls meets the higher electrical requirements of commercial applications. Can handle electrical loads up to 25 amps at 120/240VAC.
Limit switches and temperature controls (snap-disc thermostats) protect furnaces, air handlers, and appliances from overheating and control fans and heaters by temperature. This group includes automatic and manual-reset limits, rollout switches, thermal cutoffs, fan controls, plenum limits, and defrost terminators. Always replace with the same open/close temperature ratings and mounting style.
Key Features
- 42" lead
- CSA® approved
- Metal case
- Rated 10A/120V, 5A/240V
- See Cross Reference tab for additional numbers
- UL® recognized
- WARNING: Prop 65 info
Specifications
| Brand | Supco |
|---|---|
| Part Number | SL7490 |
| Part Type | Limit Switch / Temperature Control |
| Open (°F) | 48°F |
| Close ( °F) | 18 °F |
| Tube Mount | 5/16" push-on |
| Amperage | 10A @ 120V |
| Amperage | 5A @ 250V |
Cross Reference
The Supco SL7490 is a direct replacement for the following OEM and competitor part numbers. Always verify ratings and fit against the original part before installing.
| Replaces Part # | Manufacturer | Description |
|---|---|---|
| 2176941 | Whirlpool® | |
| 4387490 | Whirlpool® | |
| 2183073 | Whirlpool® | |
| 9791823 | Whirlpool® |
What's Included
- (1) Supco SL7490 Defrost Thermostat 4387490
Safety: Always disconnect power and follow lockout/tagout procedures before servicing electrical components. Installation should be performed by a qualified technician.
