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Product Description
The SUPCO SUP-90374 is a general-purpose fan relay designed for HVAC and industrial applications. This relay operates on a two hundred forty volt AC control circuit and employs SPDT contacts. It is ideal for various switching tasks in equipment.
- SPDT (Single Pole Double Throw) contacts
- Operating voltage of two hundred forty VAC
- Suitable for HVAC and industrial applications
Product Highlights
This fan relay is used for reliable operation in HVAC and refrigeration settings, ensuring adequate fan control for efficient performance.
Product Information
Standard Information
- Brand: SUPCO
- MPN: SUP-90374
Key Features:
- OEM Packard 2-pole definite purpose contactor
- 40 amp resistive load rating for typical HVAC condenser and heat pump applications
- 24 VAC coil for control by standard low voltage thermostat or control circuits
- Two poles of power switching for disconnecting both sides of the load when de-energized
- Compact open-frame design for installation in equipment control compartments
- Line, load, and coil terminals arranged for straightforward field wiring
Compatibility & Applications:
- Intended for use in air conditioners, heat pumps, and other HVAC equipment requiring a 2-pole, 40 amp, 24V coil contactor
- Suitable for residential and light commercial outdoor units, air handlers, and other equipment within the contactor's ratings
- Used as a replacement where equipment specifications call for a 2-pole contactor with similar electrical ratings and coil voltage
Installation & Operation Notes:
- Disconnect power at all sources and verify that all circuits are de-energized before starting work
- Mount the contactor securely in the control compartment or electrical panel as directed by the equipment manufacturer
- Move line, load, and control wires from the existing contactor to the new contactor, matching wiring diagrams and terminal markings
- After energizing the system, verify that the contactor pulls in and opens cleanly, with proper operation during system start and stop cycles
- Confirm that all terminations are tight and that wiring is supported to prevent strain at the terminals
Maintenance & Troubleshooting:
- Inspect the contactor during routine HVAC maintenance for pitted or burned contacts, coil discoloration, or mechanical binding
- Replace the contactor if the coil fails to energize, if the contacts do not close fully, or if there is evidence of overheating or excessive humming
- If repeated contactor issues occur, verify that load current and control voltage are within specification and that short cycling is not overstressing the contactor
Certifications & Compliance:
- Meets ARI 780/790 Standard
User Reviews & Q&A Summary:
- Common theme is "correct part" for the intended replacement, with users reporting it worked as expected after installation
- Review feedback frequently mentions straightforward installation for a direct replacement
- Value and fulfillment are recurring positives (good deal/price and fast shipping)
Product Highlights
24VSpecs
| Type: | SPNO |
|---|---|
| Voltage: | 24V |
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