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Product Description
The MOTORS AND ARMATURES (MARS) 19170 is an HVAC Potential Relay designed for efficient performance in the HVAC industry. This relay operates within voltage ranges of two hundred eighty-five to three hundred five volts for pick-up and thirty-five to seventy-seven volts for drop-out. It meets the necessary standards for original equipment relays.
- Voltage Rating: Three hundred five volts
- Contact Rating: Thirty-five amps at four hundred volts AC
- Mounting Type: Tab mount bracket
Product Highlights
This relay is built for reliability in HVAC systems. It ensures proper cycling in equipment and allows for effective control of electrical currents in HVAC applications.
Product Information
Standard Information
- Brand: MOTORS AND ARMATURES (MARS)
- MPN: 19170
Features:
- 50/60 cycle
- UL and CSA approved
- Contact rating 35 amp, 480 VAC
- Non-positional
- Instructions and wiring diagram included in each relay
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
502vSpecs
| Product Type: | Relay |
|---|---|
| Voltage: | 502v |
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