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Lennox 88W78 - 103454-01 Thermal Sequencer Relay, SPST N.O., ON 25-50 Sec, OFF 25-45 Sec, 24 Volts

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88W78
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Lennox 88W78 - 103454-01 Thermal Sequencer Relay, SPST N.O., ON 25-50 Sec, OFF 25-45 Sec, 24 Volts

SKU
88W78
Brand:
Reviews (0)
$30.25
Out of stock

(special order is available)

SPECIAL REQUEST

Important Notice:

This is a special order item and will ship with a minimum lead time of 14 days.

Special order items are non-returnable and cannot be canceled once placed.

Please note: Pricing is not final and will be confirmed after we contact you.

The Lennox 88W78 (part number 103454-01) is a high-quality OEM thermal sequencer relay engineered for precise control of heating system elements. Designed with a single-pole, single-throw (SPST) normally open configuration, this sequencer ensures staged activation and deactivation of electric heat elements and blowers, improving both system efficiency and safety.Technical Specifications:
  • Type: Thermal Sequencer Relay
  • Configuration: SPST (Single-Pole, Single-Throw), Normally Open
  • Voltage Rating: 24 VAC
  • ON Time Delay: 25–50 seconds
  • OFF Time Delay: 25–45 seconds
  • Switch Rating: 25A resistive @ 240 VAC
  • Mounting Style: Surface or bracket mount
  • Number of Terminals: 4 (2 load, 2 control)
  • Operating Temperature Range: -20°F to 160°F
  • Dimensions (approx): 2.2" H x 1.7" W x 1.2" D
  • Agency Approvals: UL recognized component
Applications:
  • Lennox electric furnaces
  • Air handlers with staged heat
  • Compatible with select residential and light commercial HVAC systems
Trusted by HVAC professionals, this relay offers dependable performance, smooth sequencing, and extended service life. Available now at Beenimax—your source for genuine Lennox replacement parts.
 
 
 
 
 
 
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