Lennox 16D74 Relay

Time Delay Relay

16D74 is the direct replacement for R76700452

Lennox 16D74 Time Delay Relay – 105241-01 SSAC CT1S45 OEM Timer

Ensure precise HVAC control and reliable system performance with the Lennox 16D74 Time Delay Relay. Also known as Littelfuse SSAC CT1S45, this solid-state delay-on-make/delay-on-break timer is an authentic Lennox-approved OEM replacement for select air handler models.

Key Product Details

• Catalog Number: 16D74

• Model/Part Number: 105241-01

• UPC/EAN: 66255151514

• Type: Delay-On-Make / Delay-On-Break Timer

• Output Type/Form: Solid state, normally open

• Fixed Delays: 1-second delay on make, 45-second delay on break

• Electrical Rating: 24 VAC, 0.75 Amp

• Frequency: 50/60 Hz

• Series: SSAC CT

Compatibility

• Designed for Lennox CBX25UH Series Air Handler

• Fits Aire-Flo BCS3M Series Air Handler and other approved Lennox systems

Features & Benefits

• Combines delay-on-make (1 sec) and delay-on-break (45 sec) functions in one unit

• Fully solid-state and encapsulated for durability and consistent performance

• Simple interconnectability with other CT modules for flexible HVAC applications

Upgrade or replace your HVAC timer with the Lennox 16D74 Time Delay Relay to maintain optimal system operation, protect components, and ensure efficient start/stop sequencing. This genuine OEM relay delivers dependable control for residential and commercial Lennox equipment.