White-Rodgers 5D51-35 Fan and Limit Control

White-Rodgers 5D51-35 Fan and Limit Control is a universal-type device that regulates furnace fans or blowers while serving as a high-limit safety control. With a temperature range of 50 to 265°F and a Close-On-Rise contact configuration, it delivers reliable performance in compact spaces.

UL and CSA approved, this unit is ideal for residential and commercial HVAC installations where safety and compliance matter. Designed for narrow-space limitations, it features a 5-inch element length and compact overall dimensions of 2.9 in W x 1.6 in D x 4.3 in H.

The differential temperature rating can be configured to 15°F (adjustable) or fixed at 25°F for precise timing, while electrical ratings support 14 A at 120V AC, 7 A at 240V AC (FLA), and 5.6 A at 24V AC (valve and relay).

Ideal for controlling a fan or blower and acting as a high-limit safety control, this White-Rodgers control delivers dependable operation in tight installations.

• Type: Universal Fan and Limit Control
• Temperature range: 50–265°F
• Differential: 15°F adjustable; 25°F fixed
• Contact: Close-On-Rise
• Applications: Narrow-space design; regulates fan/blower and acts as high-limit safety
• Safety and ratings: UL and CSA approved; 14A @ 120V, 7A @ 240V (FLA), 5.6A @ 24V AC