Rheem-Ruud 42-19737-01 DPST-NO Sequencing Relay 24VAC

The Rheem-Ruud 42-19737-01 is a genuine OEM double pole single throw normally open (DPST-NO) sequencing relay designed for Rheem, Ruud, and Weatherking HVAC systems. This relay operates on a 24VAC coil and is engineered to control heating elements and blower motors in electric furnaces, air handlers, and heat pump auxiliary heating systems.

Key Specifications:

• Coil Voltage: 24VAC at 50/60 Hz
• Contact Configuration: DPST with two normally open contacts
• Full Load Amperage (FLA): 12A at 120V, 6A at 230V, 6A at 277V, 3A at 460V
• Locked Rotor Amperage (LRA): 72A at 120V, 36A at 230V, 36A at 277V, 18A at 460V
• Resistive Rating: 20.8A at 120-277V, 10A at 460V
• Terminal Connections: 1/4 inch quick connect tabs

Replaces Part Numbers: 42-19736-07, 42-19736-12, 42-19736-13, 42-19736-14, 42-19736-16, 42-20202-01, 42-21579-07, 8201-5543, 8201-5546

This factory OEM Protech part ensures reliable sequencing operation to prevent electrical overload by staging the activation of heating elements. The normally open contact design provides fail-safe operation, and the dual independent circuits allow for versatile wiring configurations in electric heating systems.