Resideo - Honeywell Home R845A1030 Switching Relay

The R845A1030 Switching Relay from Resideo Honeywell Home is built for reliable hydronic control and seamless automation. This AC-operated relay uses DPST contacts to switch loads with precision and safety.

Designed for versatile installations, it handles 120/240 VAC at 50/60 Hz, with a 24 VAC coil and a coil current of 0.4 A. It is UL and CSA approved for dependable performance in residential and light commercial systems. The temperature rating is 115°F at 60 Hz. The compact housing measures 4-1/4" W x 2-5/16" D x 5-1/4" H and includes an integral transformer for easy wiring. Pilot duty is rated at 50 VA on the secondary, making it ideal for hydronic control circuits. The relay supports a wide range of load currents, including 7.4 A at 120 V (full load) and 3.7 A at 240 V (full load), with higher inrush ratings such as 44.4 A at 120 V (locked rotor) and 22.2 A at 240 V (locked rotor). For resistive loads, ratings are 10 A at 120 V and 6 A at 240 V.

• DPST contact configuration
• AC operated with 24 VAC coil
• Supports 120/240 VAC, 50/60 Hz
• Coil current: 0.4 A
• UL and CSA approved
• Includes integral transformer
• 2-wire terminal
• Pilot duty: 50 VA (secondary)
• Load ratings: 7.4 A @120 V; 3.7 A @240 V (full load); 44.4 A @120 V; 22.2 A @240 V (locked rotor)
• Resistive ratings: 10 A @120 V; 6 A @240 V

Ideal for hydronic control in heating systems and compatible control networks.