Switching Relays

Product DescriptionThe Marley Engineered Products 4520-0010-000 Fan Delay Relay is designed to enhance the performance of HVAC systems by ensuring efficient and smooth fan operation. This component is essential for controlling the operation of fans within the system. Adjustable delay settings allow for precise...

'-Molded terminal numbers and circuit diagram on top of relay provide easy identification for wiring and checking system operation.Untaped coil assures cooler operation.Laminated magnet construction for higher efficiency.Base designed for easy replacement of competitive relays.Double quick-connect coil terminals.Plug compatible with Steveco 90-340 and Mars...

Product DescriptionThe Honeywell R841C1227 is a 22 Amp SPST relay designed for efficient control of electric heating systems. It operates at 24 VAC and is a reliable component in HVAC applications. Compatible with baseboard, ceiling cable, and duct heaters Switches up to a 5000...

Product DescriptionThe Argo AZ-3 Az-3 Same As Azv-243-40 is a three-zone relay for zone valves with a 40VA transformer. Three-zone relay system Includes 40VA transformer Suitable for zone valves Product HighlightsThis relay system offers a reliable solution for controlling multiple zone valves. Ideal for...

Product DescriptionFunctional Devices, Inc. presents the RIBD2421C Time Delay Pilot Relay, a reliable solution for industrial automation and power distribution needs. This Single Pole Double Throw (SPDT) relay is encased in a durable and protective enclosure, making it fit for tough environments. 10 Amp...

Product DescriptionTaco SR502-4 is a 2-zone switching relay designed to optimize your HVAC systems efficiency and operation. It features dual zones with priority control, making it an essential component for multi-zone heating systems. Expandable up to 120 zones with additional control panels. Includes external...

Product DescriptionThe Taco SR501-4 1-Zone Switching Relay offers dependable performance for controlling one zone in heating or cooling installations. Engineered with the professional in mind, this device integrates seamlessly with both conventional and programmable thermostats. Universal compatibility with 24V, 120V, and 240V systems. Fuse...

Product DescriptionThe Honeywell HPSR104 is a four zone switching relay designed for hydronic zoning applications. This relay allows for efficient management of multiple heating zones, ensuring both comfort and energy savings. Installation is simplified with reduced wiring requirements, making it suitable for HVAC professionals....

Product DescriptionThe Argo ARM-6P 6 Zone Expandable Switching Relay is designed for efficient zoning applications. It includes many features that ensure reliability and optimal performance. Electronic Fuse - Auto reset Double-sided printed circuit board construction - 100 percent factory tested for reliability 5-second Time...

Product DescriptionThe Modine Fan Relay (5H0730350000) is essential for controlling fan operations in HVAC systems. This compact relay effectively manages the power supply to the fan motor, enabling precise air circulation and temperature management in industrial settings. Designed for easy installation and wiring. Durable...

Product DescriptionThe Enviro-tec 2 Pole 30A 24V N/O Fan Relay, model PE-08-0004, is engineered to control fans and electrical loads in both industrial and commercial environments. This high-performance relay facilitates efficient operation with its robust design and technology. Designed for single-phase load switching with...

Product DescriptionThe Emerson 90-293Q is an SPDT enclosed fan relay designed for efficient, quiet operation in a variety of HVAC applications. This model offers reliable switching for single or two-speed fan motors, solenoids, and general-purpose use. Ideal for professionals seeking compact, durable electrical components....

Product DescriptionThe White-Rodgers 90-130 Fan Control Center is designed to optimize HVAC systems. This control center enables effective fan management in various environments. It supports primary voltages of 120, 208, and 240 VAC, while providing a reliable secondary voltage of twenty-four VAC. Featuring a...

Product DescriptionThe White-Rodgers 90-380 25 Amp 24V Type SPNO-SPNC Heavy Duty Fan Switching Relay is designed for reliable operation in various HVAC systems. It features a compact, totally enclosed design suitable for both heating and cooling applications and general switching tasks. Reliable operation in...

Product DescriptionTaco Four Zone Switching Relay (SR504) allows for effective power management with four independently controlled zones. Designed for industrial applications, the SR504 ensures consistent and efficient electrical load control. Four switching zones Programmable priority settings Solid-state switching technology Product HighlightsThis relay is equipped...

Product DescriptionThe Taco SR501-OR-4 is a professional-grade switching relay designed to optimize the performance of hydronic heating systems through precise temperature regulation. This reliable tool ensures efficient energy management, even in outdoor installations. Outdoor installation capability enhances versatility. Advanced control features activate or deactivate...