IDEC RH2B-UAC24V Relay

The IDEC RH2B-UAC24V is a heavy-duty, 2-pole DPDT relay engineered for reliable switching in industrial control panels and HVAC systems. Part of the proven RH Series, this compact "ice cube" relay manages a 10 Amp contact rating, making it a robust choice for motor control and high-capacity electrical loads. It features integrated blade terminals (0.187-inch quick connect) designed for secure seating in standard SH2B series sockets. This 24VAC relay is the direct replacement for the legacy RH2B-UAC24 model, ensuring seamless integration during panel maintenance or equipment retrofits without requiring wiring reconfigurations.

Built with silver cadmium oxide (AgCdO) contacts, the RH2B-UAC24V provides superior conductivity and resists pitting under high-inrush conditions. With an operating temperature range of -25°C to 70°C and a dielectric strength of 2,000VAC between live and dead parts, this general purpose power relay stands up to the rigors of mechanical rooms and industrial environments. Whether you are troubleshooting an interlock circuit or upgrading an automation project, this miniature power relay offers the large switching capacity and global certifications (UL, CSA, CE) required for professional-grade electrical installations.

• High Switching Capacity: Handles up to 10A resistive or inductive loads, ideal for pilot duty and motor control applications.
• Direct Retrofit Compatibility: Serves as the precise replacement relay for the discontinued RH2B-UAC24, maintaining the same form factor and pinout.
• Space-Saving Footprint: Midget-sized housing allows for high-density mounting on DIN rails or through-panel configurations.
• Rugged Build Quality: Features durable blade terminals that ensure a vibration-resistant connection in high-cycle environments.
• Versatile 24VAC Operation: Compatible with common low-voltage control circuits used in commercial HVACR and automation platforms.

What is the difference between the RH2B-UAC24V and the older RH2B-UAC24?
The RH2B-UAC24V is the current production model and a direct replacement. It maintains identical electrical specifications and physical dimensions, ensuring it fits existing sockets without any modification to your control circuit.

Can this relay be mounted without a socket?
While the blade terminals are designed for plug-in sockets like the IDEC SH2B-05 or SH2B-05C, they can technically accept 0.187" female quick-connectors in custom applications, though socket mounting is recommended for easier maintenance and secure orientation.

Is this relay suitable for switching DC loads?
Yes, while the coil is 24VAC, the DPDT contacts are rated to switch up to 30V DC and various AC voltages, providing flexibility for diverse signal and power applications.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.