IDEC Relays RH3B-ULAC120V Relay

For contractors requiring a dependable, high-capacity switching solution, the IDEC RH3B-ULAC120V is a professional-grade 3PDT relay designed for demanding HVACR and industrial control applications. This 120VAC power relay features a robust 10-amp contact rating, providing the necessary overhead for inductive motor loads and heavy-duty solenoid cycles without premature pitting. Built into a compact midget housing, it maximizes rail space in crowded control panels while maintaining standard blade terminal spacing for easy integration into existing 11-pin IDEC relay sockets or third-party equivalents. The integrated LED indicator provides immediate visual diagnostics, allowing field technicians to verify coil energization at a glance during troubleshooting. Utilizing silver cadmium oxide contacts, this miniature power relay effectively minimizes voltage arcing, ensuring high electrical durability across thousands of cycles. Whether you are managing fan sequences or complex interlocking safety circuits, this RH series model delivers the mechanical reliabilty and precise switching performance expected in mission-critical environments.

• 10A Switching Capacity: High-current 3PDT configuration handles significant power loads in a compact footprint.
• Visual Diagnostics: Built-in LED indicator streamlines system testing and rapid fault detection.
• Universal Compatibility: Standard blade terminals allow for a simple drop-in replacement into common 11-pin sockets.
• Arc Suppression: Silver cadmium oxide contacts are engineered to reduce wear and handle resistive or inductive loads efficiently.

• What socket is compatible with the RH3B-ULAC120V? This relay is typically paired with the IDEC SH3B-05 or SH3B-05C DIN rail mount sockets.
• Can this relay be used for DC loads? While optimized for 110/120V AC coils, the contacts are rated for up to 30V DC at 10A, making it versatile for mixed-voltage control logic.
• What is the maximum operating temperature? It is rated for operation between -25?C and +70?C, suitable for unconditioned mechanical rooms and industrial enclosures.

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.