Hubbell 47AB10AJ Alternating Relay 24V Open Type

The Hubbell 47AB10AJ is a Class 47 alternating relay designed to automatically alternate the operation of two separately mounted motor-driven pumps or compressors. This 24-volt open-type control provides reliable switching to ensure even wear and readiness on both units, extending equipment life and improving system reliability.

Key Features:

• 24-volt operation for industrial HVAC and pumping applications
• Open-type construction for easy access and maintenance
• Single-pole double-throw heavy-duty 10 amp silver cadmium oxide contacts
• Transparent dust cover protects contacts while allowing visual inspection
• No-load transfer design prevents circuit switching under current load, extending relay life
• Front-wired configuration for simplified installation
• NEMA A600 rated for 10 continuous amps at 50/60 Hz
• Industrial-grade rugged design for demanding environments

This alternating relay is ideal for applications requiring automatic pump alternation, ensuring balanced operation and preventing single-unit overuse in HVAC systems, water treatment facilities, and industrial pumping stations.