Littelfuse ARP42S Alternating Relay Switch Control Module

The Littelfuse ARP42S is an alternating relay designed to automatically switch between two electrical loads or circuits. This solid-state control module provides reliable load management by alternating operation between two outputs, helping to distribute wear evenly across dual pump systems, motors, or other paired equipment.

Key Features:

• Automatic alternating control between two circuits or loads
• Solid-state design for reliable, maintenance-free operation
• Helps extend equipment life by equalizing runtime on dual systems
• Ideal for pump stations, HVAC systems, and redundant equipment applications
• Compact relay module for easy installation in control panels

This alternating relay is commonly used in commercial and industrial applications where dual backup systems need balanced operation, such as sump pump stations, cooling tower pumps, or any application requiring automatic load distribution between two identical devices.