USED ALLEN-BRADLEY 1489-AAHS3

The Allen-Bradley 1489-AAHS3 Series A Signal and Auxiliary Switch (5VDC) is an industrial accessory module designed to provide reliable auxiliary and signal contact feedback for miniature circuit breakers and protection devices. It is used to indicate breaker status (such as ON/OFF or TRIPPED conditions) and to provide low-voltage control signals to PLCs, monitoring systems, or alarm circuits. This allows operators and automation systems to remotely verify electrical system status and integrate breaker conditions into control logic for improved safety and diagnostics.
This module is typically mounted directly onto compatible Allen-Bradley 1489 series circuit protection devices and operates as a mechanical linkage-based switch that changes contact state when the breaker operates. Rated for low-voltage control applications such as 5VDC signaling, it is commonly used in industrial control panels, electrical distribution systems, automation equipment, and machine safety circuits. Its compact design and dependable switching performance make it ideal for system monitoring, status indication, and integration into modern industrial automation architectures.
Key Features:
Auxiliary and signal contact switch module
Provides breaker status indication
Designed for Allen-Bradley 1489 series devices
Low-voltage 5VDC signal compatibility
Mechanical linkage operation for reliable switching
Compact DIN-mounted accessory design
Integrates with PLC and control systems
Specifications:
Brand: Allen-Bradley 
Model: 1489-AAHS3
Series: A
Type: Signal and Auxiliary Switch Module
Voltage: 5VDC (signal/control applications)
Function: Auxiliary contact / status monitoring
Mounting: Direct mount to compatible breaker
Applications:
Industrial control panels
Circuit breaker status monitoring
PLC input signaling systems
Machine safety and control circuits
Electrical distribution systems
Automation and remote monitoring systems

Weight: 5 lbs
Dimensions: 8 × 7 × 6 in