Aaon R17120 Adjustable Current Switch with LED 1-135A

The Aaon R17120 is an adjustable current switch designed for monitoring electrical current in HVAC systems, particularly in rooftop units, air handlers, and commercial HVAC applications. This current sensing device provides reliable protection and verification of motor and equipment operation by detecting changes in current flow and switching when the current exceeds or falls below the adjustable set point.

Key Features:

• Adjustable trip point range from 1 to 135 amps for flexible application configuration
• Built-in LED indicator for easy visual status monitoring and calibration
• Self-powered design draws power from the monitored conductor, eliminating need for external power source
• Normally open contact configuration with solid-state or mechanical output
• Suitable for monitoring blower motors, compressors, fans, and other HVAC equipment
• Can be used as a safety device or for equipment status verification

This current switch is commonly used in AAON rooftop units and air handling equipment to monitor motor operation, detect overcurrent or undercurrent conditions, and provide compressor freeze protection. The LED indicator simplifies setup and troubleshooting by providing immediate visual feedback of the switch status and current flow conditions.