American Standard RLY1172 Fan Relay 230V 16A SP4T

Product Description

The AMERICAN STANDARD RLY1172 is a single-pole four-throw (SP4T) fan relay designed for use in forced-air HVAC systems. It operates on a 230-volt load circuit and is controlled by a 24-volt coil, which is the standard low-voltage control signal used in residential and light commercial HVAC equipment. Rated at 16 amps, the RLY1172 switches fan motor circuits in response to thermostat or control board signals, enabling proper sequencing of blower and condenser fan operation. Licensed HVAC technicians install this relay as an OEM-specification replacement component.

This relay is suited for forced-air heating and cooling systems where fan operation must be controlled by a low-voltage signal. The 24-volt coil rating aligns with standard thermostat control wiring found in split systems, package units, and air handlers. The SP4T configuration allows one control signal to route power across multiple circuit paths, making it appropriate for multi-speed fan motor applications or systems requiring multiple switched outputs from a single coil activation.

Key Features

• SP4T (single-pole four-throw) switching configuration for multi-path circuit control
• 230-volt load voltage rating suitable for residential and light commercial HVAC equipment
• 16-amp current rating handles standard fan motor loads
• 24-volt coil operates on standard low-voltage HVAC control circuits
• OEM part number for AMERICAN STANDARD equipment

Compatibility

Designed as an OEM-style replacement fan relay for AMERICAN STANDARD HVAC systems requiring a 230-volt, 16-amp SP4T relay with a 24-volt control coil.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out all power to the unit before removing or installing the relay. Verify that the replacement relay matches the voltage, amperage, and coil ratings of the original component before energizing the system. Work should conform to applicable local electrical codes and NEC requirements for low-voltage control wiring.