the AM-123 is optimized for use with AM-122 or AM-132 connectors

Direct OEM Fit: Designed as a drop-in replacement for the Carrier HH18HA187A

Direct OEM Fit: Ensures 100% part number 1011850 compatibility

Engineered for a specific pitch and diameter (approximately 13 inches)

if you have input voltage but 0V or significantly lower than 24V on the secondary side while disconnected from the load

Reznor 103498 Transformer Els PW 17895 the AM-123 is optimized forThe Reznor 103498 Transformer is a heavy duty control component precision engineered for commercial and industrial HVAC voltage step down applications. This 41VA transformer is specifically designed to convert a high voltage 480V primary input down to a stable 24V secondary output, ensuring safe and consistent power delivery to critical control circuits. As a genuine OEM Reznor replacement part, it maintains the precise electrical load balance