Armstrong 13W13 Furnace Blower Fan Relay

Armstrong 13W13 Furnace Blower Fan Relay is a dependable furnace blower relay designed for use on furnaces. This compact yet rugged switch controls the blower motor with precise timing, supporting steady airflow, improved comfort, and efficient furnace operation in both residential and light commercial settings. Engineered for quick installation, it fits standard control panels and offers reliable switching even in demanding HVAC environments. Whether upgrading an aging relay or stocking for field service, the Armstrong 13W13 model delivers long life and easy maintenance.

Designed as a Type Relay, it supports 24V AC control circuits and is built for versatile operation across common voltages found in furnaces. This makes it an ideal replacement part for Armstrong units and compatible boards, delivering consistent performance from start to runtime. The compact dimensions—4 inches long, 3 inches wide, and 2.27 inches deep with a 1.50 inch height—help it fit tight enclosures, while the robust voltage and current ratings ensure dependable service across a range of electrical systems.

• Type: Relay
• Used On: Furnace
• Dimensions: 4" L x 3" W x 2.27" D x 1.50" H
• Voltage Rating: 24V AC 50/60 Hz
• Current Rating: 12 A full load / 60 A locked rotor at 125V AC; 8 A full load / 48 A locked rotor at 277V AC
• Resistive Rating: 18 A at 277V AC