Armstrong 63K93 Furnace Pressure Switch

Armstrong 63K93 Furnace Pressure Switch is a trusted choice for ensuring safe ignition and furnace performance. This snap-acting, normally open pressure switch monitors draft conditions and shuts down the burner if improper pressure is detected, protecting equipment and occupants alike. Built for 24V AC control circuits, it delivers reliable operation in standard HVAC and furnace setups.

Designed for compact installation, its rugged construction features Fine Silver contacts for low resistance and long life, with a SPST contact configuration for simple wiring. The switch is rated for 0.2 Inch WC pressure and supports up to 5 A, making it suitable for many furnace models. Dimensions are 3.18 W x 2.16 D x 2.53 H, and it integrates seamlessly where Armstrong components are specified.

• Type: Snap Acting, Normally Open
• Voltage / Current: 24V AC, 5 A
• Pressure Rating: 0.2 Inch WC
• Contact Configuration: SPST
• Contact Material: Fine Silver
• Dimensions: 3.18 W × 2.16 D × 2.53 H
• Application: Used on furnaces for safe operation

Ideal for service and replacement projects, the Armstrong 63K93 furnace pressure switch ensures safe ignition cycles and reliable furnace control across a range of installations.