Napco Time Delay Fan Relay DPST Switch, 24 V, B1256504, NS103

⚡ Time Delay Fan Relay | DPST • 24V | B1256504 / NS103

Brand new Time Delay Fan Relay DPST Switch, part numbers B1256504 and NS103. This relay provides controlled fan operation with built‑in delay timing, helping prevent short cycling and ensuring proper system airflow.

Designed for HVAC systems requiring timed fan engagement and shutdown. Offers dependable switching performance with factory‑set delay ranges.

⚙️ Features & Specifications

• Switch Type: DPST (Double Pole Single Throw)
• Coil Voltage: 24V
• On Delay: 1–24 seconds
• Off Delay: 45–110 seconds
• Controls fan operation timing
• Prevents short cycling and improves system efficiency
• Durable relay construction for long service life
• Condition: Brand New – Unused

Replaces Part Numbers

GS103
Q103
TD-12
24A34-3
33244

Compatible Models

Universal

Restore proper timed fan operation with this brand new DPST time delay relay — reliable, efficient, and ready for installation.