Napco Time Delay Fan Relay DPST Switch, 24 V, 24A34-4, 33245, NS104

Time Delay Fan Relay DPST Switch | 24V | NS104

Ensure proper blower fan sequencing in HVAC systems with this brand-new NS104 time delay fan relay. Featuring a DPST switch configuration and 24V coil voltage, this relay is engineered for dependable performance in heating and cooling applications. With a delay-on range of 30–90 seconds and delay-off range of 1–30 seconds, it helps prevent short cycling and ensures efficient airflow control.

Features & Benefits:

• ✅ DPST switch configuration with 24V coil voltage
• ⏱️ Delay-On: 30–90 seconds | Delay-Off: 1–30 seconds
• Pressure-sensitive short circuit interrupting capability
• Compatible with a wide range of HVAC systems
• Condition: Brand New – Unused

Replaces Part Numbers:

GS104, Q104, TD-34, 24A34-4, 33245

✅ Fits HVAC Systems & Furnace Models:

Compatible with various residential and commercial HVAC systems using time delay fan relays.
Model-specific compatibility varies by system design. Please verify your part number and relay configuration before ordering.

Common Fixes:

• ❌ Blower fan starts too early or runs too long
• ⚠️ Short cycling or inefficient airflow
• Relay failure causing inconsistent fan operation
• Upgrade for restored timing and system efficiency

️ Installation Tips:

• Disconnect power before servicing HVAC equipment
• Mount relay securely and connect wires per system schematic
• Confirm coil voltage and switch configuration match system requirements
• Test fan delay timing after installation to ensure proper sequencing

Control the cycle. Protect the system. Restore your HVAC performance with a high-quality Napco® relay.