Berko 410171002 Relay

For field technicians and mechanical contractors, the Berko 410171002 Relay is an essential OEM component for maintaining system integrity in electric baseboard heaters and unit heaters. This 120V time delay relay is engineered by Marley Engineered Products to manage high-amperage loads, specifically rated for 25 amps at 120-600 VAC. By utilizing a thermal time delay mechanism, this part prevents nuisance tripping and ensures the fan cycles correctly to discharge residual heat, protecting the heating elements and optimizing HVAC energy efficiency. Whether you are performing a thermostat replacement or a complete heating system repair, this single-pole relay provides the reliability required for commercial and industrial applications. This HVAC control board accessory is compatible with various Berko, QMark, and Marley units, ensuring a drop-in fit for rapid HVAC troubleshooting and furnace maintenance tasks.

• High Amperage Rating: Supports up to 25 amps, making it suitable for heavy-duty radiant heating system applications.
• Precision Thermal Delay: Prevents cold drafts during startup and eliminates residual heat after shutdown to extend equipment life.
• Universal Control Voltage: Designed for standard 120V HVAC controls, ensuring broad compatibility across the Marley product line.
• Simplified Installation: Standard footprint allows for fast HVAC unit replacement, reducing labor time on the job site.

Is the Berko 410171002 compatible with 240V heaters?
Yes. While the control circuit operates on 120V, the relay contacts are rated to switch loads from 120VAC up to 600VAC, making it a versatile choice for various electric heat configurations.

What symptoms indicate this time delay relay needs to be replaced?
If the fan fails to start after the heating elements engage, or if the fan continues to run indefinitely after the thermostat is satisfied, the 410171002 may have failed contacts or a degraded thermal element.

Can I use this relay for 2-stage heating systems?
This is a single-pole relay. For 2-stage setups, verify the specific wiring diagram of your Berko or QMark unit to ensure proper sequence of operation.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.