Secop Diversitech 117U4061 Start Relay

For veteran technicians looking for a drop-in replacement, the Secop Diversitech 117U4061 Start Relay is a reliable current-sensing solution for 120V refrigeration compressors. Engineered as an HST current relay, this component is frequently found in Nidec Secop (formerly Danfoss) systems, specifically designed for high starting torque (HST) applications including NL, NF, MN, SC, and PL compressor series. This 1-pole relay features 1/4" spade connections for a fast, secure electrical interface, facilitating quick field swaps. It is rated for a 120V start relay circuit, providing the precise dropout and pickup current necessary to disengage the start winding once the motor hits approximately 75% of its rated speed. By utilizing OEM Secop replacement parts, contractors ensure the long-term reliability of single-phase induction motors in commercial cooling and residential refrigeration rigs. Its robust construction minimizes electrical stress during the critical startup phase, preventing winding burnout and ensuring stable compressor performance under heavy thermal loads.

• Universal Compatibility: Optimized for Secop and older Danfoss compressor platforms using 120V power supplies.
• Standardized Connections: Features 1/4" spade connectors for seamless integration into existing wiring harnesses.
• Precision Switching: Functions as a high-performance compressor start relay with verified dropout/pickup current thresholds to protect motor windings.
• Heavy-Duty Design: Built for high starting torque hvac applications where reliable motor engagement is mandatory.
• Direct Replacement: Matches Secop 117U4061 technical specs for a plug-and-play installation without the need for mounting modifications.

How do I know if my 117U4061 start relay is failing?
Common symptoms include the compressor humming without starting, audible clicking from the relay housing, or the motor cycling on its internal thermal protector. Testing for continuity across the contacts or checking for blackened terminals is recommended.

Can I use this relay on a 230V system?
No, this specific model is a 120v start relay. Using this on a higher voltage circuit will result in immediate component failure and potential damage to the compressor’s start winding.

What compressor models does this relay support?
It is primarily utilized with Secop/Danfoss NL, NF, MN, SC, and PL series compressors configured for CSIR (Capacitor Start, Induction Run) operation. Always verify the part number against the manufacturer’s data sheet for your specific compressor model.

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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.