Secop Diversitech 103N0026 Starter

The Secop 103N0026 PTC Starter is a critical OEM electrical component engineered for high-reliability compressor ignition in light commercial and domestic refrigeration systems. This 115V compressor start relay features a 5 Ohm resistance rating and is the direct technical replacement for the legacy 103N0003 model. As a Positive Temperature Coefficient (PTC) starter, it utilizes a ceramic thermistor to provide a high initial current for motor torque during startup, then quickly increases resistance to drop the start winding out of the circuit once the compressor reaches operational speed. Designed for Secop (formerly Danfoss) fractional horsepower compressors, this unit is commonly found in reach-in coolers, ice machines, and beverage dispensers. Its compact design ensures thermal stability and helps prevent compressor localized overheating during frequent cycling, maintaining system efficiency in demanding field environments.

Technical Specifications and Benefits

• Direct OEM Replacement: Fully replaces the 103N0003 model with identical electrical footprints.
• Optimized Resistance: The 5 Ohm specification is calibrated specifically for 115-volt motor windings.
• Universal Versatility: Compatible with a wide range of DiversiTech and Danfoss compressor platforms.
• Start Winding Protection: Efficiently manages the transition from start to run, reducing electrical stress on the motor.
• Durable Housing: Built to withstand high ambient temperatures within the compressor terminal box.

Common Questions

Is the 103N0026 compatible with 230V systems?
No, this specific model is rated for 115V refrigeration systems only. Installing it on a 230V circuit will lead to immediate component failure.

Can I use this to replace a mechanical relay?
This PTC starter is intended for systems originally designed for PTC technology. You should verify your compressor's wiring diagram to ensure compatibility with Secop 103N0026 specifications.

What are the symptoms of a failing PTC starter?
Common signs include the compressor "clicking" and failing to start, or the compressor cycling on the thermal overload protector due to the start winding remaining energized too long.

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.