Overload Switches
Shop 12 A, 15 A and 20 A overload switches for compatible 230 V single-phase compressor motors and industrial equipment.
Overload Protection for Compressor Motors
An overload switch helps protect an electric motor from sustained excessive current and overheating and must be matched to the motor full-load current.
The current range includes 12 A, 15 A and 20 A options for compatible 230 V single-phase compressor motor applications.
Repeated tripping should be investigated rather than simply fitting a higher-rated overload.
Shop Overload Switches
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Sale!
Electric Motors and Electrical Spare Parts20 Amp Overload Switch | Suitable for 1.5 KW / 2.2 KW 230 Volt/ Single Phase Motors
Original price was: £40.43.£23.83Current price is: £23.83. exc vat. Add to basket20 Amp Overload Switch | Suitable for 1.5 KW / 2.2 KW 230 Volt/ Single Phase Motors is a replacement overload switch for compatible single-phase compressor motors. Designed to provide motor protection when correctly specified and fitted. Match the amperage, motor rating, voltage and existing control arrangement before ordering or installation.
In StockOriginal price was: £40.43.£23.83Current price is: £23.83. exc vat. -
Sale!
Electric Motors and Electrical Spare Parts15 Amp Overload Switch | Suitable for 1.5 KW / 2.2 KW 230 Volt/ Single Phase Motors
Original price was: £19.57.£11.52Current price is: £11.52. exc vat. Add to basket15 Amp Overload Switch | Suitable for 1.5 KW / 2.2 KW 230 Volt/ Single Phase Motors is a replacement overload switch for compatible single-phase compressor motors. Designed to provide motor protection when correctly specified and fitted. Match the amperage, motor rating, voltage and existing control arrangement before ordering or installation.
In StockOriginal price was: £19.57.£11.52Current price is: £11.52. exc vat. -
Electric Motors and Electrical Spare Parts12 Amp Overload Switch | Suitable for 1.5 KW 230 Volt/ Single Phase Motors
£17.06 exc vat. Add to basket12 amp motor overload switch for compatible 1.5 kW, 230V single-phase compressor motors and motor-control applications. Match the original switch and motor nameplate current before fitting.
In Stock£17.06 exc vat.
Choose the Correct Overload Switch
Use the motor data plate and original control specification when selecting the replacement.
Full-Load Amps
Match the overload to the motor current requirement.
Phase & Voltage
Current products are for compatible 230 V single-phase applications.
Control Arrangement
Check terminals and compatibility with the existing starter/switchgear.
Fault Diagnosis
Investigate why the original overload operated.
Why an Overload May Keep Tripping
Repeated overload operation can be caused by electrical or mechanical faults elsewhere in the compressor.
- Low voltage or excessive voltage drop
- Incorrect overload rating or setting
- Failed start or run capacitor
- Compressor failing to unload before restart
- Tight pump or motor bearing
- Incorrect pulley ratio or belt tension
- Motor winding or connection faults
What an Overload Does — and Does Not Do
An overload responds to sustained excessive motor current to help reduce overheating risk.
- Helps protect motor windings
- Provides resettable protection after a fault is corrected
- Must be correctly matched and set
- Does not replace short-circuit protection, cable sizing or isolation
Frequently Asked Questions
What overload ratings are currently available?
The current range includes 12 A, 15 A and 20 A options.
Can I fit a higher amp overload if mine keeps tripping?
No. Repeated tripping should be diagnosed; the overload should still match the motor requirement.
Can you help identify the correct overload?
Yes. Send the motor data plate, compressor model and existing overload reference.
Need Help Choosing an Overload Switch?
Send us the motor full-load amps, compressor model and existing overload reference and our team can help identify the right option.
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