Thermal Overload Relay (TOR) Ipoh Perak — Motor Overload Protection

A motor drawing too much current for too long will overheat and burn out — often without any obvious warning sign until it's too late. A Thermal Overload Relay (TOR) is the component that prevents this: it monitors current draw and trips the circuit before heat damage occurs, protecting your motor investment.

TOR is typically paired with a contactor to form a complete motor starter — the contactor switches power, the TOR protects against sustained overload. See Kwong Electric stocks Thermal Overload Relays in Ipoh, Perak, commonly used in pump systems, air-conditioning compressors, conveyor systems and general factory machinery control panels.

Schneider TeSys LRD Thermal Overload Relay

Our primary TOR range is Schneider's TeSys LRD series — designed to pair directly with TeSys-D contactors, forming a reliable, widely-specified motor starter combination used across Malaysian industrial and commercial installations. Available in 240V AC configuration with multiple current adjustment ranges to match different motor sizes.

We also stock Shihlin Electric and LS Electric Thermal Overload Relays — not all listed online yet. If your project specification calls for a specific brand, WhatsApp our team in Ipoh at 016-5261333 and we'll confirm availability and pricing.

Not sure which TOR current range matches your motor and contactor? Share your motor's rated current (found on the motor nameplate) and we'll confirm the correct model.

Frequently Asked Questions — Thermal Overload Relay (TOR)

What does a Thermal Overload Relay do?

A Thermal Overload Relay protects an electric motor from damage caused by sustained overcurrent or overload — such as a jammed pump, blocked fan, or motor working beyond its rated capacity. When current exceeds the set threshold for a period of time, the TOR trips and disconnects power, preventing the motor from overheating and burning out.

What is the difference between a contactor and a thermal overload relay?

A contactor is the switching device that turns motor power on and off — often controlled remotely or by an automation system. A thermal overload relay does not switch power on its own; it monitors current and trips the contactor's circuit when an overload is detected. Together, a contactor and TOR form a complete motor starter providing both control and protection.

How do I choose the right TOR current rating for my motor?

Check your motor's rated full load current (FLA), usually printed on the motor nameplate. The TOR's adjustable current range should be selected so your motor's FLA falls within it — this is typically set slightly above the FLA to allow for normal starting current while still tripping on genuine overload conditions. WhatsApp us with your motor's nameplate details and we'll confirm the correct TOR model.

What equipment commonly uses a Thermal Overload Relay?

TOR is used wherever a motor needs overload protection — common applications include water pumps, air-conditioning compressors, conveyor systems, exhaust and ventilation fan motors, and general factory machinery control panels.

Do you stock other TOR brands besides Schneider?

Yes. Alongside Schneider TeSys LRD, we also stock Shihlin Electric and LS Electric Thermal Overload Relays — some models are not listed online yet. WhatsApp us with the brand or model your project specifies and we'll confirm stock and pricing.

Where can I buy Thermal Overload Relay in Ipoh?

See Kwong Electric at 177, Jalan Pasir Puteh, Taman Hoover, 31650 Ipoh stocks Thermal Overload Relays — available for walk-in purchase, contractor bulk supply, or online order with delivery across Perak. Open Monday to Saturday, 8:30am to 5:00pm.