Motor starters
Overload protection in DOL and star-delta starters.
Singapore's VSD & Soft Starter Specialists
Motor overload protection for the starter — adjustable current setting and phase-failure-sensitive tripping, direct-mounting to Himel HDC3 contactors.
HDR3S · Thermal Overload Relay
Representative image · genuine Himel product supplied
HDR3S · Thermal Overload Relay
The Himel HDR3S thermal overload relay protects motors from the slow-burn faults a breaker won't catch: sustained overcurrent, stalled loads and phase loss. It sits in the starter with the contactor and trips before the motor overheats.
An adjustable current dial sets the trip point to the motor's full-load current, and phase-failure-sensitive tripping guards against single-phasing. It direct-mounts to the HDC3 contactor for a compact, wired-through starter assembly.
Supplied with the Himel HDC3 contactors and the wider control range by Trans-Digi Global, locally stocked.
Ranges are indicative of the series across variants. Confirm the exact rating, frame and options for your motor / application with Jason before ordering.
Overload protection in DOL and star-delta starters.
Protect pump and fan motors from overload.
Motor-circuit protection in MCCs.
Plant-room motor protection.
Send Jason the motor rating, voltage, phase, quantity and application. We'll confirm the exact overload relay, check local stock and get a quotation back to you — same business day.