CHINT OVERLOAD SIZE 12-18

CHINT OVERLOAD SIZE 12-18

CHINT Overload Relay Size 12–18A

A CHINT 12–18A Thermal Overload Relay is a motor protection device used together with a contactor to protect three-phase AC motors from overload, phase loss, and current imbalance. The adjustable current setting of 12–18A allows it to be matched to the motor's full-load current.

Specifications

Brand: CHINT

Type: Thermal Overload Relay

Current Setting Range: 12–18A

Rated Voltage: Up to 690V AC

Frequency: 50/60 Hz

Protection: Overload, phase loss, and phase imbalance

Reset: Manual or automatic (model dependent)

Standard: IEC 60947-4-1


Common uses

Three-phase electric motors

Water pumps

Air compressors

Fans and blowers

Conveyor systems

Industrial machinery

Motor starter panels


How it works

The overload relay is installed below a contactor in a motor starter.

Set the relay to the motor's full-load current (between 12A and 18A).

If the motor draws excessive current for too long or loses a phase, the relay trips and opens the control circuit, causing the contactor to disconnect the motor from the power supply.


Example: If a motor has a rated current of 15A, adjust the overload relay to approximately 15A.