MADE IN KOREA · SINCE 2000
Power comes in.

The motor starts turning.

It counts the current.

Three phase or single phase, it never stops counting.

It has passed your setting.

It still does not cut. This could be inrush current.

Your set time

Stay over it this long and it cuts.
You set the time yourself.

OVER-CURRENT PROTECTION RELAY

It cuts before the motor burns

It does not break the current itself. It drops the magnetic contactor. That is a trip.

Find my model All specifications
MADE IN KOREA · SINCE 2000

It cuts before
the motor burns

TANGENT KOREA over-current protection relays. They read the current and drop the magnetic contactor once your set time elapses.

Find my model All specifications
MODEL FINDER

Pick your conditions, get the model

30 A
Range 1.5~30 A
Must protect
Connection
Control voltage

Drag the dial or use the arrow keys.

Matching models: 0
PROTECTION

Over-current is the day job

WHERE IT SITS

It wires into the breaker

Power arrives from the main breaker (MCCB) and the magnetic contactor (MC) runs the motor. The OPR reads the current going to the motor.

Even when it catches a fault, the OPR never breaks the current itself. It signals the MC and drops it. So when the MC rating changes, you keep the same OPR.

It is not a replacement for the breaker. It wires into the breaker to protect the motor.

MCCB Main breaker MC Magnetic contactor OPR reads the current Trip signal M Motor
SPECIFICATIONS

Full specifications

Current setting is a code. 30 means a 1.5~30 A range; check exact ranges on the dial above. Current setting ±10 %, control voltage ±10 %, 50/60 Hz. 2CT is standard, 3CT is a separate item.
ModelFormerConnectionMain function Current (A)Control (V)Time (S) Files

Scroll the table sideways for the rest.

Characteristic DefiniteReset Manual / AutomaticMounting Screw or DIN rail 35 mm Operating temp -30~60 ℃Current setting ±10 %Control voltage ±10 % 50/60 Hz Ground fault ZCT 200 : 1.5 mA
Full catalogue (PDF, 0.9 MB) Dimensions (PDF, 0.3 MB) Dimensions CAD (DWG, 0.3 MB)
Made In KOREA
THE UNIT

Set it with the dials

TANGENT KOREA OPR faceplate with D-TIME, LOAD and O-TIME dials, indicator lamps, TEST and RESET buttons.
LOAD (A)Rated current. Set it to the motor nameplate current. Past this, sensing begins.
O-TIME (S)If over-current keeps coming for this long, it trips.
D-TIME (S)Start delay. The window that ignores the surge as the motor spins up.
TEST / RESETHold to verify operation for the set time; press to reset.

Three lamps tell you the state

GreenRunning. All normal.
OrangeDetected. Past your setting.
RedTrip. The MC has been dropped.
CONTACT

Get in touch

Tell us about your equipment or the model you have been using and we will find the right one. Single units are welcome.

Phone
+82-32-678-6969
+82-32-678-6980
Fax
+82-32-678-1601 Naver Smart Store
Email
hijym@naver.com Send email
Address
44-5, Jomaru-ro 385beon-gil,
Bucheon-si, Gyeonggi-do, Korea View map