- Super Small
- Preliminary Alarm for Current Shortage
- Heater Disconnection Alarm Protective   Relay
- Break Down Watch Current Shortage Relay
- Alternative Replacement for the
   Existing   Protective Relay

- Protective Relay for Heater
   Disconnection   and  Short Circuit
- Current Leakage Protection and   Protective Relay for Under Current   Break Down Watch     and Alarm
- Alternative Replacement for the   Existing  Protective Relay

- Current Shortage Protection Alarm( Sounds   after the set {TIME})
- Operating Current Identification
- Green LED (MONITOR) indicating Power and   Operation
- Red LED (TRIP) indicating the status and   operation of Current Shortage

Items Set-up Range

Rated Current PG 06 - ES2 - UCR - 220 0.5A ~ 6.5A
PG 30 - ES2 - UCR - 220 3A ~ 30A
PG 60 - ES2 - UCR - 220 5A ~ 60A
PG 120 - ES2 - UCR - 220 10A ~ 120A
Time Set-up Operating Time O-TIME 0.2sec ~ 30sec
Recover Manual(Immediate)/
Electrical(Timely) Recovery
Operating Time Spec Fixed Time
Error Tolerance Current 15%
Time 15%
Operating Power Voltage 2-Phase AC 90V ~ 260V
Frequency 50 / 60
Contact Support Type 1-SPDT(1C)
Status Normal Time Element (95 96 Close)
Rated Current AC 250V / 3A Load Resistant
Power Saving Resistance between the outer
port and the circuit
Over 50 for DC 500V Megger
Internal Voltage between the outer
port and the circuit
2.0kv normal frequency for 1 min
between contact points 1.0kv normal frequency for 1 min
between circuits 2.0kv normal frequency for 1 min
Operation Environment Temperature Not in Use -30 ~80
When Operating -20 ~65
Humidity 30~85% RH with no dew condensation
Voltage and Rated Current of Terminal Over AC 250V 5A
Power Consumption Below 0.5W
Outer Material 35mm DIN-Rail / Panel


1. Check List Before Use

Please make sure that the product specifications are the same as ordered.
Check to ensure that no damage has occurred during delivery, and that there are no defects or missing items.

2. Operation Time Set-up

Current Shortage Delay Time: it notifies in advance that the load temperature has gone down when the current flow is less than the set current and the heater is disconnected.
Precise set-up is required, since it operates after the set TIME is passed. The operating time is as marked on the scale of the control knob.

Under Current Operation Time: measured by timing the period from when the dimly illuminated red lamp (O.L) brightens.

(1) Consider the operation of MC when setting up.
(2) Operation Time Set-up for ES2-UCR TYPE: controllable in a range of 0~30 sec.

(3) Since the time is fixed, for current shortage or leakage operation, it will be tripped after the set TIME has been exceeded, from the moment when the red LED is illuminated.

3. Rated Current Set-up

(1) Turn the Current Control Knob to the Maximum setting and start the Heater.
(2) While operating, slowly turn the knob counter-clock wise. The point at which the over current indicator red light (O.L) turns off is the point of actual load current (100%).? Turn the knob slightly clockwise, to set current to 130~140% of the actual current.

4. To Confirm Operating

(1) When current is leaked, the yellow and red LEDs are illuminated, and after the set TIME has been passed, the power output is OFF.
(2) While only the power is on, if the TEST button is pressed, the under current indicator lamp (U.L) will illuminate dimply. After the set TIME is passed, the red U.L will be illuminated brightly, and the power lamp will turn off as it trips.
(3) When it is tripped, press the RESET button to recover the initial state. The under current indicator lamp will be turned off, and power lamp will be turned back on.

5. Circuit Breaker Chart