NPR
- Super Small
- Negative Frequency Circuit Breaker Protection
- R-Phase Operation Indicator / L-Phase Operation Indicator and Separate Output of Relay
- Hard Condition Resistant
- Super Economic in Power Saving

- Voltage System Negative Sequence and Circuit Breaker Protective Relay
- Negative Sequence Protection ? Immediate Operation
- Circuit Breaker Protection ? Immediate Operation
- Separate Indication of each R-Phase (Red LED) or L-Phase (Green LED)
- Green LED for Separate Power Output of the Relay Contact
- Red LED for Separate Power Output of the Relay Contact

Items Set-up Range

Rating Voltage PG NPR-220 AC220V
PG NPR-440 AC380V/440V
Operating Time Normal Red LED for Separate Power Output of the Relay Contact
Circuit Breaker Green LED for Separate Power Output of the Relay Contact
Frequency 50 / 60
Contact Support Type 1-SPDT(1C)
Status Normal Time Element (95 96 Close)
Rated Current AC 250V / 5A 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
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

(1) While only the R.S.T power is on, the red lamp will illuminate to indicate normal conditions, and the green lamp will illuminate for Negative Sequence.
(2) When normal, the red lamp is on and the corresponding relay turns ON.
If it is in negative sequence, the green lamp is on and the corresponding relay is turned ON.
(3) For circuit breaker, green lamp is on and the corresponding relay is turned ON

3. Circuit Breaker Chart