MPR-341-2 digital Motor protection relay

Measuring Parameter

Monitors Over Load (As per NEMA Curve), Over Current, Under Current, Earth Fault, Lock Current, Current Asymmetry, Phase Sequence, Phase Failure

Electrical Connection

3Ø - 3W

Test / Reset

Manual / Auto reset

No. of LED

2

Voltage Measuring Range

90V - 270V AC / DC

Earth Fault Current Measurement with EFCT

31A to 160A

Current Measuring Range

3A - 80A (via external MPCT)

Power Consumption

4VA (max)

Output Contact

Trip 1 C/O Alarm 1 C/O (Programmable as Trip / Alarm),
Relay Rating NO 5A@250V AC / 28VDCNC 3A@250V AC / 28VDC

Accuracy

Time ±5%+100msec Current 5% of IR(Rated Current),
Reset Auto / Manual

Functional Specifications

Over Load NEMA class : Start with OFF then Curve 5, 10, 15, 20, 30,
Over Current Ranges : Start With OFF then 4A TO 480A of IR (Rated Current) Step Size : 1A

Time Setting

Over Current Trip Time: 0 - 999sec,
Under Current Ranges : Start With OFF then 1A TO 79A,
Of IR (Rated Current) Step Size : 1A,
Under Current Trip Time: 0 - 999sec,
Current Asymmetry Ranges : Start With OFF then 1A TO (Ir-1)A,
Of IR (Rated Current) Step Size : 1A,
Current Asymmetry Trip time: 0 - 999sec,
Locked current / Stall current: (Ir+1)A to 60A(Default :20A),
(Ir+1)A to 240A(Default : 80A),
(Ir+1)A to 480A(Default: 160A) Step Size : 1A,
Locked Current Trip time: 0 - 999sec,
Earth Fault Ranges : Start With OFF then 1A TO 160A,
Step Size : 1%,
Earth Fault Trip time: 0 - 999sec,
Phase Loss trip time: Instantaneous,
Phase Reversal Trip time: Instantaneous

Auto Restart Attempt Time Frame

0 - 999sec for Current related parameter,
0 - 999sec for EFR

Mounting

Panel Mount

Size

96 X 96mm