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D3 DMPR1

Micro controller based

Sensing current

Protecting against Phase Failure, Unbalance, Phase sequence, overloading, Over current/Short circuit, locked rotor,

Auto/Manual resetting

Adjustable trip settings for UC/OC, O/L, Locked rotor & earth fault

Start-up delay adjustable

2x1CO output relays and last ten faults logging

Technical Data

D3 DMPR1 - Electrical Connection Diagram

Supply Voltage

System Supply 380 - 440 V AC ± 20%, 45 - 55 Hz.
Auxiliary Supply 90 - 270 V AC / DC, 415 V AC

Internal CT For D3 DMPR1

Internal CT For D3 DMPR15 Amp or 20 Amp. or 50 Amp

Output Contacts

Output Contacts2 CO

Trip Setting

Parameters	Range	Resolution	Fact setting	Trip delay Range	Factory setting	By Pass Facility	Reset type
Ext. CT	50 - 600	5 Amp	100 Amp	NA	NA	NA	NA
Set current (FLC)	30 to 100 % of FLA	1 Amp	5 Amp	NA	NA	NA	NA
Over Load	Above 110 % of Set Value	NA	NA	IDMT class 2,5,10,15,20, 30 sec	2 sec	Yes	Auto/ Manual
Start up delay	0 - 60 sec	1 sec	10 sec	NA	NA	NA	NA
Under Current	30 - 90%	5%	50%	1- 60 sec	5 sec	Yes	Auto/ Manual
Over Current	110 - 350%	5%	200%	1 -10 sec	2 sec	Yes	Auto/ Manual
Current Unbalance	20 – 60 %	5%	50%	4 sec Fixed(+/- 1 sec)	4 sec	Yes	Auto/ Manual
Current Single Phasing	Yes	NA	NA	4 sec Fixed(+/- 1 sec)	4 sec	Yes	Auto/ Manual
Reverse Phase	Yes	NA	NA	Instant ( < 2 sec)	NA	Yes (Password protected)	Auto/ Manual
Stalling	200- 800%	50%	700%	Instant ( < 2 sec)	NA	Yes	Auto/ Manual
Earth Fault	10- 100%	10%	30%	0.5-10 sec	0.5 sec	Yes	Auto/ Manual
Short Circuit	600 - 999%	50%	800%	Instant(< 2sec)	NA	Yes	Auto/ Manual

Fault Memory

Fault MemoryLast 10 faults

Resetting Mode

Reset Auto / Manual

Display

Display8 X 2 AN LCD

Weight

Weight 400 + 150 GMS (Approx)

Dimensions (mm)

Overall : D3 encl 71 (H) x 100 (L) x 111 (D)
Overall (H x L x D)48 (H) x 96 (L) x 55 (D)
Mounting (L x W)35 mm DIN Rail