Phase-Sequence Relay Type DRR10

Phase-sequence Relay, automatic change of wrong phase-sequence

Phase-Sequence Relay Type DRR10

Part number


Product description

 

Phase-sequence relays DRR10 measure the sequence of the phases when being switched on and switch - if necessary - the rotation of the field by changing 2 phases.

The integrated PTC-monitor protects the motor from overheating.
Applications are especially machines and equipment, that is operated at variable locations e.g. at building sites. Pumps, compressors and vacuum cleaners always run correctly. No
more search for faults or change of wiring necessary.

Overview of Function

  • automatic change of wrong phase-sequence when connected falsely
  • running backward of motors is avoided
  • integrated PTC-protection for motor
  • enable-input for direct switching on/off of the motor with DRR 10
  • max. 3 x 12 A
  • switch-on currents 30 A / max. 4 s / 60 A / max. 1 s
  • higher currents with external contactors
  • integrated protection for relay contacts
  • integrated protection from over-temperature
  • housing for mounting in fuse-boxes or switchgearcabinets, mounting height 55 mm

 

Technical Data

Rated supply voltage Us

.......

3 AC 400 V, 50/60 Hz < 3 VA

 

Tolerance

.......

+10 % ... -20 %

 

Inputs

.......

no potential separation from supply

 

E1, E2

.......

potential-free contact for AC 400 V

 

T1, T2

.......

PTC according to DIN 44081 / 44082

 

Output relays

.......

2 x 2 NO-contacts

 

Switching voltage

.......

max. AC 440 V

 

Thermal current Ith

.......

12 A

 

Switch-on current

.......

30 A max. 4 s / 60 A max. 1 s

 

Rated nominal current Ie (AC 15)

.......

3 A AC 400 V

 

Recommended fuse

.......

gG/gL 16 A

 

Expected contact life mech.

.......

30 x 106 operations

 

Expected contact life electr.

.......

1 x 106 operations at AC 400 V / 3 A
2 x 105 operations at AC 400 V / 6 A cos φ 0,5

 

Test conditions (EN 60255-27)

Rated impulse withstand voltage

.......

4000 V

 

Overvoltage category

.......

III

 

Pollution degree

.......

2

 

Rated insulation voltage Ui

.......

I300 V

 

EMV - immunity

.......

EN 61000-6-2

 

EMV - emission

.......

EN 61000-6-3

 

Rated ambient temperature rangev

.......

E- 20 ... + 55 °C

 

Housing (Design V4)

Mounting height

.......

55 mm

 

Width

.......

4 TE

 

Dimensions (B x H x D)

.......

70 x 90 x 58 mm

 

Line connection 1 wire

.......

each 1 x 4 mm2

 

Stranded wire with wire-end sleeves

.......

each 1 x 2.5 mm2

 

Protection housing

.......

IP 30

 

Protection terminals

.......

IP 20

 

Mounting

.......

Snap mounting on 35 mm standard rail 35 mm according to EN 60715 or with 2 screws M4

 

Weight

.......

app. 230 g