Phase-Sequence Relay Type DRR10
Phase-sequence Relay, automatic change of wrong phase-sequence
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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 VDE V 0898-1-401 (formerly DIN 44081/82)
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
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