Page 81 - Changeover switch

ABB TRANSFER AND CHANGE-OVER SWITCHES 81

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Motorized change-over switches

Technical data for OTM1000...3200 _C

Switch size OT_1000_ OT_1250_ OT_1600_ OT_2000_ OT_2500_ OT_3200_
Data according to IEC 60947-3
Rated insulation voltage and rated Pollution degree 3 2) V 1 000 1 000 1 000 1 000 1 000 1 000
operational voltage AC20/DC20 1)
Dielectric strength 50 Hz 1min. kV 10 10 10 10 10 10
Rated impulse withstand voltage 3) kV 12 12 12 12 12 12
Rated thermal current and rated / ambient 40°C In open air A 1 000 1 250 1 600 2 000 2 500 3 200 03
operational current AC20/DC20 / ambient 40°C In enclosure A
..with minimum conductor
cross section Cu mm² 2x300 2x400 2x500 3x500 4x500 4x1 000
Rated operational current, AC-21A up to 500 V A 1 000 1 250 1 600 2 000 5) 2 500 5) 3 200 5)
690 V A 1 000 1 250 1 600
Rated operational current, AC-22A up to 500 V A 1 000 1 250 1 600
690 V A 1 000 1 250 1 600
Rated operational current, AC-23A up to 500 V A 1 000 1 250 1 250
690 V A 1 000 1 250 1 250
Rated operational power, AC-23A 1) 230 V kW 315 400 400
The kW-ratings are accurate for 415 V kW 560 710 710
3-phase 1500 R.P.M. standard
asychronous motors 500 V kW 710 900 900
690 V kW 1 000 1 200 1 200
Rated breaking capacity up to 415 V A 10 000 10 000 10 000
in category AC-23 500 V A 10 000 10 000 10 000
690 V A 10 000 10 000 10 000
Rated conditional short-circuit I p (r.m.s.) 80 kA, 415 V îc (peak) kA 100 100 100
current I p (r.m.s.) and cut-off Max. OFA_ fuse size gG/aM A/A 1 250/1 250 1 250/1 250 1 250/1 250
current î c (peak) value. The cut-off
current î c refers to values listed by I p (r.m.s.) 100 kA, 500 V îc (peak) kA 106 106 106
fuse manufacturers (single phase Max. OFA_ fuse size gG/aM A 1 250/1 250 1 250/1 250 1 250/1 250
test acc. to IEC60269). I p (r.m.s.) 80 kA, 690 V îc (peak) kA
Max. OFA_ fuse size gG/aM A
Rated short-time withstand current I cw (r.m.s.) 690 V 0.15s kA 50 50 50 50 50
690 V 0.25s kA 50 50 50 50 50
690 V 1s kA 50 50 50 55 55 65
Rated short-time making capacity 2) I cm (peak) 3) 690 V kA 92 92 92 110 110 143
Power loss / pole With rated current W 19 29 48 55 85 95
Mechanical endurance Number of oper. cycles 4) Cycles 3 000 3 000 3 000 2 000 2 000 2 000
Terminal bolt size Metric thread diameter mm M12x60 M12x60 M12x60 M12x60 M12x60 M12x100
x length
Terminal tightening torque Counter torque required Nm 50-75 50-75 50-75 50-75 50-75 50-75
Operating torque 3-pole change-over Nm 78 78 78 78 78 80
switches
Weight without accessories 3-pole switch kg 42 42 44 56 56 83
4-pole switch kg 50 50 52 70 70 101
Data according to IEC 60947-6-1
Class of equipment PC PC PC
Rated short-time withstand current I cw (r.m.s.) 690 V 0.1s kA 50 50 50
Rated operational current, AC-31B up to 415 V A 1 000 1 250 1 600
Rated operational current, AC-33B up to 415 V A 1 000 1 000 1 000
1) These values are given for guidance and may vary acc. to the motor manufacturer
2) Short circuit duration > 50ms, without fuse protection
3) Max. distance from switch frame to nearest busbar / cable support 150 mm
4) Operating cycle: O - I - O - II - O
5) Category AC-21B, up to 415V