Page 79 - Changeover switch

ABB TRANSFER AND CHANGE-OVER SWITCHES 79

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Motorized change-over switches

Technical data for OTM16...125_C

Switch size OTM40_ OTM63_ OTM80_ OTM100_ OTM125_
Data according to IEC 60947-3
Rated insulation voltage and rated Pollution V 800 800 800 800 800
operational voltage AC20/DC20 degree 3
Dielectric strength 50 Hz 1min. kV 6 6 6 6 6
Rated impulse withstand voltage kV 8 8 8 8 8
Rated thermal current and rated / ambient 40°C In open air A 40 63 80 115 125
operational current AC20/DC20 / ambient 40°C In enclosure A 40 63 80 115 125 03
..with minimum conductor cross section
/ ambient 60°C In enclosure A 32 50 63 80 100
Cu mm² 10 16 25 35 50
Rated operational current, AC-21A up to 500 V A 40 63 80 100 125
690 V A 40 63 80 100 125
Rated operational current, AC-22A up to 500 V A 40 63 80 100 125
690 V A 40 63 80 100 125
Rated operational current, AC-23A up to 415 V A 40 63 80 80 90
500 V A 40 60 60 60 70
690 V A 40 40 40 40 50
Rated operational current / poles in series, DC-21A up to 48 V A 40/1 63/1 80/1 100/1 125/1
110 V A 40/2 63/2 80/2 100/2 125/2
220 V A 40/4 63/4 80/4 100/4 100/4
Rated operational current / poles in series, DC-22A up to 48 V A 40/1 63/1 80/1 100/1 125/1
110 V A 40/2 63/2 80/2 100/2 125/2
220 V A 40/4 63/4 80/4 80/4 80/4
Rated operational current / poles in series, DC-23A up to 48 V A 40/1 63/1 80/1 100/1 125/1
110 V A 40/2 63/2 80/2 100/2 125/2
220 V A 40/4 63/4 63/4 63/4 63/4
Rated operational power, AC-23A 1) 230 V kW 7.5 15 22 22 22
The kW-ratings are accurate for 3-phase 1500 R.P.M. 415 V kW 18.5 30 37 37 45
standard asychronous motors
500 V kW 22 37 37 37 45
690 V kW 37 37 37 37 45
Rated breaking capacity in category AC-23 up to 415 V A 320 504 640 640 720
500 V A 320 480 480 480 560
690 V A 320 320 320 320 400
Rated conditional short-circuit current I p (r.m.s.) Ip (r.m.s.) 50 kA, 415 V îc (peak) kA 16.5 16.5 16.5 16.5 16.5
and corresponding max. allowed cut-off current î c Max. OFA_ fuse size gG/aM A/A 125/125 125/125 125/125 125/125 125/125
(peak) value. The cut-off current î c refers to values
listed by fuse manufacturers (single phase test Ip (r.m.s.) 18 kA, 690 V îc (peak) kA 11 11 11 11 11
acc. to IEC60269). Max. OFA_ fuse size gG A 125 125 125 125 125
Ip (r.m.s.) 50 kA, 690 V îc (peak) kA 10 10 10 10 10
Max. OFA_ fuse size gG/aM A/A 63/63 63/63 63/63 63/63 63/63
Rated short-time withstand current I cw (r.m.s.) 690 V 1s kA 2.5 2.5 2.5 2.5 2.5
Rated short-time making capacity 2) I cm (peak) 690 V kA 3.6 3.6 3.6 3.6 3.6
Power loss / pole With rated current W 1.6 2.8 3.5 4.0 6.3
Mechanical endurance Number of oper. cycles 3) Cycles 10 000 10 000 10 000 10 000 10 000
Cable size Cu-wire size suitable for mm² 2.5-25/2x2.5-16 10-70 10-70 10-70 10-70
terminal clamps AWG 14-4/2x14-6 8-00 8-00 8-00 8-00
Terminal tightening torque Counter torque required Nm 6 6 6 6 6
Operating torque 3-pole switches Nm 5 5 5 5 5
Weight without accessories 3-pole switch kg 1.37 1.37 1.37 1.37 1.37
4-pole switch kg 1.60 1.60 1.60 1.60 1.60
Data according to IEC 60947-6-1
Class of equipment PC PC PC PC PC
Rated short-time withstand current I cw (r.m.s.) 690 V 0.1s kA 5 5 5 5 5
Conditional short-circuit current I cc (r.m.s.) 415 V kA 50 50 50 50 50
Corresponding fuse rating gG/aM fuse 415 V A 125 125 125 125 125
Rated operational current, AC-31B up to 415 V A 40 63 80 100 125
Rated operational current, AC-32B up to 415 V A 40 63 80 100 125
Rated operational current, AC-33B up to 415 V A 40 63 80 80 80
1) These values are given for guidance and may vary according to the motor manufacturer
2) Short circuit duration > 50ms, without fuse protection
3) Operating cycle: O - I - O - II - O