ABB OTM C Series User guide

—
INSTALLATION AND OPERATING INSTRUCTION
Motorized change-over and
transfer switches
OTM_C
— Motorized change-over and transfer switches 34OTM-C rev. G / 1SCC303002M0206

2MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
—
Table of contents
1. Introduction 04
1.1 Use of symbols 04
1.2 Explanations of abbreciations and terms 04
2. Product overview 05
3. Quick start 06
3.1 Operating the motorized change-over
witch electrically: remote control 06
3.1.1 Locking electrical operation 07
3.2 Operating the motorized cahnge over switch
manually; local operation 08
4. Installation 09
4.1 Mounting the motorized change-over switch 09−10
5. Dimension drawings 11−17
6. Connections 18
6.1 Mounting postitions 19
6.2 Labelling 19
7. Connecting 20
8. Operating 21
8.1 Electrical operation 21−22
8.1.1 Impulse control 23
8.1.2 Continuous control 24
8.2 Manual operation by using the handle 25
8.3 Locking 26
8.3.1 Locking the electrical operation 26
8.3.2 Locking the manual operation 26−27
9. Technical data 28−29
10. Accessories 30
10.1 Terminal clamp sets OZXA_OTZB_ 30
10.2 Bridging bars OTZC_, OTZR_ 31−34
10.3 Voltage sensing connectors OMZB_ 35
10.4 Terminal shrouds OTS_ 36−37
10.5 Reversing bars OTZR_ 38
10.6 Voltage sensing connectors OMZB_ 39−40
10.7 Auxiliary contacts OA_ 41
10.8 Dual power sourse ODPS_ 42
10.9 Handle and spare fuse storage OTVS_ 43
11. Clearances per UL 1008 44
11.1 Phase barriers OTB_ 45−46

3
MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
—
Operation
OTM_C Operation
0 I 0 0II
Switch 
Close
Open
Close
Open
Switch 
Switch 
Switch 
Operation
I II I
Close
Open
Close
Open
ON
OFF
ON
ON
ON
ON
ON
ON
OFF
OTM_CF
Switch 
Switch Close
Open
Close
Open
0 I 0 0II
Operation
OTM_CL

4MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
—
1. Introduction
This manual describes the installation and the basic operation of the motorized change-over and trans-
fer switches, types OTM_C. The instructive part is followed by a section on available accessories.
—
1.1 Use of symbols
OTM_C: Motorized change-over switch, the type name
OME_: Motor operator, the type name
OT_C: Change-over switch, the type name
OZXB_ and OZXA_: Terminal clamp sets, the type name, accessories
OTZC_: Bridging bars, the type name, accessories
OTS_: Terminal shrouds, the type name, accessories
OA_: Auxiliary contacts, the type name, accessories
ODPS_: Dual power source, the type name, accessories
Caution: provides important information or warns about a situation that may have a
detrimental effect on equipment.
General warning: warns about a situation where something other than electrical
equipment may cause physical injury to a person or damage to equipment.
Hazardous voltage: warns about a situation where a hazardous voltage may cause physical
injury to a person or damage to equipment.
Information: provides important information about the equipment.
—
1.2 Explanations of abbreviations and terms

5
MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
—
2. Product overview
Motorized change-over switches (type OTM_C) are suitable for remote control. You can operate the
motorized change-over switches either electrically by using the motor operator or manually by using
the handle. The operation, either electrical or manual, can be chosen by the selector switch “Motor/
Manual” on the motor operator. Motorized change-over switches consist of the change-over switch and
the motor operator.
Figure 2.1 Motorized change-over switch (type OTM_C)
1Change-over switch
2Motor operator
3Switch panel, the operating mechanism
4Handle for manual operation, double grip handle in sizes OTM1000-3200_C
5Motor/Manual selection
6Terminals for motor operator voltage supply
7Terminals for push-buttons
8Fuse (F1) of motor operator
9Locking latch for releasing the handle and locking electrical operation
10 Locking clip for locking manual operation
11 Terminals for locking state information
12 Place for auxiliary contacts
II
M
M
Man.
Man.
M
M
Man.
Man.
A04120
864
9
710
5
3
1
12
11
2
I
4
10

6MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
—
3. Quick start
This is a quick guide only meant for those who need a reminder of how to operate the unit.
For more detailed instructions, see chapter 6.
—
3.1 Operating the motorized change-over switch electrically; remote control
To operate the motorized change-over switch electrically:
1. Remove the handle from the switch panel. You can remove the handle in all positions (I, 0, II).
2. Turn the Motor/Manual selector to the Motor (M) position to enable electrical operation.
II
I
M
M
Man.
Man.
M
M
Man.
Man.
A04122
M
M
Man.
Man.
II
I
M
M
Man.
Man.
M
M
Man.
Man.
Figure 3.1 Operating the motorized change-over switch electrically; remote control

7
MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
3.1.1 Locking electrical operation
To disable electrical operation, lock the locking latch with a padlock. After the locking latch
has been locked, the motorized change-over switch cannot be operated electrically. You
can lock electrical operation in all positions (I, 0, II).
Figure 3.2 Locking electrical operation
A04136
II
I
M
M
Man.
Man.
M
M
Man.
Man.
1
2
∅5...6 mm

8MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
To disable the manual (and at the same time also electrical) operation, lift up the locking clip to posi-
tion 0 and attach the padlock to the handle.
Figure 3.4 Locking the manual operation
—
3.2 Operating the motorized change-over switch manually; local operation
To operate the motorized change-over switch manually:
1. Turn the Motor/Manual selector to the Manual (Man.) position to enable manual operation and to
prevent electrical operation.
2. Attach the handle to the switch panel. You can attach the handle in all positions (I, 0, II).
Figure 3.3 Operating the motorized change-over switch manually
II
I
M
M
Man.
Man.
A04123
M
M
Man.
Man.
CLICK !
2
1
II
I
M
M
Man.
Man.
M
M
Man.
Man.
A04137

9
MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
—
4. Installation
—
4.1 Mounting the motorized change-over switch
Figure 4.1 An example of using protection against direct contact
Use protection against direct contact.
Caution
II
M
M
Man.
Man.
M
M
Man.
Man.
OMD
A04126
I

10 MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
Figure 4.2 Motorized change-over switches, drilling hole distances / screw-mounting, [mm/in]
II
M
M
Man.
Man.
M
M
Man.
Man.
A2
A1
A04127
A1



A2 



U3 U4
OTM600_C_M
E4
E3
OTM630-800_C_M
A1




A2 



U3 U4
OTM400_C_M
E4E3
OTM315-400_C_M
A1




A2 



E3 E4
OTM160-250_WC_M
E4
E3
OTM160-250_C_M




U3 U4
OTM200_C_M
I
A1




A2
E4
E3
OTM2000-2500_C_M
A1



A2 



E3 E4
OTM1600_WC_M
E4
E3
OTM1000-1250_C_M




U3 U4
OTM800-1200_C_M
OTM600-800E_C_
OTM160-250_C_
OTM315_400_C_
M6
M5
OTM800-1200U_C_
OTM1000-2500_C_
M10

A1



A2
E4
E3
OTM3200-4000_C_M
OTM3200_C_

11
MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
Figure 5.1 OTM160-250E_C_M
Figure 5.2 OTM160-250E_WC_M
mm
mm
—
5. Dimension drawings
OTM160-250E_C_M, OTM160-250E_WC_M
M00111
9,0
134,5
127
A2
20
65
A1
130
162 A
B
25
122
130
150
87,5
3
23
160
48,5 72
25
37
20
83
65
E3 E4
14
100
E2
35
116
223
238
35
116
258
273
35
116
293
308
A
A1
A2
B
OTM160-250_C_M
9,0
134,5
127
65
A2
20
A1
130
A
B
25
170
122 150
130
87,5
3
23
160
25
83
65
E3 E4
14
M00115
37
20
48,5 72
100
170
E2
43
116
239
254
43
116
282
297
43
116
325
340
66
A
A1
A2
B
OTM160-250_WC_M

12 MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
M00113
146 95
A2
25
A1
156
A
B
E3 E4
11
160
150
31,25
185,25
456
25 87
192 43
32,5
20,5
126
95
17
120
185
E2
44
142
261
280
44
142
305
323
44
142
349
367
137,25
81
A
A1
A2
B
OTM315-400_C_M
9,0
0.35
134,5
5.30
127
5.00
65
2.56
A2
20
0.79
A1
130
5.12
A
B
25
0.98
170
6.69
122
4.80 150
5.91
130
5.12
87,5
3.44
23
0.91 3
0.12
160
6.30
25
0.98
83/35,5
3.27/1.40
65
2.56
U3 U4
14
0.55
M00112
37
1.46
20
0.79
48,5
19.09
72
2.83
100
3.94
170
6.69
U2
43/1.69
116/4.57
239/9.40
254/10
43/1.69
116/4.57
282/11.10
297/11.69
43/1.69
116/4.57
325/12.80
340/13.39
66
2.6
A
A1
A2
B
OTM200_C_M
Figure 5.3 OTM200U_C_M
Figure 5.4 OTM315-400E_C_M
mm
in
mm
—
Dimension drawings
OTM200U_C_M, OTM315-400E_C_M

13
MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
M00114
137,25
5.40
A2
95
3.74
25
0.98
A1
156
6.14
120
4.72
A
B
U3 U4
11
0.43
220
8.66
160
6.30
150
5.91
31,25
1.23
195,25
7.69
4
0.16
56
2.20
25/
0.98 87
3.43
192
7.56
43
1.69
20,5
0.81
32,5
1.28
126 / 51,5
4.96 / 2.03
95
3.74
17
0.67
185
7.28
U2
54/2.13
142/5.59
281/11.06
299/11.77
54/2.13
142/5.59
335/13.19
353/13.90
54/2.13
142/5.59
389/15.31
407/16.02
146
5.75
81
3.19
A
A1
A2
B
OTM400_C_M
M00116
137,25
A2
95
25
A1
156 120
A
B
OTM 315-400_WC_M
E3 E4
54 54
142 142
334,5
353 407
11
220
160
150
31,25
195,25
456
87
192 43
20,5
32,5
126/51,5
95
17
185
388,5
A
A1
A2
B
Figure 5.6 OTM400U_C_M
Figure 5.5 OTM315-400E_WC_M
mm
in
mm
—
Dimension drawings
OTM315-400E_WC_M, OTM400U_C_M

14 MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
200
A1
160
6.30
147,5
A2
19 8
210
250
212 ,5 A
B
47,5
39
1.54
13 ,5
45
132 ,6 / 5.22
5
64,1
400
43
256
5.81
0.53
7.87
8.37 1 .87
7.80
8.27
9.84
509
20.04
15 .75
2.52
0.20
1.77
1.69
10.08
14 5
17
0.67
5.71
65/2.56 65/2.56 65/2.56
180/7.09 180/7.09 180/7.09
325/12.8 390/15.35 455/17.91
346/13.62
411/16.18 476/18.74
M00139
158
6.22
20,5
0.8
A
A1
A2
B
U2 U3 U4
OTM600_C_M
145
17
200 160
A1
147,5
A2
198
210
250
212,5 A
B
47,5
39
45
132,6
110,5
5
64,1
256
E2 E3 E4
65 65 65
180 180 180
325 390 455
346 411 476
138,6
61,5
13,5
M00140
158
43
20,5
A
A1
A2
B
OTM630-800E_C_M
Figure 5.8 OTM600U_C_M
mm
mm
—
Dimension drawings
OTM630-800E_C_M, OTM600U_C_M
Figure 5.7 OTM630-800E_C_M

15
MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
M
Man.
A2
186
171
200
Ø13,5 50
338
326
258
246 372
253
B
A63
260
A1
206
400
15
19
74,5 15
136
83
296,5 75
OTM1600_C_M
A
A1
A2
B
E2
80
230
396,6
426,5
E3
80
230
476,5
506,5
E4
80
230
556,5
586,5
M00258
167
158,5
127
100
335
M
Man.
13,5 50
A2
200
186
171
260
A1
206
253 A
B
63
306 272
250
74,5 15
136
50
400
15
19
296,5 75
OTM1000-1250_C_M
A
A1
A2
B
E2
80
230
396,5
426,5
E3
80
230
476,5
506,5
E4
80
230
556,5
586,5
167
158,5
M00256
80
127
100
335
mm
Figure 5.9 OTM1000-1200E_C_M
mm
Figure 5.10 OTM1600E_C_M
—
Dimension drawings
OTM1000-1200E_C_M, OTM1600E_C_M

16 MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
M
Man.
A2
186 / 7.33
171 /6.74
200
7.88
260
10.24
A1
206
8.12
253 / 9.97 A
B
63
2.48
13,5
0.53 50
1.97
372
14.65
546
21.51
338
13.32
326
12.84
258
10.16
246
9.69
OTM800-1200_C_M
A
A1
A2
B
U2
80/3.15
230/9.06
396,5/15.62
426,5/16.8
U3
80/3.15
230/9.06
476,5/18.77
506,5/19.96
U4
80/3.15
230/9.06
556,5/21.92
586,5/23.11
M00257
400
15.76
15
0.59
19
0.75
12
2
1
296,5
11.68
75
2.95
1
2
136 / 5.36
74,5
2.93
15
0.59
83
3.27
405
15.96
12
167
6.58
335
13.19
Figure 5.11 OTM800-1200U_C_M
mm
in
—
Dimension drawings
OTM800-1200U_C_M

17
MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
100
Ø 13,5
M
Man.
A2
200
186
171
260
A1
206
B
276 A86
376,4
342,4
330,4
262,4
250,4
OTM2000-2500_C_M
A
A1
A2
B
E2
126
230
488,5
518,5
E3
126
230
614,5
644,5
E4
126
230
740,5
770,5
M00259
296,5
206
335
136
85
74,5
15
167
158,5
400
15
19
75
100
127
mm
Figure 5.12 OTM2000-2500E_C_M
13,5
A2
200
100
186
171
280
A1
206
258 A
B
73
284
296
364
376
410
325
61
4,8
85
63
15
191
Ø
400
15
245
141
156,5
223
429
170,5
100,5 377
424
240
M00432
E2 E3 E4
140
250
521,5
551,5
140
250
661,5
691,5
140
250
801,5
831,5
A
A1
A2
B
OTM3200_C_M
mm
Figure 5.13 OTM3200_C_M
—
Dimension drawings
OTM2000-2500E_C_M , OTM3200_C_M

18 MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
—
6. Connections
II
I
2
A06272
1
II
I
10 mm
10 mm
50 mm
50 mm
Figure 6.1 Mounting the connections to the motorized change-over switches OTM3200_C_M

19
MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
—
6.1 Mounting positions
The recommended mounting positions for motorized change-over switches are horizontal, wall
mounted or table mounted.
Figure 6.3 Labelling of the motorized change-over switches
Figure 6.2 Mounting positions
A06103
—
6.2 Labelling
II
M
M
Man.
Man.
M
M
Man.
Man.
I
A04128
12
Information
Do not install the motorized change-over switches in any other position than those
described above.

20 MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C
—
7. Connecting
Only an authorised electrician may perform the electrical installation and maintenance of
motorized change-over switches. Do not attempt any installation or maintenance actions
when a motorized change-over switch is connected to the electrical mains. Before starting
work, make sure that the change-over switch is de-energised.
Figure 7.1 Motorized change-over switch terminals
1. Terminal for motor operator voltage supply
2. Control terminal for push buttons or selector switch
3. Terminal for state information of locking
—
7.1 Control circuit
Do not couple power for the control terminal. See the correct terminal for the power supply
in Figure 7.1
The control voltage (output C = 24Vdc) on the control terminal is non-isolated,
see box 2 in Figure 7.1
When relay outputs are used with inductive loads (such as relays, contactors and motors),
they must be protected from voltage spikes using varistors, RC-protectors (AC current) or
DC current diodes (DC current).
Information
Hazardous
voltage
Warning
Warning
II
M
M
Man.
Man.
M
M
Man.
Man.
I
A04129
PE NL
F2
CII I0
A
2
B C
-+
1
11
14 12
23
24
3
LOAD
12
3
LINE I
LINE
II
M
PE N L
F 2
11 14 12 23 24
Do not connect to
any power supply
24 vdc