ABB change-over and transfer switches OTC 
Operation
Installation instruction
Mounting positions
Label
Connections
OZX
OTZC
OTZR
OA
OMZB
OTS
OTS
OTV
OTV
Clearances per UL98
Current Height Width DepthOT200U_C 200 A 406 mm/16 in 305 mm/12 in 203 mm/8 inOT400U_C 400 A 610 mm/24 in 356 mm/14 in 254 mm/10 inOT600U_C 600 A 610 mm/24 in 700 mm/28 in 400 mm/16 inOT800-1200U_C 800/940 A 1220 mm/48 in 610 mm/24 in 400 mm/16 in
A B DOT200-1200U_C 0 13 mm/0,5 in 13 mm/0,5 in
OT200U_CCable size Cable sizeAWG C MCM C4-3 100 mm/4 in 250 200 mm/8 in2 100 mm/4 in 300 250 mm/10 in1 100 mm/4 in1/0 125 mm/5 in2/0 150 mm/6 in3/0-4/0 175 mm/7 in
OT400U_CCable size Cable sizeAWG C MCM C2 100 mm/4 in 250 250 mm/8 in1 100 mm/4 in 300 250 mm/10 in1/0 125 mm/5 in 350 300 mm/12 in2/0 150 mm/6 in3/0-4/0 175 mm/7 in
OT600-1200U_CCable size Cable sizeAWG C MCM C2 100 mm/4 in 250 200 mm/8 in1 100 mm/4 in 300 250 mm/10 in1/0 125 mm/5 in 350 300 mm/12 in2/0 150 mm/6 in 400 330 mm/13 in3/0-4/0 175 mm/7 in 500 356 mm/14 in600 381 mm/15 in
OTB
References
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