Technical Data; Installation; Installation Method - ABB OTM C 21D Installation And Operating Instructions Manual

5. Technical data

Automatic transfer switch
Rated operational voltage Ue [V]
Operating voltage range
Measuring accuracy
Operating angle
OFF time
Total transfer time
Electromagnetic compatibility
Ingress Protection Rating
Rated impulse withstand voltage
U
imp
Operating temperature
Transportation and storage
temperature
Altitude

6. Installation

6.1. Installation method

The switch can be installed using screws or a DIN rail.
The fixed installation mode on the base board is as follows:
16
1SCC303015M0201 l ABB Installation and operating instructions, 34OTM_C_21D rev. B
Parameters
220~240 V AC 50~60 Hz
0.7~1.3 Ue
±3%
90° ( O-I, I-O, O-II, II-O)
180° ( I-O-II, II-O-I)
0,6 - 0,7 s
2.5 s
Class A
IP20, front panel
8 kV (6 kV for control circuit, disconnect the power line of the
control circuit before carrying out the dielectric voltage
withstand test)
-25~55 C
o
-40~70 C
o
Max. 2000 m
Table 6. Technical data
M4
Figure 16. Installation of OTM_C_21D, screw.
2
5. Technical data