Specifications

Product Type Automatic Transfer Switch	Brand ABB	Series OTM125F
Application Network - Network, Network - Genset

Max. Rated Operation AC Voltage (Ue) 380-415 V AC	Position of Line Terminals Top in - Bottom out	Rated Impulse Withstand Voltage (Uimp) 8 kV
Rated Insulation Voltage (Ui) 800 V	Rated Operation Power at AC-23, 400 V 45 kW (380 ... 415 V)	Rated Operation Power at AC-31b (Ie) 125 A
Rated Operation Power at AC-32b (Ie) 125 A	Rated Operation Power at AC-33b (Ie) 80 A	Rated Operational Current AC21-A (Ie) 125 A
Rated Operational Current AC22-A (Ie) 125 A	Rated Operational Current AC23-A (Ie) 90 A	Rated Short Time Withstand Current (Icw) 2.5 kA (1 s)
Rated Current (In) 125 A	Rated Frequency 50 / 60 Hz	Transition Type Open
No. of Poles 3P

Depth 131 mm	Height 103 mm	Weight 1.85 kg
Width 233 mm

Rated Surrounding Temperature Without Derating 40 °C	Pollution Degree 3	Storage Temperature – 25...+ 70 °C
Operating Temperature – 20...+ 55 °C	IP Rating IP20

Standards and Approvals

IEC 60947-1

ABB OTM125F3C21D400C Automatic Transfer Switch 3-P 125A 380-415V IP20