General
Number of switches	1
Max. rated operation voltage Ue AC	415 V
Rated operating voltage	415 V
Rated permanent current Iu	125 A
Rated permanent current at AC-23, 400 V	125 A
Rated permanent current at AC-21, 400 V	125 A
Rated short-time withstand current lcw	7 kA
Rated operation power at AC-23, 400 V	56 kW
Switching power at 400 V	82 kW
Conditioned rated short-circuit current Iq	50 kA
Number of poles	4
Number of auxiliary contacts as normally closed contact	0
Number of auxiliary contacts as normally open contact	0
Number of auxiliary contacts as change-over contact	0
Device construction	Built-in device fixed built-in technique
Colour control element	Other
Type of control element	Other
Type of electrical connection of main circuit	Screw connection
Degree of protection (IP), front side	IP20
Degree of protection (NEMA)	Other
Depth	245 mm
Height	73.5 mm
Width	332 mm
Version as main switch
Version as maintenance-/service switch
Version as safety switch
Version as emergency stop installation
Version as reversing switch
Motor drive optional
Motor drive integrated
Voltage release optional
Suitable for front mounting 4-hole
Suitable for front mounting centre
Suitable for distribution board installation
Suitable for intermediate mounting
Interlockable

Automatic load changeover switch with switch position indicator 4P 125A 400V. Modular automatic load changeover switch with switch position indicator in accordance with IEC 60947-3 and IEC 60947-6-1 switches between source 1 (e.g. mains voltage) and source 2 (e.g. emergency power supply). In the event of a power failure, an integrated control system takes over the emergency power supply and when the power returns, the device switches back automatically. The DIN rail device with built-in padlock function is self-supplied via the feed. Measurement accuracy: frequency 1%, voltage 1%. Protection class: Class 1. Configuration is carried out using 4 potentiometers and DIP switches on the front of the device. Changeover switches ensure: - Stable positions (I - 0 - II), no impairment due to typical vibrations and shocks - Simple installation with effective ergonomics - Window with position indicator I - 0 - II - Integrated switch shutdown. Note: To accommodate up to 2 auxiliary contact blocks and 1 NOC auxiliary contact (for each position I -0 - II).