ABB Main circuit breaker

ABB Stotz S&J HLS Switch S751-E20L1

Manufacturer: ABB Stotz S&J
Designation: HLS Switch
Type: S751-E20L1
Tripping characteristic: other
Number of poles: 1
Rated current: 20 A
Rated voltage: 230 V
Rated insulation voltage Ui: 690 V
Rated short-circuit breaking capacity: 25 kA
Switching neutral conductor: no
Frequency: 50 Hz
Overvoltage category: 4
Degree of pollution: 3
Rated impulse voltage withstand: 6 kV
Mounting type: busbar
Protection class (IP): IP20
Size (according to DIN 43880): 6

The selective main circuit breakers of the S750 series are certified as voltage-independent selective main line protection switches (SHU) according to DIN VDE 0641-21, designed for layman operation and suitable for the highest overvoltage category. Their application area is diverse: as a disconnection device at the metering point according to the TAB of the network operators or VDE-AR-N 4101, as well as in all low-voltage main distributions for the protection of distribution circuits and as a disconnection device with isolation function. The special selectivity features ensuring high system availability are particularly noteworthy.

The S750 series is designed for direct mounting on a 4- or 5-pole busbar system 40 mm (12 mm x 5/10 mm). Regardless of the rated current of the S750, it can be directly connected to the busbar system via the lower terminal with up to 50 mm² and a maximum of 100 A. Devices of the S750 family include an integrated locking mechanism that allows simultaneous blocking of the 3 poles of a three-phase supply. The integrated locking slider locks in the ON or OFF position and can additionally be secured with a padlock, wire seal, or cable tie. EAN: 4016779698092.