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Miniature circuit breaker ABB SH201-C40 Type F 1, 40 A, 12–253 V, 50/60 Hz, IP20
ABB SH201-C40 is a single-pole miniature circuit breaker (Type F) rated at 40 A, with an operating voltage range of 12–253 V and frequency 50/60 Hz. It is intended for overcurrent protection in residential and light-commercial electrical installations and is supplied with IP20 finger-protection. The device is compact and suitable for DIN‑rail mounting.
The miniature circuit breaker provides reliable overcurrent protection for single-phase circuits and supports mixed voltage systems due to its wide input voltage range. Its Type F characteristic offers enhanced selectivity for motor and inductive loads compared with standard types in some installations. The IP20 protection rating and compact design facilitate installation in standard distribution panels and consumer units.
This single-pole breaker is not intended for three-phase power distribution or for circuits that require residual-current protection (RCD/RCBO) unless combined with appropriate devices. It has IP20 protection, so it is not rated for outdoor installations or environments with significant dust or moisture exposure without additional enclosure protection.
Install the ABB SH201-C40 on a standard DIN rail in a distribution board by connecting the line and load conductors to the designated terminals according to wiring diagrams and local electrical codes. Ensure the supply is de-energised before installation. Use appropriate torque settings for terminal screws and verify correct operation by testing under load conditions after energising. Coordinate with upstream and downstream protection devices to maintain selectivity.
Use this breaker for protecting single-phase branch circuits in homes and small commercial installations, and combine it with appropriate upstream protection or RCDs where required by regulations. Regularly inspect the distribution board and ensure terminals remain tight; replace the device if it trips frequently to investigate possible underlying faults.
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