Becomes a zfixedz quality residual current/power switch combination through assembly with a high-quality miniature circuit-breakers of type PLHT, for fitting to screwable) fault-current unit for 40 or 62 A (2 pole and 4 pole), great flexibility and ease of installation due to variable wiring, free selection of main supply, incl. auxiliary contact 1 N/O, as standard in all PBHT versions, large variety of variations provided by a variety of rated operational currents and characteristics of the attachable PLHT miniature circuit-breaker, for commercial and industrial applications, for retroactive attachment to 2-, 3-, 3+N-, and 4-pole PLHT miniature circuit-breakers threaded connection on PLHT switch can be loosened at any time, i.e. the Installation can be adjusted to new eventualities with no problem at any time in case of changes to the system
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