This block of contactors, which includes mechanical and electrical counterlocks, is intended for switching 1-3 phase load circuits between the main and backup power sources. Switching is carried out under the control of an external controller of automatic reserve input (AVR) or a controller of automatic control of an electric generator (AMF).
Design features: intended for mounting on a DIN rail in electrical cabinets; has a mechanical counter-blocking module in its composition to protect against switching on both contactors at the same time; each of the contactors is equipped with blocks of additional electrical contacts to protect against switching on both contactors at the same time; silver-plated switching contacts.
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