The MK-1 is a compact switching module developed by RUBETEK RUS LLC for use in addressable fire alarm systems. Its primary function is to monitor communication lines running from audible and visual fire alarm notification devices that are connected to the outputs of addressable fire alarm control and management panels (ППК) and the KS-02-250 system controller.
RUBETEK is a Russian developer and manufacturer of professional security and building digitalization solutions, with hardware designed in-house and produced at the ZAVOD PRIBOROV plant in Orel, Russia — qualifying as domestically manufactured under Russian Government Decree No. 719.
Despite its minimal footprint of just 20 × 10 × 4 mm and a weight not exceeding 3 g, the MK-1 handles a maximum working voltage of DC 30 V and a load current of up to 1 A. It is rated IP30 for protection against solid particle ingress and operates reliably across a temperature range of −25 °C to +55 °C.
Connection is made via wires with a cross-section of 0.35 mm². The module ships with a full documentation package including a device passport, user manual, and certificate of conformity, ensuring straightforward installation and compliance verification.
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