Industrial RXMVB 2 RK 251 206-AP Control Relay

The RXMVB 2 RK 251 206-AP is a bistable, throw-over relay in ABB's RXMVB family (originating with ASEA and now part of Hitachi Energy's protection and control portfolio) that provides memory-based, latched switching for multiple circuits within a single device, enabling safe, coordinated control in substations and industrial automation. The RK251206-AP variant is specified for a DC 125 V coil and features eight contact elements described as five make and three break contacts, designed to handle switching in protection schemes with robust interrupt capability; the left coil terminals are 122-121, reflecting the RXMVB two-coil pinout used across the series for set/reset operations, ensuring reliable latching behavior even under transient power conditions. Typical applications include transformer protection, interlocking, and general control tasks where a remembered state and high-contact-rupture capacity are required, making this relay a compact, durable choice for control panels, protection relays, and protection circuits in industrial environments.