1 pc 4P 63A 3-phase 2-position on/off isolator switch. Model YMD1163B, rated 63A 4p. Includes an aluminum rod and a rotary cam selector switch cabinet for reliable operation. This unit provides dependable electrical isolation and control in appropriate installations. Key benefits - Safe full isolation: disconnects all relevant conductors for maintenance and servicing, reducing risk of accidental energization. - Suitable for 3-phase systems: supports 63A loads with four poles for complete circuit disconnection. - Robust actuation: aluminum rod included to enable durable, smooth operation. - Reliable switching: rotary cam selector switch cabinet ensures stable, repeatable on/off positions. - Simple integration: designed for panel mounting in standard electrical cabinets. Key attributes - Function: on/off isolator switch for isolation and control - Poles and rating: 4-pole, 63A - Phase: 3-phase - Positions: 2-position on/off - Model: YMD1163B - Included: aluminum rod - Construction: suitable for cabinet-mounted isolation Applications and use scenarios - Motor control panels in manufacturing lines for safe startup/shutdown and maintenance - Electrical service panels for machines with 3-phase equipment (pumps, conveyors, presses) - HVAC or processing plant control panels requiring reliable existing isolation during service or fault conditions This description remains faithful to the original specifications and function, presenting clear, practical details for decision making.