Switch Disconnectors (SDC)
The MK Sentry range offers a choice of switch disconnector rated at either 100A or 63A.
The operating dolly is capable of being locked in either the ON or OFF position. When locked in the ON position it will no longer operate as an isolator. Positive indication of the opening of the contacts is only given when the green stripe can be seen on the dolly.
Material
Manufactured from PA6 (nylon).
Installation
The MK Sentry switch disconnector is designed to accept both cable-in/ cable-out and direct-to busbar connections. The terminals are of a tunnel design and offer a generous cable capacity of 50mm2 for solid stranded conductors and 35mm2 for flexible conductors, on both current ratings.
The terminal screws are touch proof to IP2X, captive and feature combination heads.
Standards & Approvals
MK Sentry switch disconnectors are designed to fully comply with the requirements of BS EN 60947-3. They feature positive contact status indication.
Explore the range
H5560S
Rated Operational Current LE: 63A
Rated Duty: Uninterrupted
Rated Making Capacity LC: 189A rms
Rated Short Time Withstand Current LCW: 2kA rms for 1 sec
Rated Short Circuit Making Capacity LCM: 3kA peak
Rated Conditional Short Circuit Current: 6kA rms prospective
H5500S
Rated Operational Current LE: 100A
Rated Duty: Uninterrupted
Rated Making Capacity LC: 300 rms
Rated Short Time Withstand Current LCW: 2kA rms for 1 sec
Rated Short Circuit Making Capacity LCM: 3kA peak
Rated Conditional Short Circuit Current: 6kA rms prospective