Why Choose the Mersen M200D30S Fuse Switch Disconnector?
The Mersen M200D30S is a heavy-duty 200 A three-pole fuse switch disconnector designed to provide reliable switching, electrical isolation and fuse protection within low-voltage power distribution systems. Manufactured by Mersen, this model is engineered for use with NH Size 0 fuse links and is suitable for demanding industrial switchboards, control panels and machinery installations.
Featuring a 3+0 pole configuration and a right-hand side-operated mechanism, the M200D30S is particularly suitable for panel layouts where the operating control must be positioned at the side of the assembly. All three phase conductors are switched simultaneously, providing a clearly defined means of isolating downstream equipment during inspection, servicing or maintenance.
With a rated current of 200 A and suitability for low-voltage systems operating at up to 690 V AC, the M200D30S can be used to protect feeders, machinery supplies and other substantial three-phase loads. When fitted with correctly selected NH fuse links, it helps protect cables and electrical equipment against overload and short-circuit conditions.
Key Advantages
- Combines load switching, circuit isolation and fuse protection in one device.
- 200 A rated current for industrial power distribution applications.
- Designed for standard NH Size 0 fuse links.
- Three-pole 3+0 configuration for three-phase electrical systems.
- Right-hand side operation supports flexible switchboard layouts.
- Suitable for circuits operating at up to 690 V AC.
Key Features
- Mersen fuse switch disconnector.
- 200 A nominal current rating.
- NH Size 0 fuse-link compatibility.
- Three switched poles in a 3+0 arrangement.
- Right-hand side-operated switching mechanism.
- Load-break switching and electrical isolation capability.
- Replaceable fuse links allow protection to be matched to the circuit.
- Robust design for industrial panel and switchboard installation.
Reliable Switching and Fuse Protection
Fuse switch disconnectors combine a mechanical switching device with replaceable fuse links, providing an effective solution for circuit control and overcurrent protection. The Mersen M200D30S allows a three-phase circuit to be manually switched and isolated while the installed NH fuse links protect conductors and downstream equipment against excessive current.
The right-hand side-operated mechanism makes this model suitable for customised switchboard and enclosure arrangements. Fuse links should be selected according to the load characteristics, conductor size, prospective fault current and required protection class of the installation.
Typical Applications
- Industrial low-voltage switchboards.
- Power distribution panels.
- Motor control centres.
- Machinery and production equipment.
- Incoming and outgoing feeder protection.
- OEM electrical control assemblies.
