Mersen disconnect switches are extremely durable and versatile. These heavy-duty switches are designed with the most up-to-date disconnect switch technology available. Designed to suit the IEC standards, the switch gives you a product that makes and breaks power circuits on load. The best-in-class design allows these switches to have a significantly lower kW rating and smaller footprint than the competition. 1000 Volts 1250 Amps IEC series.

Mersen offers a range of DC disconnect switches especially designed for PV applications, in 2 poles and 2x2 poles configurations for double circuit applications. The technology inside the switch and the visible contacts allow a quick, safe, and reliable DC breaking power at all current levels up to 1000VDC. With a symmetric 2-pole design, the product is ready and simple to install independently of the polarity, with very limited power losses, and with a smaller footprint than competition. 1000 Volts 250 Amps 2-2 configuration UL98B (PV) series.

Mersen offers single power or neutral add-on poles for most of our switches. 600 Volts 100 Amps neutral pole.

Mersen offers single power or neutral add-on poles for most of our switches. 600 Volts 400 Amps 4th pole.

Mersen Enclosed Disconnect Switches are designed to meet customer's requirements for compact and durable individual disconnecting means. Both fusible and non-fusible versions are available in a variety of enclosure types. Mersen features NEMA 4X non-metallic enclosures that are extremely durable and provide the ultimate protection for harsh environments and conditions. The enclosed disconnect switch range offers safety, ease of installation, space savings and operational convenience to end-users. 100 amp UL98 NFDS with AUX disconnect with red pistol handle in a NEMA 4X Stainless enclosure.

Mersen’s wide range of handles for our Low Voltage Disconnect switches includes direct-mount, selector-style, and pistol-style in different lengths. Many of these handles have locking capabilities and are available in different colors and IP and NEMA ratings. We also have metal handles and special handles for flange-mounting. Flange mounting adapter for FDS 30A series.

Mersen’s wide range of handles for our Low Voltage Disconnect switches includes direct-mount, selector-style, and pistol-style in different lengths. Many of these handles have locking capabilities and are available in different colors and IP and NEMA ratings. We also have metal handles and special handles for flange-mounting. Flange mounting NEMA 1-3R-12 handle.

Mersen has a wide range of shafts to fit our wide range of handles. Different handles require different shafts. The end of the shaft interlocks with the handle to keep the door from opening when the switch is in the ‘ON’ position. They also come different lengths to conform to enclosures with different depths. size B 325 mm long.

A60X Amp-trap Form 101 Semiconductor Protection fuses are popular for the protection of higher voltage heavy rectifiers such as traction rectifiers. They can carry long sustained overloads common with heavy duty apparatus. 700A through 2000A sizes are of compact, hockey-puck design, able to provide high power protection in a small space. 600 Volts 175 amps with TA indicator.

Mersen Amp-Trap fuses for the protection of transformers and distribution lines deliver overload and short circuit protection. These general purpose current-limiting fuses will melt at current that can be as low as 1.7 times the fuse current ratings up to its maximum interrupting rating. These fuses are designed to withstand the transformer magnetizing inrush current. They are single, double or triple barrels 3 inch diameter (size D) and mount in unique cam-locking clips for superior connections as well as easy installation and replacement. 15500 Volts 300 Amps C3 DNR0 series.

Terminal shrouds are used to prevent the contact of live terminals. They are made for all of our switches, both line and load sides. 1600A 3 poles NFDS series.

Mersen has a wide range of shafts to fit our wide range of handles. Different handles require different shafts. The end of the shaft interlocks with the handle to keep the door from opening when the switch is in the ‘ON’ position. They also come different lengths to conform to enclosures with different depths. selector style 250 mm long.