Meltric Switch-Rated Plugs & Receptacles for Safe & Reliable Switching
Meltric’s Switch-Rated plugs and receptacles combine the safety and functionality of a disconnect switch with the convenience of a plug and receptacle. Their exclusive design allows users to safely make and break connections under full load and provides significant protection in overload and short-circuit conditions. Their dead-front design and enclosed arc chambers ensure that the load is safely disconnected and all live parts are isolated and inaccessible before the plug can be removed. This design guarantees that users are protected from exposure to live parts and potential arc flash at all times while making and breaking connections.
Safety Shutter Eliminates Exposure Hazards
DS and DSN Series Switch-Rated devices have safety shutters that close over the receptacle contacts before the plug can be removed. Users have no exposure to arcing, or direct access to live parts, at any time during or after the removal of the plug. To remove a plug from a receptacle, the plug must be rotated 30° counterclockwise in the OFF position. This rotation of the plug automatically closes and locks the safety shutter, creating an insulating barrier between the plug and receptacle contacts before the plug can be removed. The safety shutter can only be opened by the insertion and rotation of an electrically compatible plug. Twenty-four different keying arrangements ensure that only electrically compatible plugs can be inserted into a receptacle.
Common Areas & Industries Where Switch-Rated Connection is Needed
Industries:
- Steel and Aluminum
- Food and Beverage
- Airport and Aviation
- Ports and Marines
- Railroads
- Shipbuilding
- Data Centres and National Labs
Common Usage:
- Wastewater Treatment
- Power Generation
- Brewing, Distilling, Malting
- Mining and Aggregate
- Automotive and Plastics
- Construction/Heavy Equipment
- Grain, Sugar, and Feed Processing
Exclusive Switch-Rated Safety
Motor & Branch Circuit Switching
Meltric’s Switch-Rated devices are also UL and CSA rated for “motor circuit” and “branch circuit” disconnect switching and are an approved NEC/CSA line-of-sight disconnect switch. Models are available with ratings up to:
- 200 A for Branch Circuit Disconnect Switching
- 100 hp for Motor Circuit Disconnect Switching
Short-Circuit Overload Protection
Meltric’s Switch-Rated plugs and receptacles are designed to provide short-circuit protection far over what is required by the standards. They are rated to successfully close into and withstand short-circuit currents of up to 100 kA when used in circuits protected by RK1 fuses.
Built for Thousands of Operations, in the Harshest Environments
Meltric’s Switch-Rated devices’ silver-nickel, butt-style contacts and patented, spring-assisted terminals have been performance tested for over 6,000 trouble-free operations with highly consistent electrical connections.Their contacts are backed by a best-in-industry, 5-year warranty. Critical hardware is made of stainless steel to protect against the effects of corrosion. Reinforced polyester and aluminum alloy casings are used to provide excellent impact resistance as well as protection against UV radiation and most harsh chemicals found in typical industrial applications.
