Overview
The Meltric DS 30A plug 49B6 combines the functionality of a pin-and-sleeve connector with an integrated disconnect switch in a single reliable device. Meltric DSN and DS Series Switch-Rated plugs and receptacles use DECONTACTOR® technology, providing spring-loaded silver-nickel butt contacts, push button disconnection, enclosed arc chambers, and dead-front construction with a safety shutter for user safety and code compliance.
Key Features
- UL 2682 listed for Switch-Rated Plugs and Receptacles with more severe testing than standard pin-and-sleeve or twist-lock devices.
- Dead-front Safety Shutter prevents access to live parts.
- Spring-loaded silver-nickel butt contacts maintain high conductivity for thousands of operations, even in harsh conditions.
- OFF Button provides push button circuit disconnection.
- Spring Assisted Screw Terminals with patented design ensure “Tighten and Forget” confidence.
- Metal or Fiberglass reinforced thermoplastic polyamide material offers impact and corrosion resistance with solid silver-nickel contact surfaces providing superior conductivity and durability.
Technical Specifications
The DS 30A series is rated for motor circuit and branch circuit disconnect switching across a wide range of industrial configurations. Key operational parameters include high amperage capacity, voltage compatibility up to 600 VAC, and sealed construction for harsh environments.
Typical Applications
- Motor circuit disconnect switches for industrial machinery
- Branch circuit disconnect switching in manufacturing facilities
- Temporary power distribution on job sites
- Equipment control and safety disconnection
- HVAC and process equipment control
Compatibility & Replacements
Compatible With
- Meltric DSN30 and DS30 series receptacles rated for 30A, TYPE 4X/3R, 480 VAC, 10–15 hp motor service.
- UL 1682 and C22.2 No. 182.1 certified electrical installations
- Systems requiring UL 2682 switch-rated disconnect certification
- Industrial control panels and temporary power circuits
Replaces / Drop-In Replacement For
- Other Meltric DS 30A plugs with identical 49B6 UL listing
- Verify compatibility with your system integrator or Meltric customer service (800-433-7642) before ordering, as plug variants depend on phase configuration and contact arrangement.
Works With
- Meltric DSN and DS series receptacles
- UL and CSA rated devices for motor circuit and branch circuit disconnect switching up to 75 hp and 150 A.
- Systems rated for 50–400 Hz operation and -40°F to 140°F ambient temperatures
