Control Multiple Circuits and Signals with Multipin Plugs and Receptacles
MELTRIC offers a wide range of multipin plugs and receptacles that provide a convenient and reliable means of connecting multiple circuits and/or control and monitoring signals through a single device.
Each multipin device features MELTRIC spring-loaded, silver-nickel, butt-style contact technology that maximizes durability and performance. Multipin devices are available with as many as 37, or as few as 4 contacts. Products range from 4 A up to 50 A per contact. Some multipin devices include load-making and breaking capabilities or horsepower ratings.
Why Choose MELTRIC Multipin Connectors?
Superior Safety: Featuring advanced safety mechanisms, our multipin connectors protect against electrical hazards, making them ideal for use in demanding environments.
Enhanced Durability: Built to withstand harsh conditions, our multipin connectors are designed for long-lasting performance and minimal maintenance.
User-Friendly Design: Our multipin connectors are easy to install and operate, reducing downtime and increasing productivity.
Join the growing number of industries relying on MELTRIC Multipin Devices for secure, efficient, and reliable connections. Our commitment to quality and innovation makes us the preferred choice for professionals worldwide.
Better contact technology and materials provide high conductivity connections that hold up in harsh conditions. More…
Connect Multiple Circuits with 1 Device
MELTRIC multipin devices allow users to safely and efficiently connect multiple loads as well as control and monitor signals in a single space and cost-efficient device. More…
Minimize Drive-Away Damage
Most MELTRIC Multipin devices are available with a Self-Ejection option that minimizes system damage if trailers drive away from docks without disconnecting. More…
Ensure User Safety
Like all our devices, MELTRIC Multipin products are designed with safety features to ensure users are protected from electrical hazards. More…
Spring-Loaded Butt Contacts Provide Thousands of Consistent and Reliable Connections
MELTRIC Multipin plugs and receptacles use spring-loaded, butt-style contacts like those used on our Switch-Rated products. Their end-to-end mating provides a stable connection. The spring-loading delivers optimal contact pressure, and the integrity of the electrical connection is maintained over thousands of operations.
Spring-loaded butt contacts automatically compensate for manufacturing variations, eliminating contact mating and connection quality problems caused by the dimensional variations of other contact designs.
End-to-end mating eliminates the effects of wear inherent with sliding contacts.
Consistent spring pressure eliminates overheating caused by poor contact force.
The performance and design advantages of spring-loaded butt contacts make them a superior choice for providing consistently safe and reliable connections.
Silver and Silver-Nickel Contacts Provide Superior Conductivity
Most MELTRIC Multipin device contacts have solid silver-nickel contact surfaces to ensure long-term electrical performance. The contacts’ 85% silver and 15% nickel composition combines the durability of nickel with the excellent conducting properties of silver. The receptacle contacts in PN12c and DSN12/24/37c devices with lower current interrupting requirements are silver-plated copper.
The silver and silver-nickel contacts provide significant advantages over the brass materials used on most other types of plugs and receptacles:
Silver and silver-nickel maintain low contact resistance and superior electrical properties even after oxidation and tarnishing.
The silver-nickel material used on all plug contacts withstands arcing very well and only welds at extremely high pressure and temperature and thus allows good current interrupting capabilities.
The hardness of nickel gives the silver-nickel contacts excellent wear resistance.
Silver and silver-nickel both perform well in and withstand wet and corrosive environments.
The combination of silver/silver-nickel contacts with a spring-loaded butt-style design makes MELTRIC Multipin contacts ideal for repetitive making and breaking of connections and for long-term exposure to harsh environments.
Available on All Multipins except the PN7c and PN12c
Most MELTRIC Multipin devices can be disconnected simply by depressing the OFF, or release, button. This automatically ejects the plug to the OFF, or rest, position. The plug can then safely be removed by rotating it 30° counterclockwise and withdrawing it from the receptacle.
Push-button disconnection is provided on the DSN12c, DSN24c, DSN37c, DN9c, DN20c, DS7c and DR7c. Dual-pawl stainless steel cased DS24c and DS37c devices automatically eject, but both pawls must be depressed simultaneously. PN7c and PN12c multipin devices do not have release buttons; the plug must be manually rotated and withdrawn from the receptacle.
Used on PN12c, DSN12c, DSN24c, DSN37c, DS24c and DS37c
MELTRIC Multipin contacts with crimp or solder terminals are designed to be space efficient, easy to work with, and allow termination either by crimping or soldering. The crimping or soldering of the termination is done outside of the device before the contact is inserted, so the installer has ample space and access to the terminals to do the work efficiently.
Once the conductor is terminated, the contact can be inserted into the device. This is done simply by pushing the contact into the back side of the interior insulator until it reaches a positive stop. It is held in place by a retention system but can be removed if required for rewiring by inserting a special tool into the front side of the device and pushing the contact out the backside. A contact can be inserted and removed up to three times.
On traditional plugs and receptacles, the loosening of terminal screws is a common cause of failure. MELTRIC multipin devices with screw terminals have a patented, spring-assisted design that provide more permanent and secure conductor connections.
As the terminal screw is tightened, pressure is generated against the conductor and causes the split-terminal body to expand and elliptically deform the spring ring around the terminal. Since the spring ring wants to return to its original circular shape, it exerts a constant pressure against the terminal and conductor. This keeps the terminal screw securely in place and helps compensate for strand settlement and conductor yield, while also providing superior resistance to the effects of vibration, shock, and thermal cycling.
MELTRIC provides a wide variety of mounting angles, handles, and wall boxes allowing its Multipin devices to be used in wall box receptacle, in-line, direct equipment mounted, cord drop, panel mounted, flexible conduit, and other installation configurations. Adapter plates are also available to mount MELTRIC Multipin devices to existing competitive backboxes. This all makes it easy to locate a plug and play connection wherever it is helpful and convenient.
MELTRIC plugs and receptacles are durable and withstand harsh environments, so repairs may never be necessary, but if they are, replacement parts are reasonably priced and readily available.
The design allows the changeout of casings, individual contacts, full interiors, or other specific parts, avoiding the need and cost of replacing the entire device. PN7c users should note that only devices returned to the factory for rebuild will maintain their UL/CSA certification; devices that are field repaired by users do not.
