
Contact for Pricing
Overview
- Meltric DXA1 Series Inlet/Box
- Durable Metal Construction, Black Finish
- IP66/IP67 Rated for Environmental Protection
- 2-Pole Plus Ground (2P+G) Configuration
- 20 Amp, 250 Volt AC, 60 Hz Rating
- 1/2" NPT Conduit Opening for Easy Wiring

BX4
Sealable and transparent protective covers BX4 and non-removable BX4-CA to protect the devices against accidental contact.
LT20D-NEW
1/2 Inch, 90 Degree, Two-Piece Liquidtight Non-Metallic Fitting, UL E32447, Temperatures up to 107 Degrees C, Nitril Rubber O-Ring, PVC, Grey
LN43DA
1/2 Inch, Straight, One-Piece Liquidtight Non-Metallic Fitting, CSA, UL E32447, Temperatures up to 60 Degrees C, PVC, Grey
LH38
Cord Grip with NPT Threads, Locknut Included, NPT Thread Size 3/8 Inch, Cable Range 0.181 Inch/4.6mm to 0.312 Inch/7.9mm, Hole Clearance 0.670 Inch/17.0mm, Thread Length 0.53 Inch/13.5mm, IP68 Rating, Nylon, BlackFrequently Asked Questions
What type of product is 28-16072 and its voltage?
Product 28-16072 is a 250 V, 2P+G Inlet/Wall Box (male) for North American configurations.
What is the environmental protection rating of this product?
The product has an environmental rating of IP66/IP67, achieved as soon as the plug is latched to the receptacle.
What is the operating temperature range for the device?
The device operates within a temperature range of Min -67°F to Max 140°F.
What wire sizes are compatible with this product?
The product supports THHN wire sizes from a minimum of 16 AWG to a maximum of 10 AWG.
What hazardous location certifications does this product hold?
The product holds CSA and ATEX hazardous location listings, including Ex de IIC T*Gb and Ex tb IIIC T*Db.
What is the short circuit rating of the device?
The device has a short circuit rating of 25 kA Close & Withstand.
What type of contacts does the product use?
The product uses silver-nickel, spring-loaded butt-style contacts for superior conductivity, durability, and electrical performance.
Does the product have a locking feature for secure connections?
Yes, it features dual pawls with a locking provision for inserting a locking pin or padlock to prevent inadvertent disconnection.
What is the standard threaded connection size for the Inlet/Wall Box?
The Inlet/Wall Box comes standard with a ½ inch threaded connection on the bottom.
Is a cord grip included with the product?
No, a cord grip is not included. Customers must select a hazardous cord grip from the Cord Grip section on page 160.
How to Install the DXA Controller
This guide provides step-by-step instructions for the installation and initial setup of the DXA Controller in industrial applications.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors, Color-coded gaskets
- Mount the controller
Install the controller on a DIN rail at a downward angle, ensuring the latching pawls are positioned at the top and bottom. Secure it firmly using the integrated clips.
- Prepare the wiring
Remove the outer sheath of the cable to the appropriate length and strip the insulation from the conductors as specified in Table T2. Ensure the cable sheathing extends through the cord grip for proper sealing.
- Connect the ground
Connect all metal parts to ground using the provided ground terminals. Ensure that the first ground terminal is factory-wired and not removed, as it grounds the other terminals.
- Wire the terminals
Insert the stripped conductors into the contact terminals without fully removing the terminal screws. Tighten the screws to the specified torque in Table T2 to secure the connections.
- Install color-coded gaskets
Insert the color-coded gaskets between the device and its rear accessory to maintain the IP rating. Ensure the protrusions on the gaskets are positioned correctly.
- Perform initial checks
Use a multimeter to verify the continuity of the ground circuit and check that all connections are secure and properly tightened.
- Calibrate the device
Follow the manufacturer's instructions for programming and configuring the DXA Controller to ensure it operates according to the specified parameters.
Frequently Asked Questions about Meltric
What certifications and standards do Meltric products comply with?
Meltric products are rigorously certified and comply with multiple critical industrial standards, including UL 2682, UL 508, UL 98, UL 1682, and CSA 22.2 No. 182.1. Their devices are UL and CSA listed with comprehensive ratings covering electrical endurance, short circuit withstand capabilities, motor circuit disconnect switching, and environmental protection standards like Type 4X/IP69/IP69K. Specific certifications include switch-rated plug and receptacle listings that exceed standard industry requirements.
What are the key features of Meltric products?
Meltric products feature advanced safety and reliability technologies, including spring-assisted terminals, push-button circuit disconnection, enclosed arc chambers, and integrated lockout-tagout capabilities. Key innovations include silver-nickel butt-style contacts, a quick-break mechanism that disconnects circuits in 15 milliseconds, and a self-cleaning contact system. Most devices offer modular construction, optional auxiliary contacts, and automatic watertightness, with robust casings made of fiberglass-reinforced thermoplastic polyamide that resist impact and harsh environments.
What environmental ratings do Meltric products have?
Meltric products feature robust environmental ratings, including Type 4X/IP69/IP69K certification, which also meets IP66/IP67 requirements. Their devices are rated to operate in temperatures from -40°F to 140°F, with specific IK ratings for impact resistance ranging from 08 to 10 Joules depending on the product material and model. Metal-cased products typically have higher impact resistance (IK10 with 20 Joules) compared to polymer-based products (IK09 with 10 Joules).
What industries and applications are Meltric products used for?
Meltric products are used across multiple heavy industrial and hazardous environments, including chemical plants, pharmaceutical facilities, oil and gas operations, grain silos, wood processing plants, plastics manufacturing, and wastewater treatment facilities. Their specialized plugs and receptacles are engineered for high-amperage equipment, wet/washdown environments, and locations with explosive gas or dust risks, with specific product lines like DSN and DS Series designed for different industrial applications ranging from 75-100 horsepower equipment.
What technical support does Meltric offer?
Meltric offers comprehensive technical support through multiple channels. Their Customer Service group provides immediate phone support at 800-433-7642, with trained representatives located at their manufacturing facility. Additionally, Meltric's engineering team offers specialized application support, custom design solutions, and can help integrate Meltric and third-party components into power distribution products.
What are the main product lines offered by Meltric?
Meltric offers a comprehensive range of industrial electrical plugs and receptacles across several key product lines: Switch-Rated Plugs & Receptacles (DSN and DS series from 20-200A), Multipin Connectors (6-37 pin, 2-50A), Standard Duty Plugs & Receptacles (DR, PN, DSDC series), High Ampacity Plugs & Receptacles (PF/PFQ, DR400, CS1000, SP series from 300-600A), and specialized options like RETTBOX electromagnetic self-ejection devices and PNHT high-temperature connectors.
What accessories are available for Meltric products?
Meltric offers a comprehensive range of accessories for their industrial plugs and receptacles, including handles, angle adapters, junction boxes, poly conduit entry boxes, finger drawplates, and protective/padlockable inlet/plug caps. These modular accessories allow customers to customize their electrical connection solutions, with options like 30° and 70° angles, metal and poly configurations, and additional features such as auxiliary contacts and locking mechanisms.
How are Meltric products typically installed?
Meltric products are typically installed by inserting the plug into the receptacle with a simple 30-degree clockwise rotation, which latches the connection and energizes the circuit. The installation process is designed for safety, featuring automatic watertight sealing, dead-front safety shutters, and spring-loaded butt-style contacts that ensure optimal electrical performance. For motor change-outs, qualified workers follow a specific procedure including verifying de-energization, applying lockout/tagout, and carefully inserting the plug into the receptacle.
What is Meltric's warranty policy?
Meltric offers a comprehensive 5-year warranty on electrical contacts for all its plug and receptacle products. This warranty reflects the company's confidence in the durability and high-quality design of their electrical components, which are engineered to provide superior performance and reliability in industrial applications.














