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Overview
- Size 2 metal inlet/box with 3P+G configuration
- Rated 20A at 600V AC, 60 Hz
- IP66/67 environmental protection for harsh conditions
- 3/4" NPT conduit connection
- Manufactured by Meltric in the US
Specifications
Color | Black |
Connection Type | 3/4" NPT |
Current Rating | 20 A |
Frequency | 60 Hz |
Ip Rating | IP66/IP67 |
Material | Metal |
Poles | 3P+G |
Series | DXA1 |
Size | Size 2 |
Voltage Rating | 600 VAC |

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 are the main advantages of the DXA1 product line?
The DXA1 features CSA and ATEX hazardous listings, robust metal casings, spring-loaded butt-style contacts, and dual pawls with a locking feature.
What is the maximum amperage and voltage rating?
The DXA1 is rated for a maximum of 20 A and 600 VAC at 60 Hz.
What is the environmental protection rating?
The product has an IP66/IP67 watertightness rating, which is achieved when the plug is latched to the receptacle.
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 are the hazardous location certifications?
It holds CSA and ATEX hazardous listings, including Ex de IIC T*Gb, Ex tb IIIC T*Db, and Class I Zone I AEx de IIC T*Gb.
What is the short circuit rating?
The short circuit rating is 25 kA Close & Withstand, tested with an RK1 30 A fuse.
What material are the electrical contacts made from?
The electrical contacts are made from silver-nickel, providing superior conductivity, durability, and corrosion resistance.
Can this device be locked to prevent disconnection?
Yes, it includes a locking provision for inserting a locking pin or padlock to prevent inadvertent disconnection.
What is the standard threaded location for part 28-16143-34B?
The suffix -34B indicates a 3/4 inch threaded location on the bottom for this part.
Are hazardous location devices returnable?
No, devices rated for hazardous locations are explicitly stated as not returnable.
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 environments.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors, Color-coded gaskets
- Mount the controller
Secure the DXA controller to the DIN rail using the integrated clips. Ensure the controller is level and firmly attached.
- Prepare the wiring
Remove the outer sheath of the cable to the appropriate length and strip the conductor insulation as indicated in the installation manual. Ensure that the cable sheathing extends through the cord grip.
- Connect the ground
Connect all metal parts to the ground terminals provided on the controller. Ensure that the ground connection is secure and complies with safety standards.
- Wire the terminals
Insert the prepared conductors into the terminal blocks without completely removing the terminal screws. Tighten the screws to the specified torque 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 that the protrusions on the gasket are positioned correctly.
- Verify connections
Use a multimeter to check the continuity of the ground circuit and ensure all connections are secure and functioning properly.
- Calibrate the controller
Follow the manufacturer's instructions to configure the controller settings as per your application requirements. Ensure all parameters are set correctly.
- Conduct final safety checks
Inspect all connections, tighten any loose screws, and ensure that the safety shutter is functioning correctly before powering up the system.
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.












