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Overview
- Meltric DXA1 Series Inlet/Box
- Rugged Black Metal Construction
- 20 Amp, 208 VAC, 3P+N+G Configuration
- IP66/IP67 Dust and Water Ingress Protection
- 1/2" NPT Threaded Conduit Entry
Specifications
Color | Black |
Connection Type | 1/2" NPT |
Current Rating | 20 A |
Frequency | 60 Hz |
Ip Rating | IP66/IP67 |
Material | Metal |
Poles | 3P+N+G |
Series | DXA1 |
Size | Size 2 |
Voltage Rating | 208 VAC |

BX4
Sealable and transparent protective covers BX4 and non-removable BX4-CA to protect the devices against accidental contact.
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, Black
LN43DA
1/2 Inch, Straight, One-Piece Liquidtight Non-Metallic Fitting, CSA, UL E32447, Temperatures up to 60 Degrees C, PVC, Grey
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, GreyFrequently Asked Questions
What are the main advantages of the DXA1 product?
The DXA1 features CSA and ATEX hazardous listings, robust metal casings, spring-loaded butt-style contacts, and dual pawls with a locking feature for secure connections.
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 DXA1 has an environmental rating of IP66/IP67, which is achieved as soon as the plug is latched to the receptacle.
What wire sizes are compatible with the DXA1?
The DXA1 is compatible with THHN wire sizes ranging from a minimum of 16 AWG to a maximum of 10 AWG.
Does the DXA1 have hazardous location certifications?
Yes, the DXA1 has CSA and ATEX hazardous location listings, including Ex de IIC T*Gb and Ex tb IIIC T*Db ratings.
What is the short circuit rating of the DXA1?
The DXA1 has a short circuit rating of 25 kA Close & Withstand, tested with RK1 30 A fuses.
What material are the electrical contacts made of?
The electrical contacts are made of silver-nickel, providing superior conductivity, durability, and corrosion resistance.
How does the DXA1 ensure a secure connection?
The DXA1 features dual pawls with a locking provision for secure connections, allowing for a locking pin or padlock to prevent inadvertent disconnection.
What are the horsepower ratings for the DXA1?
For 1-phase, ratings are .75 hp and 2 hp. For 3-phase, ratings are 3 hp and 10 hp.
What is the standard threading for the DXA1 connector and plug?
The connector and plug for the DXA1 come standard with 1/2 inch threading.
How to Install the DXA Controller
This guide provides step-by-step instructions for installing and wiring the DXA Controller in industrial applications, ensuring safety and compliance with hazardous location standards.
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 specifications. Ensure that the cable sheathing extends through the cord grip.
- Connect the conductors
Insert the stripped conductors into the terminal blocks without fully removing the terminal screws. Tighten the screws to the specified torque to secure the connections.
- Establish grounding connections
Connect all metal parts to the ground terminals provided on the controller. Ensure that the ground connection is secure and compliant with safety standards.
- Install color-coded gaskets
Insert the color-coded gaskets between the device and its rear accessory to maintain the IP rating. Position the protrusions on the gasket correctly.
- Verify connections
Use a multimeter to check the continuity of the ground circuit and ensure all connections are secure. Inspect for any loose wires or improper connections.
- Calibrate the controller
Follow the manufacturer's instructions to program and configure the controller settings as required for your specific application.
- Conduct final safety checks
Ensure all screws, caps, and cable glands are tight. Verify that the weight of the cable is supported by the strain relief mechanism and not by the terminal connections.
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.












