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Overview
- 250 Amp rating for heavy-duty industrial power distribution
- 3 poles + neutral + ground (3P+N+G) configuration
- Operates at 277/480 VAC, 60 Hz
- Type 4X environmental protection with metal blue housing
- Includes two auxiliary contacts and self-returning lid
Specifications
Color | Blue |
Current Rating | 250 A |
Frequency | 60 Hz |
Ip Rating | IP4X |
Material | Metal |
Nema Rating | Type 4X |
Poles | 3P+N+G |
Series | DR250 |
Size | Size 6 |
Voltage Rating | 277/480 VAC |
Similar Products
39-24243-K04-972-375-843
Voltage Rating: 480 VAC
Poles: 3P+G
Connection Type: Mushroom Pawl Padlock Pawl
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Frequently Asked Questions
What is the maximum voltage rating for this product?
The maximum voltage rating for this product is 600 VAC.
What is the operating temperature range?
The operating temperature range is from -40°F to 140°F.
What is the maximum amperage for this device?
The maximum amperage for this device is 250 A.
What are the environmental ratings?
The environmental ratings are Type 4X/IP66/IP67/IP69/IP69K.
What wire sizes are compatible with this product?
The wiring capacity is from 4 AWG to 4/0 AWG for main connections and up to 14 AWG for auxiliary contacts.
Is this device suitable for current interrupting?
No, this device is not rated for current interrupting applications.
What certifications does this product have?
This product is certified under UL 1682, CSA C22.2 NO. 182.1, and NOM.
What is the short circuit rating?
The short circuit rating is 10 kA, tested with RK1 current limiting fuses.
What installation accessories are recommended?
Installation accessories include various handles and cord grips, which should be ordered separately.
What is the part number for the padlock pawl?
The part number for the padlock pawl is -843.
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.
