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By Hubbell Wiring Device-Kellems 

Catalog ID: HBL7968

By Hubbell Wiring Device-Kellems
Catalog ID:  HBL7968
Locking Devices, Twist-Lock®, Industrial, Flanged Inlet, 50A 250V DC/600V AC, 3-Pole 4-Wire Grounding, Non-NEMA, Screw Terminal, Zinc plated steel casing, thermoset interior with lift cover, Metallic
  • Metallic flanged casing provides maximum strength and protection
  • Thermoset interior provides superior heat resistance

With Lift Cover, For Replacement Only

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Product Details


Application Extra Heavy Duty Industrial
Color Metallic
Environmental Conditions Indoor Dry Unless Protected By Additional Means
Item Type 50A Flanged Inlet
Material Steel, Zinc Plated
Material - Mounting Hardware Screw Mounting
Number Of Poles 3-Pole
OEM Brand Name Hubbell Wiring Device-Kellems
Operating Temperature Maximum continuous 75°C and minimum -40°C without Impact
  • Electrical - Current Interrupting - Certified for current interrupting at full rated current
  • Electrical - Dielectric Voltage - Withstands 2,000V minimum
  • Environmental - Flammability - UL 94 V0
  • Environmental - Operating Temperatures - Maximum continuous 75°C minimum –40°C (w/o impact)
  • Mechanical - Terminal Accommodation - #10 AWG - #6 AWG solid or stranded copper wire only
Type Flanged Inlet
UPC 783585237879


Dimensions 2.17 in x 3.50 in x 2.68 in
Display Size Standard Sized Product
Height 2.68 in
Length 2.17 in
Weight 1.10 lb
Width 3.50 in

Electrical Ratings

Amperage Rating 50 A
Connectivity Pressure Terminal Screws
Current / Amperage Rating 50 A
Current Rating 50 A
Dielectric Strength Withstands 2,000V minimum
Phase Three Phase
Voltage Rating 250 VDC/600 VAC
Voltage Rating Description 250 VDC/600 VAC
Wattage 30000 W

Conductor Related

Number Of Wires 4-Wire
Wire Size #8 AWG to #4 AWG

Certifications and Compliance

Industry Standard(s)
  • Certified to CSA C22.2 No.42
  • Listed to UL 498


Carton Quantity 10

Resources and Downloads


Insulgrip Twist-Lock and Straight Blade Devices