Hubbell CS6364C 50A California Style Twist-Lock Connector

PRODUCT DESCRIPTION

50 Amp
125/250V AC
3-Pole, 4-Wire Grounding
California Style (non-NEMA)
Oversized Brass Contacts
#10–#6 AWG Stranded
.830"–1.250" Cord

In short: The Hubbell CS6364C is a 50A, 125/250V AC, 3-pole, 4-wire grounding California Style Twist-Lock® Insulgrip® connector, the female end of a cord. Oversized brass contacts keep operating temperature down, a two-piece external cord clamp gives maximum strain relief, and hex-socket box terminals accept #10–#6 AWG stranded copper on cord from .830" to 1.250". It mates with the CS6365C plug and CS6375 flanged inlet.

Built for heavy duty

Why choose the Hubbell CS6364C 50A connector?

The female end of a 50A cable takes the most abuse: it hangs off distro, gets dragged through mud and gets stepped on all day. Hubbell built its 50A Twist-Lock® devices with a super-tough nylon housing and rigid construction that restricts contact distortion, so the connector keeps a solid grip on the plug and only mates with the right device.

Oversized contacts

Larger brass contacts minimize operating temperature, which matters when a cable carries heavy loads for a full shoot day.

Tough nylon housing

Impact-resistant nylon stands up to heavy-duty use in harsh environments, from loading docks to outdoor event sites.

Two-piece external cord clamp

Offset gripping jaws hold both the conductors and the cord jacket for maximum strain relief on heavy 50A cable.

Hex-socket box terminals

A threaded slug with a hex socket applies high clamping pressure to the conductor without damaging strands.

Thermoplastic polyester interior

The terminal retainer and interior resist heat and impact, protecting the contacts where the current actually flows.

Rated to break full load

Certified for current interrupting at full rated current and tested to withstand 2,000V minimum dielectric. Listed to UL 498 and certified to CSA C22.2 No. 42.

On set & on show

Where is a 50A California Style connector used?

The 50A, 125/250V California Style twist-lock is a workhorse for single-phase power in film, video, live events and venues. The CS6364C is the female end you'll put on:

50A extension cables, paired with a CS6365C plug on the other end
Feeders for distro boxes and equipment with CS6375 flanged inlets. Shop distro boxes
Generator-to-distro runs, as the far end of a 50A generator feeder cable
Cable repairs and rental-house rebuilds where a damaged connector needs a heavy-duty replacement
Venue, church and studio power drops that hang a 50A connector for touring or rental gear
Temporary event power for tents, stages, catering and OB vans

Installation overview

How do you wire a Hubbell CS6364C connector?

Always work de-energized and follow Hubbell's installation instructions for strip length and terminal torque.

Check the cord. Confirm the cord's outside diameter is between .830" and 1.250" (21.08–31.75 mm) and the conductors are #10 to #6 AWG stranded copper.
Strip to length. Remove the outer jacket and strip each conductor to the length shown in Hubbell's instructions.
Land each conductor. Insert each conductor fully into its marked box terminal (X, Y, W and G).
Tighten the terminals. Use a hex key to tighten each threaded slug to Hubbell's specified torque. The box design clamps hard without cutting strands.
Assemble and clamp. Close the housing and tighten the two-piece cord clamp on the cord jacket, not on the individual conductors.

3-pole, 4-wire grounding terminal identification
Terminal	Function	Typical cord conductor*
X	Line 1 (hot)	Black
Y	Line 2 (hot)	Red
W	Neutral	White
G	Equipment ground	Green

*Common 125/250V color convention. Follow the terminal markings on the device, your local code and your shop's standard. Termination should be done by a qualified person.

Full specifications

CS6364C specifications

Electrical & mechanical
Configuration	California Style 50A 125/250V (non-NEMA)
Device type	Female Insulgrip® connector
Current rating	50A
Voltage rating	125/250V AC
Poles / wires	3-pole, 4-wire grounding
Current interrupting	Certified at full rated current
Dielectric voltage	Withstands 2,000V minimum
Terminal accommodation	#10 AWG – #6 AWG stranded copper wire only
Terminal type	Box terminal with hex socket threaded slug
Cord diameter range	.830"–1.250" (21.08–31.75 mm)

Materials, environmental & listings
Housing	Nylon
Interior / terminal retainer	Thermoplastic polyester
Contacts	Brass, oversized
Terminal screws	Stainless steel
Cord grip	Polyester
Flammability	HB or better
Operating temperature	75°C max continuous; −40°C min (without impact)
Listings	UL 498 listed · CSA C22.2 No. 42 certified

Ordering information
Catalog number	Description	Cord diameter	UPC
CS6364C	Nylon cover, thermoplastic polyester interior	.830"–1.250" (21.08–31.75 mm)	783585827971

Mates & accessories

What plugs into the CS6364C?

The CS6364C accepts only 50A, 125/250V California Style male devices: the CS6365C plug on a cord or the CS6375 flanged inlet on a panel or box. California Style is not part of the NEMA L-series, and the rigid construction helps keep it from mating with the wrong device.

Hubbell 50A California Style system
Catalog #	Device	Use
CS6364C	Connector (female)	Cord end that receives a plug or inlet
CS6365C	Plug (male)	Opposite end of a 50A extension cable
CS6375	Flanged inlet (male)	Panel or box mount power input
HBL7716C	Weatherproof boot, short	Seals the connection in wet or outdoor locations
HBL7717C	Weatherproof boot, long	Seals the connection in wet or outdoor locations

Questions

CS6364C frequently asked questions

What is the Hubbell CS6364C?

The CS6364C is a female Twist-Lock connector body for cord, rated 50A at 125/250V AC with 3 poles and 4 wires, including a grounding wire. It is a California Style device, a non-NEMA configuration, and mates with the CS6365C plug and CS6375 flanged inlet.

What plugs into the Hubbell CS6364C?

The CS6365C plug on a cord or the CS6375 flanged inlet on a panel or box. It only accepts 50A California Style male devices and will not mate with NEMA L-series plugs such as L14-30.

What is the difference between the CS6364C and CS6365C?

The CS6364C is the female connector that receives power, and the CS6365C is the male plug that plugs into a receptacle or connector. A CS6365C on one end and a CS6364C on the other makes a standard 50A California Style extension cable.

What wire size and cord diameter does the CS6364C accept?

The box terminals accept #10 AWG through #6 AWG stranded copper wire only, and the cord clamp fits cord with an outside diameter of .830 to 1.250 inch (21.08 to 31.75 mm).

Can the CS6364C be used outdoors or in wet locations?

For wet or outdoor locations, protect the connection with a Hubbell weatherproof boot. The HBL7716C is the short boot and the HBL7717C is the long boot for 50A Twist-Lock devices.

Is the Hubbell CS6364C UL listed?

Yes. It is listed to UL 498 and certified to CSA C22.2 No. 42. It is also certified for current interrupting at full rated current and withstands 2,000V minimum dielectric.

Why does the CS6364C have oversized contacts?

Oversized brass contacts minimize operating temperature. Running cooler matters on 50A cables that carry heavy loads for long periods, such as generator feeders and distro runs.

What temperatures can the CS6364C handle?

It is rated for 75°C maximum continuous and -40°C minimum, the low end without impact. The housing material is rated HB or better for flammability.

Power distro advice from people who actually run cable

Barn Door Lighting Outfitters has supplied film lighting, grip and power distribution since 1995. We're still a small, family-owned shop in Beaufort, South Carolina, and we build and repair 50A cable every day. Not sure which plug, connector or cord you need? Call 888-276-3667 or email info@barndoorlighting.com and a real person will help you spec it.