Bryant 4730 NEMA Locking Conne...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$33.20
Bryant 4730 NEMA Locking Connector, Twist-Lock Receptacle

Bryant 4730 NEMA Locking Connector, Twist-Lock Receptacle

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Model: 4730

In Stock (leaves warehouse same day if ordered before 3pm ET)

$33.20
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Bryant 4730 NEMA Locking Connector, Twist-Lock Receptacle

The Bryant 4730 line of NEMA locking connectors spans catalog numbers 70520NC, 70530NC, 70615NC, 70620NC, 70630NC, 70720NC, 70820NC, 70830NC, 70920NC, and 70930NC, covering NEMA L5 through L9 locking configurations in 15A, 20A, and 30A ratings. Each catalog number is the receptacle ("R") half of its matching locking pair, engineered to mate with the corresponding Bryant locking plug for a twist-lock connection that resists accidental disconnection caused by vibration, tension, or incidental contact. Electrical contractors, facility maintenance teams, and industrial end users specify these Bryant locking connectors for dependable performance in commercial, industrial, and portable power applications where the mechanical lock matters as much as the electrical connection itself. Match the catalog number to the NEMA configuration and amperage already in use to ensure proper mating with existing plugs and connectors.

Key Features

  • NEMA Locking Configurations: Available across NEMA L5, L6, L7, L8, and L9 locking families in 15A, 20A, and 30A ratings to match the plug configuration already in use.
  • Receptacle-End Design: Each unit in this line is the receptacle end of its NEMA locking pair, providing the power connection point within the circuit.
  • Twist-Lock Security: The locking collar engages with a simple twisting motion, holding the mating plug firmly in place to help guard against accidental disconnects in active use.
  • Bryant Catalog Numbers: Identified by Bryant catalog numbers 4730, 70520NC, 70530NC, 70615NC, 70620NC, 70630NC, 70720NC, 70820NC, 70830NC, 70920NC, and 70930NC for accurate ordering, cross-reference, and replacement when servicing existing installations.
  • Built for Demanding Environments: Suited to commercial and industrial settings where a stable, low-maintenance locking connection point is required day after day.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Commercial and Industrial Power Distribution
  • Temporary and Portable Power Connections
  • Equipment and Machinery Power Hookups
  • Facility Maintenance and Electrical Upgrades
  • Renovation and New Construction Wiring Projects

Why Bryant?

Bryant has long supplied locking devices that electrical professionals specify by catalog number, and this line of NEMA locking connectors continues that standard with configurations engineered for secure, repeatable connections across the L5 through L9 families. Choosing the correctly configured Bryant locking connector helps ensure proper mating with the corresponding rated plugs and connectors, supporting safe, code-compliant installations. For contractors and facilities that depend on dependable locking power connections, Bryant's locking connector line remains a straightforward, reliable choice.

Product Specs

list_batch:
BRY-20260909
Product Type:
Locking Connector
Configuration:
Receptacle
Connection Type:
Twist-Lock
Standards:
NEMA Locking
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Plugs & Connectors

Bryant 4730 – Frequently Asked Questions

1) Is the Bryant 4730 the plug end or the receptacle end of the locking pair?
Receptacle. Every catalog number in the Bryant 4730 locking connector line is the "R" half of its NEMA locking pair, meant to mate with the corresponding Bryant locking plug. If you need the cord-end male device, this is the wrong half of the pair to order.
2) Which NEMA configurations and amp ratings does the Bryant 4730 locking connector line cover?
Eleven NEMA locking configurations across the L5 through L9 families: L5-15R (cat. 4730), L5-20R (70520NC), L5-30R (70530NC), L6-15R (70615NC), L6-20R (70620NC), L6-30R (70630NC), L7-20R (70720NC), L8-20R (70820NC), L8-30R (70830NC), L9-20R (70920NC) and L9-30R (70930NC), in 15A, 20A and 30A. Order by matching the configuration already on your plugs, not by amperage alone, since L5, L6, L7, L8 and L9 use different voltages and blade patterns and will not intermate.
3) Will a Bryant 70620NC connector accept an L6-30 plug?
No. NEMA locking devices are keyed by blade pattern, so an L6-20R body such as the Bryant 70620NC only accepts an L6-20 plug. For a 30A L6 cord you need the L6-30R, Bryant 70630NC. The same rule runs through the whole line: L5-15, L5-20 and L5-30 are three separate, non-interchangeable patterns.
4) I'm replacing a worn twist-lock connector on a piece of shop equipment. How do I identify which Bryant to order?
Read the NEMA code stamped on the face of the existing device or on the mating plug, for example L5-30R or L6-20R, and match it to the Bryant catalog number: L5-30R is 70530NC, L6-20R is 70620NC, L8-30R is 70830NC, and so on. Matching the configuration guarantees it mates with the plugs and cord sets already in service. Amperage alone is not enough, since L6-20, L7-20, L8-20 and L9-20 are all 20A but on different voltages.
5) Is the Bryant 4730 a 4-wire device for 3-phase equipment?
No. The 4730 line covers the NEMA L5 through L9 families, which are two-pole three-wire single-phase configurations. For a 3-phase or 4-wire cord end you want a different pattern entirely, such as the Leviton 2323 five-wire four-pole locking connector or the Leviton 2413 four-wire three-pole 125/250V connector.
6) None of the Bryant 4730 connectors fit my 4-wire generator cord - what should I use instead?
The Bryant 4730 line runs NEMA L5 through L9 configurations in 15A, 20A and 30A, all two-pole and three-pole style locking patterns for single-circuit power. For a 4-wire 125/250V feed such as an L14 generator setup, the Eaton Arrow Hart Ultra-Grip L14-20 connector is rated 20A 125/250V in commercial grade, and the Leviton 2413 is a 4-wire 3-pole 125/250V industrial locking connector.
7) What is the closest alternative to the Bryant 70530NC L5-30R locking connector?
The Bryant 70530NC is the NEMA L5-30R receptacle half, rated 30A. The Leviton 2313 is a 3-wire 2-pole industrial grade locking connector rated 125V 30A in the same NEMA L5-30R configuration, so it mates with the same L5-30P plugs already in the field. Both are the connector (receptacle) end rather than the plug end.
8) Is there an equivalent to the Bryant 70630NC L6-30R connector from another brand?
Yes. The Bryant 70630NC is the L6-30R receptacle rated 30A. The Eaton Arrow Hart Ultra Grip locking connector in the L6-30 series is a 30A two-pole three-wire nylon connector, matching the same two-pole three-wire L6-30 wiring pattern. Either one accepts an L6-30P plug.
9) What can I use in place of the Bryant 70615NC L6-15R connector?
The Bryant 70615NC covers NEMA L6-15R at 15A. The Pass and Seymour Turnlok PSL615-C is a NEMA L6-15 locking connector rated 15A 250V in EHU nylon, so it takes the same L6-15P plug. The Turnlok body is nylon where the Bryant unit is identified by its Bryant catalog number for cross-reference on existing installs.
10) Is the Eaton 7506 the same thing as the Bryant 7506?
They share a catalog number but are different devices. The Bryant 7506 is part of the Bryant twist-lock receptacle line ordered under Bryant catalog numbers. The Eaton 7506 is an industrial grade L1-15 locking connector in black, built to Eaton's extra heavy-duty industrial specification grade. L1-15 is a two-wire non-grounding pattern, so confirm which NEMA configuration your existing plug uses before ordering either one.
11) Why use a twist-lock connector instead of a straight-blade one on portable equipment?
The locking collar on the Bryant 4730 line engages with a twist and holds the mating plug mechanically, so vibration, a tug on the cord, or someone brushing past does not drop power. On portable power, temporary distribution, and machinery hookups that is the whole point; a straight-blade device relies only on blade friction and pulls free.
12) What are the alternatives to the Bryant 70530NC L5-30 connector from other brands?
For a 125V 30A L5-30R cord connector, the Leviton 2313 is a three-wire two-pole industrial grade device in the same configuration. On the L6-30 side, the Eaton Arrow Hart Ultra Grip L6-30 connector is the two-pole three-wire nylon equivalent. For 15A 250V L6-15, the Pass & Seymour Turnlok PSL615-C is the matching pattern. Pick by NEMA code first, then by grade.
13) Can I standardize a facility on one Bryant twist-lock connector across all my equipment?
Only where the equipment shares a voltage and amperage. A single NEMA pattern such as L5-20 (Bryant 70520NC) can cover all your 125V 20A drops, but 250V loads need the L6, L7, L8 or L9 pattern to suit, and 30A loads need the 30A device. The practical approach for an MRO stock is to carry the two or three configurations your building actually uses, matched to the plugs already on the cord sets.
14) I need a 5-wire locking connector - does the Bryant 4730 series cover that?
No. The Bryant 4730 catalog numbers cover the NEMA L5, L6, L7, L8 and L9 locking families, which are two- and three-pole patterns. For a 5-wire 4-pole 20A circuit, the Leviton 2323 is an industrial grade 5-wire 4-pole locking connector at 20A.
15) What is the difference between a commercial grade and industrial grade locking connector when substituting for a Bryant 4730 unit?
Grade describes the construction level the device is built to, not the NEMA pattern. Among comparable locking connectors, the Eaton Arrow Hart L14-20 is listed as commercial grade, while the Leviton 2313, 2323, 2413 and 2423 are industrial grade and the Eaton 7506 is extra heavy-duty industrial specification grade. Whichever grade you choose, the NEMA configuration and amperage still have to match the plug in service, since the Bryant units are ordered by NEMA configuration and amperage.
16) Can I substitute a locking plug for the Bryant 70820NC connector?
No. The Bryant 70820NC is the receptacle half of the NEMA L8-20 pair at 20A, and every device in the Bryant 4730 line is a receptacle configuration with a twist-lock connection. A plug will not mate with it. Cross-brand alternatives that are also connector ends include the Leviton 2423 industrial grade locking connector and the Eaton Arrow Hart Ultra Grip line - match the NEMA pattern to L8-20 before ordering.
17) Is an industrial grade locking connector worth it over a commercial grade one for a plant floor?
On equipment that gets plugged and unplugged daily or lives in a dirty, high-vibration area, industrial grade bodies hold up better. In the peer set, the Leviton 2313, 2323, 2413 and 2423 are industrial grade, the Eaton 7506 L1-15 is extra heavy-duty industrial specification grade, and the Eaton L14-20 Ultra-Grip is commercial grade. The Bryant 4730 connectors are specified for commercial, industrial, and portable power service where a stable locking connection point is needed day after day.
How fast can I get the Bryant 4730 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bryant 4730 come with a warranty?
Absolutely. The Bryant 4730 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bryant 4730?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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