Bussmann H4X-05TB External Fro...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$352.55
Bussmann H4X-05TB Front-Operated Pistol Handle

Bussmann H4X-05TB External Front-Operated Pistol Handle, 30A

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Model: H4X-05TB
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Bussmann H4X-05TB External Front-Operated Pistol Handle, 30A

The Bussmann H4X-05TB is a 30A rated, external front-operated pistol handle designed for use with compatible disconnect switches. This operating handle mounts externally to the enclosure for convenient on/off actuation and is engineered to work with NEMA 1, 3R, 4, 4X, and 12 disconnect switches, making it suitable for a wide range of enclosure ratings from indoor commercial spaces to washdown and outdoor environments. Built with a padlockable, defeatable design and an integrated test function, the H4X-05TB supports safe lockout/tagout procedures and authorized maintenance access. The handle is RoHS compliant and finished in black for durable, professional appearance.

Key Features

  • Amperage Rating: 30A rated for reliable operation with compatible disconnect switches.
  • Front-Operated Design: External, front-operated pistol handle allows convenient enclosure-mounted actuation without opening the enclosure door.
  • Test Function: Integrated test function lets personnel verify switch position and circuit status safely.
  • Padlockable: Padlockable handle supports lockout/tagout (LOTO) safety procedures for de-energized maintenance work.
  • Defeatable: Defeatable interlock feature permits authorized access when required for service.
  • Broad Compatibility: Used with NEMA 1, 3R, 4, 4X, and 12 disconnect switches for flexible application across enclosure types.
  • Finish: Durable black handle finish.
  • Lightweight: Compact .44 LB handle assembly adds minimal weight to the enclosure.

Certifications & Compliance

  • RoHS Compliant
  • Compatible with NEMA 1, 3R, 4, 4X, and 12 rated disconnect switch enclosures

Technical Specifications

  • Amperage Rating: 30A
  • Special Features: External, Test function, Padlockable, Defeatable
  • Used With: Used with NEMA 1, 3R, 4, 4X, and 12 disconnect switches
  • Product Color: Black
  • Product Weight: .44 LB
  • Product Type: Operating Handle

Typical Applications

  • Disconnect Switch Enclosures
  • Lockout/Tagout (LOTO) Safety Procedures
  • Commercial and Industrial Electrical Panels
  • Outdoor and Washdown Enclosure Installations
  • Panel Maintenance Requiring Authorized Access

Why Bussmann?

Bussmann is a trusted name in electrical safety and switching components, and the H4X-05TB operating handle reflects that reliability with its padlockable, defeatable, test-function design built for demanding disconnect switch applications. Backed by RoHS compliant construction and broad NEMA compatibility, this handle delivers dependable, code-conscious performance for professional electrical installations.

Manufacturer Resources

Product Specs

Amperage Rating:
30A
Special Features:
External, Test function, Padlockable, Defeatable
Used With:
Used with NEMA 1, 3R, 4, 4X, and 12 disconnect switches
Department:
Electrical
Product Length:
.001 IN
Product Color:
Black
Product Height:
.001 IN
Product Weight:
.44 LB
Product Width:
.001 IN
Product Type:
Operating Handle
Product Group:
Wiring Devices

Bussmann H4X-05TB – Frequently Asked Questions

1) Will the Bussmann H4X-05TB pistol handle work on a NEMA 4X washdown disconnect enclosure?
Yes. The H4X-05TB is specified for use with NEMA 1, 3R, 4, 4X and 12 disconnect switches, so it covers indoor commercial panels, outdoor 3R, washdown 4/4X, and dust-tight 12 enclosures. It mounts externally on the enclosure so the switch can be operated with the door closed.
2) Can an electrician padlock this Bussmann operating handle for lockout/tagout?
Yes. The H4X-05TB is a padlockable handle, which is what lets a crew apply a LOTO lock at the enclosure before servicing the circuit downstream. It is also defeatable, so authorized personnel can open the enclosure door with the handle in the off position when service requires it.
3) Does this handle come with the disconnect switch, or is it ordered separately?
The H4X-05TB is the operating handle only, a .44 lb external pistol-grip assembly in black. The disconnect switch and enclosure are separate items, and the switch has to be a 30A unit in a NEMA 1, 3R, 4, 4X or 12 enclosure for this handle to be the correct mate.
4) I need a handle for a washdown NEMA 4X enclosure - is the Bussmann H4X-05TB the right one or should I look at the Eaton C371?
The Bussmann H4X-05TB is rated for use with NEMA 1, 3R, 4, 4X, and 12 disconnect switches, so it covers indoor, outdoor rainproof, watertight, and washdown enclosure types in one part. The Eaton C371 is an operating handle series for disconnect switches, and the enclosure ratings it carries depend on the specific C371 catalog number. For a 4X washdown panel driven by a 30A disconnect, the H4X-05TB states the 4X compatibility directly.
5) My disconnect is larger than 30A - can I still use the Bussmann H4X-05TB?
No. The H4X-05TB is a 30A rated pistol handle and should be paired with a disconnect switch in that amperage class. For a larger switch, step to a handle rated for that frame size - the Eaton C371 series is an operating handle line for disconnect switches and is worth checking against your switch rating. Handle and switch ratings need to agree; do not fit a 30A handle to a higher-rated disconnect.
6) What does the test function on the Bussmann H4X-05TB pistol handle actually do?
The test function lets a technician verify switch position and circuit status from the outside of the enclosure, before the door is opened. It is the feature that separates this handle from a plain on/off mechanism, and it is why it shows up on maintenance-heavy industrial panels.
7) What is the Bussmann part number for this 30A external pistol handle?
Order it as Bussmann H4X-05TB. That is the manufacturer part number for the 30A external front-operated pistol handle with test function.
8) Is there an alternative operating handle if the Bussmann H4X-05TB is not the right match?
The Eaton C371 Series operating handle for disconnect switches is the other line we carry for this application. Match the handle to the switch it is going on, since operating handles are tied to the specific disconnect family rather than being universal.
9) What is the alternative to the Bussmann H4X-05TB pistol handle for a disconnect switch?
The Eaton C371 series operating handle is the closest peer for disconnect switch actuation. The Bussmann H4X-05TB is a 30A rated external front-operated pistol handle with a test function, padlockable and defeatable, used with NEMA 1, 3R, 4, 4X, and 12 disconnect switches. Match the handle to the switch it will drive: operating handles are keyed to the specific disconnect mechanism and shaft, so confirm the switch series before ordering either one.
10) Does the Eaton C371 handle do the same job as the Bussmann H4X-05TB for lockout/tagout?
Both are operating handles for disconnect switches, but the lockout detail differs in what is documented. The Bussmann H4X-05TB is specified as padlockable and defeatable with an integrated test function, which is what a facility electrician needs for a documented LOTO point at the enclosure door. The Eaton C371 is a disconnect switch operating handle series; confirm the padlock provision on the specific C371 catalog number before committing it to a LOTO procedure.
11) Does the H4X-05TB handle meet RoHS requirements for a spec job?
Yes, the H4X-05TB is RoHS compliant. That is the compliance claim published for this handle; the enclosure NEMA ratings it works with are 1, 3R, 4, 4X and 12.
How fast can I get the Bussmann H4X-05TB 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 Bussmann H4X-05TB come with a warranty?
Absolutely. The Bussmann H4X-05TB 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 Bussmann H4X-05TB?
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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