Petzl Vertex Industrial Safety Helmet β Type I, Class E, Non-Vented (H43406)
EDITORIAL REVIEW: 4.8/5 WC Safety Review β the Petzl Vertex Industrial Safety Helmet Editorial assessment by the WC Safety Editorial Team, based on published Petzl specifications and the ANSI/ISEA Z89.1 standard. ...
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Editorial assessment by the WC Safety Editorial Team, based on published Petzl specifications and the ANSI/ISEA Z89.1 standard. We did not laboratory-test this product.
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Petzl Vertex Industrial Safety Helmet Overview
The Petzl Vertex Industrial Safety Helmet (H43406) is a non-vented climbing-style safety helmet in black that conforms to ANSI Z89.1 Type I and Class E, plus CE, EN 397, EN 12492, and EN 50365. The non-vented ABS shell is what allows the Class E electrical rating, and Petzl states it also protects against molten metal splash and flames.
As the Petzl Vertex (Petzl H43406), it is a Type I Class E safety helmet. This non-vented electrical safety helmet is a modular climbing-style helmet; if you need airflow instead, see the Petzl Vertex vs Vertex Vent note below.
It uses a six-point textile suspension with CENTERFIT and FLIP&FIT and an adjustable-strength chinstrap. Class E is proof-tested to 20,000 volts as supplementary protection β covered below. Compare it with the MSA V-Gard H1 and the KASK Zenith X2, understand the ratings in hard hat classes explained, and browse the range in safety helmets.
Who This Helmet Is For
| Use case | Fit | Buyer guidance |
|---|---|---|
| Electrical hazard environments | Strong | Non-vented Class E; also EN 50365. |
| Molten metal or flame exposure | Strong | Unventilated shell rated for both. |
| Work at height and rope access | Strong | CENTERFIT, FLIP&FIT, chinstrap. |
| Hot conditions, max airflow | Choose Vent | Non-vented; Vertex Vent is Class C. |
| Lateral (side) impact hazards | Consider Type II | ANSI rating is Type I. |
Know what the Class E rating means. The Vertex is proof-tested to 20,000 volts, and its unventilated shell adds molten-metal and flame protection, but Class E is supplementary protection, not authorization to work on live parts: you still de-energize where required, use rated electrical PPE, keep safe approach distances, and follow your electrical-safety program. It is ANSI Type I, rated for top impact, not Type II lateral impact, even though it also meets EN 12492. Retire the helmet after any impact or electrical contact. And a helmet protects your head, not your body: working at height still requires a personal fall arrest system with a harness, connector, and rated anchor, no matter how secure the chinstrap. Confirm the ratings marked on the shell against your hazard. Learn more in best hard hat for electrical work and Class E vs Class G.
Pros & Cons
- ANSI Type I, Class E (20,000 V), non-vented
- Molten-metal and flame protection; EN 50365
- Six-point suspension; CENTERFIT + FLIP&FIT
- Adjustable-strength chinstrap for height
- Modular: Petzl headlamp, ear, visor accessories
- Non-vented, so warmer than the Vertex Vent
- ANSI Type I only; no Type II lateral rating
- Class E is supplementary, not live-work rated
- This model is black only
How It Compares
The Vertex is a non-vented Type I, Class E helmet. Weigh it against nearby options:
| Option | Type | Class | Best for |
|---|---|---|---|
| Petzl Vertex (this page) | Type I | Class E, non-vented | Electrical, molten metal, at height |
| MSA V-Gard H1 | Type I | Class E, non-vented | Electrical work at height |
| KASK Zenith X2 | Type I & II | Class E, non-vented | Adds Type II lateral |
Choose the Vertex for a Petzl-ecosystem Class E helmet, the MSA V-Gard H1 for another Type I Class E, or the KASK Zenith X2 if you also need ANSI Type II. See best safety helmets, Type I vs Type II, and hard hats vs safety helmets.
Specifications
| Brand / Model | Petzl Vertex Industrial (H43406) |
| Style | Non-vented climbing-style safety helmet; black |
| Ratings | ANSI Z89.1 Type I, Class E; CE, EN 397, EN 12492, EN 50365 |
| Extra protection | Unventilated shell: molten metal splash and flame protection |
| Suspension | Six-point textile; CENTERFIT and FLIP&FIT; adjustable-strength chinstrap |
| Accessories | Modular: Petzl headlamp, hearing protection, visors |
Related Guides
hard hat classes explained, Type I vs Type II, Class E vs Class G, best safety helmets, best hard hat for electrical work, hard hats vs safety helmets.
Related Resources
safety helmets head protection MSA V-Gard H1 KASK Zenith X2 MSA V-Gard H2 Pro
Frequently Asked Questions
What is the Petzl Vertex Industrial (H43406)?
It is a non-vented climbing-style safety helmet in black that conforms to ANSI Z89.1 Type I and Class E, plus CE, EN 397, EN 12492, and EN 50365. It uses a six-point textile suspension and a chinstrap, and it is built for work at height and on the ground.
Is this model vented or non-vented, and what class?
This model is non-vented, which is what gives it the Class E electrical rating and molten-metal and flame protection. Petzl also makes the Vertex Vent, a ventilated version that is Class C with no electrical rating, so confirm the model for the configuration you need.
Can I work on live electrical parts because it is Class E?
No. Class E is proof-tested to 20,000 volts as supplementary head protection; it does not authorize live work. You still de-energize where required, use rated electrical PPE, keep safe approach distances, and follow your electrical-safety program.
Does it protect against molten metal and flames?
Petzl states the unventilated outer shell protects against molten metal splash and flames, in addition to the Class E electrical rating. That makes the non-vented Vertex suited to utility, foundry, and similar work; confirm the ratings match your hazard.
What are the CENTERFIT and FLIP&FIT fit systems?
CENTERFIT centers the helmet on the head with two adjustment wheels, and FLIP&FIT lowers the headband and tightens the nape so the helmet sits low and stays put during movement. Together they help keep the helmet stable at height.
What is the shell made of?
The Vertex is made from ABS, nylon, polycarbonate, high-strength polyester, and polyethylene. Inspect the shell for cracks or dents and replace the helmet after any significant impact, since a damaged shell no longer protects to its rating.
What color is this model?
This model is black. Petzl offers the Vertex in several colors under different part numbers, so if you need a specific color for site coding, confirm the part number for that color before ordering.
Does the chin strap make it fall protection?
No. The adjustable-strength chinstrap keeps the helmet on during a slip or at height, but a helmet is head protection, not fall protection. Working at height still requires separate fall-arrest equipment with a harness, connector, and rated anchor.
What does the EN 50365 rating add?
EN 50365 is a European standard for electrically insulating helmets for use on low-voltage installations. It is an additional electrical certification alongside the ANSI Class E rating; confirm which standard your job requires and use the helmet within an electrical-safety program.
Is it good for hot conditions, or should I get the Vertex Vent?
The non-vented Vertex runs warmer because it has no vents, which is the trade-off for the electrical, molten-metal, and flame protection. If cooling matters more and there is no electrical hazard, the ventilated Vertex Vent (Class C) is the better pick.
Should I retire it after an electrical contact or impact?
Yes. Retire and replace the helmet after any significant impact or any electrical contact, even if it looks intact, and follow Petzl's service-life guidance. Inspect the shell, suspension, and chinstrap before every use.
Does meeting EN 12492 make it ANSI Type II?
No. The Vertex meets the EN 12492 mountaineering standard, which includes some multi-directional testing, but its ANSI rating is Type I, for top impact. If you specifically need ANSI Type II lateral protection, choose a Type II helmet.
Written by Steven Eaton, WC Safety Editorial. Specifications sourced from Petzl published data and the ANSI/ISEA Z89.1 standard. Compare the range in safety helmets.
WC Safety is an independent PPE retailer; no paid placement. A Class E helmet is supplementary head protection tested to 20,000 V; it does not replace de-energizing, rated electrical PPE, fall protection, or safe work practices.
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