SIR SAFETY VERTEX Safety Helmet - Electrical Insulation

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Size One size

One size

Sir Safety Size Chart

Sir Safety Size Guide

How to Measure

A – Height: Stand straight, barefoot, and measure total body height.

B – Chest: Wrap the tape around the fullest part of your chest, keeping it horizontal.

C – Waist: Measure around the natural waistline, just above your hips.

SIR SAFETY TROUSERS Size Table (cm)

*Tip:* Measure over light clothing; if you’re between sizes, choose the larger.

Size	Height (A)	Chest (B)	Waist (C)
XXSNL 42 / BE 36	154–158	86–90	74–78
XSNL 44 / BE 38	158–162	90–94	78–82
SNL 46 / BE 40	162–166	94–98	82–86
MNL 48 / BE 42	166–170	98–102	86–90
M+NL 50 / BE 44	170–174	102–106	90–94
LNL 52 / BE 46	174–178	106–110	94–98
XLNL 54 / BE 48	178–182	110–114	98–102
XL+NL 56 / BE 50	182–186	114–118	102–106
2XLNL 58 / BE 52	186–190	118–122	106–110
2XL+NL 60 / BE 54	190–194	122–126	110–114
3XLNL 62 / BE 56	194–198	126–130	114–118
3XL+NL 64 / BE 58	198–204	130–134	118–122

SIR SAFETY Functional Clothing – Size Table (cm)

Size	Height	Chest	Waist
XS	148–156	84–90	72–78
S	156–164	90–96	78–84
M	164–172	96–102	84–90
L	172–180	102–108	90–96
XL	180–188	108–114	96–102
2XL	188–196	114–120	102–108
3XL	196–204	120–126	108–114

SIR SAFETY Winter Knitwear – Size Table (cm)

Size	Height	Chest
XS	148–156	84–90
S	156–164	90–96
M	164–172	96–102
L	172–180	102–108
XL	180–188	108–114
2XL	188–196	114–120
3XL	196–204	120–126

SIR SAFETY Summer Shirts – Size Table (cm)

Size	Height	Chest
XS	148–156	78–84
S	156–164	84–90
M	164–172	90–96
L	172–180	96–102
XL	180–188	102–108
2XL	188–196	108–114
3XL	196–204	114–120

SIR SAFETY Weatherproof Clothing – Size Table (cm)

Size	Height	Chest
XS	148–156	84–90
S	156–164	90–96
M	164–172	96–102
L	172–180	102–108
XL	180–188	108–114
2XL	188–196	114–120
3XL	196–204	120–126

SIR SAFETY Disposable Chemical Protective Clothing – Size Table (cm)

Size	Height	Chest
M	164–172	96–104
L	172–180	104–112
XL	180–188	112–118
2XL	188–196	118–126
3XL	196–204	126–132

SIR SAFETY Women – Size Table (cm)

Size (EU)	Height	Chest	Waist
XS (36)	154–172	78–84	60–65
S (38)	154–172	82–88	64–69
M (40)	158–166	86–92	68–73
M+ (42)	158–176	90–96	72–77
L (44)	162–180	94–100	76–81
XL (46)	162–180	98–104	80–85
XL+ (48)	166–184	102–108	84–89
XXL (50)	170–188	106–112	88–93
XXL+ (52)	170–188	110–116	92–97
XXXL (54)	170–188	114–120	96–101
XXXL+ (56)	170–188	118–124	100–105

Ordering for a crew? Add your VAT number and this boot drops to business pricing, even at quantity one.

EN 397 (Industrial safety helmets)EN 50365 (Electrically insulating helmets for live working)EN 12492 (Mountaineering helmets)

Description

SIR SAFETY VERTEX Safety Helmet - Electrical Insulation

The SIR SAFETY VERTEX Safety Helmet offers advanced protection for professionals working in challenging environments, especially where electrical hazards or heights are involved. Constructed from durable ABS, polycarbonate, and high-strength polyester, the helmet provides reliable resistance against impacts, flames, and electrical risks. Its innovative DUAL chin strap adapts to multiple work conditions, and a comfortable six-point fabric harness ensures a secure, ergonomic fit. Perfect for tasks at height or on the ground, this helmet combines safety, compliance, and maximum comfort for all-season use.

Key Features

Material: ABS, polyamide, polycarbonate, high-strength polyester, polyethylene
Fabric harness with six-point fastening for maximum comfort and stability
DUAL chin strap: Easily modifies strength for adaptability between height and ground work
Closed outer shell for electrical, flame, and molten metal protection
CENTEFIT adjustment: Ensures centred fit with lateral wheels
FLIP&FIT system: Allows low headband position and easy storage/transport
Shock absorption by deformation of the outer shell
Lightweight: 490g
Headband range: 53-63 cm
Complies with Regulation (EU) 2016/425

Certification

This helmet is certified to EN 397, EN 50365 CE, and EN 12492 standards, ensuring excellent protection for industrial, electrical, and mountaineering environments.

EN 397 (Industrial Safety Helmets): Helmet is tested for shock absorption, resistance to penetration, and offers protection against molten metal, lateral deformation, and flames.
EN 50365 (Electrically Insulating Helmets for Live Working): Suitable for use in low voltage environments up to 1000V AC and 1500V DC, protecting workers from electrical hazards.
EN 12492 (Mountaineering Helmets): Ensures protection against impacts and penetration from above, as well as retention system strength for work at height.

EN 397
- Shock Absorption: Helmet absorbs impact energy to protect the wearer’s head.
- Puncture Resistance: Protects against falling or sharp objects.
- Molten Metal Splash: Certified for protection against accidental contact with molten metal (MM optional requirement).
- Flame Resistance: Shell and harness materials resist ignition and the spread of flames.
EN 50365
- Electrical Insulation: Protects users working with or near low voltage installations.
- Dielectric Strength: Withstands electrical current as specified by the standard.
EN 12492
- Impact & Penetration: Helmet reduces risks from falling objects, even during activities at height.
- Chin Strap Strength: Enhances retention and safety while climbing or working in elevated locations.

Specifications Table

Collection	Helmet
Flame Retardant	Yes
Chemical Resistant	No
High Visibility	No
EN Standard	EN 397, EN 50365, EN 12492
Seasonality	All-Season
Color	White
Gender	Unisex
Head Protection Type	Height Work Helmet
Shell Material	ABS
Harness Material	Textile
Adjustment	Ratchet
Chinstrap Attachment	6-Point
Optional Requirements	Molten Metal Splash (MM)
Helmet Features	Non-Ventilated
Head Circumference Range	53-63 cm
Weight	490g

Instructions and Care

Always wear the helmet together with other work-positioning equipment for safety during tree climbing and work at height.
Carefully read and follow the user instructions provided with the product.
Before use, check the helmet for any damage or wear; replace immediately if compromised.
Store in a cool, dry place away from direct heat sources.
To clean, use warm soapy water only and rinse with clear water; avoid solvents.

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Specifications

Certification EN 397 (Industrial safety helmets) EN 50365 (Electrically insulating helmets for live working) EN 12492 (Mountaineering helmets) Sizes One size – One size Season All-Season

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