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Optrel E684 Welding Helmet

SKU: OP-1006.500
Regular price $777.00 inc. GST

Optrel E684 Welding Helmet

The optrel e684 is the perfect welding protection gear for demanding joining processes of aluminium, nickel-chromium alloys, special metals as well as steel.

Thanks to the infinitely variable shade range of SL 5 to SL 13 the optrel e684 is is suitable for all electric arc welding as well as grinding processes.

The optrel e684 is the welder‘s loyal companion, especially for industry applications such as vehicle & railway construction, agricultural & construction machinery, steel/machinery/tank/vessel/plant construction, pipeline & tube making, as well as shipbuilding and offshore.

Do not settle for anything less!

Adaptive Shade Autopilot

Set it and forget it.

The adaptive shade level control automati- cally adjusts the perfect shade level.
An additional sensor that measures the arc intensitiy makes this autopilot function work. Therefore you always keep control of the appropriate trajectory regardless of which actual welding paramater is set. This allows you to stay focused on what really matters: Your welding process!

Cooling Helmet Design

Keep cool, even when the heat is on.

Reflecting light and heat, the optrel e684’s special silver helmet keeps the welder’s head cooler by 23% compared to other unpainted helmets. In extreme environments, welders can work longer and be more comfortable in the long term.

High Definition Viewing

Superior viewing at every angle.

Like viewing a high definition television, the optrel e684’s special HD lens provides a true color view to the welder. Its class 1 angular dependency allows welders to see the clearest, crispest view possible, enabling welders to concentrate more accurately on their weld.

Wellness for the Eyes

Groundbreaking technology prevents / re- duces eye fatigue automatically.

Unlike other ADF lenses that rapidly re- turn to light, the optrel e684’s Twilight ADF Technology restores light more naturally, presenting a smooth transition to the eyes. This exclusive technology reduces eye fatigue on welders who are continuously welding, enabling them to work longer and safer.

Daily Multi-Purpose use

Darkening levels from 5 to 13 cover the majority of welding applications and with a protection level 4 in its general mode, the welder has a bright and well-lit view of the work-place. This feature predestinates the optrel e684 for grinding jobs as well.


Type description

Fully automatic welding helmet with true colour definition, auto darkening filter with shade level range of 5 – 9 / 9 – 13

Shade level (SL)

SL 4/5-13


Adaptive shade autopilot for the range of SL 5 - 13 with the option of an individual calibration of +/- 2 shade levels.

Manual mode

Infinitely variable outside operability for two shade ranges, SL 5 - 9 and 9 -13.


Infinitely variable, newly with “Super High” sensitivity setting range.

Grinding mode

Shade Level 4

Twilight technology

Patented delay time control to open the Auto Darkening Filter, adjustable from 0.1 to 2.0 seconds.

Dimension of ADF
( Auto Darkening Filter)

90x110x7mm / 3,55x4,33x 0,28” 50x100mm / 1,97x3,94” (Viewing area)

Power supply

solar cells, 2pcs LI-batteries 3V exchangeable (CR2032)

Operating time batteries

Approx. 3000 hours (operating)
Three sensors.

Adjustable arc detection angle by means of a sensor slider.

Eye protection  ultraviolet/infrared protection

maximum at any shade setting

Switching Time

Light to dark:

0,170 ms at room temperature 0,110 ms at 55°C / 131°F

Dark to light:

0.1s to 2.0s with patented twilight technology

Classification EN379

Optical class: 1

Scattered light: 1

Homogeneity: 1

Angular dependence: 1

Shape stability

Welding mask: up to 220°C / 428°F

Front cover lens: up to 137°C / 279°F

Protection for ADF

Spherically shaped front cover lens with patented seal, which makes it suitable for overhead welding.


Mask colour


Operating temperature

-10°C to +70°C / 14°F to 158°F

Storage temperature

-20°C to +80°C / -4°F to 176°F


Welding helmet: 500g / 17,637 oz

Application ranges

Any electric arc welding process Electrode Welding (Stick Welding, SMAW) / MIG / MAG (GMAW) / GMAW High melting rate process / Flux Cored Wire Welding / TIG welding (GTAW) / Plasma Arc Welding / Plasmacutting & Oxy-gas Welding

Prohibited for laser welding!

Scope of delivery

Welding helmet, instruction manual, storage bag, batteries, warranty card and one front cover lense


CE, ANSI Z87.1, AS/NZS, EAC, complies with CSA Z94.3


2 years from date of sales for manufacturing and material defects (except batteries)
1 additional year after online registration within the first 6 months.