Support lookup
Start with the closest match below. Detailed compatibility, parts tables, and troubleshooting stay farther down the page so the first screen stays easy to scan.
ArcOne replacement lens
The S240 is a 2 x 4 1/4 in. fixed-shade auto-darkening lens family. Match the shade number on the lens and confirm the hood accepts a horizontal 2 x 4 lens before replacing the cartridge.
ArcOne lens support
ArcOne lens support
The S240 is listed here as a 2 x 4 1/4 in. fixed-shade auto-darkening lens family. Match the exact shade number and verify that the hood accepts a horizontal 2 x 4 lens before ordering.
Light State: Shade 2.5
Fixed
Sensitivity
Tig Rating Amps: 50
2 Sensors
Viewing Area 5.25 sq. in.
Mount Horizontal
Dimensions 2" x 4 1/4" x .2"
True Color
High Definition
Shade 8 - S240-8 View on Amazon
Shade 9 - S240-9 View on Amazon
Shade 10 - S240-10 View on Amazon
Shade 11 - S240-11 View on Amazon
Shade 12 - S240-12 View on Amazon
3 Year Manufacturer Warranty
Warranty/Technical Support Contact: 1-800-223-4685 – ext. 3
Uses Jackson 370 Headgear - 20696 Buy link unavailable.
Hard Hat Adapter - 3002645 Buy link unavailable.
Blade Hard Hat Adapter - 3002634 Buy link unavailable.
Uses Jackson 370 Headgear - 20696 Buy link unavailable.
Hard Hat Adapter - 3002645 Buy link unavailable.
Blade Hard Hat Adapter - 3002634 Buy link unavailable.
Uses Fibre-Metal 3C Headgear - 3C Buy link unavailable.
Hard Hat Adapter - Speedy Loop 5000 Buy link unavailable.
Shop tip: helmet flicker often starts with cover lens condition, blocked sensors, weak batteries, or shade setting before cartridge replacement.
The most useful nearby paths, kept short for fast scanning.
Confirm the fixed shade, 2 x 4 lens opening, mounting orientation, and hood model before replacing an auto-darkening cartridge.