The Long and Short of It: Choosing Between 35" and 50" Arc Flash Coats

When building an arc flash safety program, most managers focus on the "Cal Rating." While ensuring you meet the NFPA 70E requirement is the first priority, the physical design of your gear determines how safely and efficiently your team actually works.

With our latest addition of Stanco Temp-Test® coats in both 35-inch and 50-inch lengths, here is how to decide which silhouette is right for your facility.

1. The 35-Inch "Standard" Coat: Built for Mobility

The 35-inch coat, like the TT40-635 (CAT 4) or the TT25-635 (CAT 3), is the most common choice for workers who are constantly on the move.

• Best Paired With Bibs: This length is designed to be worn specifically with bib overalls, such as the TT40-670.

• Range of Motion: Because it ends just below the waist, it allows for deep bending, kneeling, and climbing without the fabric bunching at the knees.

• Task Versatility: Ideal for intricate maintenance where you need to move in and out of tight enclosures.

2. The 50-Inch "Economy" Coat: Built for Speed

The 50-inch coat, found in our TT40-650 and TT25-650 models, is often referred to as an "Economy" or "Quick-Don" solution.

• Extended Coverage: The extra length provides thermal protection for the upper legs, which can sometimes remove the need for heavy bib overalls for short-duration tasks.

• Rapid Deployment: These coats are perfect for switching operations or "look but don't touch" inspections where a worker needs to get in and out of the PPE zone quickly.

• Closure Systems: These models utilize a 2" Velcro front closure, making them much faster to put on over daily work clothes compared to full suits.

3. Comfort Without Compromise: UltraSoft® Technology

Regardless of the length you choose, both styles in our new collection utilize Westex UltraSoft® fabric.

• Breathable Durability: The 88% cotton / 12% nylon blend is twice as abrasion-resistant as standard FR cotton but stays soft against the skin.

• Permanent Protection: The flame resistance is inherent to the fabric, so your CAT 3 or CAT 4 rating won't wash out after a few cycles in the laundry.

The Verdict

• Choose 35-inch if your team performs active, long-duration maintenance that requires bib overalls and maximum leg mobility.

• Choose 50-inch if you need a "station" coat for quick tasks or switching operations where speed and coverage are the top priorities.