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3M Protecta 1161421 Comfort Full Body Harness, Medium/Large (Back D-Ring, Construction-Grade Fall Arrest)
$79.99
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — 3M Protecta 1161421 Comfort Full Body Harness, Medium/Large Editorial assessment by the WC Safety Editorial Team, based on published 3M specifications and category fit. W...
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — 3M Protecta 1161421 Comfort Full Body Harness, Medium/Large
Editorial assessment by the WC Safety Editorial Team, based on published 3M specifications and category fit. We did not laboratory-test this product.
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3M Protecta 1161421 Comfort Full Body Harness, Medium/Large (Back D-Ring, Construction-Grade Fall Arrest) Overview
The 3M Protecta 1161421 Comfort Full Body Harness, Medium/Large is a value-priced, construction-grade harness for general fall-arrest work at height. It is the body-wear half of a personal fall arrest system and is designed around a dorsal (back) D-ring — the connection point OSHA 1926.502 and ANSI Z359 require for arresting a fall. A full-body harness like this one distributes arrest forces across the shoulders, thighs, and pelvis; a body belt may never be used for fall arrest.
This harness covers the Medium/Large sizing band, making it a common stocking size for mixed crews. To work as intended, the dorsal D-ring must sit centered between the shoulder blades and all straps must be snug. Browse the full full body harnesses range to match other size bands, or step back to the complete fall protection category to build a compliant system from the ground up.
A harness alone does not stop a fall. Connect the dorsal D-ring to a self retracting lifeline or a shock-absorbing lanyard, and tie that off to an anchorage that meets the OSHA 5,000 lb (per worker) requirement or a certified anchorage under a qualified person. Shop compatible energy-absorbing connectors in lanyards so your fall distance and clearance are accounted for before the first climb.
Retire-after-arrest: any harness, lanyard, or lifeline that has arrested a fall must be removed from service and destroyed — it is single-use once loaded. Inspect this harness before every use for cuts, burns, chemical damage, distorted hardware, and a deployed/loaded impact indicator, per the manufacturer and 3M user instructions. This page links throughout the fall protection catalog so you can confirm every component before you buy.
What It Is Built For
| Use case | Fit | Buyer guidance |
|---|---|---|
| General construction fall arrest | Strong fit | Dorsal D-ring harness intended for personal fall arrest on construction sites under OSHA 1926.502; connect to a compliant lanyard or SRL. |
| Medium to Large worker fit | Strong fit | Covers the Medium/Large sizing band; confirm the dorsal D-ring centers between the shoulder blades and straps cinch snug. |
| Maintenance, roofing, and general industry work at height | Good fit | Suitable as the harness in a PFAS for general industry under 1910.140; pair with the correct connector and anchorage for the task. |
| Work positioning or rebar climbing | Limited fit | This is a fall-arrest harness; positioning work needs side/hip D-rings. Compare positioning models in full body harnesses before buying. |
| Arc flash or hot-work exposure | Not a fit | Not an arc-rated harness. Choose an arc-flash-specific model when electrical or flame hazards are present. |
| Leading-edge / sharp-edge falls | Depends on connector | Edge protection is provided by a leading-edge rated lifeline, not the harness; select an edge-rated SRL from self retracting lifelines. |
Fall protection is life-safety equipment. A personal fall arrest system must limit free fall and arrest forces under OSHA 1926.502 / 1910.140 and ANSI Z359: use a full-body harness (never a body belt for fall arrest) with a compatible shock-absorbing lanyard or self-retracting lifeline and an anchorage rated 5,000 lb per worker (or engineered to a 2:1 safety factor). Inspect every component before each use, immediately retire anything that has arrested a fall or shows damage, and work to a documented rescue plan. Browse fall protection and full-body harnesses.
Pros & Cons
Pros
- Dorsal (back) D-ring built for OSHA 1926.502 / ANSI Z359 personal fall arrest
- Full-body design distributes arrest forces across shoulders, thighs, and pelvis
- Medium/Large band covers a wide range of crew sizes
- Value-priced construction-grade option from a trusted 3M Protecta line
- Integrates with standard shock-absorbing lanyards and self-retracting lifelines
Cons
- Single back D-ring is for fall arrest only, not work positioning
- Not arc-rated; unsuitable for electrical/hot-work hazards
- Requires a separately purchased compliant lanyard or SRL plus a 5,000 lb anchorage
- Must be retired immediately after arresting any fall
How It Compares
Within the 3M Protecta and full body harnesses family, the 1161421 is the entry Comfort harness sized Medium/Large. Compare it to its closest siblings to pick the right model and size:
| Model | Line / focus | Size | Best for |
|---|---|---|---|
| 3M Protecta 1161421 (this page) | Comfort — general fall arrest | Medium/Large | Value construction harness, back D-ring |
| 3M Protecta Comfort Construction | Comfort — construction build | Medium/Large | Construction-focused features in the same comfort line |
| 3M DBI-SALA ExoFit X200 Comfort Vest | Premium — vest-style comfort | Large / X-Large | Upgraded padding and fit for all-day wear |
| 3M DBI-SALA ExoFit X200 Construction Positioning | Premium — positioning | Medium | Adds side D-rings for work positioning |
Need a different size band or a positioning model instead of straight fall arrest? Browse the complete full body harnesses selection, then round out the system with a connector from lanyards or self retracting lifelines.
Specifications
| Brand / Line | 3M Protecta |
| Model | 1161421 |
| Product type | Full body harness (fall arrest) |
| Size | Medium/Large |
| Primary attachment | Dorsal (back) D-ring |
| Intended use | Personal fall arrest system (PFAS) body wear |
| Applicable standards framework | OSHA 1926.502 / 1910.140; ANSI Z359 |
| Required system partners | Shock-absorbing lanyard or SRL + compliant anchorage |
| Service life note | Retire from service after any fall arrest |
Related Resources
fall protection full body harnesses lanyards self retracting lifelines
Frequently Asked Questions
What size worker does the 3M Protecta 1161421 fit?
This harness is the Medium/Large size band. Confirm fit by adjusting all straps snug and checking that the dorsal D-ring sits centered between the shoulder blades. If a worker falls outside this band, choose another size in our full body harnesses collection.
Is the 1161421 a complete fall protection system on its own?
No. It is the harness component only. A complete personal fall arrest system also needs a shock-absorbing lanyard or self-retracting lifeline plus a compliant anchorage. Shop connectors in lanyards and self retracting lifelines.
Which D-ring does this harness use for fall arrest?
It uses a dorsal (back) D-ring, the attachment point OSHA 1926.502 and ANSI Z359 specify for fall arrest. Connect your lanyard or lifeline only to that back D-ring for arresting a fall.
Can I use this harness with a body belt instead of a harness strap?
No. OSHA prohibits body belts for fall arrest. A full-body harness like the 1161421 is required because it spreads arrest forces across the body. Browse all full body harnesses for compliant options.
What anchorage does this harness require?
OSHA requires anchorages used for personal fall arrest to support 5,000 lb per worker attached, or be designed by a qualified person with a safety factor of at least two. The harness connects to that anchorage through a lanyard or lifeline from our fall protection range.
Do I have to retire the harness after a fall?
Yes. Any harness, lanyard, or lifeline that has arrested a fall must be removed from service and destroyed immediately. Fall-arrest gear is single-use once loaded. Replace it from our full body harnesses collection.
Is the 1161421 suitable for work positioning?
No. It is built for fall arrest with a single back D-ring. Work positioning needs side/hip D-rings. Compare positioning-equipped models in full body harnesses if your task requires hands-free leaning.
Is this harness arc-flash rated?
No. The 1161421 is a standard construction-grade fall-arrest harness and is not arc-rated. For electrical or hot-work hazards, select an arc-flash-specific harness from the fall protection category.
What lanyard should I pair with this harness?
Pair it with a shock-absorbing (energy-absorbing) lanyard or an SRL sized for your fall clearance. Browse compatible connectors in lanyards and self retracting lifelines, and confirm your fall distance before use.
How do I inspect the 1161421 before use?
Inspect before every use for cut, frayed, or burned webbing, chemical or UV damage, distorted or corroded hardware, and any deployed impact/load indicator. Follow the 3M user instructions; if anything fails inspection, remove it from service and replace it from our full body harnesses range.
Does this harness meet OSHA requirements?
A full-body fall-arrest harness with a dorsal D-ring is the harness type OSHA 1926.502 and 1910.140 call for in a personal fall arrest system. Compliance depends on the full system and proper use, not the harness alone; build the rest from our fall protection catalog.
How does the 1161421 compare to the ExoFit X200 harnesses?
The 1161421 Comfort is the value, general-purpose fall-arrest option; the DBI-SALA ExoFit X200 line adds vest-style padding and, in the positioning model, side D-rings. See the comparison table above and the full full body harnesses collection to match your budget and task.
Written by Steven Eaton, WC Safety Editorial. Specifications sourced from 3M published data. Compare the range in full-body harnesses.
WC Safety is an independent PPE retailer and Amazon Associate; no paid placement. Match the product to your specific hazard and follow your site PPE program.
Brand / Vendor
3M
Model / SKU
1161421
Product Type
Full Body Harnesses
Price
$79.99 (Amazon)
Rating
5.0 / 5 — 1 reviews
Availability
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