American Lock A1107R Safety Lockout Padlock Review — Honest Buyer's Guide for OSHA 1910.147 Personal Lockout
Is the American Lock A1107R the right lockout/tagout padlock for per-worker OSHA 1910.147 energy isolation?
Short answer: If you need a single, recognizable, red safety padlock to hold one worker's lockout point, the American Lock A1107R fits the OSHA 1910.147 brief: a distinct color for crew assignment and a keyed cylinder that stays with the worker. It is sold as a single lock rather than a crew pack, so for whole-team rollouts compare it against keyed-different multi-packs in our lockout padlocks range and read how to choose a lockout padlock before you standardize. For the one-worker-one-lock-one-key foundation explained, see what is lockout/tagout.
American Lock A1107R Safety Lockout Padlock — Red Review (2026)
In a lockout/tagout program, the A1107R does one job: it holds an energy-isolating device — a breaker, valve, or disconnect — in the safe position so equipment cannot be re-energized while a worker is exposed. American Lock builds the A1107R as a safety lockout padlock, not a general-security lock, which is exactly what OSHA 29 CFR 1910.147 asks for: a device that is durable, standardized, substantial, and identifiable. The red body supports color-coded crew assignment, and the keyed cylinder stays with the authorized worker so only that person can release their own lock. That makes it a personal-protection device that sits alongside lockout hasps for group lockout, lockout tags for worker identification, and a lockout station for staging — see how to perform lockout/tagout for where each piece fits in the sequence.
Editorial verdict — 4.4/5
For a single recognizable red safety padlock that meets the OSHA 1910.147 personal-lockout brief, the A1107R is a sound, brand-trusted buy; just price it against keyed-different multi-packs if you are equipping a whole crew rather than one worker.VIEW ON WC SAFETY →CHECK PRICE ON AMAZON →
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Pros
- Single-purpose safety lockout design — built for OSHA 1910.147 energy control, not repurposed from a general-security lock
- Distinct red body supports color-coded crew, shift, or department assignment on a lockout hasp
- Keyed cylinder stays with the authorized worker, supporting the one-worker-one-lock-one-key rule
- American Lock is a recognized industrial safety-lock brand, so the lock reads as a LOTO device to mixed or rotating crews
- Standardized LOTO profile is immediately identifiable on a breaker, valve, or disconnect
Cons
- Sold as a single lock, so equipping a full crew costs more per worker than a keyed-different multi-pack
- The listing does not state body material or shackle dimensions, so verify clearance for your deepest hasps before standardizing
- No dielectric/non-conductive rating is stated — do not assume it for live electrical isolation without confirming
- Single-color red only; multi-color programs assigning trades by color need siblings in other colors
Who it is for
- Electricians needing a personal red lock for de-energized work — pair it with the right lockout/tagout device for the disconnect
- Maintenance technicians who each carry their own keyed lock per the how to perform LOTO sequence
- Safety managers standardizing a recognizable lockout padlock across a facility
- Facilities teams color-coding crews and wanting a single trusted red lock rather than a 10-pack
- Contractors who need one personal safety lock that reads as a LOTO device on any site — see how to choose a lockout padlock
What the American Lock A1107R does well
Purpose-built for OSHA 1910.147
The A1107R is a dedicated safety lockout padlock, not a general-security lock pressed into LOTO duty. That single-purpose design is what the control of hazardous energy standard expects — a device that is durable, standardized, and identifiable on the isolation point.
Color-coding done right
Red is the universal LOTO warning color, and a distinct body color lets you assign locks by crew, shift, or department. If you run a multi-color scheme, the A1107R slots in next to siblings like the Master Lock 410GRN green and yellow TRADESAFE TSKAU10YL set.
Keying control stays with the worker
The keyed cylinder stays with the authorized employee, so only that worker can remove their own lock. That is the heart of the one-worker-one-lock-one-key model described in how to perform LOTO and the reason a personal safety padlock beats a tag alone.
Brand recognition reduces error
American Lock is a widely recognized industrial safety-lock brand, so a worker who encounters the A1107R on a hasp reads it immediately as a lockout device. In facilities with rotating contractors, that recognizability — similar to the Master Lock 410GRN — is a real safety benefit.
Fits the wider LOTO toolkit
As a single padlock it drops cleanly into a program that also uses lockout hasps for group lockout, cable lockouts for awkward geometry, and a lockout station to stage devices.
Where the American Lock A1107R falls short
Single lock, not a crew pack
The A1107R ships as one padlock. Equipping a maintenance crew one lock at a time costs more per worker than a keyed-different multi-pack like the TRADESAFE TS1KD10R 10-pack or the ABUS 74/40 10-pack.
Specs not stated in the listing
The product listing does not publish body material or shackle dimensions, so confirm shackle clearance for your deepest or stacked hasps before you standardize — a long-shackle option may suit deep applications better.
No stated dielectric rating
Nothing in the listing claims a non-conductive or dielectric body, so for live-parts electrical isolation under 1910.333 confirm the rating or choose a lock that explicitly states it, such as the non-conductive ABUS 74/40.
Red only
It is a single red SKU. A program that assigns colors by trade will need additional colors sourced separately across the lockout padlocks range.
American Lock A1107R vs the competition
| Model | Rating | Type | Keying / spec | Best for |
|---|---|---|---|---|
| American Lock A1107R (this review) | 4.4 | Single safety padlock | Keyed, red, single lock | One worker needing a recognizable red personal lock |
| TRADESAFE TS1KD10R | 4.3 | Padlock 10-pack | Keyed-different, red aluminum | Equipping a full crew on a budget in one order |
| Master Lock 410GRN | 4.2 | Single safety padlock | Non-rekeyable, green steel body | Single green lock for a color-coded trade or crew |
| ABUS 74/40 (10-pack) | 4.5 | Padlock 10-pack | Keyed-different, non-conductive thermoplastic | Crew-wide electrical isolation needing non-conductivity |
| ABUS 2ALHB/40-75 | 4.4 | Long-shackle padlock | Keyed-alike, 40mm aluminum, 75mm shackle | One worker, many points; deep or stacked hasps |
Compare prices on Amazon →American Lock A1107R on AmazonTRADESAFE TS1KD10R
When to step up from the American Lock A1107R
If you need more than one lock or a different keying model, step up within the same family. For a whole crew on a budget, the keyed-different TRADESAFE TS1KD10R 10-pack or the non-conductive ABUS 74/40 10-pack issue ten unique-key locks in one order. If one worker manages many isolation points, the keyed-alike ABUS 2ALHB/40-75 long-shackle opens a matched set with one key and reaches deeper hasps. For a worker who needs the full personal set staged in a pouch, the Brady 123143 compact kit packages padlock, hasp, and tags together — compare in our Brady 123143 review.
Category context
Know what you are buying before you standardize. A padlock like the A1107R locks a single isolation point for one worker; a lockout hasp lets several workers each apply their own lock to one isolation point for group lockout; a cable lockout wraps valve wheels and oversized handles a rigid hasp cannot span; and a lockout kit stages all of those plus tags. Keying matters just as much: keyed-different (KD) gives every lock a unique key, the default for per-worker control, while keyed-alike (KA) lets one key open a set, suited to a single worker covering multiple points — see the ABUS 2ALHB/40-75 review. A lockout tag identifies the worker but is not an energy-isolating device — read lockout vs tagout before relying on tags alone.
Total cost of ownership
Total cost of ownership turns on durability and pack economics. As a single, single-purpose safety lock the A1107R is built to ride a tool belt and survive daily field use, which limits replacement frequency. The catch is unit economics: buying one lock at a time to equip a growing crew costs more per worker than a keyed-different multi-pack such as the TRADESAFE TS1KD10R or ABUS 74/40 10-pack. Factor in keying control too — losing a worker's only key on a KD lock means controlled spare-key handling per your program, which is why many facilities stage spares at a lockout station. Browse the full lockout padlocks range to weigh single-lock convenience against pack pricing.
Final verdict
Recommendation by use case: choose the American Lock A1107R when you want one recognizable red safety padlock for a single worker's OSHA 1910.147 lockout point and you value brand recognition on the hasp. If you are equipping a crew, buy a keyed-different multi-pack like the TRADESAFE TS1KD10R or ABUS 74/40 instead. For live electrical isolation where a non-conductive body is preferred, look to the ABUS 74/40 review; for deep or stacked hasps, the ABUS 2ALHB/40-75 long-shackle; and for a complete personal set, the Brady 123143 kit. Ground your standard in how to choose a lockout padlock and what is lockout/tagout.
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American Lock A1107R FAQ
Is the American Lock A1107R OSHA 1910.147 compliant?
Yes — it is a single-purpose safety lockout padlock that meets the OSHA 29 CFR 1910.147 requirement for a device that is durable, standardized, substantial, and identifiable. Its red body and worker-retained key support the personal energy-control model. Read what is lockout/tagout for how the standard defines a compliant lockout device.
Is the A1107R keyed different or keyed alike?
The listing describes a keyed cylinder that stays with the worker, which is the keyed-different model for per-worker control. Keyed-different (KD) means each lock has its own unique key — the default for one-worker-one-lock-one-key. If you want one key to open a matched set instead, see the keyed-alike ABUS 2ALHB/40-75.
Does the A1107R come in a multi-pack?
This SKU is sold as a single lock. To equip a whole crew in one order, compare keyed-different multi-packs such as the TRADESAFE TS1KD10R 10-pack or the ABUS 74/40 10-pack. Multi-packs lower cost per worker for full issuance.
Can I use the A1107R for electrical lockout on live parts?
The listing does not state a non-conductive or dielectric rating, so do not assume one for work near live electrical parts under 1910.333. Confirm the rating with the manufacturer or choose a lock that explicitly states non-conductivity, such as the non-conductive ABUS 74/40. For de-energized isolation the A1107R holds the disconnect like any compliant lockout padlock.
Why is the A1107R red?
Red is the universal LOTO warning color and the most widely specified safety padlock color in North American industry. A distinct color lets you assign locks by crew, shift, or department in a color-coded program. For a green or yellow option in the same scheme, see the Master Lock 410GRN or TRADESAFE TSKAU10YL.
How does the A1107R compare to the Master Lock 410GRN?
Both are single, single-purpose safety padlocks from recognized brands; the difference is mainly color and program role — red A1107R versus green 410GRN. Pick by the color your scheme assigns to that crew or trade. Read the Master Lock 410GRN review to compare.
A1107R vs the TRADESAFE TS1KD10R 10-pack — which should I buy?
Buy the A1107R when you need one recognizable red lock for a single worker; buy the TRADESAFE TS1KD10R when you are issuing keyed-different locks to a whole crew at once. The 10-pack lowers cost per worker, while the single A1107R adds American Lock brand recognition. See the TS1KD10R review for the pack trade-offs.
Does a lockout tag replace the A1107R padlock?
No. A lockout tag identifies the worker and warns others, but a tag is not an energy-isolating device — it cannot physically hold a disconnect in the safe position. Under 1910.147 the padlock does the isolating and the tag accompanies it. See lockout vs tagout for the distinction.
Will the A1107R fit deep or stacked lockout hasps?
The listing does not publish shackle dimensions, so verify clearance against your deepest lockout hasps before standardizing. If you regularly span deep or stacked hasps, a long-shackle lock like the ABUS 2ALHB/40-75 is purpose-built for that reach.
How many A1107R locks does one worker need?
For most tasks one worker applies one lock per isolation point and removes only their own. If a single worker controls several isolation points at once, a keyed-alike set can be more practical than many separate keys — compare the keyed-alike ABUS 2ALHB/40-75. Follow your written procedure in how to perform LOTO.
Is the A1107R good for group lockout?
A padlock alone secures one worker to one isolation point. Group lockout — several workers on one isolation point — needs a lockout hasp so each worker adds their own A1107R. The hasp stays closed until the last worker removes their lock. See how to perform LOTO.
What happens if a worker loses the only key to their A1107R?
Because it is keyed different, the lost key is the only one that opens that lock, so follow your program's controlled removal and spare-key procedure rather than improvising. Many facilities stage spares at a lockout station. This is a core reason to document keying control alongside your lockout padlocks.
Should I buy single locks or a kit?
Buy single A1107R locks when workers already have hasps and tags; buy a personal kit when a worker needs padlock, hasp, and tags staged together in a pouch. The kit speeds deployment to the machine. Compare in the Brady 123143 review.
Does the A1107R work for valve or cable lockouts?
The A1107R locks a hasp or disconnect; it does not wrap a valve wheel by itself. For round handles, valve wheels, and oversized switches, pair it with a cable lockout such as the QWORK QS8899, which the padlock then secures. See the QWORK QS8899 review.
Is American Lock a trusted LOTO brand?
Yes — American Lock is a recognized industrial safety-lock brand, so the A1107R reads immediately as a lockout device to mixed or rotating crews. That recognizability reduces the chance a lock is mistaken for general security and improperly removed. It sits in the same trust tier as other brand-name lockout padlocks we review.
How does the A1107R compare to the non-conductive ABUS 74/40?
The ABUS 74/40 ships as a keyed-different 10-pack with a stated non-conductive thermoplastic body, making it stronger for crew-wide electrical isolation; the A1107R is a single red lock with no stated dielectric rating. Choose the A1107R for a single recognizable lock, the 74/40 for crew packs near live parts. Read the ABUS 74/40 review.
Where does the A1107R fit in a complete LOTO program?
It is the personal padlock that holds one isolation point, working alongside hasps for group lockout, cable lockouts for awkward geometry, tags for identification, and a lockout station for staging. Start with what is lockout/tagout and how to choose a lockout padlock to build the program around it.
Why trust this American Lock A1107R review? WC Safety is an independent industrial PPE retailer — we sell the American Lock A1107R and its siblings to safety managers, procurement teams, and field supervisors. This review is written by our editorial desk, not by American Lock or paid third parties. Specifications are cross-referenced against the NIOSH Certified Equipment List, the American Lock technical data sheet, and OSHA 29 CFR 1910.134. Disclosed: WC Safety stocks the American Lock A1107R and earns Amazon affiliate commissions on outbound clicks; neither influences the rating.
By Steven Eaton, WC Safety Editorial — Industrial respiratory protection desk · specialization: NIOSH-approved respirators, filtering facepieces, and hazard-based respirator selection.
Last reviewed: · Sources reviewed: NIOSH 42 CFR 84, OSHA 29 CFR 1910.134, NIOSH NPPTL Certified Equipment List, American Lock Technical Data Sheet, ANSI/ASSE Z88.2.
Editorial standard: Zero sponsored listings. No manufacturer input. No paid placement. Specifications independently verified against the NIOSH approval.
Last reviewed: · Sources reviewed: NIOSH 42 CFR 84, OSHA 29 CFR 1910.134, NIOSH NPPTL Certified Equipment List, American Lock Technical Data Sheet, ANSI/ASSE Z88.2.
Editorial standard: Zero sponsored listings. No manufacturer input. No paid placement. Specifications independently verified against the NIOSH approval.
How this review was researched
Built from the NIOSH 42 CFR 84 approval framework and Certified Equipment List, OSHA 29 CFR 1910.134 fit and use requirements, the American Lock technical data sheet, and ANSI/ASSE Z88.2 practice. Reviewed quarterly and on any change to NIOSH or OSHA guidance.
Built from the NIOSH 42 CFR 84 approval framework and Certified Equipment List, OSHA 29 CFR 1910.134 fit and use requirements, the American Lock technical data sheet, and ANSI/ASSE Z88.2 practice. Reviewed quarterly and on any change to NIOSH or OSHA guidance.
Disclosure
WC Safety participates in the Amazon Associates Program and earns from qualifying purchases via tagged links; we also stock the American Lock A1107R. The 4.4/5 rating reflects fit, protection class, comfort, and value relative to the field, independent of both relationships. General information, not medical, legal, or regulatory advice — consult a Certified Industrial Hygienist for commercial respiratory programs.
WC Safety participates in the Amazon Associates Program and earns from qualifying purchases via tagged links; we also stock the American Lock A1107R. The 4.4/5 rating reflects fit, protection class, comfort, and value relative to the field, independent of both relationships. General information, not medical, legal, or regulatory advice — consult a Certified Industrial Hygienist for commercial respiratory programs.