ABUS 76/40 Plastic-covered Aluminum Core Padlock, 1/4" Shackle dia., 1 37/64 Width

The 76/40 is built for LOTO work: both the body and the shackle are insulated by the plastic covering over the aluminum core, and it follows the one worker, one lock, one key rule, so each padlock ships with a single key rather than a set. It is also key retaining, meaning the key stays captive in the cylinder until the lock is shut, so nobody walks off leaving an energized disconnect unsecured. Automatic locking means you push the shackle home and it locks, no key needed to close it.

Measure the opening before you order. The 76/40 has a 1/4 inch shackle diameter with 3/4 inch of horizontal clearance and 1-1/2 inch of vertical clearance, and the lock body is 1-37/64 inches wide. That 1/4 inch shackle passes the standard hole on most breaker and valve lockout devices, but the 3/4 inch horizontal clearance is the number that decides whether it will span the staple on a heavier hasp. If your hasp needs a bigger bite, this is not the lock.

Keyed alike is one of three keying options on the 76/40, alongside keyed different and master keyed. Keyed alike suits a crew or a bank of cabinets where one key should open every lock. Keyed different is what a lockout program wants, since each worker holds the only key to their own lock. Master keyed gives each lock its own key plus a supervisor key that opens the group, which is the usual choice when a safety manager needs override authority.

Different jobs. The ABUS 76/40 has a solid aluminum core under a plastic cover, so it is light to carry on a belt all day and the body and shackle are insulated, which is what you want on electrical lockout. For gates, exterior chain and weather exposure, a metal body padlock is the usual pick: the Medeco 521 G8R is a weather-tight solid stainless steel body lock, the Medeco 5260 is a brass body with a 7/16 inch shackle, and the Schlage KS23D/KS23F is a brass padlock with a 5/16 inch shackle. Those heavier shackles resist cutting better than a 1/4 inch shackle, but none of them are insulated.

No. The 76/40 uses a fixed 8-pin ABUS cylinder that is rekeyed rather than swapped, so it will not accept a removable core from your existing system. If you are standardizing padlocks onto the same core as the rest of the building, the Sargent 60-858-2 is a removable core padlock with a 2 inch stainless steel shackle and is the one to look at instead.

The ABUS 76/40 is a plastic-covered padlock with a solid aluminum core, and both its body and shackle are insulated, which is what makes it suited to electrical lockout work. Where insulation is not part of the requirement, the Sargent 758 is a key retaining padlock in a US4 satin brass finish, and the Sargent 858 is a non-key retaining padlock with a stainless steel shackle in the same US4 satin brass finish. The Schlage KS23D/KS23F is a brass padlock with a 5/16 inch shackle diameter, against the 1/4 inch shackle diameter on the 76/40.

The ABUS 76/40 is key-retaining, meaning it holds the key until the lock is closed, and it locks automatically when the shackle is pushed home. That behavior is what enforces one worker, one lock, one key. If your procedure instead calls for a lock the key can leave while the shackle is open, the Sargent 858 is a non-key retaining padlock with a stainless steel shackle, and the Sargent 82-856 is a non-key retaining padlock with a 2 inch by 2 inch brass case and stainless steel shackle. The Sargent 758 is key retaining like the 76/40.

The ABUS 76/40 uses a precision 8-pin cylinder and is rekeyable, and it can be ordered keyed alike, keyed different, or master keyed. It is not built around a removable core. If your standard is core interchange across the site, the Sargent 60-858-2 is a removable core padlock with a 2 inch stainless steel shackle, and the Medeco 521 G8R is supplied less pop-out cylinder so you fit the cylinder your system uses.

The ABUS 76/40 is a commercial padlock with a plastic-covered aluminum core body, 1-37/64 inch wide, with 3/4 inch horizontal and 1-1/2 inch vertical shackle clearance. For weather-exposed hardware, the Medeco 521 G8R is a weather-tight padlock with a solid stainless steel body, and the Medeco 54515G XT is an electronic indoor/outdoor padlock, non-key retaining, with a 5/16 inch shackle diameter and cylinder included.

Check the shackle before you swap. The ABUS 76/40 carries a 1/4 inch shackle diameter with 3/4 inch horizontal clearance and 1-1/2 inch vertical clearance. The Schlage KS23D/KS23F uses a 5/16 inch shackle diameter and the Medeco 5260 a 7/16 inch shackle diameter, so a hasp eye or chain link sized to the 1/4 inch ABUS shackle will not necessarily pass the thicker peers.

Ten colors: blue, black, brown, green, grey, orange, red, violet, white and yellow. Each color is available keyed alike, keyed different or master keyed, which is what makes this lock work for color-coded programs, one color per trade, per shift or per department, with the keying scheme chosen independently of the color.

Rekeying is supported on the 76/40, so when an employee leaves or a key goes missing you can recut the cylinder instead of replacing the lock. The cylinder is an 8-pin, and ABUS states 200,000 guaranteed keyed different bittings on it, which is what lets a large facility keep expanding a keyed different or master keyed system without running into duplicate keys.

Yes, and that is deliberate. The 76/40 is key retaining, so the key cannot be withdrawn until the shackle is closed and locked. On a lockout program that is the point: a worker cannot pocket the key and leave the disconnect unlocked. If you want the opposite behavior, a key you can pull while the lock hangs open on a hasp, look at a non-key-retaining padlock such as the Sargent 858 or the Sargent 82-856.

The 76 Series is offered with nine different shackle options, so if the standard 1-1/2 inch vertical clearance will not reach around your chain or through a thick hasp, there is a longer version in the family. The shackle diameter on the 76/40 is 1/4 inch and the body is 1-37/64 inches wide; those stay the same across the series, so a longer shackle version keys and mounts the same way.

They solve different problems. The ABUS 76/40 comes in blue, black, brown, green, grey, orange, red, violet, white, and yellow, with keyed alike, keyed different, or master keyed ordering, and its plastic cover over an aluminum core keeps the lock light and insulated for per-worker color assignment. The Medeco 5260 is a 52 Series brass body padlock with a 7/16 inch shackle diameter and M3 key technology in satin chrome, so it is a single-finish keyed-security lock rather than a color-assignable one.

The ABUS 76/40 is a mechanical padlock keyed on a precision 8-pin cylinder, rekeyable, and available keyed alike, keyed different, or master keyed. It is a key-only lock. Where the requirement is electronic credentialing rather than a key hierarchy, the Medeco 54515G XT is an electronic indoor/outdoor padlock, non-key retaining, with a 5/16 inch shackle diameter and cylinder included.

The ABUS 76/40 measures 1-37/64 inch wide. Among the alternatives, the Sargent 82-856 is built on a 2 inch by 2 inch brass case with a stainless steel shackle, so it presents a noticeably larger footprint at the hasp. If shackle reach is the constraint rather than body size, the Sargent 60-858-2 carries a 2 inch stainless steel shackle.

Commercial. The 76/40 is a commercial-grade padlock built around safety at work applications, with an 8-pin cylinder, a rekeyable cylinder and master keying available, which is what a facility or MRO buyer needs to fold it into an existing key system rather than manage loose keys.

Push the shackle down and it locks. The 76/40 is self locking, so a worker securing a row of disconnects does not have to turn a key at each one, and the key comes out only once the lock is actually closed. That combination is why these get spec'd for lockout kits where speed and proof of lockout both matter.