Yes. The MSA 3104L-00 LadderLatch is a climbing (attachment) device engineered for continuous fall protection on fixed vertical ladders. Worn with a full body harness, it connects to an MSA Latchways vertical cable lifeline and lets the user move hands-free up or down the entire ladder without disconnecting. Its unique starwheel passes over the cable's intermediate supports without detaching, so there are no tie-off gaps, and in a fall the device automatically engages the line and locks to arrest it. It is built for construction, general industry, and utility work at heights, and meets ANSI Z359.16-2016.

The MSA 3104L-00 LadderLatch attachment device is certified to ANSI Z359.16-2016, the U.S. standard for climbing devices used on flexible cable-based vertical fall-arrest systems. (The matching CSA-certified version is the MSA 3103L-00, tested to CSA Z259.2.5-17.) When installed as part of a complete MSA Latchways vertical ladder system, that system also meets OSHA 1910.28 Walking/Working Surfaces requirements.

The starwheel is the MSA 3104L-00 LadderLatch's signature feature: a toothed wheel that rolls along the vertical safety cable and passes smoothly over the cable's intermediate supports (guides) without the user needing to detach. This means you stay continuously connected for the full climb — no unclipping and re-clipping at each support point — which keeps both hands free and eliminates the tie-off gaps where most ladder falls happen.

Yes. The MSA 3104L-00 LadderLatch includes a built-in anti-inversion mechanism that prevents the device from being connected to the cable upside down. This ensures the LadderLatch is always oriented correctly to engage and lock in a fall, removing a common user error before the climb even starts.

Yes. The MSA 3104L-00 LadderLatch must be used with a full body harness, which connects the climber to the LadderLatch. The LadderLatch in turn rides on an MSA Latchways vertical cable lifeline that includes an energy absorber. The device is designed specifically for MSA Latchways vertical systems and is the only approved climbing device for MSA Latchways Vertical Ladder Kits.

No. The MSA 3104L-00 is the LadderLatch climbing/attachment device only — the vertical ladder lifeline kit (the cable system installed on the ladder) is sold separately. The kits come in multiple lengths for different ladder heights and can be ordered with or without an extension post; the LadderLatch is the reusable device the climber wears to attach to that system. You need both a kit and a LadderLatch device for a complete fixed-ladder fall-protection setup.

The two are the same LadderLatch climbing device certified to different regional standards. The 3104L-00 is the ANSI version, approved to ANSI Z359.16-2016 for U.S. use. The 3103L-00 is the CSA version, approved to CSA Z259.2.5-17 for Canada. Choose the 3104L-00 for ANSI-governed U.S. jobsites; both share the same starwheel and anti-inversion design and work on MSA Latchways vertical systems.

The MSA 3104L-00 LadderLatch is black, weighs 3.086 lb (1.4 kg), and measures 12.638 in (321 mm) long, 3.898 in (99 mm) wide, and 3.071 in (78 mm) high. It is certified to ANSI Z359.16-2016 and features the starwheel that passes cable supports without detaching plus an anti-inversion mechanism. It works on MSA Latchways vertical ladder systems and is used with a full body harness for construction, general industry, and utility work at heights.

Because the LadderLatch keeps you connected the entire climb. With traditional lanyard tie-off you must disconnect and find a new anchor point repeatedly as you ascend or descend — the moments most likely to end in a fall. The MSA 3104L-00 stays attached to a single vertical lifeline and its starwheel glides past every cable support automatically, so you climb hands-free and never break your connection. If you fall, the device instantly engages and locks onto the line.

The MSA 3104L-00 LadderLatch is designed exclusively for MSA Latchways vertical cable systems equipped with an energy absorber, and it is the only approved climbing device for MSA Latchways Vertical Ladder Kits. It should not be used on other manufacturers' systems. The kits use all-stainless-steel components and are available with an optional extension post for easier, safer transitions onto the landing surface at the top of the ladder.

The MSA 3104L-00 LadderLatch (ANSI Z359.16-2016) is available at Industrial Safety Products (industrialsafetyproducts.com) with free shipping. It's the climbing/attachment device that connects a harness-wearing worker to an MSA Latchways vertical ladder lifeline; the matching ladder kit is sold separately in lengths to suit your ladder height. Industrial Safety Products also carries the CSA version (3103L-00) and the vertical ladder kits with or without an extension post.