How To Build A Custom Loto Kit For Your Facility

Building a lockout tagout kit that actually fits your workplace starts with one honest observation: there is no single off-the-shelf set that covers every machine on your floor. The most useful approach is to learn how to build a lockout tagout kit around the energy sources your team really isolates, the devices already installed, and the procedures your business already follows. This guide walks through that process step by step so you can assemble a practical LOTO kit for your facility with confidence.

Start with energy sources, isolation devices, and written procedures

The fastest way to build a kit that works is to begin at the energy source rather than the catalogue. Walk your equipment with your maintenance team and list every hazardous energy type that could injure someone during service: electrical, mechanical, hydraulic, pneumatic (compressed air), chemical, thermal, and even stored gravitational energy in raised loads. Each source has a physical point where it can be disconnected or blocked — that point is your isolation device.

For an electrical circuit, the isolation point is usually a breaker or disconnect; for a pneumatic line, it may be a quick-disconnect or air-source valve; for a pipeline, it is the valve or blind flange. Your written energy-control procedure should already name these points for each task. The kit is simply the collection of devices that lets your team reach and lock each of those points. Where a recognized standard such as OSHA 29 CFR 1910.147 applies in your region, it describes employer responsibilities for an energy-control program — but the exact requirements depend on your jurisdiction, and your own documented procedures remain the source of truth.

In practice, this means the same machine can need a different device mix from one site to the next. A custom LOTO kit earns its name because it is built from your isolation list, not from a generic checklist.

Common recurring items in most LOTO kits

After you map your isolation points, you will notice a short list of items that show up in almost every kit. These are the core you build around.

• Safety padlocks. Choose locks that are clearly different from everyday padlocks and keyed to match your program — either keyed different (each lock has its own key) or keyed alike (a group shares one key). Color coding by department or energy type helps crews spot the right lock quickly. Non-conductive bodies are worth considering near electrical work.
• Identification and warning tags. A DANGER tag records who applied the lock, on what equipment, and when. Tags should be legible, durable, and tied to the device, not left loose in a drawer.
• Lockout hasps and group devices. When more than one worker services the same equipment, a hasp or group-lock device lets each person apply their own padlock so the energy stays isolated until the last person removes theirs.

If you want a fuller picture of the basics before you spec your own, our article on what should be in a LOTO kit breaks the recurring items down in more detail.

Application-specific additions: breaker, plug, valve, cable and more

Once the core is in place, add only the device-specific lockouts your equipment actually requires. Adding hardware you will never use just makes the kit heavier and harder to audit.

Electrical isolation. Circuit breakers come in many forms — miniature (MCB), moulded-case (MCCB), and clamp-on types — and each needs a matching breaker lockout. Plug lockouts cover the cord-and-plug controlled equipment described in many procedures. Push-button and switch lockouts handle control stations. The exact electrical lockout kit contents depend on the panel designs on your site.

Valve isolation. Pipes and process lines need their own family of devices: ball, gate, butterfly, and universal valve lockouts, plus flange and plug-valve options. The right valve lockout kit contents follow the valve types installed in your plant, not a generic assumption.

Cable and pneumatic lockouts. Cable lockouts are useful for irregular shapes or when one device must capture several isolation points at once. Pneumatic and air-source lockouts address compressed-air hazards that a standard padlock cannot address. Build these in only where your isolation list calls for them.

Size the kit for the right user group

The same hardware can be packaged three ways, and the right choice depends on who carries it.

• Individual technician. A compact pouch with one or two padlocks, a hasp, a few tags, and the one or two device lockouts that technician uses most. Light enough to keep on the person.
• Department or shift. A shared case sized for the equipment that team services, with enough padlocks and tags for a typical job plus a small buffer.
• Shared maintenance team. A portable LOTO kit for maintenance teams that travels between work orders, holding a broader mix of device lockouts and a higher count of padlocks and hasps for multi-worker jobs.

Beyond the personal or team level, a LOTO kit for facility level often means several distributed kits plus a central replenishment point, so a crew can grab a ready box instead of assembling one from scratch each time. Match the format to how your people actually move through the day.

LOTO kit vs lockout station vs group lockout box

These three terms are easy to confuse, and they play different roles in a program:

• LOTO kit — a portable collection of devices carried to the job, built from your isolation points.
• Lockout station — a wall-mounted or free-standing point that holds shared padlocks, hasps, tags, and devices so they are easy to find and account for. A lockout station supports the kit; it does not replace the kit you carry to the machine.
• Group lockout box — a box that secures keys so multiple workers each apply their own padlock, then place the energy key inside; the equipment stays isolated until every worker removes their lock. It is the tool for group lockout, not a storage rack.

In most programs, a facility uses all three: kits for the work, stations for storage and visibility, and group boxes for multi-worker isolation. They are complementary.

Example configurations by use case

The tables below are illustrative examples, not compliance templates. Use them to see how the logic works; your final selection must follow your own energy-control procedures and the actual devices on your equipment.

Replenishment and periodic hardware review

A kit is not “set and forget.” Pads wear out, tags fade, and hasps bend. Keep a small buffer of spare padlocks, tags, and hasps so a missing item never becomes an excuse to skip isolation.

Review the hardware on a schedule your program defines — many sites review at least annually and after any procedure change, new equipment installation, or incident. If a device is damaged, a tag is unreadable, or a lock no longer functions, replace it. If your equipment list has grown, your kit quantities may need an update. Tracking what you hold also makes reordering faster and keeps every crew equally equipped.

FAQs

What should be included in a custom LOTO kit?

A custom kit should include the devices that match your real isolation points: safety padlocks, identification/warning tags, and lockout hasps or group devices as a base, plus the specific breaker, plug, valve, or cable lockouts your equipment requires. Start from your written procedures rather than a generic list.

Can one generic LOTO kit cover every machine in a facility?

Usually not. Different machines isolate energy at different points and with different device types, so a single generic kit tends to either miss something or carry hardware you never use. A practical approach is to build kits from your isolation list, sometimes with several smaller kits and a shared replenishment point.

How should a facility decide how many padlocks and hasps to include?

Base the count on the maximum number of workers who could be isolated on one piece of equipment at the same time, plus a small spare buffer for lost or damaged items. Your procedures and typical crew size are the most reliable inputs; review the numbers when teams or equipment change.

What is the difference between a LOTO kit and a lockout station?

A LOTO kit is the portable set a worker carries to the machine. A lockout station is a fixed storage and visibility point for shared padlocks, tags, and devices. The station supports the kit; it does not replace the kit you bring to the job.

When should breaker, plug, valve, or cable lockout devices be added?

Add them when your isolation list identifies a corresponding energy point. Breaker and plug lockouts cover electrical isolation, valve lockouts cover piping and process lines, and cable lockouts help with odd geometries or several points at once. If a device is not on your isolation list, leave it out.

How often should the hardware in a LOTO kit be reviewed or replenished?

Review on a schedule your program defines — commonly at least once a year and after any procedure change, new equipment, or incident. Replace damaged or unreadable items as soon as they are found, and top up spares so every kit stays ready to use.

Build a device list from your real isolation points

About Prolockey

Prolockey is the lockout/tagout brand of Lockey Safety Products Co., Ltd., founded in 2015 in Yueqing, Zhejiang, China. The company operates an 8,000 m² facility, has 100+ employees and serves customers in 140+ countries. For industrial buyers, Prolockey focuses on reliable LOTO products, flexible customization, and competitive total procurement cost.