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Red steel lockout box with hinged door for fifteen padlocks

Master Lock

Master Lock S3650 Group Lockout Box Red 15 Padlocks

SKU CH-30NK-AD2HB

A portable steel lockout box that holds up to 15 padlocks and mounts to a wall

  • Holds up to 15 padlocks for multi-person lockout
  • Red steel construction resists corrosion and impact
  • Hinged door allows quick padlock access and replacement
  • Wall-mountable design keeps box secure at fixed stations
  • Portable steel box supports group lockout procedures anywhere

Group Lockout Box for 15 Padlocks

This Master Lock S3650 group lockout box provides a central lockout point for team maintenance. It accepts up to 15 padlocks so each worker can apply their own lock. The red steel construction is designed for industrial environments. Wall mounting is supported for fixed installation.

Installation and Common Issues

The hinged door allows quick access to stored keys or lockout devices. Portable use is possible thanks to the integrated handle. A frequent issue is overcrowding when more than 15 padlocks are attempted, preventing the door from closing properly. Ensure the mounting surface is rigid if fixing to a wall.

Capacity and Compliance Limits

The box is limited to a maximum of 15 padlocks, restricting the size of the work crew that can be accommodated simultaneously. It carries a California Proposition 65 warning for chemical exposure. The steel body resists corrosion but is not rated for extreme chemical immersion. No electronic components are present.

Highlights

  • Holds up to 15 padlocks for multi-person lockout
  • Red steel construction resists corrosion and impact
  • Hinged door allows quick padlock access and replacement
  • Wall-mountable design keeps box secure at fixed stations
  • Portable steel box supports group lockout procedures anywhere

Specifications

BrandMASTER LOCK

Questions about this item

How do I confirm the hinged door on the Master Lock S3650 closes securely so the 15 padlocks stay locked inside?

After placing the padlocks in the steel box, shut the hinged door and verify each shackle engages fully; the door should sit flush with the frame and resist pulling without a key.

What comes with the S3650 group lockout box and what must I supply myself?

The red steel box with hinged door and wall-mount holes is included; you must provide the padlocks, hasps and any mounting hardware for the surface you choose.

Which Master Lock group lockout box should I choose if I need capacity for exactly 15 padlocks?

Select the S3650 model — it is specified for a maximum of 15 padlocks and matches the 6 7/8 in height by 8 3/8 in width dimensions listed.

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