CATU PP-4-38-G Insulating Safety Padlock with Retaining Key, Nylon Shackle

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A Safety Padlock used in Lockout/Tagout (LOTO) procedures is a specialized lock designed to ensure that equipment is kept off and securely isolated from energy sources during maintenance or repair work. LOTO procedures are critical safety measures in industrial and commercial environments, aiming to protect workers from the unexpected energization or startup of machinery and equipment, or the release of hazardous energy during service or maintenance activities.

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SKU Key Number Number of Padlocks ∅ Shackle (mm) Height (mm) Pack Size Each Weight (g)
Thumbnail PP438GA1 A1 1 4 38 Each 91
Thumbnail PP438GA2 A2 1 4 38 Each 91
Thumbnail PP438GA3 A3 1 4 38 Each 91
Thumbnail PP438GA4 A4 1 4 38 Each 91
Thumbnail PP438GA5 A5 1 4 38 Each 91
Thumbnail PP438GA6 A6 1 4 38 Each 91
Thumbnail PP438GZ Z 1 4 38 Each 91

Application : 

  • For locking the separating devices (e.g. circuit breakers) to prevent their operation. 
  • Padlock with insulating shackle for use in low voltage 1000 V AC - 1500 V DC: tested and validated in accordance with the electrical test IEC 60900 (2012) §5.5.3. at 5 000 V.
  • More secure locking: impossible to drop the key when the shackle is open, the key remains trapped.


Features : 

  • Available with a keys alike (A1 to A6) or different (Z).
  • Marking on both sides: 
  1. On one side: Standard symbol.
  2. On the other side: area for marking user names and coordinates.
  • Padlock delivered with 2 keys.


Key features of Safety Padlocks for LOTO include:

  1. Unique Keying Options: These padlocks often come with unique keying options such as keyed different (each lock has a unique key), keyed alike (all locks can be opened with the same key), and master keyed (each lock has its own key, but a master key can open all locks). This ensures security and flexibility in managing access.

  2. Durability: Constructed to withstand industrial environments, they are often made from sturdy materials resistant to chemicals, temperature extremes, and physical abuse. This durability ensures the lock's integrity in various working conditions.

  3. Non-Conductive: Many safety padlocks are designed with non-conductive materials, such as nylon or thermoplastic, for the body and shackle to prevent electrical accidents, making them suitable for electrical lockout applications.

  4. Colour Coding and Labelling: To facilitate easy identification and to help ensure that workers can quickly recognize the purpose of a lock and who has control over it, safety padlocks come in various colours and have labels or write-on surfaces. This is crucial for preventing accidental removal or confusion during complex maintenance operations involving multiple workers or teams.

  5. Compact Size and Lightweight: Designed to be easy to carry and not to interfere with equipment operation, these padlocks are compact and lightweight, yet secure.

  6. Regulatory Compliance: Safety padlocks for LOTO are manufactured to meet or exceed regulatory standards for safety, such as those set by OSHA (Occupational Safety and Health Administration) in the United States, ensuring that they are effective in preventing accidental energization.

Safety Padlocks are an essential component of a comprehensive LOTO program, which also includes devices for locking out circuit breakers, valves, switches, and other energy control points. Proper training and the correct use of LOTO devices and procedures are crucial for safeguarding workers during maintenance or when they are exposed to potential hazards due to unexpected equipment activation or energy release.

    • Each Weight (g)
      91 g
    • SKU
      PP438GA1
    • EAN
      3597560081145
    • HS Commodity Codes
      83011000
  • Manufacturer
    CATU SAS is a subsidiary of the SICAME Group
  • Country of Origin
    France
  • Key Number
    A1, A2, A3, A4, A5, A6, Z
  • Number of Padlocks
    1, Not Applicable
  • ∅ Shackle (mm)
    4, Not Applicable
  • Height (mm)
    38, Not Applicable
  • Pack Size
    Each, Not Applicable