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Clear polycarbonate push-button lockout cover 2.41 in tall 2.1 in wide 1.98 in deep

Master Lock

Master Lock S2151 push button lockout clear 1.2 in 5/16 in

SKU CH-SE53-T8R93

Clear polycarbonate push-button lockout covers buttons 0.89–1.2 in wide and accepts one 5/16 in shackle padlock

  • Product typeMechanical Push Button
  • Fits push buttons from 0.89 in to 1.2 in diameter
  • Accommodates padlock shackles up to 5/16 in
  • Clear polycarbonate cover shows switch status at a glance
  • Removable design installs without permanent modification
  • Holds one padlock for single-person lockout control

Mechanical push-button lockout

The Master Lock S2151 is a clear polycarbonate lockout device that fits over push-button and rotary switches. It accepts buttons from 0.89 in to 1.2 in diameter and secures the control with a single padlock up to 5/16 in shackle size.

Removable cover and dimensional limits

Installation is tool-free; the removable cover snaps on and off for quick access during maintenance. The housing measures 2.41 in high, 2.1 in wide and 1.98 in deep, so it fits within standard panel cut-outs but will not cover oversized operators.

Single-padlock capacity and clearance headroom

The unit accommodates one padlock, providing sufficient isolation for individual lockout procedures. It cannot accept multiple locks for group lockout, and buttons larger than 1.2 in or shackles thicker than 5/16 in exceed its design limits.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $21.99
Cheaper than about 68% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameMaster Lock
Product typeMechanical Push Button

Questions about this item

Which push-button lockout size fits my 1.2 in button?

This model covers push buttons from 0.89 in to 1.2 in diameter and accepts a single padlock with up to 5/16 in shackle.

How does the 1.2 in maximum button diameter translate on a real panel?

It fits standard push-button and rotary switches up to 1.2 in across, covering most industrial emergency-stop and control buttons.

What does the removable polycarbonate cover cap in practice?

The clear polycarbonate cover installs without tools, encloses the switch completely and allows one padlock to lock out the control.

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