Prevent unintentional energization of electric circuits. Versatile covers lock out most circuit breakers. No. 491 oversized breaker device fits toggle switches to 2-1/2" wide x 7/8" thick. No. 492 for single pole circuit switches having recessed side-holes. No. 493 with convenient thumbwheel, for 277 and 120 volt switches. No. 494 with convenient thumbwheel, for 480/600 volt switches. No. 495 universal multi-pole devices for breakers with tie-bar.

Compact design locks out smaller plugs easily and effectively. Fits two prong plugs with and without ground - 110-120 volt. Use with existing lockout padlocks or lockout hasps. Accepts 3/16", 1/4" and 9/32" shackle diameter. Labels in English Spanish and French. Patent pending