Available in three styles. Rigid-plastic lockouts are available for double and single-pole circuit breakers. All breakers must be in the "off" position before installing the lockout.
Single-pole lockout 1215F20 requires a switch breaker with a recessed hole. Accommodates breakers up to 14mm (9/16") wide. Lockout 1215F21 is for a single-pole circuit breaker without a recessed hole. Accommodates breakers 14mm (9/16") wide. Lockout 1215F22 is for double- or triple-pole circuit breakers and requires that there be two toggles connected together with a cross bar. Will fit most major brands.