Universal circuit breaker lock E203, single-pole, ABS, red. High-quality materials, durable, robust, non-conductive. Easy to use with a screw mechanism for secure attachment (tool-free). Universally applicable to common circuit breakers. The universal lock for single and multi-pole circuit breakers: Simply slide on and tighten with the handwheel - no additional tools required. With the E203 lock, securing can be done vertically and horizontally through the multifunctional eyelet. This allows for a series locking with multiple circuit breaker locks in conjunction with a cable lock.