Connector system enables safer lockout/logout

Article By : Molex

The ArcArrest system provides operators visual proof that power has been disconnected.

Molex LLC has released the Woodhead ArcArrest 30A switch-rated connector system. The system is designed to de-energise machinery, lighting and power distribution systems.

"Plant technicians servicing and maintaining machines may be placed at risk if hazardous energy is not properly controlled during operation and when powering down a machine. Proving there is no power in the circuit supplying a machine can be time consuming, with serious ramifications if not properly handled," said Tom Beranek, product manager, Molex, in a press statement. “The ArcArrest system provides clear visual proof that power has been disconnected in accordance with OSHA standards.”

The Woodhead ArcArrest switch-rated connector helps prevent hazardous energy release while energising or de-energising machines and during lockouts for service and maintenance, Molex said. Spring-loaded silver-nickel contacts provide switching capabilities similar to a rotary switch or contactor. Unlike standard industrial disconnect switches, which are not always located in close proximity to equipment and may require an electrician to perform lockout/tagout procedures, the ArcArrest system provides fast and positive confirmation of compliance, the company noted. Pressing the pawl on the receptacle ejects the plug to its rest position and de-energises the system. Rotating the plug allows for removal and closes a dead-front shutter on the receptacle.

Woodhead ArcArrest connector assemblies incorporate finger drawplates and plug caps. Its smooth, contoured housing design makes the ArcArrest system suitable for conveyors, process equipment and packaging machines in food processing applications requiring frequent wash downs. The NEMA 4X and IP69K-rated system eliminates ingress of dust and water when the system is connected or disconnected. Critical components of the UL 2682-rated ArcArrest system are reinforced to deliver complete UL material compliance.