When it comes to electrical safety in industrial settings, ensuring that electrical equipment is properly isolated during maintenance or repair work is critical. This is where IEC 60947-2 certified electrical equipment lockouts come into play. The IEC 60947-2 standard, established by the International Electrotechnical Commission (IEC), outlines the essential safety requirements for low-voltage electrical switches, circuit breakers, and their accessories. Among the many safety devices prescribed by this standard, electrical equipment lockouts are particularly vital for protecting workers from accidental electric shock or equipment malfunction. This article explores what IEC 60947-2 certified electrical equipment lockouts are, why they are essential, and how they contribute to overall electrical safety.

What Are IEC 60947-2 Certified Electrical Equipment Lockouts? Electrical equipment lockouts are mechanical safety devices designed to physically secure electrical circuits in the “off” position. These lockouts prevent the operation of switches, circuit breakers, and disconnects during maintenance or servicing. According to IEC 60947-2, these devices must meet stringent requirements to ensure that they can reliably isolate electrical systems, providing a secure working environment for maintenance personnel. A lockout device works by locking a circuit breaker or switch in the “off” position, preventing it from being accidentally turned back on while maintenance work is underway. This system can be used in conjunction with tags that clearly communicate the maintenance status of the equipment. Lockout mechanisms typically require a key or a combination lock to unlock, ensuring that only authorized personnel can restore power, significantly reducing the risk of accidents.