MAY 17, 2009 – Lenze-AC Tech announces the SMVector Frequency Inverter with a highly visible Internal Disconnect switch. Available on NEMA 4X (IP65) enclosed drives, the switch removes power to facilitate service and maintenance. Use of the Internal Disconnect Switch in decentralized “point of use” operations including conveyors, fans, pumps, material handling, stackers and sorters will result in reduced downtime, with operations getting back on-line faster.Many parts of North America require a means of power disconnection at the motor. The minimal footprint of the SMVector with Internal Disconnect helps electricians, installers and OEMs meet those codes with one piece of equipment.
Besides saving valuable real estate on the production line, the Internal Disconnect reduces equipment cost by eliminating the need for a separate external disconnect switch mounted in its own enclosure, and of additional wiring between the external disconnect and the SMVector drive.Drives purchased in NEMA 4X rugged enclosures are usually decentralized, installed close to the motor. Now the user has the means of disconnecting motor power right there —no more searching for the circuit breaker panel located in a remote maintenance closet. The Internal Disconnect switch is lockable in the off position, allowing maintenance personnel to service the motor while it is still connected to the SMVector drive. The Internal Disconnect Switch conforms to European electrical conventions.

