Legrand Power Equipment: the new DRX MCCBs for reliable protection in electrical installations

Legrand DRX 250 MCCB
Legrand’s thermal magnetic DRX range of MCCBs has been extended to now protect against overloads and short-circuits, in electrical installations up to 630 A. These robust circuit breakers are suitable for use in any environment, including harsh corrosive conditions and high temperature applications

Legrand’s extensive range of power equipment encompasses miniature circuit breakers (MCBs), moulded circuit breakers (MCCBs), surge protectors, modular distribution blocks, air circuit breakers, cast resin transformers and capacitors, as well as industrial sockets and wiring accessories.

“This range, which meets stringent international and local safety and quality specifications, has been designed for easy selection, reliable performance, efficient installation and optimum safety,” claims Johan Bosch, Legrand’s national sales manager. “Legrand is committed to the manufacture of technologically advanced products that meet the demands of modern industrial, commercial and residential environments. Products are continually upgraded for improved efficiency and safety, enhanced aesthetics and greater energy savings.

Legrand’s thermal magnetic DRX range of MCCBs has been extended to now protect against overloads and short-circuits, in electrical installations up to 630 A. These robust circuit breakers are suitable for use in any environment, including harsh corrosive conditions and high temperature applications

“Legrand’s thermal magnetic DRX range of MCCBs has been extended to now protect against overloads and short-circuits, in electrical installations up to 630 A. These robust circuit breakers are suitable for use in any environment, including harsh corrosive conditions and high temperature applications.”

There are three units in this range – DRX 125 (with ratings from 15 A to 125 A), DRX 250 (with ratings from 125 A to 250 A) and DRX 630 (with ratings from 320 A to 630 A). These devices have a mechanical endurance up to 25 000 operations and for enhanced safety, no live parts are accessible once the system is securely installed under a faceplate.

DRX 125 and DRX 250 units are easily positioned and removed from the DIN rail with an adaptor. All DRX MCCBs can be plate mounted and installed in a Legrand XL³ enclosure in any position, including horizontally.

Simple and indelible marking on the front of the MCCB clearly indicates critical information that includes thermal magnetic protection, nominal current and breaking capacity. (There are several breaking capacities between 16 kVA and 50 kVA).

These circuit breakers operate in AC or DC and wiring is via busbars or cables. Specially designed accessories facilitate easy wiring, quick installation and for enhanced safety, remote tripping is allowed. These accessories include cable spreaders, cage terminals, rear terminals, insulating shields and terminal shields. DRX 125 and DRX 250 devices have a hinge design so the front panel can easily open and close.

Control and signalling auxiliaries, which simply clip on to the circuit breaker, include fault signals that indicate the state of the contacts or the opening of the MCCB on a fault. Shunt trips and under voltage releases allow the remote tripping of a DRX unit.

For increased security and to prevent mishandling and the risk of accidents, a padlock can be used to lock the rotary handle.

Legrand’s enhanced range of DRX MCCBs ensures safe and reliable switching, control, isolation and long term protection of low voltage electrical lines.

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