Thermal magnetic circuit breakers
10 June 2015
Circuit & System Protection
Legrand’s thermal magnetic DRX range of moulded case circuit breakers (MCCB) has been extended to 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.
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 onto 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.
For more information contact Legrand, +27 (0)11 444 7971, [email protected], www.legrand.co.za
Further reading:
Clearing the Static: Key principles of ESD control in electronics manufacturing
Actum Electronics
Circuit & System Protection
Effectively managing electrostatic discharge is essential in electronics manufacturing to ensure not only product reliability, but also worker safety.
Read more...
Clearing the Static: Three steps for a dry ESD packaging system
Actum Electronics
Circuit & System Protection
For optimal storage, it’s essential to complete the dry-packaging system by adding Desiccant Packs and Humidity Indicator Cards.
Read more...
Ensuring safety with earth leakage protection
NewElec Pretoria
Circuit & System Protection
Earth leakage protection helps mitigate the risks of electric shocks, fires, and equipment damage by swiftly identifying faults and disconnecting the power supply, thus safeguarding both human lives and machinery.
Read more...
Suppressing EMI with filters
Vepac Electronics
Circuit & System Protection
EMI/RFI filters play an important role in reducing the high-frequency noise that is generated by various electrical and electronic devices.
Read more...
Patch attenuates like a shielding cabinet
Würth Elektronik eiSos
Circuit & System Protection
Würth Elektronik has launched its hybrid WE-EMIP EMI absorber sheet, a convenient solution for reducing electromagnetic interference by up to 40 dB.
Read more...
Clearing the Static: Ionisation equipment
Actum Electronics
Circuit & System Protection
Electrostatic discharge (ESD) ionisation equipment is designed to neutralise static charges that accumulate on surfaces in environments where ESD-sensitive components or materials are handled. These
...
Read more...
Motor and feeder protection for LV and MV environments
NewElec Pretoria
Circuit & System Protection
This relay from NewElec is a micro-controller-based precision instrument with ANSI protection elements, advanced control features, and switchgear controller logic integrating motor and feeder control functions.
Read more...
Clearing the Static: How to protect PCBs from electrostatic discharge and moisture
Actum Electronics
Circuit & System Protection
Printed circuit boards (PCBs) are essential components in most electronic devices. They are sensitive to environmental factors like electrostatic discharge (ESD) and moisture, which can cause significant
...
Read more...
Clearing the Static: ESD chairs: Essential tools in controlled protected areas
Actum Electronics
Circuit & System Protection
Static poses a significant risk in various industries, particularly those involving sensitive electronic components and equipment. To mitigate these risks, electrostatic discharge (ESD) chairs play
...
Read more...
Clearing the Static: ESD dissipative floor mats
Actum Electronics
Circuit & System Protection
Dissipative floor mats are specialised mats designed to protect sensitive electronic equipment and components from electrostatic discharge (ESD), by quickly drawing the static electricity off workers before they touch such items.
Read more...
printer friendly version