Features * Type tested & ASTA certified to BS EN 61439-3 * 10kA for 0.1 second short circuit rating * 25kA conditional short circuit rating * Rated voltage 230/400V 50/60Hz * Modular construction * 1mm sheet steel enclosure painted in RAL 7035 light grey * Degree of protection: IP3X * Manufactured in the UK * Full UK-based technical support available * Utilises both 5SL MCB and 3VA MCCB technologies

Alpha BSIII, ‘at a glance’ * Fully Type tested to IEC / BS EN 61439-2 * Manufactured in the UK * Compact with a flexible modular design * Degree of Protection IP3X * Busbar systems from 250A to 800A * I from 25kA for 1s up to 65kA for 1s * Form 3bT2 or 4bT6 GM * Utilises Siemens 3VA MCCBs * Quick and easy installation * Full UK based technical support available * SP, TP and 4P Devices * 160A Outgoing Devices as standard. * 250A Outgoing Device Add-on Options available.

The 3WA air circuit breaker combines all of the functions which are required of power distribution equipment in the digital companies of today. The 3WL air circuit breakers reliably protect electrical equipment from damage or fire resulting from short circuit, ground fault or overload failures.

As a modular, highly adaptable system, the 3VA series of molded case circuit breakers ensures fully reliable protection of personnel and plant, and supports every process phase - from planning to operation of electrical power distribution.

Miniature circuit breakers from the SENTRON portfolio are also simple to mount and install. The devices have a uniform design and, with the appropriate accessories, can be expanded by many additional functions. For industry, buildings or infrastructure - with our versatile portfolio, you will find a suitable miniature circuit breaker for any application.

The number of electrical consumers in residential homes and commercial buildings has increased dramatically in recent decades. All of this requires new protection strategies for electrical installations. This also includes appropriate residual current protection devices or residual current circuit breakers that will cut the current immediately and safely in the event of a fault.

Control and automatic functions always employ electrical switching. Remote control switches for pulse controls, switching relays, or Insta contactors switch electrical loads. Our low-voltage circuit protection technology offers a wide variety of contact versions and rated currents for the different requirements of these devices. Safety, convenience and energy savings - these characterize automatic switching.

Overvoltage results in considerable damage to electrical and electronic equipment. Even brief transients in power supply lines or between electrical lines and other conductive parts (e.g. grounded metallic parts, ground) are sufficient to cause such damage. The damage patterns of destroyed lines, circuit boards or switchgear demonstrate this. Such damage can be prevented employing suitable overvoltage protection means.

Overcurrents in electrical installations occur as a result of excessive load or short-circuits and can cause serious accidents, fires and financial damage. Appropriate protection devices have therefore been mandatory ever since electricity was first harnessed to power equipment. As a pioneer in fuse systems, we offer you the complete range of devices for the protection of cables as well as electrical devices and installations in the event of overloads and shortcircuits.

Circuit protection devices such as miniature circuit breakers or arc fault detection devices are used close to the consumer in branch circuits. In case of overload, short circuit or arcing faults, they disconnect the affected circuit from the network.

There are many advantages to be had from keeping a watchful eye on your energy consumption: in addition to cost savings through optimized consumption, you ensure increased resilience with the monitoring of power supply systems and network quality in infrastructure and industrial plants. At the same time, systematic power monitoring increases your awareness of actual energy consumption, making it a key prerequisite for greater energy efficiency. Integration into open IoT operating systems such as MindSphere results in even greater optimization potential.

Monitoring devices perform numerous functions to protect people and machinery: At dusk, they switch on automatically, control the temperature or signal the location where a fuse has tripped. They also ensure reliable switchover to emergency power supply, monitor the emergency lighting, ensure overload-free operation of motors and neutral monitoring for breakage and overvoltages.