Masterswitch 25 kW (230 V) kest

It automatically switches between two alternating current sources (such as a generator and a shore power outlet) to power the onboard network, with no manual intervention required from you.

This industrial transfer switch can handle high power up to 25 kW, with a maximum current of 125 A on both input and output.

The Masterswitch has two AC (alternating current) inputs to connect your power sources, and a single output that redistributes the current to your electrical system.

Input 1 has absolute priority. If a voltage is detected there, it automatically powers the output. Input 2 takes over only when there is no current on input 1.

A switching delay (default set to 10 seconds) allows the generator to start and stabilize its voltage and frequency before taking on the load, protecting your onboard electrical system.

Yes, this delay is adjustable from 0 to 10 seconds. If you use input 1 to connect a shore power plug (which does not require a warm-up time), it is recommended to set this delay to 0 seconds.

Transfer time is ultra-fast: expect 12 to 22 milliseconds on power-up and 4 to 19 milliseconds on power-down.

Yes, due to the micro-outage inherent in switching between AC sources, computers and other highly sensitive electronic equipment can lose data if not protected by a UPS.

Yes, it meets IP55 waterproofing standards, providing effective protection against dust deposits and water jets in marine environments.

No, this specific model is not compatible with the MasterBus communication network.

Yes, this unit does not include circuit breakers. It is essential to install fuses and residual current circuit breakers (rated at 125 A maximum) on the wiring for all inputs and outputs.

The device weighs 3.8 kg. Its exact dimensions are 291 x 241 x 168 mm (height x width x depth).

The Masterswitch grounding terminal must be connected to the boat's or vehicle's central grounding (connected to the hull or chassis) to ensure the safety of the installation.

The device is designed to withstand demanding conditions, with a specified operating temperature range from -5 °C to 60 °C.

It is designed for 230 V single-phase systems (with an input range of 200 to 250 V), operating at a frequency of 50 or 60 Hz.

No, this model is designed to be clean and industrial: it has no LED indicators on the housing nor a connection port for a remote control.

Although it is rated IP55, it must be installed in a dry location, protected from direct rain, snow, excessive humidity, and condensation risks to prevent any electrical shock.

No, the Masterswitch is not intended for use as a component in life-support systems or medical equipment, unless a specific written agreement is in place with the manufacturer.