Master Switch 3P Static Switch

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master switch three phase static transfer switch

Type: Static Transfer Switch
Current Range: 100 to 800 A
Input/Output: 3:1
Installation Type: Tower
Transfer Time: 4 to 10 ms
Bypass switch compatible with all types of UPS
Equipped with maintenance bypass switch
Available in 3 or 4 pole
Complete protection circuit
With LCD display
Automatic switch if mains outage
The Master Switch 3P is an automatic power switch that allows loads to be powered by two separate AC power inputs to which they are connected. In fact, the loads connected to this device are powered from two sources. Now these two sources can be any type of alternative power such as city electricity, diesel generators, UPS and etc. In the event of a problem with the main input power supply, such as a drop in voltage and frequency or a power failure, the system will automatically supply power to loads in the shortest possible time through the second input power supply. This switch time is so short that it does not cause any interruption in the operation of the loads. The process of switching between two inputs can also be done manually using the keys embedded on the device.

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A complete protection circuit protects the outlets from any possible damage due to problems such as short circuit, overload, etc. Communication module slots make it possible to monitor the device with PowerShield3 monitoring software. An emergency shut-off terminal (EPO) is mounted on the front panel that can be connected to the switchboard to cut off the output immediately if necessary.

(1) Monitoring Master Switch 3P under TCP/IP protocol requires NetMan 204 module and under Modbus/Jbus protocol requires MultiCOM 302 module.

This device is mainly used to duplicate power in data centers and computer networks. For information on the inventory and price of the Master Switch 3P static switch, contact Zener Engineering Company sales department.
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File Name Volume Update
An Adobe Acrobat file Master Switch 3P persian brochure
670.25 kB
Software and Accessories
UPS/ATS monitoring software
UPS remote monitoring software
UPS/ATS remote monitoring
Modbus/Jbus protocol converter
Serial port extender
Communication card adapter
Technical Specification
Transfer System
Input Spec.
Input Voltage 380, 400, 415 VAC three phase + N
Input Voltage Range 180 to 264 VAC selectable
Input Frequency Range 50 or 60 Hz
Max Input Current - select model from top -
Inlet Terminal board
Output Spec.
Output Voltage 220, 230, 240 VAC
Max Outpute Current - select model from top -
Transfer Time S1/S2 synchronized: 4 ms, S1/S2 non-synchronized: 10 ms
Efficiency > 99%
Outlet Terminal board
Physical Spec.
Dimensions (W × D × H) - select model from top -
Weight - select model from top -
TS Environmental Conditions
Working Temperature Ambient: min 0 °C, max 40 °C
Working Humidity max 95% non-condensing
Noise Level - select model from top -
Other Features
Protections Over-current, short-circuit
Communications Slot for communication interface
Standards EN 62310-1 (Safety), EN 62310-2 (Electro-magnetic compability)
Ask about this product

Sales and Marketing Department

Ready to register your purchase requests.
+98 919 468 3960
Zener engineering company (PJS), founded in 1981 is among the most experienced companies in the power and electronics field in Iran. We offer a wide range of products in the field of generating electric power including online, offline and line-interactive UPS both single and three-phase from home and office to medical and industrial applications, sealed lead acid batteries, automatic transfer switch (ATS), monitoring systems, environmental sensors and related accessories. Zener Eng. Co. provides optimal technical support in order to create the best possible customer satisfactory regarding the uninterrupted function of its equipment. This is achieved using over 60 trained personnel. Our colleagues in sales and marketing department and after sales services department are trained to give our valued customers consultation in finding the most suitable products for their need, design and execution of uninterrupted electrical systems while providing special solutions. In addition to manufacturing single and three-phase UPS, sealed lead acid batteries both with Zener brand, Zener engineering company is official and exclusive agent for Riello UPS (from Italy), Ablerex UPS (from Taiwan), Rocket and Newmax batteries (from South Korea), Interberg batteries (from Spain) and Starway batteries (from China).
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Design by: Hamrad Gostar Asia Technology Development