Master Switch 1P Static Switch

master switch single phase static transfer switch

Type: Static Transfer Switch
Current Range: 32 to 120 A
Input/Output: 1:1
Installation Type: Rackmount
Transfer Time: 4 to 10 ms
Modular static switch
Rackmount installation
Equipped with maintenance bypass switch
Equipped with relay contact
Complete protection circuit
Monitoring via network feature (1)
Generally the structure of this electric switch is similar to the Multi Switch automatic switch, except that in this model, a manual bypass switch is provided for possible maintenance. The Master Switch 1P is a power switch that supplies power to loads with two separate AC power inputs to which it is connected. In fact, the loads connected to this device are powered from two sources; These two sources can be any type of alternative power such as city electricity, diesel generators, UPS, etc. If there is a problem with the main input power supply, such as a drop in voltage and frequency or a power outage, the power supply can be transferred to the second input power supply using the keys installed on the device. This switch time is so short that it does not cause any interruption in the operation of the loads.

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The modular capability allows the bypass switch to operate separately and simply replace the switch with another device in the event of any malfunction without interruption to the loads power supply. Communication module slots and an RS-232 serial port make it possible to monitor the device with PowerShield3 monitoring software. Independent outlets with protection circuits protect other connected loads from any risk of damage in the event of a short circuit at any of the outlets. 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. Also, three output relay contacts are provided on this device.

(1) Master Switch 1P monitoring 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 1P static switch, contact Zener Engineering Company sales department.
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File Name Volume Update
An Adobe Acrobat file Master Switch 1P persian brochure
708.94 kB
Software and Accessories
UPS/ATS monitoring software
UPS remote monitoring software
UPS/ATS remote monitoring
Modbus/Jbus protocol converter
Serial port extender
Technical Specification
Transfer System
Input Spec.
Input Voltage 220, 230, 240 VAC single 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 Choice of one of the two input power sources
Max Outpute Current - select model from top -
Transfer Time S1/S2 synchronized: 4 ms, S1/S2 non-synchronized: 10 ms
Efficiency n/a
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 max 40 dBA @ 1 m
Other Features
Protections Over-current, short-circuit
Communications RS-232, slot for communication interface, relay contacts port
Standards EN 62310-1 (Safety), EN 62310-2 (Electro-magnetic compability)
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Sales and Marketing Department

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+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