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Call: +44 (0)1978 729 297
Current Range: 32 - 120 A
1:1

1-phase static transfer switch

 

Master Switch Single-Phase is a transfer switch designed to protect loads with different power ratings. Choice of 3 sizes (32A, 63A, and 120A) and with a manual bypass to easily switch sources in the event of a fault.

 

Complete Diagnostics

Features an LCD control panel with multi-functional keys. This enables you to monitor readings and switch operating statuses quickly and intuitively. Incorporates 3 dry contacts, RS232 port, and a communications slot to allow for further LAN connection. 

Load Protection

Guaranteed switching time of less than a quarter of a cycle (< 4 msec for synchronised inputs; < 10 msec for non-synchronised). This is the case for both automatic and manually-triggered switches.

Master Switch Monofase MMS

HIGHLIGHTS

  • Available in 3 sizes (32 A, 63 A, and 120 A)

  • Protects single-phase loads with different power ratings

  • Fitted with a manual bypass to easily switch power sources in case of fault

  • Simple plug and play installation

  • Connectivity slot enables LAN connection and remote management

Brochures and data sheets

Select File Language:

Master Switch STS Single-phase

32-63-120 A Static Transfer Switch

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Technical specifications of the model
PDF
RTF
Models MMS 32
INPUT
Voltage 220 / 230 / 240 V single-phase + N
Voltage tolerance 180-264 (selectable)
Frequency tolerance ±10% (selectable)
Input frequency 50 / 60 Hz
Switched input phases ph+N (two poles)
Distribution compatibility IT, TT, TNS, TNC
ENVIRONMENTAL
Color RAL 7016
Protection rating IP20
Other compliances EN 62310-1 (safety) EN 62310-2 (electro-magnetic compatibility)
Noise (at 1 m) < 40 dBA
Operating temperature 0 °C - +40 °C
Storing temperature -10 °C up to +50 °C
Relative humidity 5-95% non-condensing
Transport “Break Before Make” (no overlapping sources)
Available transfer modes Automatic / Manual / Remote
DATA
Weight 10 kg
Dimensions (h w d) 2U x 19” x 520 mm

Static transfer switch available in 3 sizes (32A, 63A, and 120A) and designed to protect 1-phase loads with different power ratings.

Features a manual bypass that enables even non-technical staff to easily switch between 2 independent power sources in the event of a supply failure.

 

Complete Diagnostics

Master Multi Switch features a 32-character LCD display and a control panel with multi-functional keys. This enables you to monitor readings and switch operating statuses quickly and intuitively.

Incorporates 3 programmable dry contacts, RS232 serial connection port, and a communications slot to allow for further LAN connection as well as remote monitoring and control.

 

Load Protection

In the event of a fault, MMS guarantees switching time between the 2 power sources of less than a quarter of a cycle (< 4 msec for synchronised inputs; < 10 msec for non-synchronised). This is the case for both automatic and manually-triggered switches.

Microprocessor control and the use of thyristor static switches ensure continuous monitoring of the power supply sources and reduced switching times between the two sources in the event of a fault.