Master Switch adds a source of redundancy to a critical installation and automatically transfers the connected load between two separate AC power sources. The transfer can be automatic when an input power supply fails outside set tolerances or be manually forced using the front panel keypad or remotely via a communications network.
Hot Replacement function
3 – or 4 – pole version
See series table
Nominal voltage – sources S1/S2 220-230-240 Vac
220 – 230 – 240 Vac single-phase + N Input voltage
Input voltage tolerance
180-264 Vac (selectable)
Switched input phases
ph+N (two poles)
Nominal frequency 50/60 Hz ±5Hz
50/60 Hz ±5Hz
IT, TT, TNS, TNC
“Break Before Make” (no overlapping sources)
Intervention method in the event of failure
hot swap function
Available transfer methods
Automatic / Manual / Remote
Transfer time following source failure
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Helios Power Solutions Pty Ltd | Power Supplies, Batt Charger, DC/DC & LED Driver IndustrySearch Trusted Supplier
Power supplies for industrial, mining, railway, Land & Mobile Radio, lighting (LED), medical power supplies and laboratory power supplies are a major specialty of Helios Power Solutions.
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