Multi Switch Automatic Transfer Switches (STS) 10-40A
Multi Switch is an intelligent automatic transfer switch that can be powered from two independent sources to achieve standby power protection should one source fail suddenly. Up to eight separately connected network devices can be powered from its output sockets. MultiS witch is ideal for complex computer and Voice over IP (VoIP) networks requiring maximum uptime and provides the advantage of allowing users to control actively their connected devices.
Standby Power System - Dual power sources
The power sources to a Multi Switch can be a combination of two independent mains supplies, uninterruptible power supplies or a combination of the two. Each source has to be rated to support the full load placed on the eight output sockets. MultiSwitch can be installed with a single power source to allow the dual feed option to be activated at a later date in the growth of the network. See the “principle of operation” diagram on the datasheet.
If one of the power sources fails or falls outside specification, Multi Switch powers the loads automatically from the second power source - instantaneously. As each of the eight output sockets is independent of the others, a short circuit or load fault is automatically isolated to prevent disruption to other loads or crashing of the MultiSwitch device itself. Users can set each of the output sockets to draw power from either of the sources or to switch off if one of them fails.
Multi Switch has a front panel advanced LCD technology to provide information on load VA status, alarms and key measurements. It also provides remote monitoring in the form of RS232 or Simple Network Management Protocol (SNMP) communications.
Multi Switch is designed for 19” rack mounting and is 2U high with a depth of 360mm.
Features
- full protection against mains failures and load faults
- dual power sources - two mains, two UPS or a combination of the two
- power source selection - A or B
- eight output sockets
- output socket control - power can be turned off to specific sockets
- flexible power sources
- designed for installation in a 19” rack-mount cabinet, 2U high 389mm deep
- LCD to provide measurements/alarms/states information
- remote monitoring serial interface - SNMP (N version) or RS232 (S version)
- no signal connection is required between Multi Switch and the power sources or supplied hardware
- configuration software provided as standard.
For larger systems please see Master Switch.



