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23 December 2025

CANFORD OPTO SWITCHER

Stock code
42-682
Brand
Canford
Model number
  • OPTO SWITCHER
CANFORD OPTO SWITCHER
CANFORD OPTO SWITCHERCANFORD OPTO SWITCHERCANFORD OPTO SWITCHERCANFORD OPTO SWITCHER

OPTO SWITCHER

Please note that this version has now been replaced by the Mk.2 version, stock code 42-6701.

This free-standing unit allows the remote switching of mains powered equipment such as illuminated signs, cue lights etc., while maintaining electrical isolation from the mains. Control on type 42-682 is implemented using either a closing contact across XLR pins 1 & 3, or by applying 5-15 volts DC across XLR pins 2 & 3. Switching occurs at the zero-crossing point of the mains cycle, which, together with spike suppression components, ensures that interference is virtually eliminated. Mains input and output connectors are IEC (CEE22) 3 pole with a 20mm fuse on the input line. The control input uses an XLR 3 pin female panel connector.

Mating connector stock codes:

IEC mains input 42-154
IEC mains output 42-153
XLR control input 40-322

Technical Specification:

Mains input: 230V AC
Fuse: 20mm, 6.3A (T) HRC (stock code 42-275)
Mains output: 1.5kW
Contact closure output: 5V DC at 17mA (close to switch load on)
DC input: 5-15V DC (pin 2 positive) (high to switch load on)
5V DC at 9mA
15V DC at 40mA

The control voltage may be increased up to 50V DC by adding a 1k resistor in series with the positive input.

Control to mains isolation: 1.5kV
Dimensions: 107mm ×93mm ×50mm
Weight: 320g

Application note: The switcher can supply a current of up to 8mA when switched off, so it may not be suitable for driving very light loads e.g. some LED lights etc.

WARNING: THE CASE IS CONNECTED TO MAINS EARTH – ALWAYS USE MAINS EARTH!