Versions:
• Type 11.31 Only 17.5 mm wide
• Type 11.41 "Zero hysteresis"
• Type 11.42 Two independent outputs
• Type 11.91 Light dependent relay & time switch integrated
• LED status indication
• Double insulation between supply and photosensor
• 35 mm rail (EN 60715) mount
• Cadmium free contact material
• Cadmium free photo sensor (IC photo diode)

• ideally suited for use in conjunction with Building Management Systems (BMS), Direct Digital Controllers (DDC), or in combination with PLC's.
• Status/Errors LED indications of PLC or BMS
• Manual bypass of PLC/BMS
• 7 different types of module available:
Status indicating modules
- Type 19.31, 1-channel status indicating module
- Type 19.32, 2-channel status indicating module Override control modules
- Type 19.21, Auto/Off/On output module
- Type 19.41, Override module - Auto/Off/Hand
- Type 19.42, Override module - Auto/Off/Low/High Analogue
Override control module
- Type 19.50, Analogue output module (0…10) V Power relay module
- Type 19.91, Power module for high current inrush loads
• 35 mm rail (EN 60715) mounting

• Temperature range (+5...+37°C )
• Supply voltage: 3 V DC (2 batteries alkaline 1,5 V type LR6)
• Summer/Winter switch
• 1 change over 5A 230V
• For wall mounting
• 18 mm thickness

Protects equipment against overvoltage caused by lightning strikes or switching transients
• Type 2 Surge arrester for single phase Systems
• Type 2 Surge arrester for three-phase systems
• Type 3 Surge arrester for incorporation within socket outlets
• Visual indication of Varistor status - Healthy/Replace
• Remote signalling contact of Varistor status Connector (07P.01) included
• Replaceable modules
• Complies with EN 61643-11
• 35 mm rail (EN 60715) mounting