MDT - Switch Actuator 4-fold, 4SU MDRC, 16A, 230VAC, C-load, standard, 140uF

The MDT Switch Actuator receives KNX/EIB telegrams and switches up to 20 independent electrical loads. Each output uses a bistable relay and can be operated manually via a push button. A green LED indicates the switching status of each channel. The MDT Switch Actuator is suitable for high inrush currents and used for heavy loads (C-Load).

The outputs are parameterized individually via ETS3/4. The device provides extensive functions like logical operation, status response, block functions, central function, delay functions and staircase lighting function. Additionally the device provides several time and scene control. If the mains voltage fails, all outputs hold their current position. After bus voltage failure or recovery the relay position is selected in dependence on the parameterization.

The MDT Switch Actuator has separate power supply terminals for each channel and are very space saving by ideal form factor.

The MDT Switch Actuator is a modular installation device for fixed installation in dry rooms. It fits on DIN 35mm rails in power distribution boards or closed compact boxes. 

Features

• Production in Germany, certified according to ISO 9001
• Space saving design
• Comprehensive function extension
• Lockable manual operation and LED indicator for each channel
• NO and NC contact operation
• Status response at manually operation
• Time functions (switch-on/switch-off delay, staircase light functions)
• Extended logical and scene functions for each channel
• Extended status functions (inverted, cyclic, at block)
• Treshold switch (Byte/2Byte/2Byte float)
• Hour meter for switching
• Priority/forced operation with automatic release time
• Quick application download (long frame support for ETS5)
• Power supply via KNX bus
• Integrated bus coupling unit
• 3 years warranty

Technical Specifications

• Number of outputs: 4
• Output switching ratings
  • Ohmic load: 16A
  • Capacitive load: 140uF
  • Voltage: 230VAC
• Maximum inrush current: 
• 600A/150µs
• 250A/600µs
• Maximum load
  • Incandescent lamps: 2500W
  • Halogen lamps 230V: 2500W
  • Halogen lamps, electronic transformer: 1500W
  • Fluorescent lamps, not compensated: 2300W
  • Fluorescent lamps, parallel comp.: 1500W
  • Max. number of electronic transformer: 20
• Output life expectancy (mechanical): 1'000'000
• Max. total current of the actuator: 64A
• Specification KNX interface: TP-256 with long frame support for ETS5
• Available application software: ETS 4/5
• Permitted wire gauge
  • Screw terminal: 0,5 - 4,0mm² solid core/finely stranded / 2x 0.5 - 2.5mm2 solid core / finely stranded (no mix allowed)
  • KNX busconnection terminal: 0,8mm Ø, solid core
• Torque screw terminal: 0.5Nm
• Power supply: KNX bus
• Power consumption KNX bus typ.: < 0,25W
• Operation temperature range: 0 to + 45°C
• Enclosure: IP 20
• Dimensions MDRC (Space Units): 4SU