KNX bin. inp. | 8x AC/DC 12...230 V and 8x pot.-free inp. N 264E11

Information

Datasheet

Siemens KNX 8-fold Binary Input

The Siemens KNX Binary Input N 264E/11 offers 8 inputs for potential-free contacts and 8 inputs for AC/DC voltages from 12 to 230 V. The device is suitable for monitoring switching states, voltage levels, and pulse counting, making it ideal for flexible use in KNX automation systems.

Main Features

• 8 inputs for potential-free contacts (a...h) and 8 voltage inputs (A...H) for AC/DC 12-230 V
• Status indication with LED for each input; LED lights up when voltage is present or contact is closed
• Supports short and long button presses, switching, dimming (1- and 2-button dimming), and shutter control
• Configurable functions such as anti-bounce time, telegram limits, and contact type (NO/NC)
• Pulse counting possible with or without threshold monitoring (8-bit, 16-bit, 32-bit)
• Integrated power supply for electronics via AC 230 V, with a power consumption of max. 1.7 W

Technical Specifications

• Power Supply:
  • Bus voltage via KNX line (DC 21-30 V, SELV)
  • Integrated power supply AC 230 V (+10% / -15%), 50/60 Hz
  • Bus current: 5 mA (half the standard KNX bus load)
• Inputs:
  • 8 inputs for potential-free contacts (a...h) with a maximum cable length of 100 m
  • 8 voltage inputs (A...H) for AC/DC 12-230 V, connectable to different phases (L1, L2, L3) or a FELV signal
  • Signal delay for input detection: 60-140 ms, depending on voltage type (AC or DC)
  • Maximum switching frequency: 5 Hz
  • Minimum switch-on time: 100 ms (AC), 60 ms (DC)
  • Minimum switch-off time: 100 ms (AC), 140 ms (DC)
• Connections:
  • Power supply and inputs: screwless terminals, stripping length 9-10 mm
  • KNX bus: push contacts on the DIN rail, bus terminals Ø 0.6-0.8 mm
  • Permitted wire cross-sections: 0.5-2.5 mm² solid, 0.5-1.5 mm² stranded with ferrule
• Protection class: IP20
• Installation: DIN rail mounting, 6 modules wide (1 module = 18 mm)
• Dimensions: For DIN rail mounting, 6 modules wide
• Weight: Approximately 325 g
• Electrical Safety:
  • Overvoltage category: III (according to IEC 60664-1)
  • Pollution degree: 2 (according to IEC 60664-1)
  • Bus: Safety extra-low voltage SELV DC 24 V
• Environmental Conditions:
  • Operating temperature: -5°C to +45°C
  • Storage temperature: -25°C to +70°C
  • Relative humidity: 5% to 93% (non-condensing)
• Certifications: Complies with EN 50090-2-2, CE marked

Applications

This binary input device is ideal for use in KNX systems for monitoring voltages, switches, alarms, faults, and other states. It supports both automatic and manual operation, including shutter and light control, and offers flexibility for specific installation requirements.

Important Note

After unloading the ETS application program, the device will no longer function. Ensure the configuration is always correctly loaded to guarantee operation. The status of the inputs will also not be displayed if the configuration is missing.