Description
The Siemens Landis & Staefa NRUF/A is a programmable compact controller in the legacy INTEGRAL AS1000 building automation range. This unit carries the designation NRUF/A T1/L&S Ni1000; use NRUF/A T1/L&S as the part reference when matching a replacement.
Technical specifications
- Model: NRUF/A compact controller
- Product family: INTEGRAL AS1000
- Nominal supply: 24 V AC, 50/60 Hz
- Digital inputs: 8
- Universal inputs: 16, configurable for T1, 0–10 V DC, digital or NMID multiplexer connection
- Digital outputs: 16 potential-free normally open contacts, rated up to 2 A and 45 V AC/DC maximum
- Analog outputs: 8, 0–10 V DC, maximum source/sink current 2 mA
- Communication: isolated RS bus, 9600 baud
- Power consumption: up to 12.5 VA without output peripherals or 20 VA with output peripherals
- Dimensions: 265 × 292 × 100 mm
- Weight: 4 kg excluding packaging
- Installation: vertical mounting inside a control panel
Application and replacement guidance
The NRUF/A is designed for programmable local control, interlocking and energy management in HVAC installations. The exact T1/L&S Ni1000 designation should be matched against the existing installation, sensor interface and controller configuration before ordering as a replacement. Confirm the wiring and programmed application before commissioning.
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