Intermediate unit BI-22R1


  • arrangement of RS-485 data transfer channel
  • power input/output for DU/DD
  • DU/DD discrete signals output to external devices

Performance specification

Terminal pack is intended for the following core cross-section values

0,08 - 2,50 mm2

Core fastening method

spring clamp

Number of sealed lead-ins

6 pcs.

Operating temperature range

0 to +55 °С

Operating humidity range

up to 98 % at +35 °С

Operating pressure range

84,0 to 106,7 °С

Protection index


Seismic stability

I category according to NP-031-01

Dimensions and weight

200х129х260 mm; not more than 5,5 kg


220 (-15; + 10 %) V

Power output

25 VA

Corresponds to 3N class requirements according to NP-001-97 (OPB-88/97)