64891 U-xxx Sub-insert flex Mounting and Technical Specifications

This document provides mounting, connection, and technical specifications for the Busch-Jaeger 64891 U-xxx Sub-insert flex, a modular extension unit used to expand the detection range of presence detectors, motion detectors, and comfort switch applications. It details the device's intended use, technical data (230 V AC, IP20, max 100 m cable length), modular system compatibility with relay, blind, and dimmer inserts, and safety warnings for electrical installation.