Siemens Milltronics BW500 Operating Instructions Manual page 26

Installation
5.2 Layout
• All field wiring must have insulation suitable for at least 250 V.
• DC input terminals shall be supplied from a source providing electrical isolation between
the input and output, in order to meet applicable safety requirements of IEC 61010-1.
• Relay contact terminals are for use with equipment having no accessible live parts and
wiring having insulation suitable for at least 250 V. The maximum allowable working
voltage between adjacent relay contact shall be 250 V.
• The non-metallic enclosure does not provide grounding between conduit connections.
Use grounding type bushings and jumpers.
Please note that the DC version of this layout will appear slightly differently.
Mounting the Enclosure
1. Remove the lid screws and open the lid to reveal the mounting holes.
2. Mark and drill four holes in the mounting surface for the four screws (customer supplied).
3. Fasten with a long screwdriver.
①
Note
• Recommended mounting: directly to wall or to electrical cabinet back panel with #6
screws
• If alternate mounting surface is used, it MUST be able to support four times the weight of
the unit.
24
WARNING
Mounting holes
BW500 and BW500/L
Operating Instructions, 12/2016, A5E33482052-AD