West Control Solutions TB 45 Temperature Limiter - Manual (Page 15)

4.5 Hints for installation
• Measurement and data lines should be kept separate from control and power supply cables.
• Sensor measuring cables should be twisted and screened, with the screening connected to earth.
• External contactors, relays, motors, etc. must be fitted with RC snubber circuits to manufacturer specifications.
•
The unit must not be installed near strong electric and magnetic fields.
• The temperature resistance of connecting cables should be selected appropriately for the local conditions.
a
The unit is not suitable for installation in explosion-hazarded areas.
a
Faulty connection can lead to the destruction of the instrument.
a
The measuring inputs are designed for measurement of circuits which are not connected directly with the
local mains (CAT I). The measuring inputs are designed for transient voltage peaks up to 800 V against PE.
a
Please, follow the instructions given in the safety hints (see page 7).
Electrical connections
TB 45 Hints for installation 15