Wiring; Connection Requirements; Quick Wiring Guide - Endress+Hauser EngyCal RH33 Handbuch

EngyCal® RH33
4

Wiring

4.1

Connection requirements

#
Warning!
Note that the entire electrical connection must be carried out only while the device is
de-energized.
"
Caution!
• Before commissioning, ensure that the supply voltage corresponds to the specification on the
nameplate.
• Provide a suitable switch or power-circuit breaker in the building installation. This switch
must be installed close to the device (so that it is easily accessible) and marked as a circuit
breaker.
• An overload protection unit (rated current = 10 A) is required for the power cable.
For installing the BTU meter and the associated components, observe the general instructions
according to EN 1434 Part 6.
4.2

Quick wiring guide

Fig. 15: Connection diagram of the BTU meter
Endress+Hauser
Wiring
a0013439
19