Siemens RMZ78 Series, Manual, Page: 6 / 10

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Siemens Universal Modules CE1N3146en
Building Technologies 2016-03-10
Power supply external Voltage AC 24 V
devices (G1)
Current max. 4 A
Electrical connections
Connection terminals
spring cage terminals
For solid wires
0.6 mm dia.…2.5 mm
2
For stranded wires without ferules
0.25…2.5 mm
2
For stranded wires with ferules
0.25…1.5 mm
2
Protection Degree of protection of housing to IEC 60 529 IP20 (when mounted)
Safety class to EN 60 730
device suited for use with
equipment of safety class II
Environmental conditions
Operation to IEC 60 721-3-3
Climatic conditions class 3K5
Temperature (housing with electronics) 0…50 °C
Humidity 5…95 % r.h. (noncondensing)
Mechanical conditions class 3M2
Transport to
IEC 60 721-3-2
Climatic conditions
class 2K3
Temperature
25… 70 °C
Humidity
<95 % r.h.
Mechanical conditions
class 2M2
Classifications to Mode of operation, automatic controls type 1B
EN 60 730 Degree of contamination, controls environment 2
Software class A
Rated surge voltage 4000 V
Temperature for ball-test of housing 125 °C
Materials and colors Terminal base Polycarbonate, RAL 7035 (light-
grey)
Insert Polycarbonate, RAL 7035 (light-
grey)
Packaging
corrugated cardboard