Page 804 - Din prodcuts 2020

8/64 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

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Energy efficiency
Front-panel analogue instruments

Technical features
Rated max. reference voltage for [V] 600 (a.c meters), 300 (d.c. meters)
insulation
Test voltage [V] 2000 eff. (50 Hz/1 min)
Accuracy class 1.5 (0.5 for frequency meters)
Overload capacity a
- ammetric windings up to In x 10/< sec. up to In x 2/permanent
- voltmetric windings up to Un x 2/< 5 sec. up to Un x 1.2/permanent
Front panel analogue instruments
Operating temperature [°C] -10...+55
Storage temperature [°C] -40...+70
Average and max. relative 65% (yearly average)
humidity (DIN 40040) b 85% (+35 °C/60 days a year)
Vibration resistance (IEC 50-1) [g (9.81 m/s)] 0.08-1.8 (0.35 mm/10-55 Hz; 3 axis/6 h)
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Degree of protection IP52 indoors
IP00 on the terminals (IEC 144. DIN 40050)
IP20 with suitable terminal covers
Materials
- cases and front edge self-extinguishing thermosetting material
in accordance with UL94 V-0, fungus and termite
resistant
- pointers (DIN 43802) c molded aluminium
- terminals brass
Assembly vertical/horizontal with special screw-on brackets d
Dimensions W x H x D [mm] 48 x 48 X 53 72 x 72 x 53 96 x 96 X 53
(DIN 43700/43718)
Applicable standards IEC EN 61010-1

a The overload can be greater for instruments enabled by a CT because the transformer generally keeps secondary current
peaks to within 10 In.
b Tropicalization enables the instruments to withstand up to 95% max. relative humidity (+35 °C/60 days). In accordance
with DIN standard 40040, they must be protected against any penetration of humidity inside the device. Terminals,
screws, washers, bolts and magnets are galvanically protected against rust, while the electrical circuits are painted with
the special Multicolor PC52 varnish.
c The pointer damping time is 1 second. The recorded values are cleared by pressing the control provided.
d With 0.5 mm -19 mm thick panels, the screws must be attached in the fixing position nearest to the front edge of the
measuring device, whereas the 20 mm - 39 mm thick panels require the screws to be fixed in the position furthest away
from the front edge.