10
NRS 1-51
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Further conditions:
Ambient temperature
when system is switched on: 0 ... 55 °C
during operation: –10 ... 55 °C
Transport temperature
–20 ... +80 °C (< 100 hours), defrosting time of the de-energized equipment before it can be put into
operation: 24 hours.
Storage temperature
–20 ... +70 °C, defrosting time of the de-energized equipment before it can be put into operation:
24 hours.
Relative humidity
max. 95%, no moisture condensation
Site altitude
max. 2000 m
Approvals
EC Prototype approval
PED Pressure Equipment Directive 2014/68/EU
EN 12952-11, EN 12953-09: Requirements made on
limiting equipment for boilers.
Functional safety
IEC 61508 Functional safety of safety-related electrical/
SIL 3
electronic/programmable electronic systems
TÜV type approval
VdTÜV Bulletin “Wasserstand 100” (= Water Level 100):
Requirements made on water level limiting & control equipment.
Type approval no. TÜV · SHWS · XX-423
(see
name
plate)
UL/cUL (CSA) Approval
UL 508 and CSA C22.2 No. 14-13, Standards for Industrial Control
Equipment.
File
E243189.
Technical Data
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Summary of Contents for NRS 1-51
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