7
NRS 2-50, NRS 2-51
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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
Approvals:
TÜV certificate
VdTÜV Bulletin “Water Lever 100” (= Water Level 100):
Requirements made on water level limiting & control equipment.
Type approval no. TÜV · WR · XX-426 (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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Scope of supply
NRS 2-50
1 Level switch NRS 2-50
1 Installation manual
NRS 2-51
1 Level switch NRS 2-51
1 Installation manual
