7
NRS 2-50, NRS 2-51 - Installation & Operating Manual -
819179-05
NRS 2-50, NRS 2-51
Ambient temperature
when system is switched on 0 ° ... 55 °C
in operation –10 ... 55 °C
Transport temperature
–20 ... +80 °C (<100 hours), only switch on after a defrosting period of 24 hours.
Storage temperature
–20 ... +70 °C, only switch on after a defrosting period of 24 hours.
Relative humidity
Max. 95%, non-condensing
Approvals:
TÜV Certificate
VdTÜV Bulletin “Wasserstand 100” (Water Level 100):
Requirements for water level control and limiting equipment.
Type approval no.: TÜV · WR · XX-425
(see
name
plate)
UL/cUL (CSA) certification
UL 508 and CSA C22.2 No. 14-13, Standards for Industrial Control
Equipment.
File
E243189.
Technical data
Product package
NRS 2-50
1 level switch NRS 2-50
1 Installation & Operating Manual
NRS 2-51
1 level switch NRS 2-51
1 Installation & Operating Manual
continued
continued
