6
Explanatory Notes
Scope of supply
URN 2, design “c”
1 Power supply unit type URN 2
2 Guide rails
1 32pole screw-type connector
1 Installation manual
URN 2, design “d”
1 Power supply unit type URN 2
1 Installation manual
Function
The mains voltage is stepped down, rectified and provided as 24 V DC supply
voltage to the level switches NRS 2-4 and the cycling timer PRS 9.
System description
The power supply unit type URN 2 in combination with up to four level switches
types NRS 2-4 or NRS 2-5 and the cycling timer type PRS 9 can be used as part of
a controlled drainage system in power stations.
Design
Design “c”
19" slide-in unit with guide rails and 32pole screw-type connector for installation in
19" magazine acc. to DIN 41494, part 5.
Design “d”
19" spare slide-in unit
