Syrelec, Brand of Crouzet Control NR SERIES Data Sheet
CONTROLS CONTROLS
Products and specifications subject to change without notice.
Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
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2
NR SERIES
LIQUID LEVEL CONTROL
PUMP DOWN
UL listed CSA recognized
• 24 VAC to 220 VAC Operating Voltages
• 4.7 kΩ to 100 kΩ Sensitivity
• LED Relay Indicator
• 10 Amp SPDT Relay
SPECIFICATIONS:
Input . . . . . . . . . . . . . . . . . . . . . . . . 24, 48, 110, 220 VAC ±15% (50/60 Hz)
Maximum power consumption . . . 24 VAC: 1.5 VA
48 VAC: 1.7 VA
110 VAC: 2 VA
220 VAC: 2 VA
Output . . . . . . . . . . . . . . . . . . . . . . SPDT relay
Contact material . . . . . . . . . . . . . . AgCdO
Maximum loading . . . . . . . . . . . . . 10AAC resistive 8A DC inductive
Maximum switching voltage . . . . . 250 VAC 250 VDC
Relay maximum power rating . . . . 2500 VA 80 W
Mechanical life of relay . . . . . . . . . 3 x 107operations
Electrical life of relay . . . . . . . . . . . 2 x 105at 2200 VA resistive load
Probe isolation . . . . . . . . . . . . . . . . Electrodes: 2000 VAC
Probe sensitivity . . . . . . . . . . . . . . 4.7 K to 100 K ohms
Probe voltage . . . . . . . . . . . . . . . . 24 VAC, 60 Hz
Probe current . . . . . . . . . . . . . . . . . 2 mA max.
Operating temperature . . . . . . . . . +14°F to 140°F -10°C to +60°C
Weight . . . . . . . . . . . . . . . . . . . . . . 4.6 oz. (130g)
MOUNTING
D = DIN-rail or panel mounting
L = 11 pin plug-in
P = 8 pin plug-in
SERIES
NR
P
MOUNTING
NR
SERIES
110A
INPUT POWER
INPUT POWER
24A = 24 VAC
48A = 48 VAC
110A = 110 VAC
220A = 220 VAC
WIRING DIAGRAM:
ORDERING INFORMATION:
The output relay energizes when the liquid level reaches the high
probe. The relay de-energizes when the liquid falls below the low
probe. This control can also be used with only two probes by connecting the maximum and common terminals together. The output is
energized when the level reaches the low probe. In both functions,
if the container is conductive, it may be used as the common probe
in some applications.
11
12 14
C
R
1
2
3
4
5
6
7
8
9
10
11
1
2
3
45
6
7
8
A1
A2
RR
SSS
Max C C Max
min Max
˜
˜
min min
DNR LNR PNR
S
Max
LEVEL
R
S
LEVEL
min
R
t0
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