NNR24A

NNR24A Datasheet

NNR SERIES

Part	Datasheet
NNR24A	NNR24A (pdf)

Related Parts	Information
NNR220A	NNR220A
NNR110A	NNR110A

PDF Datasheet Preview
CONTROLS NNR SERIES LIQUID LEVEL CONTROL PUMP UP OR DOWN SWITCH SELECTABLE UL listed CSA recognized • 10 Amp SPDT Rated • Sensitivity Adjustment to 47 • One, Two or Three Probe Operation • 24 VAC to 220 VAC Voltages CONTROLS LEVEL min LEVEL SPECIFICATIONS: Input 24, 48, 110, 220 VAC ±15% 50/60 Hz Maximum power consumption 24 VAC VA 48 VAC VA 110 VAC 2 VA 220 VAC 2 VA Output SPDT relay Contact material AgCdO 90/10 Maximum loading 10 A AC resistive 1A DC inductive Maximum switching voltage 250 VAC 30 VDC Relay maximum power rating 2500 VA 30 VDC Mechanical life of relay 3 x 107 operations Electrical life of relay 2 x 105 at 2200 VA resistive load Probe isolation Switching contact 2000 VA Electrodes 2000 VAC Probe sensitivity K ohm to 47 K ohm Probe voltage 24 VAC, 60 Hz Probe current 2 mA max. Operating temperature +14°F to 140°F -10°C to +60°C Weight oz. 130g Note For best results use shielded cable with the probes and do not run probe cables with other wires. A - Pump down function the output relay energizes when the liquid level reaches the high or max. probe. It remains energized until the level is below the low or min probe. The relay will remain de-energized until the high level is again reached. This control may also be used with only two probes by connecting the maximum and common terminals together. The output is energized when the low probe is in contact with the liquid. B - Pump up function when power is supplied to the unit, the output relay is energized. When the level reaches the high probe the relay is de-energized. The relay is energized again when the level falls below the lob probe. The control may also be used with only two probes by connecting the maximum and common terminals together. The output is de-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 WIRING DIAGRAM: Pump Down 2 Pump Up 1 Max Min Common DIMENSIONS: ORDERING INFORMATION: MOUNTING SERIES 220A INPUT POWER MOUNTING N = Open PC Board SERIES NR Products and specifications subject to change without notice. Consult factory for application assistance. INPUT POWER 24A = 24 VAC 48A = 48 VAC 110A = 110 VAC 220A = 220 VAC 204 Airline Drive, Suite 300, Coppell, Texas 75019 / Tel 800 677-5311 / FAX 800 677-3865 / 5-6

PDF Datasheet Preview

CONTROLS

NNR SERIES

LIQUID LEVEL CONTROL PUMP UP OR DOWN SWITCH SELECTABLE

UL listed CSA recognized
• 10 Amp SPDT Rated
• Sensitivity Adjustment to 47
• One, Two or Three Probe Operation
• 24 VAC to 220 VAC Voltages

CONTROLS

LEVEL min

LEVEL

SPECIFICATIONS:

Input 24, 48, 110, 220 VAC
±15% 50/60 Hz

Maximum power consumption 24 VAC VA
48 VAC VA
110 VAC 2 VA
220 VAC 2 VA

Output SPDT relay

Contact material AgCdO 90/10

Maximum loading 10 A AC resistive 1A DC inductive

Maximum switching voltage 250 VAC
30 VDC

Relay maximum power rating 2500 VA
30 VDC

Mechanical life of relay 3 x 107 operations

Electrical life of relay 2 x 105 at 2200 VA resistive load

Probe isolation Switching contact 2000 VA

Electrodes 2000 VAC

Probe sensitivity K ohm to 47 K ohm

Probe voltage 24 VAC, 60 Hz

Probe current 2 mA max.

Operating temperature +14°F to 140°F -10°C to +60°C

Weight oz. 130g

Note For best results use shielded cable with the probes and do not run probe cables with other wires.

A - Pump down function the output relay energizes when the liquid level reaches the high or max. probe. It remains energized until the level is below the low or min probe. The relay will remain de-energized until the high level is again reached. This control may also be used with only two probes by connecting the maximum and common terminals together. The output is energized when the low probe is in contact with the liquid.

B - Pump up function when power is supplied to the unit, the output relay is energized. When the level reaches the high probe the relay is de-energized. The relay is energized again when the level falls below the lob probe. The control may also be used with only two probes by connecting the maximum and common terminals together. The output is de-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

WIRING DIAGRAM:

Pump Down 2 Pump Up 1

Max Min

Common

DIMENSIONS:
ORDERING INFORMATION:

MOUNTING

SERIES
220A

INPUT POWER

MOUNTING N = Open PC Board

SERIES NR

Products and specifications subject to change without notice.

Consult factory for application assistance.

INPUT POWER 24A = 24 VAC 48A = 48 VAC 110A = 110 VAC 220A = 220 VAC
204 Airline Drive, Suite 300, Coppell, Texas 75019 / Tel 800 677-5311 / FAX 800 677-3865 / 5-6

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived NNR24A Datasheet file may be downloaded here without warranties.

Datasheet ID: NNR24A 507180