Flowmeter with Single NCL Switching Point

NCL and NCH switch types.

NCH stands for "normally closed high" - when the top of the orange internal float is above the switch, the contacts will be closed.

NCL stands for "normally closed low" - when the top of the orange internal float is lower than the switch, the contacts are closed.

Most alarm systems operate on a "normally closed" basis - so when the alarm condition occurs, the contacts open, triggering the alarm. This acts as a fail safe in case the cable is damaged or broken as, detecting a break in the system, the alarm will activate.

If you require a different switching combination, please call us.

Products Total Items: 7
20mm Flowmeter with one adjustable NCL switching point
Ref: 2980
25-250 lph. Plain union PVC ends
NCL switch - closed contacts on low flow, open on high
Maximum 24v ac-dc, 0.5A
Approximately 10 day delivery time.
£76.65 (£91.98 inc VAT)
20mm Flowmeter with one adjustable NCL switching point
Ref: 2981
100-1000 lph. Plain union PVC ends
NCL switch - closed contacts on low flow, open on high
Maximum 24v ac-dc, 0.5A
Approximately 10 day delivery time.
£76.65 (£91.98 inc VAT)
32mm Flowmeter with one adjustable NCL switching point
Ref: 2982
250-2500 lph. Plain union PVC ends
NCL switch - closed contacts on low flow, open on high
Maximum 24v ac-dc, 0.5A
Approximately 10 day delivery time.
£89.75 (£107.70 inc VAT)
40mm Flowmeter with one adjustable NCL switching point
Ref: 2983
0.6-6m3/h. Plain union PVC ends
NCL switch - closed contacts on low flow, open on high
Maximum 24v ac-dc, 0.5A
Approximately 10 day delivery time.
£119.03 (£142.84 inc VAT)
63mm Flowmeter with one adjustable NCL switching point
Ref: 2984
1.6-16 m3/h. Plain union PVC ends
NCL switch - closed contacts on low flow, open on high
Maximum 24v ac-dc, 0.5A
Approximately 10 day delivery time.
£190.35 (£228.42 inc VAT)
75mm Flowmeter with one adjustable NCL switching point
Ref: 2985
8-40 m3/h. Plain union PVC ends
NCL switch - closed contacts on low flow, open on high
Maximum 24v ac-dc, 0.5A
Approximately 10 day delivery time.
£358.59 (£430.31 inc VAT)
75mm Flowmeter with one adjustable NCL switching point
Ref: 2986
12-60 m3/h. Plain union PVC ends
NCL switch - closed contacts on low flow, open on high
Maximum 24v ac-dc, 0.5A
Approximately 10 day delivery time.
£358.59 (£430.31 inc VAT)
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