Name: Triton LR07 WRAS Potable Water Float Switch 20m LR07-L20M
Brand: Triton
SKU: LR07-L20M
Price: 165.91 GBP
Availability: InStock

Triton LR07 WRAS Potable Water Float Switch 20m LR07-L20M

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Established 1975
Trusted by thousands of customers

The Triton LR07-L20M is a WRAS approved, non-mercury float switch made for potable water: break tanks, cold water storage, cisterns and booster sets. A sealed polypropylene float houses a steel roller ball and microswitch, moulded to 20 m of 3-core EPDM cable.

Its changeover (SPDT) contact switches a pump directly up to 15 A resistive at 250 V, and can be wired to fill or empty a tank. Made in the UK by Triton Controls.

20 m

EPDM cable

15 A

at 250 V resistive

WRAS

potable water approved

20 m

max submerged depth

Non-mercury
SPDT changeover
Fill or empty
Polypropylene float
EPDM cable
Made in the UK

Cold potable water only: max liquid temperature 23°C. For wastewater, sewage or warmer liquids, use the Triton LR02.

Full Description

More about this product

Full Description

Triton LR07 potable water float switch, 20 m

The Triton LR07-L20M is a non-mercury level regulator designed for drinking water and consumable liquids. The float is a sealed polypropylene casing moulded to 20 m of 3-core EPDM cable. Inside, a steel roller ball operates a microswitch as the float tilts, giving a clean single pole, double throw (changeover) contact with no mercury or heavy metals.

As the water level rises or falls, the LR07 starts or stops a pump, opens a solenoid valve or triggers an alarm. Wire one side of the switch to fill a tank, or the other side to empty it. The 20 m cable suits deep tanks and long runs back to the control panel.

WRAS approved: suitable for contact with wholesome (drinking) water in UK installations.

Specifications

Part number	LR07-L20M
Cable length	20 m (±5%)
Switch type	SPDT changeover microswitch, roller ball operated (non-mercury)
Contact rating	250 V 15 A non-inductive; 250 V 10 A inductive (1.3 hp)
Float material	Polypropylene, fully sealed
Cable	3-core EPDM: brown, blue, black
Float size	103 × 81 mm
Approx. weight	2.2 kg
Max liquid temperature	23°C
Max submerged depth	20 m
Compressive strength	482 kN/m² (70 lbf/in²)
Specific gravity range	0.9 to 1.3
Approval	WRAS approved for potable water
Manufacturer	Triton Controls, made in Great Britain

Wiring

Leads used	Contact closes when	Typical use
Brown + Black	Float rises	Emptying: pump starts on high level
Brown + Blue	Float falls	Filling: pump or valve starts on low level; low-level / dry-run alarm

Brown is the common lead. Insulate whichever lead you don’t use. Single-phase pumps up to 10 A inductive can be switched directly. Larger or three-phase motors should be switched through a contactor or control panel.

Applications

Break tanks & booster sets

Low-level cut-out to protect booster pumps from running dry.

Cold water storage

Automatic refill control for potable storage tanks and cisterns.

Borehole & private supply

Fill control of header and storage tanks fed by borehole pumps.

Level alarms

High or low-level signal to an alarm panel or BMS.

Cable length options

Part number	Cable length
LR07-L05M	5 m
LR07-L10M	10 m
LR07-L20M (this listing)	20 m

Installation tips

Allow at least 330 mm of free movement so the float can tilt fully. Switching points are approximate.
Set the switching level with the optional stabilising weight. It fixes anywhere on the cable with the supplied O-ring and cable tie.
In open or turbulent tanks, clip the cable to the tank wall to stop the float drifting.
Where turbulence causes rapid on/off switching, use a maintaining (latching) circuit to protect the microswitch and pump starter.

FAQs

Is the LR07 approved for drinking water?

Yes. The LR07 is WRAS approved, with a polypropylene float and EPDM cable, and contains no mercury.

Can one switch fill and empty a tank?

Yes. Use brown and black to empty (closes on rising level) or brown and blue to fill (closes on falling level).

Will it switch my pump directly?

Single-phase pumps up to 10 A inductive (about 1.3 hp) at 250 V, yes. Use a contactor or control panel for larger or three-phase pumps.

Can I use it in wastewater or hot water?

No. The LR07 is rated to 23°C for clean potable water. For sewage, wastewater or fats, use the Triton LR02.

What if I need more than 20 m of cable?

20 m is the longest standard length. Other cable lengths can be made to order by Triton, so ask us for a price.

Downloads

Data Sheet PDF
Download

Delivery Information

Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.

Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).

Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.

Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.

Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.