Skip to main content Skip to search Skip to main navigation

Float Switches

A float switch is an electric level control sensor for submersible pumps, sump pump chambers, water tanks and rainwater harvesting tanks to detect low- and high-level switching points.

 

Float Switch to empty and to fill a tank

Float switches are available in versions to empty a pump chamber (function: emptying) or to fill a water or rainwater harvesting tank (function: filling). Some float switches are also available with crossover-contacts which enable both emptying and filling functions (duplex function).

 

High Level Alarm

A float switch with emptying function can also be used as a high level alarm in a sump chamber, wastewater treatment system and septic tank.

 

Low Level Alarm

A low level alarm within a water tank, intermediary buffer tank or rainwater harvesting tank can be used to activate an alarm or to trigger a secondary backup for automatic uninterrupted water supply. This principle is used at rainwater harvesting installations to provide automatic switch-over to mains-water or well-water supply in case the primary supply of rainwater is depleted.

SAFETY NOTICE: due to submerged operation, a float switch with earth conductor (PE) is recommended at any installation with up to 250V. All float switches supplied by GEMGATE Limited are equipped with an earth conductor!

Filter products
Duplex Float-Switch with 5m cable
Float Switch 10m | Emptying & Filling

Cable material: H05RN-F, 4 x 0.75mm² Cable length: 10m | 4x core cable (L-L1-L2-PE) with protective earth conductor (PE) 10(6) A | 250 V | IP68 Dimensions (mm): 68 x 90 x 41T(max) = 40°C | Storage(max) = 95°CFunction: emptying + fillingSwitching angle: ±45° Material: PP (non-toxic polypropylene) Certifications: VDE, CE | Made in Germany   This float switch is equipped with crossover-contacts for duplex functions: emptying + filling. Installing one float-switch with dual-functionality is required if both conditions (up/down) are of importance at the installation. In the upward position the contact between L & L1 is closed while the contact between L & L2 is opened. In the downward position the contact between L & L1 is opened but closed between L & L2.   Applications: - emptying (cores: brown + blue) level-controlled operation (ON/OFF) of a submersible pump in a sump chamber high level alarm in a sump chamber or tank pump dry-run protection; low-level device in a tank The float switch in the upward position activates the pump or high level alarm and can be used in wastewater pump stations, drainage sump chambers, sewage treatment plants and septic tanks.   Installed as a low-level device in a rainwater harvesting tank, the float switch can also provide pump dry-run protection.   Applications: - filling (cores: brown + black) level-controlled filling (ON/OFF) of tanks; header tank, intermediary buffer-tank low level alarm in a tank or reservoir low level signal of rainwater harvesting tank   The float switch in the downward position activates an external solenoid-valve or pump to supply water to the tank. The low level alarm or signal can be used to activate an emergency signal or to display a status on a control panel. It can also be used to trigger a backup supply (e.g. automatic switch-over from rainwater to well-water, if rainwater tank is empty).   Brown = L; phase/power supplyBlue = L1; to pump or alarm | (emptying)Black = L2; to pump, solenoid-valve or alarm/signal | (filling)Green/Yellow = PE (earth conductor)   SAFETY NOTICE: due to submerged operation, a float switch with earth conductor (PE) is recommended at any installation with up to 250V. All float switches supplied by GEMGATE Limited are equipped with an earth conductor!

Regular price: €114.39
Net price: €93.00 - VAT: €21.39
Hint!
Float Switch with 10m cable | emptying
Float Switch 10m | Emptying | G

3x 1.0mm² cable (L-L1-PE) | Cable Type: HO7RN-F Cable length: 10m | 3x core cable (L-L1-PE) with protective earth-conductor (PE)10(6) A | 250 V | IP68 Function: emptying Switching angle: ±45° Material: non-toxic polypropylene Dimensions (mm): 80.5 x 165 x 42T(max.): 85°C Certifications: VDE, ENEC, CE | Made in Germany   The float switch in the upward position closes the contact between L & L1. In the downward position the contact between L & L1 is opened.   Applications: level-controlled operation (ON/OFF) of a submersible pump in a sump chamber high level alarm in a sump chamber or tank pump dry-run protection; low-level device in a tank   The float switch activates the pump or high level alarm and can be used in wastewater pump stations, drainage sump chambers, sewage treatment plants and septic tanks.   Installed as a low-level device in a rainwater harvesting tank, the float switch can also provide pump dry-run protection.   Brown = L; phase/power supply Blue = L1; to pump or alarm Green/Yellow = PE (earth conductor)   SAFETY NOTICE: due to submerged operation, a float switch with earth conductor (PE) is recommended at any installation with up to 250V. All float switches supplied by GEMGATE Limited are equipped with an earth conductor!   Item is being been phased-out/discontinued - only limited stock remaining!

Regular price: From €79.15
Net price: €64.35 - VAT: €14.80
Duplex Float-Switch with 5m cable
Float Switch 20m | Emptying & Filling

Cable material: H05RN-F, 4 x 0.75mm² Cable length: 20m | 4x core cable (L-L1-L2-PE) with protective earth conductor (PE) 10(6) A | 250 V | IP68 Dimensions (mm): 68 x 90 x 41T(max) = 40°C | Storage(max) = 95°CFunction: emptying + fillingSwitching angle: ±45° Material: PP (non-toxic polypropylene) Certifications: VDE, CE | Made in Germany   This float switch is equipped with crossover-contacts for duplex functions: emptying + filling. Installing one float-switch with dual-functionality is required if both conditions (up/down) are of importance at the installation. In the upward position the contact between L & L1 is closed while the contact between L & L2 is opened. In the downward position the contact between L & L1 is opened but closed between L & L2.   Applications: - emptying (cores: brown + blue) level-controlled operation (ON/OFF) of a submersible pump in a sump chamber high level alarm in a sump chamber or tank pump dry-run protection; low-level device in a tank The float switch in the upward position activates the pump or high level alarm and can be used in wastewater pump stations, drainage sump chambers, sewage treatment plants and septic tanks.   Installed as a low-level device in a rainwater harvesting tank, the float switch can also provide pump dry-run protection.   Applications: - filling (cores: brown + black) level-controlled filling (ON/OFF) of tanks; header tank, intermediary buffer-tank low level alarm in a tank or reservoir low level signal of rainwater harvesting tank   The float switch in the downward position activates an external solenoid-valve or pump to supply water to the tank. The low level alarm or signal can be used to activate an emergency signal or to display a status on a control panel. It can also be used to trigger a backup supply (e.g. automatic switch-over from rainwater to well-water, if rainwater tank is empty).   Brown = L; phase/power supplyBlue = L1; to pump or alarm | (emptying)Black = L2; to pump, solenoid-valve or alarm/signal | (filling)Green/Yellow = PE (earth conductor)   SAFETY NOTICE: due to submerged operation, a float switch with earth conductor (PE) is recommended at any installation with up to 250V. All float switches supplied by GEMGATE Limited are equipped with an earth conductor!

Regular price: €143.91
Net price: €117.00 - VAT: €26.91
Duplex Float-Switch with 5m cable
Float Switch 5m | Emptying & Filling

Cable material: H05RN-F, 4 x 0.75mm² Cable length: 5m | 4x core cable (L-L1-L2-PE) with protective earth conductor (PE)10(6) A | 250 V | IP68 Dimensions (mm): 68 x 90 x 41T(max) = 40°C | Storage(max) = 95°CFunction: emptying + fillingSwitching angle: ±45° Material: PP (non-toxic polypropylene) Certifications: VDE, CE | Made in Germany   This float switch is equipped with crossover-contacts for duplex functions: emptying + filling. Installing one float-switch with dual-functionality is required if both conditions (up/down) are of importance at the installation. In the upward position the contact between L & L1 is closed while the contact between L & L2 is opened. In the downward position the contact between L & L1 is opened but closed between L & L2.   Applications: - emptying (cores: brown + blue) level-controlled operation (ON/OFF) of a submersible pump in a sump chamber high level alarm in a sump chamber or tank pump dry-run protection; low-level device in a tank The float switch in the upward position activates the pump or high level alarm and can be used in wastewater pump stations, drainage sump chambers, sewage treatment plants and septic tanks.   Installed as a low-level device in a rainwater harvesting tank, the float switch can also provide pump dry-run protection.   Applications: - filling (cores: brown + black) level-controlled filling (ON/OFF) of tanks; header tank, intermediary buffer-tank low level alarm in a tank or reservoir low level signal of rainwater harvesting tank   The float switch in the downward position activates an external solenoid-valve or pump to supply water to the tank. The low level alarm or signal can be used to activate an emergency signal or to display a status on a control panel. It can also be used to trigger a backup supply (e.g. automatic switch-over from rainwater to well-water, if rainwater tank is empty).   Brown = L; phase/power supplyBlue = L1; to pump or alarm | (emptying)Black = L2; to pump, solenoid-valve or alarm/signal | (filling)Green/Yellow = PE (earth conductor)   SAFETY NOTICE: due to submerged operation, a float switch with earth conductor (PE) is recommended at any installation with up to 250V. All float switches supplied by GEMGATE Limited are equipped with an earth conductor!

Regular price: €84.87
Net price: €69.00 - VAT: €15.87
Hint!
Float Switch with 5m cable | emptying
Float Switch 5m | Emptying | G

3x 1.0mm² cable (L-L1-PE) | Cable Type: HO7RN-F Cable length: 5m | 3x core cable (L-L1-PE) with protective earth-conductor (PE)10(6) A | 250 V | IP68 Function: emptying Switching angle: ±45° Material: non-toxic polypropylene Dimensions (mm): 80.5 x 165 x 42T(max.): 85°C Certifications: VDE, ENEC, CE | Made in Germany   The float switch in the upward position closes the contact between L & L1. In the downward position the contact between L & L1 is opened.   Applications: level-controlled operation (ON/OFF) of a submersible pump in a sump chamber high level alarm in a sump chamber or tank pump dry-run protection; low-level device in a tank   The float switch activates the pump or high level alarm and can be used in wastewater pump stations, drainage sump chambers, sewage treatment plants and septic tanks.   Installed as a low-level device in a rainwater harvesting tank, the float switch can also provide pump dry-run protection.   Brown = L; phase/power supply Blue = L1; to pump or alarm Green/Yellow = PE (earth conductor)   SAFETY NOTICE: due to submerged operation, a float switch with earth conductor (PE) is recommended at any installation with up to 250V. All float switches supplied by GEMGATE Limited are equipped with an earth conductor!   Item is being been phased-out/discontinued - only limited stock remaining!

Regular price: From €48.59
Net price: €39.50 - VAT: €9.09
Float-Switch with 10m cable for Mains Water Top-Up
WISY Float-Switch | 10m cable | for Mains Water Top-Up

Cable material: H07RN8-F, 3x 1.0mm² Cable length: 10m | 3x core cable (L-L1-PE) with protective earth conductor (PE) 10(8) A | 250 V | IP68 Material Float: PP (non-toxic polypropylene) | Dimensions (mm): 68 x 90 x 41 | Colour: yellow T(max) = 40°C | Storage(max) = 95°CFunction: filling Switching angle: ±45° Certifications: VDE, CE | Made in Germany   Float Switch for Rainwater Tank mains top up Low-level Float Switch located inside a rainwater harvesting tank or header tank to activate a solenoid-valve, back-up supply, pump or low-level signal/alarm.   The float switch in the downward position closes the contact between L & L1. In the upward position the contact between L & L1 is opened.   Applications: - filling level-controlled filling (ON/OFF) of tanks; rainwater tank, header tank, intermediary buffer-tank low level signal/alarm of rainwater harvesting tank   The float switch in the downward position activates an external solenoid-valve or pump to supply water to the tank. The low level alarm or signal can also be used to activate an emergency signal or to display a status on a control panel. It can also be used to trigger a backup supply (e.g. automatic switch-over from rainwater to well-water, if rainwater tank is empty).   Connection is either possible directly to solenoid-valve, pump or indirectly to the rainwater harvesting control panel.   The float switch for mains water top-up is an emergency back-up in order to ensure continuous automatic supply at a rainwater harvesting system or water-supply system, in case the primary water supply source (e.g. low level inside rainwater tank) is not available.   Brown = L; phase/power supply Blue = L1; to solenoid-valve, low level alarm, back-up supply or rainwater control panel Green/Yellow = PE (earth conductor)   SAFETY NOTICE: due to submerged operation, a float switch with earth conductor (PE) is recommended at any installation with up to 250V. All float switches supplied by GEMGATE Limited are equipped with an earth conductor!

Regular price: €109.47
Net price: €89.00 - VAT: €20.47
Float-Switch with 20m cable for Dry-Run Protection | Clamp & Lever
WISY Float-Switch | 20m cable | Dry-Run Protection - Clamp & Lever

Cable material: H07RN8-F, 3x 1.0mm² Cable length: 20m | 3x core cable (L-L1-PE) with protective earth conductor (PE) 10(8) A | 250 V | IP68 Material Float: PP (non-toxic polypropylene) | Dimensions (mm): 68 x 90 x 41 | Colour: red T(max) = 40°C | Storage(max) = 95°CFunction: emptying Switching angle: ±45° with stainless-steel clamp (Ø 100-140mm) & lever (4 cm or 9 cm switching range)Certifications: VDE, CE | Made in Germany   Float Switch for pump dry run protection Low-level Float Switch located inside a rainwater harvesting tank to provide dry-run protection for the rainwater harvesting pump.   The float switch in the upward position closes the contact between L & L1. In the downward position the contact between L & L1 is opened.   Applications: pump dry-run protection; low-level device in a rainwater harvesting tank   Float switch with exact switching range Due to the stainless steel clamp and lever the float switch can be located at the required level inside the tank for exact defined switching levels.  The clamp is suitable for a pipe diameter of 100-140 mm. Therefore, the float switch can be secured on a 4" vertical inlet pipe within the rainwater harvesting tank or on the submersible rainwater pump (e.g. EBARA Multigo pump or EBARA Idrogo pump, each with 5" diameter).   In addition, the clamp allows to a define a switching range of the float-switch of either 4cm or 9cm.   The float switch determines whether pump operation is possible.  In the upward position the pump could operate, while the downward position would deactivate the pump, even if the external device (e.g. pressure switch) for automatic pump operation would be on.    Connection is either possible directly to the pump or indirectly to the pump control panel.   The float switch for dry-run protection is a safety-mechanism in order to prevent damage to the pump which can occur during operation with no or insufficent water.   Brown = L; phase/power supply Blue = L1; to pump or control panel Green/Yellow = PE (earth conductor)   SAFETY NOTICE: due to submerged operation, a float switch with earth conductor (PE) is recommended at any installation with up to 250V. All float switches supplied by GEMGATE Limited are equipped with an earth conductor!

Regular price: €134.07
Net price: €109.00 - VAT: €25.07
Float-Switch with 20m cable for Mains Water Top-Up | Clamp & Lever
WISY Float-Switch | 20m cable | for Mains Water Top-Up - Clamp & Lever

Cable material: H07RN8-F, 3x 1.0mm² Cable length: 20m | 3x core cable (L-L1-PE) with protective earth conductor (PE) 10(8) A | 250 V | IP68 Material Float: PP (non-toxic polypropylene) | Dimensions (mm): 68 x 90 x 41 | Colour: yellow T(max) = 40°C | Storage(max) = 95°CFunction: filling Switching angle: ±45° with stainless-steel clamp (Ø 100-140mm) & lever (4 cm or 9 cm switching range)Certifications: VDE, CE | Made in Germany     Float Switch for Rainwater Tank mains top up Low-level Float Switch located inside a rainwater harvesting tank or header tank to activate a solenoid-valve, back-up supply, pump or low-level signal/alarm.   The float switch in the downward position closes the contact between L & L1. In the upward position the contact between L & L1 is opened.   Applications: - filling level-controlled filling (ON/OFF) of tanks; rainwater tank, header tank, intermediary buffer-tank low level signal/alarm of rainwater harvesting tank   The float switch activates an external solenoid-valve or pump to supply water to the tank. The low level alarm or signal can also be used to activate an emergency signal or to display a status on a control panel. It can also be used to trigger a backup supply (e.g. automatic switch-over from rainwater to well-water, if rainwater tank is empty).   Float switch with defined switching range Due to the stainless steel clamp and lever the float switch can be positioned at the required level inside the tank for exact defined switching levels.  The clamp is suitable for a pipe diameter of 100-140 mm. Therefore, the float switch can be secured on a 4" vertical inlet pipe within the rainwater harvesting tank or on the submersible rainwater pump (e.g. EBARA Multigo pump or EBARA Idrogo pump, each with 5" diameter).   In addition, the clamp allows to define a switching range of the float-switch of either 4cm or 9cm.   Connection is either possible directly to solenoid-valve, pump or indirectly to the rainwater harvesting control panel.   The float switch for mains water top-up is an emergency back-up in order to ensure continuous automatic supply at a rainwater harvesting system or water-supply system, in case the primary water supply source (e.g. low level inside rainwater tank) is not available.   Brown = L; phase/power supply Blue = L1; to solenoid-valve, low level alarm, back-up supply or rainwater control panel Green/Yellow = PE (earth conductor)   SAFETY NOTICE:due to submerged operation, a float switch with earth conductor (PE) is recommended at any installation with up to 250V. All float switches supplied by GEMGATE Limitedare equipped with an earth conductor!

Regular price: €134.07
Net price: €109.00 - VAT: €25.07
Float-Switch with 3m cable for Mains Water Top-Up | Clamp & Lever
WISY Float-Switch | 3m cable | for Mains Water Top-Up - Clamp & Lever

Cable material: H07RN8-F, 3x 1.0mm² Cable length: 3m | 3x core cable (L-L1-PE) with protective earth conductor (PE) 10(8) A | 250 V | IP68 Material Float: PP (non-toxic polypropylene) | Dimensions (mm): 68 x 90 x 41 | Colour: yellow T(max) = 40°C | Storage(max) = 95°CFunction: emptying Switching angle: ±45° with stainless-steel clamp (Ø 100-140mm) & lever (4 cm or 9 cm switching range)Certifications: VDE, CE | Made in Germany     Float Switch for Rainwater Tank mains top up Low-level Float Switch located inside a rainwater harvesting tank or header tank to activate a solenoid-valve, back-up supply, pump or low-level signal/alarm.   The float switch in the downward position closes the contact between L & L1. In the upward position the contact between L & L1 is opened.   Applications: - filling level-controlled filling (ON/OFF) of tanks; rainwater tank, header tank, intermediary buffer-tank low level signal/alarm of rainwater harvesting tank   The float switch activates an external solenoid-valve or pump to supply water to the tank. The low level alarm or signal can also be used to activate an emergency signal or to display a status on a control panel. It can also be used to trigger a backup supply (e.g. automatic switch-over from rainwater to well-water, if rainwater tank is empty).   Float switch with defined switching range Due to the stainless steel clamp and lever the float switch can be positioned at the required level inside the tank for exact defined switching levels.  The clamp is suitable for a pipe diameter of 100-140 mm. Therefore, the float switch can be secured on a 4" vertical inlet pipe within the rainwater harvesting tank or on the submersible rainwater pump (e.g. EBARA Multigo pump or EBARA Idrogo pump, each with 5" diameter).   In addition, the clamp allows to define a switching range of the float-switch of either 4cm or 9cm.   Connection is either possible directly to solenoid-valve, pump or indirectly to the rainwater harvesting control panel.   The float switch for mains water top-up is an emergency back-up in order to ensure continuous automatic supply at a rainwater harvesting system or water-supply system, in case the primary water supply source (e.g. low level inside rainwater tank) is not available.   Brown = L; phase/power supply Blue = L1; to solenoid-valve, low level alarm, back-up supply or rainwater control panel Green/Yellow = PE (earth conductor)   SAFETY NOTICE:due to submerged operation, a float switch with earth conductor (PE) is recommended at any installation with up to 250V. All float switches supplied by GEMGATE Limitedare equipped with an earth conductor!

Regular price: €72.57
Net price: €59.00 - VAT: €13.57