Float switch (level switch )

NA Co., Ltd. Float switch (level switch )

Characteristics

NA float switches (level switches) detect liquid level by detecting the magnetic force from a float, a magnet-enbetted foam, floating on liquid.
Float switches of various types of materials suitable for water, oil, chemicals, or drinking water are available.
NA proximity switches use reed switches to detect magnetic force, and have the following features,
・No power supply required for driving the switch
・“Zero“ power consumption
・Low price
NA proximity switches are all made in Japan.

Applications

* Humidifiers [detecting empty containar]
* Cooling systems [detecting the remaining amount of coolant]
* Air-conditioners [detecting the full capacity of drain water]
* Fryers [detecting the remaining amount of cooking oil]
* Inkjet printer for business use [detecting the remaining amount of ink]
* Cleaning equipment [detecting the full capacity of wastewater]
* Compressors [detecting the remaining amount of oil]

FSA-0801-AS3

Zoom

Characteristics

* Stainless steel (SUS304) housing
* Applicable to detect liquid surface of various types of liquid
* No power supply required for driving the switch
* “Zero“ power consumption because of using a reed switch
* RoHS compliant
* Japan made

Use conditions Usage

Liquid level detection

Operation scheme

ON by float up

Liquid for use

Water, oil, and chemicals

Liquid density for use

0.8 or higher

Operating temperature

- 10℃ to +100℃

Electrical characteristics Operating voltage

1 to 200 VAC
1 to 200 VDC

Maximum switching capacity

50 VA AC
50 W DC

Operating current

10 µ - 0.5 A AC
10 µ - 0.5 A DC

Electrical life 1×106 times
Life with 95% reliability
(200 VAC, 200 mA resistance load)
Others Ingress protection

IP67

Structure (materials) Stem

SUS304

Nut

SUS304

Float

SUS304

Stopper

SUS304

Lead wire

Heat-resistant polyvinyl chloride wire

External drawing

FSA-0801-BS3

Zoom

Characteristics

* Stainless steel (SUS304) housing
* Applicable to detect liquid surface of various types of liquid
* No power supply required for driving the switch
* “Zero“ power consumption because of using a reed switch
* RoHS compliant
* Japan made

Use conditions Usage

Water level detection

Operation scheme

ON by float down

Liquid for use

Water, oil, and chemicals

Liquid density for use

0.8 or higher

Operating temperature

- 10℃ to +100℃

Electrical characteristics Operating voltage

1 to 200 VAC
1 to 200 VDC

Maximum switching capacity

50 VA AC
50 W DC

Operating current

10 µ - 0.5 A AC
10 µ - 0.5 A DC

Electrical life 1×106 times
Life with 95% reliability
(200 VAC, 200 mA resistance load)
Others Ingress protection

IP67

Structure (materials) Stem

SUS304

Nut

SUS304

Float

SUS304

Stopper

SUS304

Lead wire

Heat-resistant polyvinyl chloride wire

External drawing

FSA-0811-AS3

Zoom

Characteristics

* Stainless steel (SUS304) housing
* Horizontally mounting type
* Applicable to detect liquid surface of various types of liquid
* No power supply required for driving the switch
* “Zero“ power consumption because of using a reed switch
* RoHS compliant
* Japan made

Use conditions Usage

Water level detection

Operation scheme

ON by float up

Liquid for use

Water, oil, and chemicals

Liquid density for use

0.8 or higher

Operating temperature

- 10℃ to +100℃

Electrical characteristics Operating voltage

1 to 200 VAC
1 to 200 VDC

Maximum switching capacity

50 VA AC
50 W DC

Operating current

10 µ - 0.5 A AC
10 µ - 0.5 A DC

Electrical life 1×106 times
Life with 95% reliability
(200 VAC, 200 mA resistance load)
Others Ingress protection

IP67

Structure (materials) Stem

SUS304

Nut

SUS304

Float

SUS304

Stopper

SUS304

Lead wire

Heat-resistant polyvinyl chloride wire

External drawing

FSA-0811-BS3

Zoom

Characteristics

* Stainless steel (SUS304) housing
* Horizontally mounting type
* Applicable to detect liquid surface of various types of liquid
* No power supply required for driving the switch
* “Zero“ power consumption because of using a reed switch
* RoHS compliant
* Japan made

Use conditions Usage

Water level detection

Operation scheme

ON by float down

Liquid for use

Water, oil, and chemicals

Liquid density for use

0.8 or higher

Operating temperature

- 10℃ to +100℃

Electrical characteristics Operating voltage

1 to 200 VAC
1 to 200 VDC

Maximum switching capacity

50 VA AC
50 W DC

Operating current

10 µ - 0.5 A AC
10 µ - 0.5 A DC

Electrical life 1×106 times
Life with 95% reliability
(200 VAC, 200 mA resistance load)
Others Ingress protection

IP67

Structure (materials) Stem

SUS304

Nut

SUS304

Float

SUS304

Stopper

SUS304

Lead wire

Heat-resistant polyvinyl chloride wire

External drawing

FSE-0808-AS3

Zoom

Characteristics

* Most suitable for detecting drinking water level
* No power supply required for driving the switch
* “Zero“ power consumption because of using a reed switch
* RoHS compliant
* Japan made

Use conditions Usage

Water level detection

Operation scheme

ON by float up

Liquid for use

Water, and drinking water

Liquid density for use

0.8 or higher

Operating temperature

- 10℃ to +100℃

Electrical characteristics Operating voltage

1 to 200 VAC
1 to 200 VDC

Maximum switching capacity

50 VA AC
50 W DC

Operating current

10 µ - 0.5 A AC
10 µ - 0.5 A DC

Electrical life 1×106 times
Life with 95% reliability
(200 VAC, 200 mA resistance load)
Others Ingress protection

IP67

Structure (materials) Stem

Modified PPO

Nut

Modified PPO

Float

PP foam

Stopper

SUS304

Lead wire

Heat-resistant polyvinyl chloride wire

External drawing

FSE-0809-BS3

Zoom

Characteristics

* Most suitable for detecting drinking water level
* No power supply required for driving the switch
* "Zero" power consumption because of using a reed switch
* RoHS compliant
* Japan made

Use conditions Usage

Water level detection

Operation scheme

ON by float down

Liquid for use

Water, and drinking water

Liquid density for use

0.8 or higher

Operating temperature

- 10℃ to +100℃

Electrical characteristics Operating voltage

1 to 200 VAC
1 to 200 VDC

Maximum switching capacity

50 VA AC
50 W DC

Operating current

10 µ - 0.5 A AC
10 µ - 0.5 A DC

Electrical life 1×106 times
Life with 95% reliability
(200 VAC, 200 mA resistance load)
Others Ingress protection

IP67

Structure (materials) Stem

Modified PPO

Nut

Modified PPO

Float

PP foam

Stopper

SUS304

Lead wire

Heat-resistant polyvinyl chloride wire

External drawing

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