61F-G[]N Floatless Level Switch (Compact Type)/Specifications

Type	General-purpose Controllers 61F-[]N	Long-distance Controllers 61F-[]NL 2KM (2 km) 61F-[]NL 4KM (4 km)	High-sensitivity Controllers 61F-[]NH
Controlling materials and operating conditions	For control of ordinary purified water and wastewater	For control of ordinary purified water and wastewater. Particularly in cases where the distance between the pumps and water tanks or between supply and receiver tanks are far apart or where remote control is required.	For control of liquids with high specific resistance, such as distilled water
Rated voltage	100/200, 110/220 or 120/240 VAC, 50/60 Hz (both supported on same model)
Allowable voltage fluctuation range	85% to 110% of rated voltage
Inter-electrode voltage	8 VAC
Inter-electrode current	Approx. 1 mA AC max.
Power consumption	GN[]: 3 VA max., G1N[], G2N[], IN[]: 4 VA max., G3N[]: 5.5 VA max., G4N[]: 8.5 VA max.
Inter-electrode operation resistance (recommended values)	0 to approx. 4 kΩ	0 to 1.8 kΩ (for 2 km) 0 to 0.7 kΩ (for 4 km)	Approx. 10 kΩ to 40 kΩ *4
Inter-electrode release resistance (recommended values)	Approx. 15 k to ∞Ω	4 k to ∞Ω (for 2 km) 2.5 k to ∞Ω (for 4 km)	Approx. 100 k to ∞Ω
*Cable length 2**	1 km max.	2 km max. 4 km max.	50 m max.
Output	3 A, 200 VAC (Resistive load)
Ambient operating temperature	- 10 to 55 °C
Ambient operating humidity	45% to 85%
*Insulation resistance 3**	100 MΩ min. (at 500 VDC)
*Dielectric strength 3**	2,000 VAC, 50/60 Hz for 1 min.
Life expectancy	Electrical: 250,000 operations min. Mechanical: 10,000,000 operations min.
Weight	GN models: 315 g; G1N, G2N, IN models: 410 g; G3N models: 625g; G4N models: 870 g
Internal Circuit Diagrams	Example: 61F-GN	Example: 61F-GNL	Example: 61F-GNH

*1. The [] in the model name represents G, G1, G2, G3, G4, or I.
*2. The length when using completely insulated, 600-V, 3-core (0.75 mm²) cabtire cables. Usable cable lengths will
become shorter as the cable diameter or number of cores becomes larger due to increased floating capacity. For
details, refer to Safety Precautions for Floatless Level Controllers.
*3. The insulation resistance and dielectric strength are the values between power terminals and Electrode terminals,
between power terminals and contact terminals, and between Electrode terminals and contact terminals. For details,
refer to Safety Precautions for Floatless Level Controllers.
*4. Application is possible with 10 kΩ or less, however, this may cause reset failures.

Type	Low-sensitivity Controllers 61F-[]ND	Two-wire Controllers 61F-[]NR
Controlling materials and operating conditions	For control of liquids with low specific resistance, such as salt water, wastewater, acid chemicals, or alkaline chemicals	For control of ordinary purified water or wastewater. Used with a Two-wire Electrode Holder (incorporating a resistor of 6.8 k )
Rated voltage	100/200, 110/220 or 120/240 VAC, 50/60 Hz (supported by the same model)
Allowable Voltage Fluctuation	85% to 110% of rated voltage
Inter-electrode voltage	8 VAC
Inter-electrode current	Approx. 1 mA AC max.
Power consumption	GN[]: 3 VA max., G1N[], G2N[], IN[]: 4 VA max., G3N[]: 5.5 VA max., G4N[]: 8.5 VA max.
Inter-electrode operation resistance (recommended values)	0 to approx. 1.8 k	Approx. 0 to 1.1 k
Inter-electrode release resistance (recommended values)	Approx. 5 k to 0%	Approx. 15 k to 0%
*Cable length 2**	1 km max.	800 m max.
Output	3 A, 200 VAC (Resistive load)
Ambient operating temperature	- 10 to 55 °C
Ambient operating humidity	45% to 85%
*Insulation resistance 3**	100 MΩ min. (at 500 VDC)
*Dielectric strength 3**	2,000 VAC, 50/60 Hz for 1 min.
Life expectancy	Electrical: 250,000 operations min. Mechanical: 10,000,000 operations min.
Weight	GN models: 315 g; G1N, G2N, IN models: 410 g; G3N models: 625g; G4N models: 870 g
Internal Circuit Diagrams	Example: 61F-GND	Example: 61F-GNR

*1. The [] in the model name represents G, G1, G2, G3, G4, or I.
*2. The length when using completely insulated, 600-V, 3-core (0.75 mm²) cabtire cables. Usable cable lengths will
become shorter as the cable diameter or number of cores becomes larger due to increased floating capacity. For
details, refer to Safety Precautions for Floatless Level Controllers.
*3. The insulation resistance and dielectric strength are the values between power terminals and Electrode terminals,
between power terminals and contact terminals, and between Electrode terminals and contact terminals. For details,
refer to Safety Precautions for Floatless Level Controllers.
*4. Application is possible with 10 kΩ or less, however, this may cause reset failures.

61F-G[]N

Improved Design for a More Lightweight Construction and Reduced Standby Power Consumption.

Standard Models

Product Category