OMRON Level Switches - 61F-G[]N

Model Numbers | Level Switches - 61F-G[]N

Note: 1. *1: Automatic water supply and drainage control, *2: Automatic water supply control
2. Subclassified into 2 km and 4 km models according to the model of relay unit used. Specify 2 km or 4 km
when ordering.
3. When ordering, specify the desired operating voltage at the end of the model number.

4. Contact your OMRON representative for products with voltages other than those listed above.
5. If you order with a standard model number, the corresponding Relay Units are also delivered as part of a set.
If you order the 61F-GN, one 61F-11 Relay Unit is included in the set.
* 61F-G[]N (120/240 VAC) in this catalog have been discontinued at the end of March 2018.

Specifications | Level Switches - 61F-G[]N series

Standard Models

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

*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

*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.

Dimensions | Level Switches - 61F-G[]N

61F-GN, -GNL, -GNH, -GND, -GNR

61F-G1N, -G1NL, -G1NH, -G1ND, -G1NR 61F-G2N, -G2NL, -G2NH, -G2ND, G2NR 61F-IN, - NL, -INH, -IND

61F-G3N, -G3NL, -G3NH, -G3ND, -G3NR, -G3N-NGD

61F-G4N, - G4NL, -G4NH, -G4ND, -G4NR, -G4N-KYD

Features | Level Switches - 61F-G[]N

• Standby power reduced to 85% or less of previous models. (Applicable to 61F-GN.)
• Weighs only 85% or less of previous models. (Applicable to 61F-G3N/-G4N.)
• Easy identification of operating status with LED operation indicator.
• Increased reliability of internal relay (micro load: 5 VDC, 1 mA) to enable PLC input.
• Electrode terminals and other wiring terminals are separated for easy wiring.
• Select from three mounting methods: JEM, DIN rail mounting, or screw mounting.

Properties | Level Switches - 61F-G[]N