OMRON 61F-G[]Switches/ Level Switches/Floatless Level Controllers

OMRON 61F-G[] Switches

61F-G[] Floatless Level Switch (Basic Type)/Lineup
61F-G[] Floatless Level Switch (Basic Type)/Catalog
61F-G[] Floatless Level Switch (Basic Type)/Dimensions
61F-G[] Floatless Level Switch (Basic Type)/Specifications
Purchase the OMRON 61F-G[] Floatless Level Controllers

OMRON 61F-G[] Dimensions

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last update: December 19, 2013

• Easy maintenance with building-block Relay Units.

• Easy identification of operating status with LED operation indicator.

• Lineup includes models for tropical regions and for high temperatures. Achieve stable detection even in hightemperature environments.

last update: December 19, 2013

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OMRON 61F-G[] lineup
61F-G[] Floatless Level Switch (Basic Type)/Lineup
last update: April 2, 2018

Type Set contents General-purpose Long-distance,
2 km Long-distance,
4 km High-sensitivity
Model Model Model Model
Application G 61F-G Base x 1
61F-11[] Units x 1 61F-G * 61F-GL 2KM * 61F-GL 4KM * 61F-GH *
Application G1 61F-G1 Base x 1
61F-11[] Units x 2 61F-G1 * 61F-G1L 2KM 61F-G1L 4KM 61F-G1H *
Application G2 61F-G2 Base x 1
61F-11[] Units x 2 61F-G2 * 61F-G2L 2KM * 61F-G2L 4KM * 61F-G2H *
Application G3 61F-G3 Base x 1
61F-11[] Units x 3 61F-G3 * 61F-G3L 2KM 61F-G3L 4KM 61F-G3H *
Application G4 61F-G4 Base x 1
61F-11[] Units x 5
MK3P Relay x 1 61F-G4 * 61F-G4L 2KM 61F-G4L 4KM * 61F-G4H *
Application I 61F-I Base x 1
61F-11[] Units x 2 61F-I * 61F-IL 2KM 61F-IL 4KM 61F-IH
Relay Unit 61F-11[] Units x 1 61F-11 61F-11L 2KM 61F-11L 4KM 61F-11H

Type Set contents Low-sensitivity 2-wire Tropical
environments High-temperature
Model Model Model Model
Application G 61F-G Base x 1
61F-11[] Units x 1 61F-GD 61F-GR 61F-G-TDL * 61F-GT *
Application G1 61F-G1 Base x 1
61F-11[] Units x 2 61F-G1D 61F-G1R 61F-G1-TDL * 61F-G1T
Application G2 61F-G2 Base x 1
61F-11[] Units x 2 61F-G2D 61F-G2R 61F-G2-TDL * 61F-G2T *
Application G3 61F-G3 Base x 1
61F-11[] Units x 3 61F-G3D 61F-G3R 61F-G3-TDL * 61F-G3T
Application G4 61F-G4 Base x 1
61F-11[] Units x 5
MK3P Relay x 1 61F-G4D 61F-G4R 61F-G4-TDL * 61F-G4T
Application I 61F-I Base x 1
61F-11[] Units x 2 61F-ID * --- 61F-I-TDL * 61F-IT
Relay Unit 61F-11[] Units x 1 61F-11D 61F-11R --- 61F-11T

Note: 1. When ordering, specify the desired operating voltage at the end of the model number.

2. 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-G, one 61F-11 Relay Unit is included in the set.
* Orders will not be accepted after March 31, 2018. Refer to the following table for the discontinued power supply voltages.

61F-G G G1 G2 G3 G4 I
Voltage Model Model Model Model Model Model
120/240 V 61F-G *
120/240 VAC 61F-G1 *
120/240 VAC 61F-G2 *
120/240 VAC 61F-G3 *
120/240 VAC 61F-G4 *
120/240 VAC 61F-I *
120/240 VAC
115/230 V 61F-G2 *
115/230 VAC 61F-G3 *
115/230 VAC 61F-G4 *
115/230 VAC 61F-I *
115/230 VAC
200/220 V 61F-G *
200/220VAC 61F-I *
200/220 VAC
220/380 V 61F-G *
220/380 VAC 61F-G1 *
220/380 VAC 61F-G2 *
220/380 VAC 61F-G3 *
220/380 VAC 61F-G4 *
220/380 VAC 61F-I *
220/380 VAC
120/240 V 61F-GL *
120/240 VAC 2KM 61F-G2L *
120/240 VAC 2KM
120/240 V 61F-GL *
120/240 VAC 4KM 61F-G2L *
120/240 VAC 4KM 61F-G4L *
120/240 VAC 4KM
120/240 V 61F-GH *
120/240 VAC 61F-G1H *
120/240 VAC 61F-G2H *
120/240 VAC 61F-G3H *
120/240 VAC 61F-G4H *
120/240 VAC
115 V 61F-ID *
115 VAC
120/240 V 61F-GT *
120/240 VAC
120/240 V 61F-G2T *
120/240 VAC
100/200 V 61F-G-TDL *
100/200 VAC 61F-G1-TDL *
100/200 VAC 61F-G2-TDL *
100/200 VAC 61F-G3-TDL *
100/200VAC 61F-G4-TDL *
100/200 VAC 61F-I-TDL *
100/200 VAC
110/220 V 61F-G-TDL *
110/220 VAC 61F-G1-TDL *
110/220 VAC 61F-G2-TDL *
110/220 VAC 61F-G3-TDL *
110/220 VAC 61F-G4-TDL *
110/220 VAC

* Discontinued at the end of March 2018

last update: April 2, 2018

OMRON 61F-G[] catalog
61F-G[] Floatless Level Switch (Basic Type)/Catalog

Catalog

Manual

CAD

English
Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.
*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name Catalog Number
[size] Last Update

61F-G[] Data Sheet -
[2059KB] Apr 02, 201820180402 61F-G[] Data Sheet

Device Selection Guide for Water Level Control Applications N217-E1-01
[2428KB] Jun 12, 201720170612 Device Selection Guide for Water Level Control Applications

OMRON 61F-G[] dimension
61F-G[] Floatless Level Switch (Basic Type)/Dimensions
last update: September 24, 2012
Standard Models
61F-G

61F-G161F-G261F-I

61F-G3

61F-G4

last update: September 24, 2012

OMRON 61F-G[] specification
61F-G[] Floatless Level Switch (Basic Type)/Specifications
last update: September 24, 2012
Standard Models

Items General-
purpose
Controller

61F-[] (TDL)
(see note
1 and 2) High-
temperature
Controller

61F-[]T
(see note 1) Long-distance
Controllers

61F-[]L 2KM
(for 2 km)
61F-[]L 4KM
(for 4 km)
(see note 1) High-
sensitivity
Controllers

61F-[]H
(see note 1) Low-
sensitivity
Controller

61F-[]D
(see note 1) Two-wire
Controller

61F-[]R
(see note 1)

Controlling materials
and operating
conditions For control of
ordinary
purified water
or sewage
water For control of
ordinary purified
water or sewage
water in cases
where the ambient
temperature is
high. For control of ordinary
purified water in cases
where the distance
between sewage
pumps and water tanks
or between receiver
tanks and supply tanks
is long or where remote
control is required. For control of
liquids with
high specific
resistance
such as
distilled water For control of
liquids with low
specific
resistance such
as salt water,
sewage water,
acid chemicals,
alkali chemicals For control of
ordinary purified
water or sewage
water used in
combination with
Two-wire Electrode
Holder (incorporating
a resistor of 6.8 kΩ)
It is possible to wire
with less than one
wiring against
general 61F's wiring.

Supply voltage 100, 110, 120, 200, 220 or 240 VAC; 50/60 Hz

Operating voltage
range 85% to 110% of rated voltage

InterElectrode voltage 8 VAC 24 VAC 8 VAC

InterElectrode
current Approx. 1 mA AC max.

Power consumption 61F-G[]: 3.5 VA max.; G1F-G1[], G1F-G2[], or G1F-I[]: 5.5 VA max.; G1F-G3[]: 7.5 VA max.; G1F-G4[]: 14.5 VA max.

InterElectrode
operate resistance 0 to approx.
4 kΩ 0 to approx. 5 kΩ 0 to approx. 1.8 kΩ
(for 2 km)
0 to approx. 0.7 kΩ
(for 4 km) Approx. 15 kΩ
to 70 kΩ
(see note 5) 0 to approx.
1.8 kΩ 0 to approx. 1.1 kΩ

InterElectrode
release resistance Approx. 15 k
to ∞ Ω Approx. 15 k
to ∞ Ω 4 k to ∞ Ω (for 2 km)
2.5 k to ∞ Ω (for 4 km) Approx. 300 k
to ∞ Ω Approx. 5 k
to ∞ Ω Approx. 15 k
to ∞ Ω

Cable length
(see note 3) 1 km max. 600 m max. 2 km max.
4 km max. 50 m max. 1 km max. 800 m max.

Control output 2 A, 220 VAC (Inductive load: cosΦ = 0.4)
5 A, 220 VAC (Resistive load)

Ambient temperature Operating: -10 to 55°C (-10 to 70°C for 61F-[]T)

Ambient humidity Operating: 45% to 85% RH

Insulation resistance
(see note 4) 100 MΩ min. (at 500 VDC)

Dielectric strength
(see note 4) 2000 VAC, 50/60 Hz for 1 min.

Life expectancy Electrical: 500,000 operations min.
Mechanical: 5,000,000 operations min.

Weight 61F-G[]: Approx. 380 g, G1F-G1[], G1F-G2[], or G1F-I[]: Approx. 750 g; G1F-G3[]: Approx. 930 g;
G1F-G4[]: Approx. 1,710 g

Note:Note:

Note:The [] in the model name represents G, G1, G2, G3, G4, and I.

Note:The suffix "TDL" attached to the model name represents models designed for tropical regions (storage humidity of 45% to 90%).

Note:The length when using completely-insulated, 600-V, 3-conductor (0.75 mm²) cabtire cables. Usable cable lengths will become shorter as the cable diameter or number of conductors becomes larger.

Note:The insulation resistance and dielectric strength indicate values between power terminals and Electrode terminals, between power terminals and contact terminals, and between Electrode terminals and contact terminals.

Note:Possible to use with 15 kΩ or less, however, this may cause reset failure.

Note:High-sensitivity Controllers use advanced operation.
When the power supply voltage is applied, if there are some liquids between the electrodes (ground and operation electrodes), the internal relay will not operate.
When the power supply voltage is applied, if there are no liquids between the electrodes (ground and operation electrodes), the internal relay will operate.

Advanced Operation

Note:With advanced operation, the internal relay operates as soon as control power is supplied to the G1F and is reset when current flows between the poles. Wiring is the same as for models with sequential operation.

last update: September 24, 2012

NO. 61F-G[]

TYPE:Level Switches Floatless Level Controllers Copyright Statement

DATE:2021-06-07

Associated products:
61F-G[]N Floatless Level Switch (Compact Type)/Features 61F-GP-N[] Floatless Level Switch (Compact, Plug-in Type)/Features

Type	Set contents	General-purpose	Long-distance, 2 km	Long-distance, 4 km	High-sensitivity
Model	Model	Model	Model
Application G	61F-G Base x 1 61F-11[] Units x 1	61F-G *	61F-GL 2KM *	61F-GL 4KM *	61F-GH *
Application G1	61F-G1 Base x 1 61F-11[] Units x 2	61F-G1 *	61F-G1L 2KM	61F-G1L 4KM	61F-G1H *
Application G2	61F-G2 Base x 1 61F-11[] Units x 2	61F-G2 *	61F-G2L 2KM *	61F-G2L 4KM *	61F-G2H *
Application G3	61F-G3 Base x 1 61F-11[] Units x 3	61F-G3 *	61F-G3L 2KM	61F-G3L 4KM	61F-G3H *
Application G4	61F-G4 Base x 1 61F-11[] Units x 5 MK3P Relay x 1	61F-G4 *	61F-G4L 2KM	61F-G4L 4KM *	61F-G4H *
Application I	61F-I Base x 1 61F-11[] Units x 2	61F-I *	61F-IL 2KM	61F-IL 4KM	61F-IH
Relay Unit	61F-11[] Units x 1	61F-11	61F-11L 2KM	61F-11L 4KM	61F-11H

Type	Set contents	Low-sensitivity	2-wire	Tropical environments	High-temperature
Model	Model	Model	Model
Application G	61F-G Base x 1 61F-11[] Units x 1	61F-GD	61F-GR	61F-G-TDL *	61F-GT *
Application G1	61F-G1 Base x 1 61F-11[] Units x 2	61F-G1D	61F-G1R	61F-G1-TDL *	61F-G1T
Application G2	61F-G2 Base x 1 61F-11[] Units x 2	61F-G2D	61F-G2R	61F-G2-TDL *	61F-G2T *
Application G3	61F-G3 Base x 1 61F-11[] Units x 3	61F-G3D	61F-G3R	61F-G3-TDL *	61F-G3T
Application G4	61F-G4 Base x 1 61F-11[] Units x 5 MK3P Relay x 1	61F-G4D	61F-G4R	61F-G4-TDL *	61F-G4T
Application I	61F-I Base x 1 61F-11[] Units x 2	61F-ID *	---	61F-I-TDL *	61F-IT
Relay Unit	61F-11[] Units x 1	61F-11D	61F-11R	---	61F-11T

61F-G	G	G1	G2	G3	G4	I
Voltage	Model	Model	Model	Model	Model	Model
120/240 V	61F-G * 120/240 VAC	61F-G1 * 120/240 VAC	61F-G2 * 120/240 VAC	61F-G3 * 120/240 VAC	61F-G4 * 120/240 VAC	61F-I * 120/240 VAC
115/230 V			61F-G2 * 115/230 VAC	61F-G3 * 115/230 VAC	61F-G4 * 115/230 VAC	61F-I * 115/230 VAC
200/220 V	61F-G * 200/220VAC					61F-I * 200/220 VAC
220/380 V	61F-G * 220/380 VAC	61F-G1 * 220/380 VAC	61F-G2 * 220/380 VAC	61F-G3 * 220/380 VAC	61F-G4 * 220/380 VAC	61F-I * 220/380 VAC
120/240 V	61F-GL * 120/240 VAC 2KM		61F-G2L * 120/240 VAC 2KM
120/240 V	61F-GL * 120/240 VAC 4KM		61F-G2L * 120/240 VAC 4KM		61F-G4L * 120/240 VAC 4KM
120/240 V	61F-GH * 120/240 VAC	61F-G1H * 120/240 VAC	61F-G2H * 120/240 VAC	61F-G3H * 120/240 VAC	61F-G4H * 120/240 VAC
115 V						61F-ID * 115 VAC
120/240 V	61F-GT * 120/240 VAC
120/240 V			61F-G2T * 120/240 VAC
100/200 V	61F-G-TDL * 100/200 VAC	61F-G1-TDL * 100/200 VAC	61F-G2-TDL * 100/200 VAC	61F-G3-TDL * 100/200VAC	61F-G4-TDL * 100/200 VAC	61F-I-TDL * 100/200 VAC
110/220 V	61F-G-TDL * 110/220 VAC	61F-G1-TDL * 110/220 VAC	61F-G2-TDL * 110/220 VAC	61F-G3-TDL * 110/220 VAC	61F-G4-TDL * 110/220 VAC

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.
*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.
Catalog Name	Catalog Number [size]	Last Update
61F-G[] Data Sheet	- [2059KB]	Apr 02, 201820180402	61F-G[] Data Sheet
Device Selection Guide for Water Level Control Applications	N217-E1-01 [2428KB]	Jun 12, 201720170612	Device Selection Guide for Water Level Control Applications

Items	General- purpose Controller 61F-[] (TDL) (see note 1 and 2)	High- temperature Controller 61F-[]T (see note 1)	Long-distance Controllers 61F-[]L 2KM (for 2 km) 61F-[]L 4KM (for 4 km) (see note 1)	High- sensitivity Controllers 61F-[]H (see note 1)	Low- sensitivity Controller 61F-[]D (see note 1)	Two-wire Controller 61F-[]R (see note 1)
Controlling materials and operating conditions	For control of ordinary purified water or sewage water	For control of ordinary purified water or sewage water in cases where the ambient temperature is high.	For control of ordinary purified water in cases where the distance between sewage pumps and water tanks or between receiver tanks and supply tanks is long or where remote control is required.	For control of liquids with high specific resistance such as distilled water	For control of liquids with low specific resistance such as salt water, sewage water, acid chemicals, alkali chemicals	For control of ordinary purified water or sewage water used in combination with Two-wire Electrode Holder (incorporating a resistor of 6.8 kΩ) It is possible to wire with less than one wiring against general 61F's wiring.
Supply voltage	100, 110, 120, 200, 220 or 240 VAC; 50/60 Hz
Operating voltage range	85% to 110% of rated voltage
InterElectrode voltage	8 VAC	24 VAC	8 VAC
InterElectrode current	Approx. 1 mA AC max.
Power consumption	61F-G[]: 3.5 VA max.; G1F-G1[], G1F-G2[], or G1F-I[]: 5.5 VA max.; G1F-G3[]: 7.5 VA max.; G1F-G4[]: 14.5 VA max.
InterElectrode operate resistance	0 to approx. 4 kΩ	0 to approx. 5 kΩ	0 to approx. 1.8 kΩ (for 2 km) 0 to approx. 0.7 kΩ (for 4 km)	Approx. 15 kΩ to 70 kΩ (see note 5)	0 to approx. 1.8 kΩ	0 to approx. 1.1 kΩ
InterElectrode release resistance	Approx. 15 k to ∞ Ω	Approx. 15 k to ∞ Ω	4 k to ∞ Ω (for 2 km) 2.5 k to ∞ Ω (for 4 km)	Approx. 300 k to ∞ Ω	Approx. 5 k to ∞ Ω	Approx. 15 k to ∞ Ω
Cable length (see note 3)	1 km max.	600 m max.	2 km max. 4 km max.	50 m max.	1 km max.	800 m max.
Control output	2 A, 220 VAC (Inductive load: cosΦ = 0.4) 5 A, 220 VAC (Resistive load)
Ambient temperature	Operating: -10 to 55°C (-10 to 70°C for 61F-[]T)
Ambient humidity	Operating: 45% to 85% RH
Insulation resistance (see note 4)	100 MΩ min. (at 500 VDC)
Dielectric strength (see note 4)	2000 VAC, 50/60 Hz for 1 min.
Life expectancy	Electrical: 500,000 operations min. Mechanical: 5,000,000 operations min.
Weight	61F-G[]: Approx. 380 g, G1F-G1[], G1F-G2[], or G1F-I[]: Approx. 750 g; G1F-G3[]: Approx. 930 g; G1F-G4[]: Approx. 1,710 g

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