Product Category

Switches

Level Switches

Floatless Level Controllers

K8AK-LS

61F-G[]N

61F-G[]

61F-LS

61F-G[]P

61F-UHS / HSL

61F-AO

61F-AN

Floatless Level Switch (Plug-in Type)

61F-G[]P

Compact, Space-saving Plug-in Type Ideal for Pump Panels or Building into Equipment.

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Specification

Plug-in Models

Item

General-purpose
 Controller
 61F-G1P
 61F-G2P
 61F-IP

Long-distance
 Controllers
 61F-G1PL
 61F-G2PL
 61F-IPL
 *2

High-sensitivity
 Controllers
 61F-G1PH
 61F-G2PH
 61F-IPH
 *1, *6

Low-sensitivity
 Controller
 61F-G1PD
 61F-G2PD
 61F-IPD

Controlling materials
 and operating
 conditions

For control of
 ordinary purified
 water or sewage
 water

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

Supply voltage

100, 200, 220 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.

Approx. 0.4 mA AC
 max.

Approx. 1.2 mA AC
 max.

Power consumption

Approx. 6.4 VA max.

Interelectrode
 operate resistance

0 to approx. 4 kΩ

0 to 1.8 kΩ (for 2 km)
 0 to 0.7 kΩ (for 4 km)

Approx. 15 kΩ to
 approx. 70 kΩ *5

0 to approx. 1.8 kΩ

Interelectrode
 release resistance

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

Response time

Operate: 80 ms max.
 Release: 160 ms max.

Cable length *3

1 km max.

2 km max.
 4 km max.

50 m max.

1 km max.

Control output

2 A, 200 VAC (Inductive load: cosφ = 0.4)
 5 A, 200 VAC (Resistive load)

Ambient temperature

Operating: -10 to 55°C

Ambient humidity

Operating: 45% to 85% RH

Insulation resistance
 *4

100 MΩ min. (at 500 VDC)

Dielectric strength
 *4

2000 VAC, 50/60 Hz for 1 min.

Life expectancy

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

Weight

Approx. 495 g

1. The relay in the 61F-G1H/-G2H/-IPH de-energizes when there is water present across the Electrodes, whereas the relay in the 61F-GP-N8HY energizes when there is water present across the Electrodes.
 2. Models are available for 2 km and 4 km.
3. 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. For details, refer to Safety Precautions for Floatless Level Controllers.
 4. 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. For details, refer to Safety Precautions for Floatless Level Controllers.
 5. Possible to use with 15 kΩ or less, however, this may cause reset failure.
 6. 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.