The Omron 61F-G3H AC110/220 is a High/Low Level controller from the 61F series, designed to monitor and control liquid levels in tanks, reservoirs, or process vessels. It operates on a 110/220VAC supply and uses electrode-based sensing with a sensitivity range of 15kOhm to 70kOhm, meaning it can detect conductive liquids across that resistance band — useful for water, weak acids, or other conductive media where the electrode-to-ground resistance falls within that window. The unit provides three relay outputs (SPDT, 2 Form C) rated at 5A @ 220VAC, giving you separate alarm and control contacts for high-level, low-level, or fault conditions. The maximum distance between the controller and the sensing electrode is 50 meters, which covers most tank-side mounting scenarios without needing a remote amplifier.
Omron 61F-G3H AC110/220 Level Controller, 110/220VAC, High/L
MPN61F-G3H AC110/220
Active
Omron 61F Series, High/Low Level controller, 61F-G3H AC110/220, 110/220VAC supply, relay outputs, 15kOhm~70kOhm sensitivity, chassis mount.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | 61F |
| Parameter | Value |
|---|---|
| Contact form | SPDT (2 Form C) |
| Contact rating at voltage | 5A @ 220VAC |
| Parameter | Value |
|---|---|
| Supply voltage range | 110/220VAC |
| Parameter | Value |
|---|---|
| Type | High/Low Level |
| Parameter | Value |
|---|---|
| Mounting type | Chassis Mount |
| Termination style | Screw Terminal |
| Parameter | Value |
|---|---|
| Operating temperature range | -10°C~55°C |
| Parameter | Value |
|---|---|
| Weight | 2.1 lbs (952.5 g) |
| Features | Alarm High/Low - Contact |
| Output signal | Relay (3) |
| Sensitivity | 15kOhm ~ 70kOhm |
| Distance - control to sensor | 50m |
Product details
Frequently asked questions
What is the sensitivity range of the 61F-G3H AC110/220?
The sensitivity range is 15kOhm to 70kOhm, which determines the conductivity threshold of the liquid the electrodes can detect.
What is the supply voltage for this level controller?
It operates on a dual-rated 110/220VAC supply, selectable via the terminal connections.
Where can I buy the 61F-G3H AC110/220?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
MPN
61F-G3H AC110/220