Level IndicatorsRLI
The RLI rotary paddle switch is designed to detect high and low levels of bulk granular solids in bins, tanks, silos, and as blockage detectors in spouts. The detection of material is…

The RG Series Level Sensors have been designed to indicate the presence or absence of bulk materials such as grains, pellets, chemicals, wood chips and other powders. The detection of material is…
The RG Series Level Sensors have been designed to indicate the presence or absence of bulk materials such as grains, pellets, chemicals, wood chips and other powders.
The detection of material is achieved by a rotating paddle. If material impedes the rotation of the paddle, the motor topples of its axis and triggers an alarm.
The RG Series has a variety of compatible paddles which offer the ability to detect a wide range of products.
| Brand | 4B |
|---|---|
| Part numbers | RG2V4A-P, RG2V4A-S, RG2V56A-P, RG2V56A-S, RG3-CUSTOM, RG3V4A-P, RG3V4A-S, RG3V56-P, RG3V56-S, RG4V4A-P, RG4V4A-S, RG4V56A-P, RG4V56-S, RG4V56A-P-HT, RG4V56A-S-HT, RG4V56A-P-HT, RG4V4A-S-HT, RG4V4A-P-HT |
| Application | Silos & Storage |
| Model | RGxV56A-x | RGxV4A-x |
| Power supply | 110-240 VAC | 24VDC |
| Output | Change over relay 10 A at 250 VAC | Change over relay 10 A at 250 VAC |
| Mounting | RG2 = Ø 1 1/4” NPT, RG3 = Ø 2”1/2 BSPT / Gas, RG4 = Ø 1”1/2 BSPT / Gas | RG2 = Ø 1 1/4” NPT, RG3 = Ø 2”1/2 BSPT / Gas, RG4 = Ø 1”1/2 BSPT / Gas |
| Conduit Entry | RG2 & RG4 = 1 x Ø 1/2” BSPP, RG3 = 2 x Ø 1/2” BSPP | RG2 & RG4 = 1 x Ø 1/2” BSPP, RG3 = 2 x Ø 1/2” BSPP |
| Enclosure | Die-cast aluminium casing | Die-cast aluminium casing |
| Operating temperature range | Standard: -20° C up to +70°C | Standard: -20° C up to +70°C |
| High Temp: -20° C up to +200°C | High Temp: -20° C up to +200°C | |
| Protection | IP65 | IP65 |
| Certificates and approvals | ATEX Zone 20 / Zone 21 | ATEX Zone 20 / Zone 21 |
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Level IndicatorsThe RLI rotary paddle switch is designed to detect high and low levels of bulk granular solids in bins, tanks, silos, and as blockage detectors in spouts. The detection of material is…
Level IndicatorsDetects level or plug situations for bulk granular solids or liquids in tanks, bins, or silos and can be used as a plug or choke detector in chutes, conveyors and elevator legs.
Level IndicatorsThe RLI “SHAKER” rotary paddle switch is used to detect high and low levels of bulk granular solids in bins, tanks and silos. It can also be used to detect plug conditions…
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