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- Schneider Electric RM22LA32MR Harmony RM22L 8A 2CO Level Control 24-240V AC/DC Control Relay Schneider Electric RM22LA32MR Harmony RM22L 8A 2CO Level Control 24-240V AC/DC Control Relay
Schneider Electric RM22LA32MR Harmony RM22L 8A 2CO Level Control 24-240V AC/DC Control Relay
Schneider Electric RM22LA32MR Harmony RM22L 8A 2CO Level Control 24-240V AC/DC Control Relay
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- Description
The Schneider Electric RM22LA32MR is a Harmony RM22L level control relay that detects liquid level through resistive probes and switches 2 C/O contacts rated 8 A. It runs from a universal 24-240 V AC/DC 50/60 Hz supply, offers an adjustable 0.1-30 second fault time delay, and mounts on 35 mm DIN rail.
Technical Specifications
| Reference | RM22LA32MR |
| Brand | Schneider Electric |
| Range | Harmony Control Relays |
| Series | RM22L |
| Product Type | Level control relay |
| Monitored Parameter | Level, by resistive probes |
| Contacts | 2 C/O |
| Nominal Output Current | 8 A |
| Rated Nominal Voltage (Un) | 24...240 V AC/DC 50/60 Hz, non self-powered |
| Supply Voltage Limits | 20.4...264 V AC/DC |
| Time Delay (fault) | Adjustable 0.1...30 s |
| Switching Capacity | 2000 VA |
| Maximum Switching Current | 8 A AC |
| Maximum Switching Voltage | 250 V AC |
| Measurement Range | 0.25...1000 kOhm |
| Sensitivity Scale | 0.25...5 kOhm (LS) / 5...100 kOhm (St) / 50...1000 kOhm (HS) |
| Maximum Cable Distance (probe) | 100 m |
| Maximum Electrode Voltage | 12 V AC |
| Overvoltage Category | III |
| IP Degree of Protection | IP20 (terminals) / IP40 (housing) / IP50 (front panel) |
| Mounting Support | 35 mm DIN rail |
| Safety Reliability Data | MTTFd = 182.6 years, B10d = 170000 |
| Net Weight | 0.11 kg |
Certifications & Standards
- UL
- RCM
- CSA
- GL
- CCC
- CE
- EAC
- IEC 60255-1
Selection Notes
RM22LA32MR detects liquid level through resistive probes rather than a float switch, which suits tanks where mechanical floats foul or where several fixed level points must be sensed. The LS/St/HS sensitivity scale (0.25 kOhm to 1000 kOhm) is set to match probe cable length and liquid conductivity, with runs up to 100 m supported. At 8 A/2 C/O on a 24-240 V AC/DC supply, it can switch a pump contactor coil directly from the panel's control voltage without an interposing relay.