Schneider Zelio vs ABB CM: Monitoring Relay Comparison
A function-by-function comparison of Schneider Zelio Control and ABB CM monitoring relays covering three-phase supply, voltage, current, level, temperature, module width, and measurement method.
- Part number
- RM22UA32MR
- UL
- CSA
- CE
- CCC
- EAC
Harmony Control RelaysSchneider Electric RM22UA32MR Harmony Voltage Control Relay 8A 2CO 1-100V AC/DC 24-240V Control Relay
Harmony voltage control relay, 1-100V AC/DC measurement, 24-240V AC/DC supply, 2 CO 8A.
Description
About the RM22UA32MR
About the RM22UA32MR
The Schneider Electric RM22UA32MR is a Harmony RM22-UA single-phase voltage control relay, measuring a 1-100 V AC/DC signal for overvoltage or undervoltage conditions in window mode while powered from a 24-240 V AC/DC supply. It switches two 8 A changeover contacts in a 22.5 mm wide DIN rail housing with a front diagnostic button.
Certifications & Standards
- GL
- UL
- CCC
- EAC
- CE
- RCM
- CSA
- IEC 60255-1
Selection Notes
The 1-100 V measurement range on RM22UA32MR suits low-voltage sensor or transformer secondary signals directly, without the external voltage divider a mains-range relay would need. Where the signal to monitor runs up to 500 V instead, the RM22UA33MR sibling in the same 22.5 mm housing covers 15-500 V without changing the 24-240 V AC/DC supply or the 2 C/O 8 A output rating, so the two parts are interchangeable on an existing panel footprint depending only on the signal range needed. Reliability data rates the RM22UA family at B10d = 290,000 operations and an MTTFd of 308.2 years, consistent across the 1-100 V and 15-500 V measurement-range variants since the output stage and mechanical contacts are shared hardware. The front test button exercises both output contacts without needing to force an actual overvoltage or undervoltage condition on the live measurement input, which speeds up commissioning checks on a new panel build.
Specification
Full specification
Main 9
| Range of Product | Harmony Control Relays |
|---|---|
| Relay Type | Voltage control relay |
| Product or Component Type | Voltage control relay |
| Relay name | RM22UA |
| Relay monitored parameters | Undervoltage and overvoltage in window mode, Overvoltage or undervoltage detection |
| Control Type | With test button |
| Contacts type and composition | 2 C/O |
| Phase | 1 phase |
| Supply circuit type | DC |
Complementary 25
| [Us] rated supply voltage | 24...240 V AC/DC 50/60 Hz, non self-powered |
|---|---|
| Supply voltage limits | 20.4…264 V AC/DC |
| Power consumption in VA | 3.5 VA AC |
| Measurement range | 1...100 V AC/DC |
| Maximum measuring cycle | 100 ms measurement cycle as true rms value |
| Hysteresis | 3 % fixed full scale for window mode, 5…50 % adjustable threshold setting |
| Repeat accuracy | +/- 0.5 % input and measurement circuit, +/- 2 % time delay |
| Measurement error | < 1 % over the whole range with voltage variation, 0.05 %/°C with temperature variation |
| Time delay type | Adjustable 0.1...30 s, +/- 10 % of the full scale value Tt- time delay upon fault |
| Setting accuracy of time delay | 10 % |
| Reset time | 1500 ms at maximum voltage |
| Response time | <= 500 ms |
| Power on delay | 600 ms |
| Output contacts | 2 C/O |
| nominal output current | 8 A |
| Maximum switching voltage | 250 V AC |
| Switching capacity in VA | 2000 VA |
| Minimum switching current | 10 mA 5 V DC |
| Maximum switching current | 8 A AC |
| Electrical durability | 100000 cycles |
| Mechanical durability | 10000000 cycles |
| Contacts material | Cadmium free |
| Maximum power consumption in W | 1.5 W DC |
| Resistance across terminals | 110 kOhm E2-M terminals, 22 kOhm E1-M terminals, 220 kOhm E3-M terminals |
| Insulation | Between supply and measurement |
Environment 22
| Electromagnetic compatibility | Immunity for residential, commercial and light-industrial environments conforming to IEC 61000-6-1, Immunity for industrial environments conforming to IEC 61000-6-2, Emission standard for residential, commercial and light-industrial environments conforming to IEC 61000-6-3, Emission standard for industrial environments conforming to IEC 61000-6-4, Electrostatic discharge - test level: 6 kV level 3 (contact discharge) conforming to IEC 61000-4-2, Electrostatic discharge - test level: 8 kV level 3 (air discharge) conforming to IEC 61000-4-2 |
|---|---|
| Standards | IEC 60255-1 |
| Product Certifications | GL, UL, CCC, EAC, CE, RCM, CSA |
| Ambient Air Temperature for Storage | -40…158 °F (-40…70 °C), -40…158 °F (-40…70 °C) |
| Ambient air temperature for operation | -4…122 °F (-20…50 °C) 60 Hz, -4…140 °F (-20…60 °C) 50 Hz |
| Relative humidity | 93…97 % 77…131 °F (25…55 °C) IEC 60068-2-30 |
| Vibration resistance | 0.075 mm 10…58.1 Hz) not in operation IEC 60068-2-6, 1 gn 10…58.1 Hz) not in operation IEC 60068-2-6, 0.035 mm 58.1…150 Hz) in operation IEC 60068-2-6, 0.5 gn 58.1…150 Hz) in operation IEC 60068-2-6 |
| Shock resistance | 15 gn 11 ms) not in operation IEC 60068-2-27, 5 gn 11 ms) in operation IEC 60068-2-27 |
| IP degree of protection | IP20 IEC 60529 terminals), IP40 IEC 60529 housing), IP50 IEC 60529 front panel) |
| Pollution degree | 3 IEC 60664-1 |
| Overvoltage category | III conforming to IEC 60664-1 |
| Dielectric test voltage | 2.5 kV AC 50 Hz, 1 min IEC 60255-27 |
| Insulation resistance | > 100 MOhm 500 V DC |
| Connections - terminals | Screw terminals, 2 x 0.5...2 x 2.5 mm² 20 AWG...14 AWG) solid without cable end, Screw terminals, 2 x 0.2...2 x 1.5 mm² 24 AWG...16 AWG) flexible with cable end, Screw terminals, 1 x 0.5...1 x 3.3 mm² 20 AWG...12 AWG) solid without cable end, Screw terminals, 1 x 0.2...1 x 2.5 mm² 24 AWG...14 AWG) flexible with cable end |
| Tightening torque | 5.3…8.9 lbf.in (0.6…1 N.m) IEC 60947-1 |
| Housing material | Polycarbonate |
| Mounting support | 35 mm DIN rail conforming to IEC 60715 |
| Reliability data | B10d = 290000, MTTFd = 308.2 years |
| Height | 3.5 in (90 mm), 3.5 in (88.9 mm) |
| Width | 0.9 in (22.5 mm), 0.9 in (22.9 mm) |
| Depth | 2.9 in (73 mm), 2.9 in (73.7 mm) |
| Net Weight | 0.24 lb(US) (0.11 kg), 0.24 lb(US) (0.11 kg) |
Show all 69 specifications ↓ Show less ↑13 more values in Identification, Contractual warranty, Logistics.
Identification 7
| Part number | RM22UA32MR |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606480792243 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | ID |
|---|---|
| Shipping weight | 0.11 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
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Ask us for the datasheet
Certifications
Certifications and standards
- UL
- CSA
- CE
- CCC
- EAC
- IEC 60255-1
Quick answers
Questions about the RM22UA32MR
What is the rated current of RM22UA32MR?
The rated current of RM22UA32MR is 8 A.
Which supply voltage is RM22UA32MR rated for?
The rated operational voltage of RM22UA32MR is 24–240–DC V DC.
What is the HS code of RM22UA32MR for customs?
The tariff (HS) code on file for RM22UA32MR is 853649.
What is the EAN of RM22UA32MR?
The EAN (GTIN) of RM22UA32MR is 3606480792243.
Where does RM22UA32MR ship from, and how fast?
RM22UA32MR ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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