Harmony Control Relays
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3-PHASE CONTROL RELAY
three-Phase Asymmetry control relay 380…480Vac, 2 C/O
SKU RM22TA33Schneider Electric RM22TA33 is a 3-phase control relay in the Harmony Control Relays range. Key specifications include mounting support: 35 mm DIN rail conforming to IEC 60715; ip protection: IP20 (terminals) conforming to IEC 60529; net weight: 0.095 kg.
35 mm DIN rail conforming to IEC 60715Mounting support
IP20 (terminals) conforming to IEC 60529IP protection
0.095 kgNet weight
PRODUCT DATA
Technical specifications
Source: Schneider Electric product catalog.
Verified September 18, 2026.
| Product reference | RM22TA33 |
|---|---|
| Range of product | Harmony Control Relays |
| Relay type | Control relay |
| Product or component type | 3-phase control relay |
| Relay name | RM22TA |
| Control type | With test button |
| Relay monitored parameters | Phase sequence Phase failure detection Asymmetry |
| Contacts type and composition | 2 C/O |
| Supply voltage limits | 304…576 V AC |
| supply voltage frequency | 50...60 Hz +/- 10 % |
| Measurement range | 380...480 V voltage AC |
| Voltage detection threshold | < 100 V AC |
| Adjustment of asymmetry threshold | 5...15 % of Un selected |
| Setting accuracy of the switching threshold | +/- 10 % of the full scale |
| Repeat accuracy | +/- 0.5 % for input and measurement circuit +/- 3 % for 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 | <= 300 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 at 5 V DC |
| Maximum switching current | 8 A AC |
| Electrical durability | 100000 cycles |
| Mechanical durability | 10000000 cycles |
| Power consumption in VA | 15 VA at 480 V AC 60 Hz |
| Contacts material | Cadmium free |
| Maximum measuring cycle | 150 ms measurement cycle as true rms value |
| [Un] rated nominal voltage | , self-powered |
| 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 EAC CCC CE CSA UL RCM |
| Ambient air temperature for storage | -40…70 °C -40…70 °C |
| Ambient air temperature for operation | -20…50 °C at 60 Hz -20…60 °C at 50 Hz AC/DC |
| Relative humidity | 93…97 % at 25…55 °C conforming to IEC 60068-2-30 |
| Vibration resistance | 0.075 mm (f= 10…58.1 Hz) not in operation conforming to IEC 60068-2-6 1 gn (f= 10…58.1 Hz) not in operation conforming to IEC 60068-2-6 0.035 mm (f= 58.1…150 Hz) in operation conforming to IEC 60068-2-6 0.5 gn (f= 58.1…150 Hz) in operation conforming to IEC 60068-2-6 |
| Shock resistance | 15 gn (duration = 11 ms) for not in operation conforming to IEC 60068-2-27 5 gn (duration = 11 ms) for in operation conforming to IEC 60068-2-27 |
| IP degree of protection | IP20 (terminals) conforming to IEC 60529 IP40 (housing) conforming to IEC 60529 IP50 (front panel) conforming to IEC 60529 |
| Pollution degree | 3 conforming to IEC 60664-1 3 conforming to UL 508 |
| Overvoltage category | III conforming to IEC 60664-1 III conforming to UL 508 |
| Dielectric test voltage | 2.5 kV, 1 min AC 50 Hz conforming to IEC 60255-27 |
| Insulation resistance | > 100 MOhm at 500 V DC conforming to IEC 60255-27 |
| 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 | 0.6…1 N.m conforming to IEC 60947-1 |
| Housing material | Polycarbonate |
| Local signalling | LED (yellow) relay ON LED (green) power ON |
| Mounting support | 35 mm DIN rail conforming to IEC 60715 |
| Reliability data | MTTFd = 388.1 years B10d = 350000 |
| Width | 22.5 mm 22.9 mm |
| Height | 90 mm 88.9 mm |
| Depth | 73 mm 73.7 mm |
| Net weight | 0.095 kg 0.10 kg |
For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official Schneider Electric reference ↗.