Product Model
RM22TA33
Selling Points
- 1Phase Asymmetry Monitoring: Detects and alerts on phase asymmetry in 3-phase networks.
- 2Phase Failure Detection: Automatically shuts down and provides fault information for quick troubleshooting.
- 3DIN Rail Mounting: Slim 22.5mm width for easy installation on DIN rail, using the same space as modular 1-pole DIN devices.
- 4Selectable Memory Function: Allows for customizable settings with screw trimmers for precise control.
- 5Cadmium-Free Design: Ensures environmental safety with self-extinguishing plastic housing material.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Range of Product | Harmony Control Relays | Relay Type | Control relay |
Product or Component Type | 3-phase control relay | Phase | 3 phase |
Relay name | RM22TA | Relay monitored parameters | Phase sequence<br />Phase failure detection<br />Asymmetry |
Time delay type | Adjustable 0.1...30 s, +/- 10 % of the full scale value Tt- time delay upon fault | Switching capacity in VA | 2000 VA |
Measurement range | 380...480 V voltage AC | Contacts type and composition | 2 C/O |
Reset time | 1500 ms at maximum voltage | Maximum switching voltage | 250 V AC |
Minimum switching current | 10 mA 5 V DC | Maximum switching current | 8 A AC |
[Us] Rated Supply Voltage | AC/DC | Supply voltage limits | 304…576 V AC |
operating limits | - 20 % + 20 % Un | Power consumption in VA | 15 VA 480 V AC 60 Hz |
Voltage detection threshold | < 100 V AC | supply voltage frequency | 50...60 Hz +/- 10 % |
Output contacts | 2 C/O | Setting accuracy of the switching threshold | +/- 10 % of the full scale |
Switching threshold drift | <= 0.05 % per degree centigrade depending permissible ambient air temperature<br /><= 1 % within the supply voltage range | Setting accuracy of time delay | 10 P |
Time delay drift | <= 0.05 % per degree centigrade depending permissible ambient air temperature<br /><= 1 % within the supply voltage range | Hysteresis | 2 % fixed selectable |
Run-up delay at power-up | 650 ms | Maximum measuring cycle | 150 ms measurement cycle as true rms value |
Voltage range | 380...480 V phase to phase | Adjustment of asymmetry threshold | 5...15 % of Un selected |
Repeat accuracy | +/- 0.5 % input and measurement circuit<br />+/- 3 % time delay | Measurement error | < 1 % over the whole range with voltage variation<br />< 0.05 %/°C with temperature variation |
Response time | <= 300 ms | Overvoltage category | III IEC 60664-1<br />III UL 508 |
Insulation resistance | > 100 MOhm 500 V DC IEC 60255-27 | Mounting position | Any position |
Connections - terminals | Screw terminals, 2 x 0.5...2 x 2.5 mm² AWG 20...AWG 14) solid without cable end<br />Screw terminals, 2 x 0.2...2 x 1.5 mm² AWG 24...AWG 16) flexible with cable end<br />Screw terminals, 1 x 0.5...1 x 3.3 mm² AWG 20...AWG 12) solid without cable end<br />Screw terminals, 1 x 0.2...1 x 2.5 mm² AWG 24...AWG 14) flexible with cable end | Tightening torque | 5.3…8.9 lbf.in (0.6…1 N.m) IEC 60947-1 |
Housing material | Self-extinguishing plastic | Status LED | LED (Yellow) relay ON<br />LED (Green) power ON |
Mounting support | 35 mm DIN rail conforming to IEC 60715 | Electrical durability | 100000 cycles |
Mechanical durability | 10000000 cycles | Utilisation category | AC-15 IEC 60947-5-1<br />DC-13 IEC 60947-5-1<br />AC-1 IEC 60947-4-1<br />DC-1 IEC 60947-4-1 |
[Un] rated nominal voltage | , self-powered | Safety reliability data | MTTFd = 388.1 years<br />B10d = 350000 |
Contacts material | Cadmium free | Control Type | With test button |
Width | 0.9 in (22.5 mm) | Net Weight | 0.20 lb(US) (0.09 kg) |
Immunity to microbreaks | 10 ms | Electromagnetic compatibility | Immunity for residential, commercial and light-industrial environments conforming to IEC 61000-6-1<br />Immunity for industrial environments conforming to IEC 61000-6-2<br />Emission standard for residential, commercial and light-industrial environments conforming to IEC 61000-6-3<br />Emission standard for industrial environments conforming to IEC 61000-6-4<br />Electrostatic discharge - test level: 6 kV level 3 (contact discharge) conforming to IEC 61000-4-2<br />Electrostatic discharge - test level: 8 kV level 3 (air discharge) conforming to IEC 61000-4-2<br />Radiated radio-frequency electromagnetic field immunity test - test level: 10 V/m level 3 conforming to IEC 61000-4-3<br />Electrical fast transient/burst immunity test - test level: 4 kV level 4 (direct) conforming to IEC 61000-4-4<br />Electrical fast transient/burst immunity test - test level: 2 kV level 4 (capacitive coupling) conforming to IEC 61000-4-4<br />Surge immunity test - test level: 4 kV level 4 (common mode) conforming to IEC 61000-4-5<br />Surge immunity test - test level: 2 kV level 4 (differential mode) conforming to IEC 61000-4-5<br />Conducted and radiated emissions class B group 1 conforming to CISPR 11<br />Conducted and radiated emissions class B conforming to CISPR 22 |
Standards | IEC 60255-1 | Product Certifications | GL<br />EAC<br />CCC<br />CE<br />CSA<br />UL<br />RCM |
Ambient Air Temperature for Storage | -40…158 °F (-40…70 °C) | Ambient air temperature for operation | -4…122 °F (-20…50 °C) 60 Hz<br />-4…140 °F (-20…60 °C) 50 Hz AC/DC |
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<br />1 gn 10…58.1 Hz) not in operation IEC 60068-2-6<br />0.035 mm 58.1…150 Hz) in operation IEC 60068-2-6<br />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<br />5 gn 11 ms) in operation IEC 60068-2-27 | IP degree of protection | IP20 IEC 60529 terminals)<br />IP40 IEC 60529 housing)<br />IP50 IEC 60529 front panel) |
Pollution degree | 3 IEC 60664-1<br />3 UL 508 | Dielectric test voltage | 2.5 kV AC 50 Hz, 1 min IEC 60255-27 |
Specifications may be subject to change without notice