Properties
| Version | Power measurement/display for 1-, 3-phase mains, 100 A, direct measurement, pulse output,, Modbus RTU |
| Order No. | 7760051003 |
| Type | EM122-RTU-2P |
| GTIN (EAN) | 6944169818196 |
| Qty. | 1 items |
| Depth | 66 mm |
| Depth (inches) | 2.598 inch |
| Height | 100 mm |
| Height (inches) | 3.937 inch |
| Width | 72 mm |
| Width (inches) | 2.835 inch |
| Net weight | 350 g |
| Storage temperature | -40 °C...80 °C |
| Operating temperature | -25 °C...55 °C |
| Humidity | 0...90 % (no condensation) |
| AC input cable connection | Screw connection |
| Current-measuring channels | 3 |
| Max. current | 100 A |
| Measuring accuracy for current | 0.5 % |
| Rated current | 10 A |
| Four-wire system | Yes |
| Frequency range, max. | 60 Hz |
| Frequency range, min. | 50 Hz |
| Low voltage network |
1 phase 2 wire (L + N)
3 phase 3 wire (L1 + L2 + L3) 3 phase 4 wire (L1 + L2 + L3 + N) |
| Measurement range, voltage L-L, AC | 240…480 V |
| Measurement range, voltage L-N, AC | 176…276 V |
| Measuring accuracy for voltage | 0.5 % |
| Three-wire system | Yes |
| Voltage type | AC |
| Addressing | 1 - 247 |
| Baud rate | 9600/19200/38400 bit/s |
| Communication | Bi-directional |
| Parity |
none
even odd |
| Stop bits |
1
2 |
| Interface | RS485 |
| Protocol | Modbus RTU |
| Digital output configurable | Yes |
| Number of pulse outputs | 2 |
| Update interval register | 100 ms |
| Software | EM configuration tools |
| Display | LCD |
| Display value |
Voltage
current measured value Apparent power Reactive power Power factor Frequency Import / export active power demand Total import / export active energy Total import / export reactive energy Total system power demand |
| Max. current | 100 A |
| Pollution severity | 2 |
| Power factor input | 1 % |
| Protection degree | IP51 |
| Rated current | 10 A |
| Type of mounting | DIN rail |
| Version |
Power measurement/display for 1-, 3-phase mains
100 A direct measurement pulse output, Modbus RTU |
| Measurement range, voltage L-N, AC | 176…276 V |
| Measurement range, voltage L-L, AC | 240…480 V |
| Surge voltage category | III |
| Three-wire system | Yes |
| Four-wire system | Yes |
| Sampling frequency 50/60 Hz | 4.1 kHz |
| Continuous measurements | Yes |
| Measurement result per second | 100 ms |
| Current-measuring channels | 3 |
| Measuring accuracy for voltage | 0.5 % |
| Measuring accuracy for current | 0.5 % |
| Measurement accuracy for active energy (kWh, .../5 A) | Class 0.5 |
| Impulse withstand voltage | 6 kV (1.2/50 µs) |
| Insulation voltage input or output/supply | 4 kVeff / 1 min. |
| Pollution severity | 2 |
| Surge voltage category | III |
| Stripping length | 8 mm |
| Type of connection | Screw connection |
| Wire connection cross section, finely stranded, min. | 0.5 mm² |
| Wire connection cross section, finely stranded, max. | 2 mm² |
| Wire connection cross section, finely stranded, two clampable wires, min. | 2.5 mm² |
| Wire cross-section, finely stranded, two clampable wires, max. | 25 mm² |
| Approval/Certificate/Document of Conformity | [Declaration of Conformity](https://mdcop.weidmueller.com/mediadelivery/asset/900_246620) |
| Engineering Data | [CAD data -- STEP](https://mdcop.weidmueller.com/mediadelivery/asset/900_302143) |
| Software |
[EM configuration tools](https://mdcop.weidmueller.com/mediadelivery/asset/900_224560)
[Device description -- Device description -- MODBUS address list](https://mdcop.weidmueller.com/mediadelivery/asset/900_246624) |
| User Documentation |
[Manual EM configuration tools Chinese](https://mdcop.weidmueller.com/mediadelivery/asset/900_224564)
[Manual EM configuration tools English](https://mdcop.weidmueller.com/mediadelivery/asset/900_224565) [Manual EM122 Chinese](https://mdcop.weidmueller.com/mediadelivery/asset/900_256636) [Manual EM122 English](https://mdcop.weidmueller.com/mediadelivery/asset/900_256637) |
| Catalogues | [Catalogues in PDF-format](LINK/Catalog.html) |
| ETIM 6.0 | EC002301 |
| ETIM 7.0 | EC002301 |
| ETIM 8.0 | EC002301 |
| ETIM 9.0 | EC002301 |
| ECLASS 9.0 | 27-14-23-30 |
| ECLASS 9.1 | 27-21-03-01 |
| ECLASS 10.0 | 27-14-23-30 |
| ECLASS 11.0 | 27-14-23-30 |
| ECLASS 12.0 | 27-14-23-30 |
| ECLASS 13.0 | 27-14-23-30 |
| Approvals |  |
| ROHS | Conform |