Properties
| Version | Power measurement/display for 1-, 3-phase mains |
| Order No. | 2500860000 |
| Type | ENERGY METER 520-24 |
| GTIN (EAN) | 4050118514056 |
| Qty. | 1 items |
| Depth | 48 mm |
| Depth (inches) | 1.89 inch |
| Height | 96 mm |
| Height (inches) | 3.78 inch |
| Width | 96 mm |
| Width (inches) | 3.78 inch |
| Net weight | 265 g |
| Storage temperature | -25 °C...70 °C |
| Humidity at storage temperature | 0...90 % RH |
| Operating temperature | -10 °C...55 °C |
| Humidity at operating temperature | 0 - 75% RH |
| Current-measuring channels | 3 |
| Distortion factor THD-I in % | Yes |
| Harmonics, per order / current | 1.-40. |
| Measuring accuracy for current | 0.2 % |
| Rated current | 1 / 5 A |
| Residual current measuring | No |
| Distortion factor THD-U in % | Yes |
| Four-wire system | Yes |
| Harmonics, per order / voltage | 1.-40. |
| Measurement range, voltage L-L, AC | 480 V |
| Measurement range, voltage L-N, AC | 277 V |
| Measuring accuracy for voltage | 0.2 % |
| Quadrants | 4 |
| Three-wire system | Yes |
| Interface | RS485: 9,6 – 115,2 kbps |
| Protocol | Modbus RTU |
| Number of digital outputs | 2 |
| Number of pulse outputs | 2 |
| Temperature input | No |
| Memory; minimum and maximum values | Yes |
| Update interval register | 200 ms |
| Software | ecoExplorer go® |
| Integrated logic | Yes |
| Protection degree |
IP20
IP40 |
| Rated current | 1 / 5 A |
| Version | Power measurement/display for 1-, 3-phase mains |
| Standards |
EN 61326-1
IEC 61010-1 IEC 61010-2-030 |
| Measurement range, voltage L-N, AC | 277 V |
| Measurement range, voltage L-L, AC | 480 V |
| Surge voltage category | 300 V CAT III |
| Voltage supply |
24 - 90 V AC (50/60 Hz)
24 - 90 V DC |
| Supply voltage | 24 V |
| Three-wire system | Yes |
| Four-wire system | Yes |
| Quadrants | 4 |
| Sampling frequency 50/60 Hz | 25.6 kHz |
| Continuous measurements | Yes |
| Measurement result per second | 5 ms |
| Effective value from the period (50/60 Hz) | 10 / 12 |
| Residual current measuring | No |
| Current-measuring channels | 3 |
| Measuring accuracy for voltage | 0.2 % |
| Measuring accuracy for current | 0.2 % |
| Measurement accuracy for active energy (kWh, .../5 A) | Class 0.5S |
| Operating-hours counter | Yes |
| Bimetal function | Yes |
| Harmonics, per order / voltage | 1.-40. |
| Harmonics, per order / current | 1.-40. |
| Distortion factor THD-U in % | Yes |
| Distortion factor THD-I in % | Yes |
| Unbalanced | No |
| Positive, negative and zero system | Yes |
| Brief interruptions | No |
| Sequence-of-events recorder function | No |
| Surge voltage category | 300 V CAT III |
| Approval/Certificate/Document of Conformity | [Application notes -- Declaration of Conformity](https://mdcop.weidmueller.com/mediadelivery/asset/900_239747) |
| Engineering Data | [CAD data -- STEP](https://mdcop.weidmueller.com/mediadelivery/asset/900_212075) |
| CADENAS eCATALOG | [CAX data](https://weidmueller-embedded.partcommunity.com?catalog=weidmueller_qs&part=2500860000) |
| Software |
[MODBUS address list](https://mdcop.weidmueller.com/mediadelivery/asset/900_53424)
[Win64 - ecoExplorer go](https://mdcop.weidmueller.com/mediadelivery/asset/900_53465) |
| User Documentation |
[Quick Guide German/English](https://mdcop.weidmueller.com/mediadelivery/asset/900_53375)
[Application notes -- Manual ECOEXPLORER GO English](https://mdcop.weidmueller.com/mediadelivery/asset/900_56224) [Manual Energy Meter 520 German/English](https://mdcop.weidmueller.com/mediadelivery/asset/900_58460) |
| 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 |   |
| Approvals | CE |
| ROHS | Conform |
| UL File Number Search | [UL Website](LINK/UL_search.html) |
| Certificate no. (cULus) | E469563 |
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