Energy meter (MID25); for transformer connection; 1 A / 5 A; 3x230/400V; 50Hz; Modbus® and M-Bus; 2 x S0 interface; 2PU CT
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Quick facts
| Availability | Confirmed on request |
| Category | Energy Measurement Technology |
| Lifecycle | active |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
When can 879-3040 be shipped?
879-3040 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up 879-3040 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for 879-3040 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 879-3040, subject to availability and destination.
<p><b>Short description:</b></p><p>Crucial for trimming costs, comprehensive energy measurement is necessary to optimize energy consumption. WAGO’s portfolio has energy meters that simplify this task while offering several key advantages. They use push-in connection technology with a lever, making them connect quickly and easily. Versions for current transformers are even slimmer at only 35 mm. These slim profiles save a tremendous amount of control cabinet space. In addition to the values for active and reactive energy, the energy meters also record the mains frequency, as well as current, voltage and power for all phases. And the user can conveniently scan all of these energy characteristics at a glance on a large, illuminated display.</p><p><b>Features:</b></p><ul><li>Push-in CAGE CLAMP<sup>®</sup> and lever save time at every stage</li><li>Real space savings: 35 mm wide (2PU CT)</li><li>Measurement of supply and purchase</li><li>Energy measurement in four tariffs</li><li>The communications pro: M-Bus/Modbus<sup>®</sup> interface and two S0 pulse outputs</li><li>Full transparency at a glance: display energy quality characteristics on an illuminated full-format display</li><li>Intuitive configuration: touch-sensitive controls and configuration app via <i>Bluetooth<sup>®</sup></i></li></ul>
Specifications
Technical data - Configuration
| Configuration options | Touch-sensitive controls, Configuration app via Bluetooth® |
Technical data - Input
| Input signal type | Voltage, Current |
| Network configuration | Two-wire, three-wire and four-wire networks |
| Reference current I<sub>ref</sub> | 1 A |
| Current transformer (secondary) | 1, 5 A |
| Current transformer ratio | 1:1 … 9999 : 1 / 5:5 … 9995 : 5 |
| Measured variable | Voltage, Current, Electrical output, Mains frequency |
| Nominal input voltage U<sub>i nom</sub> | 3 x 230 … 400 VAC |
| Input voltage range | ±20 % |
| Input current I<sub>i</sub> | ≤ 5 A |
| Frequency range | 45 … 60 Hz |
Technical data - Communication
| Communications | Modbus®, M-Bus, Bluetooth® |
| Interface | RS-485 (2-wire); 2 x S0 interfaces (configurable) |
| Indicators | LCD with backlight |
| Rate control input | 230 VAC |
Technical data - Signal processing
| Measured variables (calculated) | Active and reactive energy in supply and reference direction |
| Measurement type (load profile) | No |
| Measured value acquisition | for transformer connection; |
Technical data - Measurement error
| Accuracy class | Class B (= 1 % error); Active energy per EN 50470-3 |
| Calibration validity period | 8 Jahre |
Technical data - Power supply
| Power supply type | Via measurement circuit |
| Power consumption P<sub>max.</sub> (phase; active power) | 2 W |
| Power consumption P<sub>max.</sub> (phase; apparent power) | 10 VA |
Safety and protection
| Dielectric strength | 4 kV; 1 min |
| Impulse withstand voltage (1.2/50 μs) | 6 kV |
| Pollution degree | 2 |
| Protection class | II |
| Protection type | IP51 / IP20; IP51 (front side); IP20 (connection) |
Connection data
| Connection position | Output bottom (PU) |
| Design | 2PU CT |
Connection data - Connection 1
| Connection type | Voltage/current |
| Connection technology | Push-in CAGE CLAMP® |
| WAGO connector | WAGO 2604 Series |
| Actuation type | Lever |
| Strip length | 9 … 11 mm / 0.35 … 0.43 inches |
| Solid conductor | 0.2 … 4 mm² / 24 … 12 AWG |
| Fine-stranded conductor | 0.2 … 4 mm² / 24 … 12 AWG |
| Fine-stranded conductor; with insulated ferrule | 0.25 … 2.5 mm² |
| Fine-stranded conductor; with uninsulated ferrule | 0.25 … 2.5 mm² |
Connection data - Connection 2
| Connection type | Communication/rate control input |
| Connection technology | Push-in CAGE CLAMP® |
| WAGO connector | WAGO 2604 Series |
| Actuation type | Lever |
| Strip length | 9 … 11 mm / 0.35 … 0.43 inches |
| Solid conductor | 0.2 … 4 mm² / 24 … 12 AWG |
| Fine-stranded conductor | 0.2 … 4 mm² / 24 … 12 AWG |
| Fine-stranded conductor; with insulated ferrule | 0.25 … 2.5 mm² |
| Fine-stranded conductor; with uninsulated ferrule | 0.25 … 2.5 mm² |
Physical data
| Width | 36 mm / 1.417 inches |
| Height | 140 mm / 5.512 inches |
| Depth | 63 mm / 2.48 inches |
| Note (dimensions) | Height without cover: 97 mm |
Mechanical data
| Mounting type | DIN-35 rail |
| Housing design | DIN-rail-mount enclosure |
Material data
| Housing material | PC 940A |
| Weight | 165 g |
Environmental requirements
| Ambient temperature (operation) | -40 … +70 °C |
| Relative humidity | ≤ 75 % (for storage ≤ 95 %) |
Standards and specifications
| Conformity marking | CE |
| Standards/specifications | EN 50470-1/3 |
| Accounting guideline | MID |
Commercial data
| PU (SPU) | 1 pcs |
| Packaging type | Box |
| Country of origin | CN |
| Customs tariff number | 90283019000 |
Product Classification
| UNSPSC | 41113630 |
| ETIM 9.0 | EC001102 |
| ETIM 10.0 | EC001102 |
| ECCN | NO US CLASSIFICATION |
Environmental Product Compliance
| RoHS Compliance Status | Compliant,No Exemption |









