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Wago
787-2861/050-000Electronic circuit breaker; 1-channel; 24 VDC input voltage; 0.5 A; Signal contact
Wago 787-2861/400-000
Electronic circuit breaker; 1-channel; 24 VDC input voltage; 4 A; Signal contact
- MPN
- 787-2861/400-000
Price and lead time confirmed within 1 business day
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- 2You get a written quote by email
- 3Approve it and we ship — in-stock parts within 1 business day
- 12-month warranty (new) · 3-month (used/refurbished)
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What is the Wago 787-2861/400-000?
Features:
Space-saving ECB with one channel
Reliably and safely trips in the event of an overload and short circuit on the secondary side
Switch-on capacity > 50,000 μF
Enables the use of an economical, standard power supply
Minimizes wiring via two voltage outputs and maximizes commoning options on both input and output sides (e.g., commoning of the output voltage on 857 and 2857 Series devices)
Status signal – adjustable as single or group message
Reset, switch on/off via remote input or local switch
Prevents power supply overload due to total inrush current thanks to time-delayed switching on during interconnected operation
Specifications
Technical data - Input
| Nominal input voltage U<sub>i nom</sub> | 24 VDC |
| Input voltage range | 18 … 30 VDC |
Technical data - Output
| Total number of channels (module) | 1 |
| Nominal output voltage U<sub>o nom</sub> | 1 x 24 VDC |
| Output voltage range | 18 … 30 VDC (Ue − voltage drop) |
| Voltage drop | ≤ 25 mV (4 A) |
| Nominal output current I<sub>o nom</sub> | 1 x 4 A (fixed setting) |
| Trip time | 4 ms … 100 s (load-dependent) |
| Switch-on capacity | > 50000 µF per channel |
| Switch-on behavior | Time-delayed channel switching (load-dependent, min. 170 ms / max. 500 ms) |
| Active current limitation | No |
| Current limitation | No |
Technical data - Signaling and communication
| Signaling | 1 x Status LED (green/yellow/red/blue), 1 x Control input, 1 x Active signal output (Ui, max. 4 mA) |
| Operation status indicator | Green LED (channel OK), Red LED (tripped channel) |
| Remote input | 18 … 30 VDC signal, switches on/off and resets the channel |
Technical data - Efficiency/power losses
| Power loss P<sub>l</sub> | ≤ 0.36 W |
| Efficiency (typ.) | 96 % |
Technical data - Circuit protection
| Internal fuse | T 15 A |
Safety and protection
| Isolation voltage (connectors – housing) | 0.5 kVDC |
| Protection class | III |
| Protection type | IP20; per EN 60529 |
| Reverse voltage protection | No |
| Pollution degree | 2 |
| Transient suppression (primary) | Suppressor diode (33 V) |
| Parallel operation of single channels | Not permitted |
| Series operation | No |
| MTBF | 1,258,733 h (per MIL-HDBK-217F2) |
Connection data
| Number of jumper slots | 8 |
Connection data - Connection 1
| Connection technology | Push-in CAGE CLAMP® |
| WAGO connector | WAGO 857 Series |
| Solid conductor | 0.08 … 2.5 mm² / 28 … 14 AWG |
| Fine-stranded conductor | 0.34 … 2.5 mm² / 22 … 14 AWG |
| Strip length | 9 … 10 mm / 0.35 … 0.39 inches |
Physical data
| Width | 6 mm / 0.236 inches |
| Height | 94 mm / 3.701 inches |
| Depth from upper-edge of DIN-rail | 97.8 mm / 3.85 inches |
Mechanical data
| Mounting type | DIN-35 rail |
Material data
| Weight | 34 g |
Environmental requirements
| Ambient temperature (operation) | -25 … +70 °C (Device starts at -40 °C (type-tested)) |
| Ambient temperature (storage) | -40 … +85 °C |
| Relative humidity | 10 … 95 % (no condensation permissible) |
| Derating | No derating |
Standards and specifications
| Conformity marking | CE |
| Standards/specifications | EN 61000-6-2, EN 61000-6-3, UL 61010-2-201, DNV |
Commercial data
| PU (SPU) | 1 pcs |
| Packaging type | Bag |
| Country of origin | CN |
| Customs tariff number | 85362010900 |
Product Classification
| UNSPSC | 39121634 |
| eCl@ss 10.0 | 27-37-18-02 |
| eCl@ss 9.0 | 27-37-18-02 |
| ETIM 9.0 | EC001440 |
| ETIM 10.0 | EC001440 |
| ECCN | NO US CLASSIFICATION |
Environmental Product Compliance
| CAS-No. | 1303-86-2, 1317-36-8, 7439-92-1 |
| REACH Candidate List Substance | Diboron trioxide, Lead, Lead monoxide |
| RoHS Compliance Status | Compliant,With Exemption |
| RoHS Exemption | 6(c), 7(a), 7(c)-I, 7(c)-II |
| SCIP notification number (Austria) | c2ff52e8-e67d-4827-ad40-f376e0d560e0 |
| SCIP notification number (Belgium) | b564c11f-097e-473e-a2af-daef0e6ffe12 |
| SCIP notification number (Bulgaria) | 6746d39f-81e8-4e38-90bb-5eb4838decc2 |
| SCIP notification number (Czech Republic) | b8eb40d0-27ae-4ad0-a085-60457aba789c |
| SCIP notification number (Denmark) | 2b9e5d42-db92-4722-bd91-b86de8410560 |
| SCIP notification number (Finland) | 1a79cb1b-165c-4961-8f6a-bf8080fcedac |
| SCIP notification number (France) | 25002ba4-4dfb-40ec-920c-e6b2d55f69b8 |
| SCIP notification number (Germany) | cedcc140-ac9a-48eb-b7c1-7d3d70904da5 |
| SCIP notification number (Hungary) | ce11c103-a8e7-4200-bea2-17cd013b6abe |
| SCIP notification number (Italy) | fdc99228-172f-4a25-8a1d-2f9d06d4dcca |
| SCIP notification number (Netherlands) | 318465f7-58d2-4f2e-8345-d2d3d9c7045a |
| SCIP notification number (Poland) | 37c24cc8-e412-4b5d-95fc-b101d0e96c4c |
| SCIP notification number (Romania) | f852b938-cd98-4122-9663-afd8dc0b2049 |
| SCIP notification number (Sweden) | a0d501f1-4bd1-4599-bb53-300af64f5722 |
No matching specifications
787-2861/400-000: frequently asked questions
When can 787-2861/400-000 be shipped?
787-2861/400-000 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 787-2861/400-000 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 787-2861/400-000 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 787-2861/400-000, subject to availability and destination.
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Wago 787-2861/400-000Price and lead time confirmed within 1 business day
Request a Quote