
Distribution box; Three-phase to single-phase current (400 V/230 V); 1 input; 4 outputs; Cod. A; MIDI; black
Distribution box; 230 V + SMI; 1 input; 5 outputs; Cod. B; MIDI; black
Distribution box WINSTA ® B coding
The distribution box from the WINSTA ® product line with protection against mismating is the advanced solution for reliable installation. A comprehensive range of accessories rounds out the WINSTA® product line from WAGO. For greater protection in electrical installations, the distribution box is provided with mechanical protection against mismating. The distribution box is protected against ingress by solid objects in accordance with protection type IP20 (When mated: IP2xC (These compact connectors are not designed for use in open, easily accessible areas!)). The SMI (Standard Motor Interface) protocol is an interface for selecting electronic drives, such as those used in sun protection equipment (roller shutters or sun blinds). Solutions like the WINSTA ® distribution boxes with B coding are suitable for process control, such as for lighting or in data networks. This distribution box can be used for a load of up to 20 A. Therefore, it can also be used for high power loads.
Push-in CAGE CLAMP® spring pressure connection technology – pluggable installation instead of laborious screw connections!
WINSTA® is the pluggable connection system that is optimally tailored to the strict requirements of electrical installation. It allows error-free installation of cables and components, quickly and reliably. Now you can also cut installation costs without compromising safety and quality: with protection against mismating eliminates the need for servicing and prevents unnecessary downtime.
protection against mismating eliminates errors
intuitive distribution box marking
products perfectly tailored to your requirements guarantee safe use
with B coding for use in process automation, such as lighting technology, among other examples
fast, secure installation
| Ratings per | IEC/EN 60664-1 |
| Nominal voltage (III/3) | 250 V |
| Rated impulse withstand voltage (III / 3) | 4 kV |
| Rated current | 20 A |
| Legend (ratings) | (III / 3) ≙ Overvoltage category III / Pollution degree 3 |
| Ratings per | IEC/EN 60664-1 / IEC/EN 60664-1 / IEC/EN 60664-1 |
| Overvoltage category | III / III / II |
| Pollution degree | 3 / 2 / 2 |
| Nominal voltage | 250 V |
| Rated impulse withstand voltage | 4 kV |
| Rated current | 20 A |
| Note on contact resistance | approx. 1 mΩ contact resistance approx. 0.25 mΩ contact transition (plug/socket) |
| Connection type | Input |
| Pluggable connector | MIDI plug, 5-pole (770-295/080-000) |
| Connection type | Output |
| Connector | MIDI socket, 5-pole (770-285/080-000) |
| Width | 190 mm / 7.48 inches |
| Height | 31 mm / 1.22 inches |
| Depth | 145 mm / 5.709 inches |
| Internal wiring | 1.5, 2.5 mm² |
| Technology | SMI |
| Use | SMI |
| Coding | B |
| Mounting type | Wall, screw mount, Installation on mounting plate |
| Protection type | IP20; When mated: IP2xC (These compact connectors are not designed for use in open, easily accessible areas!) |
| Mismating protection | Yes |
| Note on mismating protection | All WINSTA® components are 100% protected against mismating when:a.) plugging different numbers of polesb.) plugging while rotated 180 c.) plugging while laterally staggeredd.) plugging one pole |
| Locking of plug-in connection | locking lever |
| Note (material data) | Information on material specifications can be found here |
| Color | black |
| Insulation material (main housing) | Polyamide (PA66) |
| Flammability class per UL94 | V0 |
| Contact material | Copper or copper alloy; surface-treated |
| Contact plating | Tin |
| Fire load | 7.567 MJ |
| Weight | 441.1 g |
| Processing temperature | -5 … +40 °C |
| Continuous operating temperature | -35 … +85 °C |
| Note on continuous operating temperature | Insulating parts for temperatures ≤ 105 °C |
| PU (SPU) | 1 pcs |
| Packaging type | box |
| Country of origin | DE |
| GTIN | 4055143305846 |
| Customs tariff number | 85366990990 |
| UNSPSC | 39121406 |
| eCl@ss 10.0 | 27-44-06-03 |
| eCl@ss 9.0 | 27-44-06-03 |
| ETIM 9.0 | EC002567 |
| ETIM 10.0 | EC002567 |
| ECCN | NO US CLASSIFICATION |
| RoHS Compliance Status | Compliant,No Exemption |
| Technology | SMI |
No matching specifications
899-631/421-000 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Yes — mention it when you request a quote for 899-631/421-000 and we'll include express shipping options in our reply.
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 899-631/421-000, subject to availability and destination.

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