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Wago
770-1766H-distribution connector; 3-pole; Cod. B; 1 input; 2 outputs; outputs on both sides; 2 locking levers; pink
Wago 770-1781
H-distribution connector; 4-pole; Cod. B; 1 input; 2 outputs; outputs on one side; 3 locking levers; for flying leads; gray
- MPN
- 770-1781
- Category
- Pluggable Connectors
Price and lead time confirmed within 1 business day
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- 12-month warranty (new) · 3-month (used/refurbished)
- 30-day returns, no restocking fee on unused parts
- Ships via
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What is the Wago 770-1781?
Distribution connector WINSTA ® MIDI 4-pole
The WINSTA ® MIDI distribution connector B coding is the pluggable solution for your application in control cabinets, on PCBs or for lighting connections. WAGO pluggable installation connectors can be used when specifications repeat or are distributed on a defined grid, for example for installing grid lighting or flush-mount lighting. The mechanical coding and color coding of the pluggable installation connector ensure error-free installation of the individual components – including protection against mismating. The pluggable installation connector is protected in accordance with protection type IP20 (When mated: IP2xC (These compact connectors are not designed for use in open, easily accessible areas!)). That results in the fact that users' fingers will never come into contact with electrified contact elements. Solutions like the WINSTA ® MIDI pluggable installation connectors with B coding are appropriate for applications related to process control, such as for lighting or within data networks. The rated current and voltage are important criteria for selecting a pluggable installation connector: They tell us about the product's domains of use. This product has a current rating of 25 A – therefore it is suitable for high power loads. The WINSTA ® MIDI Pluggable Connection System with Push-in CAGE CLAMP® spring pressure connection technology facilitates safe electrification. Thanks to the included test slot, it is possible to check connections even when they are plugged in. That saves time and reduces installation labor and costs.
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 ensures error-free installation of cables and components, quickly and reliably. Take advantage of the pluggable version of our maintenance-free spring pressure connection technology too! Plan your installation with with protection type IP20 from WAGO.
protection against mismating eliminates errors
pre-assembled versions
for automation controllers
custom-engineered solutions
fast, secure installation
Specifications
Notes
| Variants: | Other pole markings, Other versions (or variants) can be requested from WAGO Sales or configured at https://configurator.wago.com/. |
Electrical data - Ratings per IEC/EN
| Ratings per | IEC/EN 60664-1 |
| Nominal voltage (III/3) | 400 V |
| Rated impulse withstand voltage (III / 3) | 6 kV |
| Rated current | 25 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 | 400 V |
| Rated impulse withstand voltage | 6 kV |
| Rated current | 25 A |
Electrical data - Ratings per IEC/EN – Notes
| Rated current (note) | 25 A for 3-pole load20 A for 4-pole load |
Electrical data - Ratings per UL 1977
| Note for the US market | Some versions may also be used for current interruption in accordance with the UL certificate in select applications with currents below 16 A and voltages up to 600 V. For further information, please contact your local sales office. |
| Rated voltage (UL 1977) | 600 V |
| Rated current UL 1977 | 23 A |
| Approvals per | UL 1977 |
| Rated voltage | 600 V |
| Rated current | 23 A |
Electrical data - General information
| Note on contact resistance | approx. 1 mΩ of contact resistance approx. 0.25 mΩ contact transition plug/socket |
Connection data
| Total number of potentials | 4 |
Connection data - Connection 1
| Pole number | 4 |
Physical data
| Pin spacing | 10 mm / 0.394 inches |
| Width | 40 mm / 1.575 inches |
| Height | 36.7 mm / 1.445 inches |
| Depth | 51 mm / 2.008 inches |
Mechanical data
| Use | Control technology |
| Coding | B |
| Marking | 1 2 3 4 |
| Potential marking | 1 2 3 4 |
| Mating force of a plug-in connection | approx. 20 … 70 N (depending on pole number) |
| Retention force of a plug-in connection | When locked: > 80 N |
| Unmating force of a plug-in connection | Unlocked: approx. 20 … 70 N (depending on pole number) |
| Number of mating cycles | 200, without resistive load |
| Type of distribution box | h-distribution connector, outputs at one end |
| Protection type | IP20; When mated: IP2xC (These compact connectors are not designed for use in open, easily accessible areas!) |
| Suitable | for flying leads |
Plug-in connection
| Contact type (pluggable connector) | Socket/plug |
| 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 lever | yes |
| Locking of plug-in connection | locking lever |
| Note on locking system | All connectors for mounted installations (snap-in versions for lighting fixtures or devices, all types of PCB and distribution connectors) are factory-equipped with locking levers to ensure plugs and sockets are securely locked. Additional locking levers are only required for flying leads (plug/socket). |
Material data
| Note (material data) | Information on material specifications can be found here |
| Color | gray |
| Insulation material (main housing) | Polyamide (PA66) |
| Flammability class per UL94 | V0 |
| Contact material | Copper or copper alloy; surface-treated |
| Contact plating | Tin |
| Fire load | 0.584 MJ |
| Weight | 32.4 g |
Environmental requirements
| Processing temperature | -5 … +40 °C |
| Continuous operating temperature | -35 … +85 °C |
| Note on continuous operating temperature | Insulating parts for temperatures ≤ 105 °C |
Commercial data
| Product Group | 20 (Winsta) |
| PU (SPU) | 50 pcs |
| Packaging type | box |
| Country of origin | DE |
| GTIN | 4050821687719 |
| Customs tariff number | 85366990990 |
Product Classification
| 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 |
Environmental Product Compliance
| RoHS Compliance Status | Compliant,No Exemption |
770-1781: frequently asked questions
When can 770-1781 be shipped?
770-1781 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 770-1781 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 770-1781 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 770-1781, subject to availability and destination.
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Wago 770-1781Price and lead time confirmed within 1 business day
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