Socket for PCBs; straight; 4-pole; Cod. B; gray
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Quick facts
| Availability | Confirmed on request |
| Category | Pluggable Connectors |
| Lifecycle | active |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
When can 770-844 be shipped?
770-844 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 770-844 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 770-844 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 770-844, subject to availability and destination.
<h2>Female connector/socket <i>WINSTA</i>® MIDI with protection against mismating</h2><br/><br/>The <i>WINSTA</i>® MIDI female connector/socket B coding saves money and space thanks to its compact dimensions. Our remarkable number of pluggable PCB connectors with various insertion directions and operating variants offers you the right solution for your application at all times. The mechanical coding and color coding of the pcb connectors ensure error-free installation of the individual components – including protection against mismating. Solutions like the <i>WINSTA</i>® MIDI pcb connectors with B coding are suitable for applications related to process control, such as for lighting or in data networks. This pcb connectors is used for electrical currents up to 25 A. Thus the product is ideally suitable for high power loads. Our <i>WINSTA</i>® MIDI product line guarantees flexibility for the installation of applications. Through its Push-in CAGE CLAMP® spring pressure connection technology, it ensures error-free, time-saving installation and offers customization for meeting various installation requirements.<br/><br/><h3><i>WINSTA</i>® MIDI solutions for your electrical installation – protected against mismating and maintenance-free</h3><br/><br/>WINSTA® is the pluggable connection system that is perfectly tailored to the strict requirements of electrical installation. It offers fast, secure and, above all, error-free installation of components and cables. Choose durability and quality – with protection against mismating from WAGO makes the electrical installation of electrical components substantially easier. <br/><br/><ul><br/><li>effective protection against mismating</li><li>simple circuits</li><li>with B coding for use in process automation, such as lighting technology, among other examples</li><li>quick replacement of defective units during ongoing operation</li></ul>
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 | 37 mm / 1.457 inches |
| Height | 29.5 mm / 1.161 inches |
| Height from the surface | 26 mm / 1.024 inches |
| Depth | 14.6 mm / 0.575 inches |
| Solder pin length | 3.5 mm |
| Solder pin dimensions | 1 x 0.8 mm |
| Drilled hole diameter with tolerance | 1.5 (-0.1 … +0.1) mm |
Mechanical data
| Use | Control technology |
| Coding | B |
| Variable coding | Yes |
| 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 | 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 |
| Design | straight |
Plug-in connection
| Contact type (pluggable connector) | Female connector/socket |
| Connector (connection type) | for PCB |
| 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 |
| Mating direction to the PCB | 90 ° |
| 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). |
PCB contact
| PCB contact | THT |
| Solder pin arrangement | 2 in-line solder pins/pole |
| Number of solder pins per potential | 2 |
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 |
| Clamping spring material | Chrome-nickel spring steel (CrNi) |
| Contact material | Copper or copper alloy; surface-treated |
| Contact plating | Tin |
| Fire load | 0.164 MJ |
| Weight | 8.5 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 | PL |
| GTIN | 4017332802451 |
| Customs tariff number | 85366990990 |
Product Classification
| UNSPSC | 39121409 |
| eCl@ss 10.0 | 27-44-06-05 |
| eCl@ss 9.0 | 27-44-06-05 |
| ETIM 9.0 | EC002637 |
| ETIM 10.0 | EC002637 |
| ECCN | NO US CLASSIFICATION |
Environmental Product Compliance
| RoHS Compliance Status | Compliant,No Exemption |






