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Artikelnummer 770-704

Snap-in socket; 4-pole; Cod. A; 4,00 mm²; black

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  • Protected against mismating and maintenance-free
  • Push-in CAGE CLAMP® spring pressure connection technology allows solid conductors to be simply pushed into a unit
  • Two-wire connection per pole for loops or bridges
  • Additional variable coding is possible

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).
Note on mismating protection:
All WINSTA® components are 100% protected against mismating when:
a.) plugging different numbers of poles
b.) plugging while rotated 180 

c.) plugging while laterally staggered
d.) plugging one pole

Safety information 1:
Application note for the U.S. market (USR): 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.


Electrical data
Note on Contact Resistance approx. 1 mΩ of contact resistance
 approx. 0.25 mΩ contact transition plug/socket
Ratings per IEC/EN 60664-1
Ratings per IEC/EN 60664-1
Nominal voltage (III/3) 400 V
Rated surge voltage (III/3) 6 kV
Rated current 25 A
Legend (ratings) (III / 3) ≙ Overvoltage category III / Pollution degree 3
Approvals per UL 1977
Rated voltage UL 1977 600 V
Rated current UL 1977 23 A
Connection data
Connection technology Push-in CAGE CLAMP®
Actuation type Operating tool
Nominal cross-section 4 mm²
Solid conductor 0.5 … 4 mm² / 20 … 12 AWG
Solid conductor; push-in termination 1.5 … 4 mm² / 16 … 12 AWG
Stranded conductor 0.5 … 2.5 mm² / 20 … 14 AWG
Fine-stranded conductor 0.5 … 4 mm² / 20 … 12 AWG
Fine-stranded conductor; with insulated ferrule 0.25 … 1.5 mm² / 20 … 16 AWG
Fine-stranded conductor; with uninsulated ferrule 0.25 … 2.5 mm² / 20 … 14 AWG
Fine-stranded conductor; with ferrule; push-in termination 1.5 mm² / 16 AWG
Strip length 9 mm / 0.35 inch
Note (strip length) see also packaging or instructions
Pole No. 4
Total number of connection points 8
Total number of potentials 4
Conductor entry direction to mating direction 0 °
Geometrical Data
Pin spacing 10 mm / 0.394 inch
Width 45.5 mm / 1.791 inch
Height 18.5 mm / 0.728 inch
Depth 36 mm / 1.417 inch
Mechanical data
Coding A
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

100, with resistive load IN = 25 A, tested (4 mm²/AWG 12)

Housing sheet thickness 0.5 … 2 mm / 0.02 … 0.079 inch
Mounting type Snap-in
Marking N ⏚ 2/L 1/L'
Protection type IP20
Note on protection type Only when mated (these compact connectors are not designed for use in open, easily accessible areas).
Potential marking N ⏚ 2/L 1/L'
Application General mains applications
Plug connection
Contact type (pluggable connector) Female connector/socket
Connector (connection type) for conductor
Mismating protection Yes
Locking of plug-in connection locking lever
Locking lever yes
Material Data
Color black
Insulation material Polyamide 66 (PA66)
Clamping spring material Chrome nickel spring steel (CrNi)
Contact material Copper or copper alloy (surface-treated)
Fire load 0,198 MJ
Weight 15,7 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)
Packaging type BOX
Country of origin DE
GTIN 4044918252584
Customs tariff number 85366990990
Vergunningen / certificaten
Country specific Approvals
Vergunning: CCA
DEKRA Certification B.V.
Norm EN 61535
Certificaatsnaam: 2173495.02
Vergunning: CCA
DEKRA Certification B.V.
Norm IEC 61535
Certificaatsnaam: NL-32105
Ship Approvals
Vergunning: ABS
American Bureau of Shipping
Norm -
Certificaatsnaam: 19-HG1868589-PDA
Vergunning: DNV GL
Det Norske Veritas, Germanischer Lloyd
Norm -
Certificaatsnaam: TAE00001Z6
Vergunning: LR
Lloyds Register
Norm IEC 61984
Certificaatsnaam: 02/20050 (E6)
Vergunning: cURus
Underwriters Laboratories Inc.
Norm UL 1977
Certificaatsnaam: E45171 Sec. 9
CAD data
2D/3D Models 770-704
CAE data
EPLAN Data Portal 770-704
WSCAD Universe 770-704
ZUKEN Portal 770-704
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4 Images
Conductor termination

1. Strip length, outer insulation = 35 mm (2-pole), 55 mm (3- to 5-pole)

2. Strip length = 9 mm

3. Extended ground conductor = 8 mm

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1 Image
Conductor removal

To remove the conductor, actuate the clamp via screwdriver (2.5 mm blade width) and pull out the conductor.​

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1 Image

Seal unused cutout with lockout cap.

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