Wago 781-637 Data Sheet

Data sheet | Item number:781-637

3-conductor ground terminal block; 4 mm²; center marking; for DIN-rail 35 x
15 and 35 x 7.5; CAGE CLAMP®; 4,00 mm2; green-yellow

Color:

Item description

Note:
Terminating Aluminum Conductors

WAGO spring clamp terminal blocks are suitable for solid aluminum conductors up to 4mm²/12AWG if WAGO “Alu-Plus” Contact Paste is used for
termination.

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Data sheet | Item number:781-637

“Alu-Plus” Contact Paste Advantages:

Automatically destroys the oxide film during clamping.

Prevents fresh oxidation at the clamping point.

Prevents electrolytic corrosion between aluminum and copper conductors (in the same terminal block).

Provides long-term protection against corrosion.

Using terminal blocks with CAGE CLAMP® Spring Pressure Connection Technology, and aluminum conductors must first be cleaned with a blade
then immediately be inserted into the clamping units filled with “Alu-Plus” Contact Paste.

It is also possible to apply WAGO “Alu-Plus” on the whole surface of the aluminum conductor before termination.additionally

Please note that the nominal currents must be adapted to the reduced conductivity of the aluminum conductors:

2.5mm² (14 AWG) = 16 A
4mm² (12 AWG) = 22 A

Data

Connection data

Connection technology

CAGE CLAMP

®

Actuation type Open Tool Slot

Connectable conductor materials Copper

Aluminum

Solid conductor 0.08 4mm²/ 28 12AWG

Fine-stranded conductor 0.08 4mm²/ 28 12AWG

Strip length 9 10mm/ 0.35 0.39inch

Total number of connection points 3

Total number of potentials 1

Number of levels 1

Type of wiring Front-entry wiring

Geometrical Data

Width 6mm/ 0.236inch

Height from upper-edge of DIN-35 rail 43.5mm/ 1.713inch

Depth 77mm/ 3.031inch

Mechanical data

Design angled

Type of mounting DIN-35 rail

Marking level Center marking

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Data sheet | Item number:781-637

Material Data

Color green-yellow

Insulating material Polyamide 66 (PA 66)

Fire load 0.196 MJ

Weight 18.07g

Commercial data

Country of origin DE

GTIN 4045454084714

Customs Tariff No. 85369010000

Approvals / Certificates

Radio-Approvals

Logo Approval Additional Approval Text

Certificate
name

CCA

DEKRA Certification B.V.

EN 60947 NTR NL-

7454/A1

CSA

DEKRA Certification B.V.

C22.2 No. 158 1833819

Country specific Approvals

Logo Approval Additional Approval Text

Certificate
name

ABS

American Bureau of Shipping

- 14­HG1293677­PDA

BV

Bureau Veritas S.A.

EN 60947 07436/E0

BV

CCA

DEKRA Certification B.V.

EN 60947 NTR NL-

7454/A1

CSA

DEKRA Certification B.V.

C22.2 No. 158 1833819

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Data sheet | Item number:781-637

LR

Lloyds Register

EN 60947 91/20112

(E9)

Ship Approvals

Logo Approval Additional Approval Text

Certificate
name

ABS

American Bureau of Shipping

- 14-

HG1293677­PDA

BV

Bureau Veritas S.A.

EN 60947 07436/E0 BV

DNV GL

Det Norske Veritas, Germanischer Lloyd

- TAE00001V2

LR

Lloyds Register

EN 60947 91/20112

(E9)

Other Approvals

Logo Approval Additional Approval Text

Certificate
name

UR

Underwriters Laboratories Inc.

UL 1059 E45172

UL-Approvals

Logo Approval Additional Approval Text

Certificate
name

UR

Underwriters Laboratories Inc.

UL 1059 20190731-

E45172

Compatible products

781-637

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