CA4-31U

Name: CA4-31U
Brand: ABB
SKU: CA4-31U

The ABB CA4-31U is a 4-pole front mounted auxiliary contact block equipped with screw terminals. It offers a terminal assortment matching 3-pole contactors and includes 3 N.O. and 1 N.C. instantaneous contacts for standard industrial environments.

Product ModelCA4-31U

Material Number1SBN010140R1331

Product ID86512

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ConnectionThe ABB CA4-31U features push-in spring terminals, ensuring a faster and easier installation process with a reliable connection.
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2. Industrial CompatibilityDesigned for standard industrial environments, this contact block is perfect for applications requiring high reliability and durability.
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3. Instantaneous ContactsEquipped with 3 N.O. and 1 N.C. instantaneous contacts, the CA4-31U provides efficient and precise control in various industrial settings.
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4. Easy InstallationWith the push-in spring terminals, one push is all you need for a faster-than-ever installation, making it easier than ever to wire and connect.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Product Net Width

43 mm

Product Net Depth / Length

39.5 mm

Product Net Height

43 mm

Product Net Weight

0.055 kg

Number of Auxiliary Contacts NO

Number of Auxiliary Contacts NC

5. Versatile Terminal AssortmentThe terminal assortment matches the marking of 3-pole contactors, offering flexibility and compatibility with a wide range of industrial equipment.

IEC/EN 60947-5-1, UL 60947-5-1, CSA C22.2 No. 60947-5-1-14

Rated Operational Voltage

Auxiliary Circuit 690 V

Rated Frequency (f)

Auxiliary Circuit 50 / 60 Hz

Conventional Free-air Thermal Current (Ith)

acc. to IEC 60947-5-1, Î = 40 Â°C 16 A

Rated Operational Current AC-15 (Ie)

(500 V) 2 A (690 V) 2 A (24 / 127 V) 6 A (220 / 240 V) 4 A (400 / 440 V) 3 A

Rated Short-time Withstand Current Low Voltage (Icw)

for 0.1 s 140 A for 1 s 100 A

Maximum Electrical Switching Frequency

(AC-15) 1200 cycles per hour (DC-13) 900 cycles per hour

Rated Operational Current DC-13 (Ie)

(24 V) 6 A / 144 W (48 V) 2.8 A / 134 W (72 V) 1 A / 72 W (110 V) 0.55 A / 60 W (125 V) 0.55 A / 69 W (220 V) 0.27 A / 60 W (250 V) 0.27 A / 68 W (400 V) 0.15 A / 60 W (500 V) 0.13 A / 65 W (600 V) 0.1 A / 60 W

Rated Insulation Voltage (Ui)

acc. to IEC 60947-5-1 690 V acc. to UL/CSA 600 V

Rated Impulse Withstand Voltage (Uimp)

6 kV

Maximum Mechanical Switching Frequency

3600 cycles per hour

Connecting Capacity Auxiliary Circuit

Flexible with Ferrule 1/2x 0.75 ... 2.5 mmÂ² Flexible with Insulated Ferrule 2x 0.75 ... 1.5 mmÂ² Flexible with Insulated Ferrule 1x 0.75 ... 2.5 mmÂ² Rigid Solid 1/2x 1 ... 2.5 mmÂ² Rigid Stranded 1/2x 1 ... 2.5 mmÂ²

Wire Stripping Length

Auxiliary Circuit 10 mm

Degree of Protection

acc. to IEC 60529, IEC 60947-1, EN 60529 Auxiliary Terminals IP20

Terminal Type

Screw Terminals

Suitable For

AF09 AF09Z AF12 AF12Z AF16 AF16Z AFC09 AFC12 AFC16 AF09B AF09ZB AF12B AF12ZB AF16B AF16ZB

Connecting Capacity Auxiliary Circuit UL/CSA

Rigid Solid 1/2x 18-14 AWG Rigid Stranded 1/2x 18-14 AWG

Tightening Torque UL/CSA

Auxiliary Circuit 11 inÂ·lb

Object Classification Code

ETIM 7

EC000041 - Auxiliary contact block

ETIM 8

EC000041 - Auxiliary contact block

ETIM 9

EC000041 - Auxiliary contact block

eClass

V11.0 : 27371302

UNSPSC

39121522

IDEA Granular Category Code (IGCC)

4743 >> Auxiliary contact block

E-Number (Finland)

3706520

E-Number (Sweden)

3211426

Manufacturer ID

1SBN010140R1331