ABB - Electrification Signature Partner Distributor
ABB - Electrification CA4-01 - For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.
ABB - Electrification

CA4-01

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Specification Sheet

Contact for Pricing

Overview

The ABB CA4-01 (SKU: CA4-01) is a 1-pole normally closed (NC) auxiliary contact block designed for reliable integration with ABB AF series contactors, specifically models AF116 through AF2850. This unit is engineered for auxiliary and control circuit applications requiring dependable NC contact functionality. It features screw-type connecting terminals (M3.5) delivered in an open position for straightforward installation, while also providing protection against accidental direct contact. For optimal safety and compliance, all terminals, including unused ones, must be tightened to 1 Nm. The CA4-01 supports a connection capacity of 5 mm², with UL/CSA ratings of 1xAWG18-14 or 2xAWG18-14, and requires a 9 mm stripping length. Its robust construction offers an IP20 degree of protection at the terminals and IP67 protection on the microswitch, ensuring resilience against dust and moisture in demanding industrial settings. Installation is facilitated by compatibility with flat Ø5.5 or Pozidriv 2 screwdrivers, and its compact design allows for easy side or front clipping onto compatible contactors. Each terminal is clearly marked with its function, simplifying wiring and maintenance procedures. As part of ABB’s Motor Protection and Control portfolio, the CA4-01 adheres to IEC/EN 60947-1 standards. It is an ideal component for applications in manufacturing, automation, HVAC systems, and heavy machinery where auxiliary contacts are crucial for signaling, interlocking, and control logic, ensuring operational reliability and minimizing downtime. Manufactured in Germany (DE). UNSPSC Code: 39121522.
  • 1-pole Normally Closed (NC) auxiliary contact block
  • Screw-type connecting terminals (M3.5) with 1 Nm tightening torque
  • IP20 terminal protection and IP67 microswitch protection
  • Side or front mounting for ABB AF series contactors
  • Compliant with IEC/EN 60947-1 standards

Specifications

Application
Mainly used for controlling 3-phase motors and generally for controlling power circuits up to 690 V AC and 220 V DC. The contactors can also be used for many other applications such as bypass, capacitor switching, lighting, DC power circuits.
Connection Type
Screw Terminal
Connection Type
Screw Terminal (M3.5)
Ip Rating
IP20/IP67
Mounting Type
Side-Mount
Mounting Type
Clipping onto contactors
Mounting Type
Side Mount (Right/Left)
Poles
1
Poles
1-pole
Rated Frequency
Auxiliary Circuit 50 Hz / Auxiliary Circuit 60 Hz
Size
82x110x108mm
Special Features
The auxiliary contact blocks are used for the operation of auxiliary circuits and control circuits for standard industrial environments.Types of auxiliary contact blocks for front mounting:• CA4 1 or 4-pole block, with instantaneous N.O., N.C. contacts• CC4 1-pole block, with N.O. leading contact or N.C. lagging contact• CAT4 2-pole block, with instantaneous N.O. + N.C. contacts and A1 / A2 coil terminal connection on front face.Select the 4-pole auxiliary contact blocks CA4-..E, CA4-..M, CA4-..U or CA4-..N type, according to the contactor or contactor relay type for compliance with the standard requirements (see "Terminal marking and positioning").Types of auxiliary contact blocks for side mounting:• CAL4 2-pole block, with instantaneous N.O. + N.C. contacts.For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.
Standard
RoHs, CSA, cUL, CE, GOST
Type
Contactors
Package Dimensions (L x W x H)
3.937 IN x 3.937 IN x 0.394 IN
Package Dimensions (L x W x H)
10 cm x 10 cm x 1.0008 cm
Package Weight (Imperial)
0.031 L
Package Weight (Metric)
0.014 kg
For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.

CA4-13M

For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.
Pin Contact, Tin, 300 VAC, 26 – 22 AWG Wire Size, .12 – .4 mm² Wire Size, 254 – 642 CMA Wire Size, Crimp, Phosphor Bronze, Signal, AMPMODU MTE

5-104505-3

Pin Contact, Tin, 300 VAC, 26 – 22 AWG Wire Size, .12 – .4 mm² Wire Size, 254 – 642 CMA Wire Size, Crimp, Phosphor Bronze, Signal, AMPMODU MTE
For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.

CA4-31N

For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.
The auxiliary contact blocks are equipped with push-in spring terminals protected against accidental direct contact and bear the corresponding function marking.

CAL4-11K

The auxiliary contact blocks are equipped with push-in spring terminals protected against accidental direct contact and bear the corresponding function marking.
For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.

CA4-40N

For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.
For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.

CA4-22U

For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.
For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.

CA4-31U

For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.
For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.

CA4-04M

For clipping onto the right- and/or left-hand side of the contactors. The auxiliary contact blocks are equipped with screw type connecting terminals delivered open, protected against accidental direct contact and bear the corresponding function marking.

Frequently Asked Questions

What is the function of the ABB CA4-01 auxiliary contact block?

The ABB CA4-01 is a 1-pole normally closed (NC) auxiliary contact block used for auxiliary and control circuit applications with ABB AF series contactors.

What type of terminals does the CA4-01 use?

The CA4-01 utilizes screw-type connecting terminals (M3.5).

What is the IP rating for the ABB CA4-01?

The CA4-01 has an IP20 degree of protection on the terminals and IP67 protection on the microswitch.

What is the required tightening torque for the CA4-01 terminals?

The required tightening torque for the CA4-01 terminals is 1 Nm.

Can the CA4-01 be mounted on either side of a contactor?

Yes, the CA4-01 can be clipped onto the right- and/or left-hand side of compatible contactors.

How to Install the ABB CA4-01 Auxiliary Contact Block

Step-by-step guide for attaching the CA4-01 auxiliary contact block to ABB AF series contactors.

Estimated time: 10m

Tools needed:

Flat Ø5.5 screwdriver or Pozidriv 2 screwdriver

  1. Prepare the Contactor

    Ensure the ABB AF series contactor is de-energized and safely isolated.

  2. Align the Auxiliary Contact Block

    Align the CA4-01 auxiliary contact block with the designated mounting points on the right- or left-hand side of the AF contactor.

  3. Clip the Block into Place

    Firmly press the CA4-01 onto the contactor until it securely clips into position.

  4. Connect Wiring

    Connect the control circuit wires to the screw terminals, ensuring proper stripping length (9 mm) and tightening each terminal to 1 Nm, even if unused.

  5. Verify Installation

    Visually inspect the connection to ensure the auxiliary contact block is securely attached and wiring is correct.

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What certifications and standards do ABB - Electrification products comply with?

ABB - Electrification products comply with a comprehensive range of international certifications and standards, including UL (United States), CSA (Canada), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia & New Zealand). Our products meet critical international standards such as IEC 60947 series for low-voltage switchgear, functional safety standards EN 61800-5-2 and ISO 13849-1, and marine classification standards from Bureau Veritas, DNV, and Lloyd's Register of Shipping.

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