ABB - Electrification Signature Partner Distributor
ABB - Electrification CA4-40EK - The auxiliary contact blocks are equipped with push-in spring terminals protected against accidental direct contact and bear the corresponding function marking.
ABB - Electrification

CA4-40EK

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Specification Sheet

Contact for Pricing

Overview

The ABB CA4-40EK is a 4-pole auxiliary contact block designed for front mounting onto ABB contactors and contactor relays (AF09–AF96, AF26–AF96 with -30-00 suffix, AF09–AF80 with -40-00 and -22-00 suffixes). This block features instantaneous Normally Open (N.O.) and Normally Closed (N.C.) contacts, configured as 4 N.O. contacts (04 N.O. / 40 N.C. configuration). Engineered for standard industrial environments, it is ideal for auxiliary and control circuits in motor control centers, switchgear, and automation panels. Key specifications include push-in spring terminals for faster, tool-free wiring compared to traditional screw terminals. The terminals are protected against accidental direct contact, enhancing safety during installation and maintenance. Each terminal is clearly marked with its function, reducing wiring errors in control circuits. The CA4-40EK is part of the CA4 series, manufactured in Germany from Poly material, and weighs 0.050 kg per unit. Its clipping mechanism ensures secure attachment to compatible ABB contactor types. The push-in spring terminal connection eliminates the need for specialized tools, reducing installation time and improving reliability. This auxiliary contact block is UNSPSC-coded 39121522 and is suitable for demanding industrial applications where precise auxiliary switching functions are required. For exact compatibility, refer to ABB's "Accessory fitting details" table for your specific contactor or contactor relay type.
  • 4-pole auxiliary contact block with 4 N.O. contacts (04 N.O. / 40 N.C. configuration)
  • Push-in spring terminals for faster, tool-free wiring and enhanced reliability
  • Front-mounting design for secure attachment to ABB contactors (AF09–AF96, AF26–AF96 with -30-00 suffix, AF09–AF80 with -40-00 and -22-00 suffixes)
  • Terminals protected against accidental direct contact with clear function marking
  • Manufactured in Germany from Poly material, UNSPSC 39121522

Specifications

Connection Type
Push-in Spring Terminal
Mounting Type
Clip-On
Rated Frequency
Auxiliary Circuit 50 Hz / Auxiliary Circuit 60 Hz
Series
CA4
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..K 1 or 4-pole block, with instantaneous N.O., N.C. contactsSelect the 4-pole auxiliary contact blocks CA4-..EK, CA4-..MK or CA4-..NK 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..K 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 push-in spring terminals protected against accidental direct contact and bear the corresponding function marking.
Package Dimensions (L x W x H)
1 IN x 1 IN x 1 IN
Package Dimensions (L x W x H)
2.54 cm x 2.54 cm x 2.54 cm
Package Weight (Imperial)
0.110 L
Package Weight (Metric)
0.050 kg
The auxiliary contact blocks are equipped with push-in spring terminals protected against accidental direct contact and bear the corresponding function marking.

CA4-01K

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.

CA4-31NRT

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.

CA4-22ERT

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.

CA4-31ERT

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.

CA4-31EK

The auxiliary contact blocks are equipped with push-in spring terminals 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.

CA4-22EK

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.

CA4-11ERT

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.

CAT4-11U

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 rated operational voltage for the auxiliary circuit?

The rated operational voltage for the auxiliary circuit is 230V.

What type of terminals does this auxiliary contact block use?

This auxiliary contact block uses push-in spring terminals.

How many NO and NC auxiliary contacts are available?

There are 2 NO auxiliary contacts and 0 NC auxiliary contacts.

What is the rated frequency for the auxiliary circuit?

The rated frequency for the auxiliary circuit is 50/60 Hz.

What is the rated short-time withstand current for 1 second?

The rated short-time withstand current for 1 second is 1000A.

What is the maximum electrical switching frequency for AC?

The maximum electrical switching frequency for AC is 3600 cycles per hour.

What is the rated insulation voltage according to IEC?

The rated insulation voltage according to IEC is 690V.

What is the maximum mechanical switching frequency?

The maximum mechanical switching frequency is 3600 cycles per hour.

What is the secondary rated impulse withstand voltage?

The secondary rated impulse withstand voltage is 6 kV.

What is the degree of protection for auxiliary terminals according to IEC?

The degree of protection for auxiliary terminals according to IEC is IP20.

Frequently Asked Questions about ABB - Electrification

What industries and applications are Jokab Safety products used for?

Jokab Safety products are specifically designed for machine safety applications across multiple critical industrial sectors, including Food and Beverage, Packaging, and Material Handling industries. Their safety solutions cover a wide range of machine safeguarding needs, such as safety light guards, safety controllers, safety relays, safety edges, safety mats, and two-hand control devices that protect personnel and equipment in complex industrial automation environments.

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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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ABB - Electrification products are engineered for critical applications across multiple industries, including Energy, Oil & Gas, Manufacturing, Power Generation, HVAC, Marine, Food & Beverage, Mining, Pulp & Paper, Water Treatment, and Automotive. Their solutions cover essential electrical infrastructure needs such as switchgear, power distribution systems, circuit protection, digital control technologies, and drive systems designed for high-reliability environments with a strong focus on sustainability, efficiency, and safety.

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ABB - Electrification offers comprehensive technical support through multiple channels, including a dedicated technical support hotline at 888-385-1221 (Option 1), available 7:00 a.m. - 5:00 p.m. CST, Monday-Friday. Their support services encompass 24/7/365 emergency services, on-site support, remote monitoring and diagnostics, installation and commissioning, equipment assessments, repair coordination, and multi-vendor technical assistance. Customers can also access resources like personnel safety training, disaster recovery support, and service agreements tailored to their specific electrification needs.

What are the main product lines offered by ABB - Electrification?

ABB - Electrification offers a comprehensive range of electrical distribution and protection products, including circuit monitoring systems, panelboards, switchgear, motor control centers, circuit breakers, softstarters, and power distribution solutions. Key product lines span low and medium voltage applications across utilities, commercial, industrial, healthcare, and manufacturing sectors, with specialized offerings like the ReliaGear® panelboards, SMISSLINE TP bus systems, and Ekip UP protection and metering relays.

What are the key features of ABB - Electrification products?

ABB - Electrification products feature advanced integrated design elements that enhance industrial performance and reliability. Key features include harmonics and EMC design, integrated DC choke, removable terminals for fast installation, USB ports for troubleshooting, and integrated Safe Torque Off (STO) functionality. The products deliver superior motor control capabilities, support both induction and permanent magnet motors, and offer robust operational features like side-by-side mounting without derating and operation at temperatures up to 45°C. Additionally, ABB's Electrification solutions emphasize digital innovation, with technologies like Novolink enabling predictive maintenance, enhanced analytics, and seamless system integration.

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ABB - Electrification products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, DeviceNet, and IEC 61850. These protocols enable flexible connectivity across multiple industrial automation platforms, with support for various network topologies and high-speed data transmission up to 100 Mbps.