ABB - Electrification Signature Partner Distributor
ABB - Electrification CA4-31EK - The auxiliary contact blocks are equipped with push-in spring terminals protected against accidental direct contact and bear the corresponding function marking.
ABB - Electrification

CA4-31EK

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Specification Sheet

Contact for Pricing

Overview

The ABB CA4-31EK auxiliary contact block is a 4-pole front-mounting unit designed for reliable operation in auxiliary and control circuits within standard industrial environments. Engineered for compatibility with ABB AF09 to AF96 contactors and NF contactor relays, this block features instantaneous Normally Open (N.O.) and Normally Closed (N.C.) contacts, ensuring precise signal routing and control functionality. Key to its performance is the push-in spring terminal technology, which eliminates the need for specialized tools while providing secure, tool-free connections. This design significantly reduces installation and maintenance time, making it ideal for both new installations and retrofit applications. The terminals are protected against accidental direct contact, enhancing workplace safety for electricians and maintenance personnel. The CA4-31EK supports a wide range of conductor sizes, accommodating flexible wires with or without ferrules (0.5 mm² to 2.5 mm² for single connections, up to 1.5 mm² for double connections with insulated ferrules). It also meets UL/CSA standards for 1 or 2 x AWG 18-14 conductors. A 10 mm stripping length is required for proper installation. The block provides an IP20 degree of protection per IEC/EN 60947-1 and IEC/EN 60529, ensuring basic protection against solid foreign objects. Manufactured in Germany under ABB’s Electrification division, the CA4-31EK is a precision-engineered component for industrial control systems, offering durability, reliability, and compliance with international standards. Its compact design and front-mounting capability make it a versatile choice for integration with ABB contactors and relays in motor protection and control applications.
  • 4-pole front-mounting auxiliary contact block with instantaneous N.O. and N.C. contacts
  • Push-in spring terminals for tool-free, secure connections (0.5 mm² to 2.5 mm²)
  • Compatible with ABB AF09 to AF96 contactors and NF contactor relays
  • IP20 protection per IEC/EN 60947-1 and IEC/EN 60529
  • Manufactured in Germany under ABB Electrification standards

Specifications

Connection Type
Push-in Spring Terminal
IP Rating
IP20
Material
Poly
Mounting Type
Front-mounting
Poles
4P
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
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.

CA4-22M

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 TE Connectivity industrial connector (SKU 1827570-4) is engineered for high-performance applications requiring durability and reliability. Designed to meet rigorous industry standards, this connector ensures secure and efficient connectivity in harsh environments. Its robust construction and advanced materials provide exceptional resistance to vibration, temperature fluctuations, and environmental contaminants. Ideal for industrial automation, telecommunications, and transportation systems, this connector supports seamless integration and long-term operational efficiency. Trust TE Connectivity for superior connectivity solutions that enhance system performance and reduce downtime.

1827570-4

The TE Connectivity industrial connector (SKU 1827570-4) is engineered for high-performance applications requiring durability and reliability. Designed to meet rigorous industry standards, this connector ensures secure and efficient connectivity in harsh environments. Its robust construction and advanced materials provide exceptional resistance to vibration, temperature fluctuations, and environmental contaminants. Ideal for industrial automation, telecommunications, and transportation systems, this connector supports seamless integration and long-term operational efficiency. Trust TE Connectivity for superior connectivity solutions that enhance system performance and reduce downtime.
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.
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.

CA4-31MRT

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.

CA4-10K

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.

CAT4-11MRT

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

How many NO and NC auxiliary contacts does the CA4-31EK have?

The CA4-31EK has 2 NO (Normally Open) auxiliary contacts and 0 NC (Normally Closed) auxiliary contacts.

What is the rated operational voltage for the auxiliary circuit of the CA4-31EK?

The rated operational voltage for the auxiliary circuit is 250V.

What is the conventional free air thermal current for the CA4-31EK?

The conventional free air thermal current for the CA4-31EK is 10A.

What is the rated operational current for the CA4-31EK at 24V AC?

The rated operational current for the CA4-31EK at 24V AC is 6A.

What is the rated frequency for the auxiliary circuit of the CA4-31EK?

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

What is the maximum electrical switching frequency for the CA4-31EK?

The maximum electrical switching frequency is 3600 cycles per hour for AC and 1800 cycles per hour for DC.

What is the rated insulation voltage for the CA4-31EK?

The rated insulation voltage is 500V according to IEC and VDE.

What is the maximum mechanical switching frequency for the CA4-31EK?

The maximum mechanical switching frequency is 3600 cycles per hour.

What is the secondary rated impulse withstand voltage for the CA4-31EK?

The secondary rated impulse withstand voltage is 4kV.

What is the degree of protection for the auxiliary terminals of the CA4-31EK?

The degree of protection for the auxiliary terminals 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.

What technical support does Jokab Safety offer?

Jokab Safety offers comprehensive technical support through multiple channels, including a dedicated technical support phone line at (888) 385-1221 (Option 1) and email support at [email protected]. For advanced technical assistance, customers can contact their specialized Jokab Tech Support at (519) 982-0976 or email [email protected]. Additionally, they provide product specialist support through Jeff Leslie, who can be reached at (519) 982-0976, offering in-depth application and technical guidance.

What are the main product lines offered by Jokab Safety?

Jokab Safety offers a comprehensive range of machine safety products including safety light guards (Orion), safety controllers (Pluto), safety relays (Sentry), safety edges, safety contact mats, safety locks (Gkey), and safety sensors with OSSD and DYNlink interfaces. Their product lines are specifically designed for industrial applications in food and beverage, packaging, and material handling industries, providing robust safety solutions for machine guarding and personnel protection.

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Jokab Safety products offer comprehensive industrial safety solutions with key features including: highest safety certification levels (up to PL e/Cat 4), extensive fault detection, multiple safety device types (optical safety devices, pressure sensitive devices, sensors, switches, locks, emergency stops), and innovative DYNlink technology that reduces cable requirements and simplifies installation. Their products are certified, verified, and compatible with major industrial automation systems like B&R, featuring easy M12 connector connections and a wide range of adapters to streamline safety implementation.

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.

What technical support does ABB - Electrification offer?

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.

What communication protocols do ABB - Electrification products support?

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.