ABB - Electrification 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.
ABB - Electrification

CA4-31U

Contact for Pricing

Overview

The ABB CA4-31U auxiliary contact block (SKU: CA4-31U) is a high-performance, side-mounting accessory designed for ABB AF116 to AF2850 contactors in severe industrial environments. Engineered for reliability and durability, this 1-pole auxiliary contact block features built-in microswitches with instantaneous N.O. (normally open) or N.C. (normally closed) contacts, ensuring precise control of auxiliary and control circuits. The CA4-31U is ideal for applications requiring robust performance under harsh conditions, including motor protection, control panels, and automation systems. Key specifications include M3.5 screw terminals with a connection capacity of 5 mm² (or 2 x AWG 18-14), delivering open and protected against accidental contact. The stripping length is 9 mm, with a tightening torque of 1 Nm for secure connections. The degree of protection is IP20 on terminals and IP67 on the block itself, meeting IEC/EN 60947-1 and IEC/EN 60529 standards. Screw terminals are delivered in an open position, with unused terminals requiring tightening to maintain safety and functionality. The CA4-31U is designed for seamless integration with ABB AF116 to AF370 and AF400 to AF2850 contactors, offering flexibility for right- and left-hand side mounting. The built-in function marking ensures easy identification and installation, reducing downtime and enhancing operational efficiency. With a compact design and lightweight construction (0.040 kg for AF116-AF370 and 0.050 kg for AF400-AF2850), the CA4-31U is a space-saving solution for industrial control systems. Manufactured by ABB - Electrification, a global leader in electrification and automation technologies, the CA4-31U auxiliary contact block is distributed by Gross Automation, providing expert support and service. For technical assistance or ordering, contact Gross Automation at +1 (262) 252-1600 or [email protected]. Trust ABB for uncompromising quality and performance in industrial control solutions.
  • Side-mounting auxiliary contact block for ABB AF116 to AF2850 contactors
  • 1-pole block with built-in microswitch (instantaneous N.O. or N.C. contact)
  • IP20/IP67 protection (IP20 on terminals, IP67 on block)
  • M3.5 screw terminals with 5 mm² connection capacity (2 x AWG 18-14)
  • Stripping length 9 mm, tightening torque 1 Nm, delivered open with unused terminals to be tightened

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
Mounting Type
Clipping onto contactors
Rated Frequency
Auxiliary Circuit 50 Hz / Auxiliary Circuit 60 Hz
Series
CA4
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)
1.811 IN x 1.811 IN x 1.811 IN
Package Dimensions (L x W x H)
4.5999 cm x 4.5999 cm x 4.5999 cm
Package Weight (Imperial)
0.121 L
Package Weight (Metric)
0.055 kg

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Frequently Asked Questions about ABB - Electrification

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.

What industries and applications are ABB - Electrification products used for?

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.

What environmental ratings do ABB - Electrification products have?

ABB - Electrification products feature robust environmental ratings across multiple standards, including IP54 to IP66 protection levels and NEMA Type 1 to Type 4X enclosures. These ratings ensure equipment can withstand challenging industrial environments, providing dust-tight, water-resistant, and corrosion-resistant protection for indoor and outdoor applications.

What accessories are available for ABB - Electrification products?

ABB - Electrification offers a comprehensive range of accessories across multiple product lines, including auxiliary contact blocks, signaling contacts, shunt trips, undervoltage releases, electronic timers, interlocks, interface relays, mounting pieces, terminal blocks, and connection accessories. These accessories are designed to enhance functionality, improve connectivity, and provide additional protection for industrial control systems, with many accessories being compatible with SMISSLINE TP plug-in distribution systems and Unifix AD busbar systems.

How are ABB - Electrification products typically installed?

ABB - Electrification products are installed through a professional, systematic process that includes precise equipment verification, secure electrical connections, and comprehensive testing. Installation typically involves verifying foundation requirements, assembling equipment, connecting busbars and control cables, establishing earthing systems, and conducting thorough pre-commissioning and commissioning tests to ensure optimal performance, reliability, and safety.

What is ABB - Electrification's warranty policy?

ABB - Electrification offers a standard 1-year factory warranty for most electrification products, with options to extend warranty coverage up to 5 years for specific product lines like low voltage circuit breakers. Extended warranty requires online registration through ABB's Extended Warranty Tool, which verifies the product application and provides additional coverage for manufacturing defects and factory-mounted accessories.