ABB - Electrification CAT4-11ERT - 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.
ABB - Electrification

CAT4-11ERT

Contact for Pricing

Overview

The ABB CAT4-11ERT auxiliary contact block is a side-mounting accessory designed for ABB EK550 and EK1000 4-pole contactors, providing essential control and signaling capabilities in industrial motor control systems. This block features one normally open (N.O.) and one normally closed (N.C.) instantaneous contact, enabling flexible auxiliary circuit operation for monitoring, interlocking, and status indication in automation and machinery applications. Engineered for compatibility with ABB’s EK550 and EK1000 contactors, the CAT4-11ERT can be mounted on either the right-hand or left-hand side of the contactor, or both for expanded functionality. The block is delivered with screw-type connecting terminals in an open position for simplified wiring, while integrated protection prevents accidental direct contact, enhancing operator safety during installation and maintenance. Key specifications include M3.5 terminals supporting a connection capacity of up to 5 mm², with a recommended tightening torque of 1 Nm for secure and reliable electrical connections. The block meets IP20 protection degree per IEC/EN 60947-1 and IEC/EN 60529, making it suitable for standard industrial environments, including motor control centers, automation systems, and industrial machinery. For DC-operated EK contactors, the CAT4-11ERT is often pre-installed on the right side, reducing setup time and streamlining integration into existing systems. Each terminal is clearly marked with its function for easy identification and maintenance, ensuring long-term reliability and operational clarity in complex electrical infrastructures. Manufacturer: ABB - Electrification | SKU: CAT4-11ERT | UNSPSC Code: 39121522 | Country of Origin: DE
  • Side-mount auxiliary contact block for ABB EK550 and EK1000 4-pole contactors
  • Features 1 normally open (N.O.) and 1 normally closed (N.C.) instantaneous contacts
  • Screw-type terminals with M3.5 size, supporting up to 5 mm² wire size
  • IP20 protection degree per IEC/EN 60947-1 and IEC/EN 60529
  • Mountable on right-hand, left-hand, or both sides of compatible contactors

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.
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)
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)
0.100 L
Package Weight (Metric)
0.045 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.

Frequently Asked Questions

What type of contacts does the ABB CAT4-11ERT have?

The ABB CAT4-11ERT auxiliary contact block features one normally open (N.O.) and one normally closed (N.C.) instantaneous contact.

Where can the CAT4-11ERT auxiliary contact block be mounted?

The CAT4-11ERT is designed for side mounting, clipping onto the right- and/or left-hand side of ABB EK550 and EK1000 contactors.

What is the connection type for the CAT4-11ERT?

The CAT4-11ERT utilizes screw-type connecting terminals with M3.5 size.

What is the degree of protection for the CAT4-11ERT?

The CAT4-11ERT has a degree of protection of IP20 according to IEC/EN 60947-1 and IEC/EN 60529.

What is the required tightening torque for the CAT4-11ERT terminals?

The required tightening torque for the CAT4-11ERT terminals is 1 Nm.

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.

What are the key features of Jokab Safety products?

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.

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.