CAT4-11M

Name: ABB CAT4-11M Auxiliary Contact Block for side mounting on AF116-AF2850 contactors, 1 NO + 1 NC, screw terminals, IP20/IP67.
Brand: ABB - Electrification
SKU: CAT4-11M
Availability: InStock

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Specification Sheet

Contact for Pricing

Overview

The ABB Electrification CAT4-11M Auxiliary Contact Block (SKU: CAT4-11M) is a side-mounting accessory designed for AF116 to AF2850 contactors, enabling expanded control and monitoring in industrial systems. This 1-pole block features one normally open (N.O.) and one normally closed (N.C.) instantaneous contact, delivered with screw-type terminals in an open position for simplified wiring. The terminals are rated for 5 mm² (UL/CSA: 2 x AWG 18–14) with a 9 mm stripping length and 1 Nm tightening torque. All terminals are M3.5, compatible with flat (Ø 5.5 mm) or Pozidriv 2 screwdrivers. The CAT4-11M provides IP20 protection per IEC/EN 60947-1 and IEC/EN 60529 for terminal blocks, with IP67 protection on the microswitch for severe industrial environments. Each terminal is clearly marked with its function, streamlining installation and maintenance. The auxiliary contact block clips securely onto the right- and/or left-hand side of compatible contactors, eliminating the need for complex modifications. Engineered for motor protection, automation panels, and power distribution units, the CAT4-11M supports additional signaling, interlocking, or monitoring circuits. Its robust construction ensures reliable operation in harsh conditions, while the open-terminal delivery allows for flexible wiring configurations. Manufactured in Germany and distributed by ABB Electrification, this accessory guarantees compatibility with existing ABB contactor assemblies and adherence to industrial standards. Key applications include motor control systems, automation panels, and power distribution units where auxiliary contacts are required for monitoring, interlocking, or signaling. The CAT4-11M is ideal for severe industrial environments, offering reliable operation and easy integration into existing control circuits.

1-pole auxiliary contact block with 1 NO + 1 NC instantaneous contacts
Screw terminals rated for 5 mm² (UL/CSA: 2 x AWG 18–14), 9 mm stripping length, 1 Nm torque
IP20 protection for terminals, IP67 protection for microswitch (severe industrial environments)
Side-mounting design clips onto right/left side of AF116 to AF2850 contactors
M3.5 terminals compatible with flat (Ø 5.5 mm) or Pozidriv 2 screwdrivers

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	Clip-On
Rated Frequency	Auxiliary Circuit 50 Hz / Auxiliary Circuit 60 Hz
Series	CAT4
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)	0.110 L
Package Weight (Metric)	0.050 kg

CA4-11MRT

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.

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.