ABB CA4-11ERT Auxiliary Contact Block - IEC 60947-5-1
Part Number: 1SBN010155R1011
Quick Summary
ABB CA4-11ERT Auxiliary Contact Block is a compact front-mounted device that adds one normally open and one normally closed auxiliary contact to a two-pole contactor for robust control signaling in industrial panels. Wiring complexity and loose connections often cause signal misreadings and maintenance headaches in tight installations; this unit's screw terminals and conic washer ensure fast, secure tightening of cables. Certified to IEC/EN 60947-5-1, UL 508, and CSA C22.2 No. 14-10, it supports compliance across global markets. Compatible with AF09..38(Z)B-30-00RT markings and other AF accessories, it helps engineers meet safety, reliability, and lifecycle requirements while simplifying procurement of compatible signaling blocks. This block also provides reliable 690 V auxiliary signaling with a compact footprint suitable for modern control panels and automation schemes.
Product Information
Extended Description
1SBN010155R1011 ABB: CA4-11ERT is a 2-pole front mounted auxiliary contact block equipped with screw terminals for connection with ring tongue ferrules. CA4-..E version offers terminal assortment matching the marking of 3-pole AF26..38(Z)B-30-00RT, 4-pole AF09..38(Z)B-40-00RT or AF09..38(Z)B-22-00RT contactors. CA4-11ERT is available with 1 N.O. and 1 N.C. instantaneous contacts for standard industrial environments. Screw terminals for connection with ring tongue ferrules, includes non-detachable screw with conic washer for a fast and secure tightening of cables.
Minimum Order Quantity
1 piece
Customs Tariff Number
85389099
Data Sheet, Technical Information
Motor control and protection for Rolling stock application_PDF
Instructions and Manuals
Installation instructions AF09...38(Z)B-..RT Contactors, NF(Z)B..ERT Contactor relays and CA4..RT, CAL4..RT, CAT4..RT, LDC4RT Accessories
Instructions and Manuals (Part 2)
Contactors and Overload relays guide
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
Product Net Width
45 mm
Product Net Depth / Length
39.8 mm
Product Net Height
43 mm
Product Net Weight
0.04 kg
Number of Auxiliary Contacts NO
1
Number of Auxiliary Contacts NC
1
Number of Poles
2P
Standards
IEC/EN 60947-5-1, UL 508, CSA C22.2 No. 14-10
Rated Operational Voltage
Auxiliary Circuit 690 V
Rated Frequency (f)
Auxiliary Circuit 50 / 60 Hz
Conventional Free-air Thermal Current (Ith)
acc. to IEC 60947-5-1, Θ = 40 °C 16 A
Rated Operational Current AC-15 (Ie)
(500 V) 2 A | (690 V) 2 A | (24 / 127 V) 6 A | (220 / 240 V) 4 A | (400 / 440 V) 3 A
Rated Operational Current DC-13 (Ie)
(24 V) 6 A / 144 W | (48 V) 2.8 A / 134 W | (72 V) 1 A / 72 W | (110 V) 0.55 A / 60 W | (125 V) 0.55 A / 69 W | (220 V) 0.27 A / 60 W | (250 V) 0.27 A / 68 W | (400 V) 0.15 A / 60 W | (500 V) 0.13 A / 65 W | (600 V) 0.1 A / 60 W
Rated Short-time Withstand Current Low Voltage (Icw)
for 0.1 s 140 A | for 1 s 100 A
Rated Insulation Voltage (Ui)
acc. to IEC 60947-5-1 690 V | acc. to UL/CSA 600 V
Rated Impulse Withstand Voltage (Uimp)
6 kV
Maximum Electrical Switching Frequency
(AC-15) 1200 cycles per hour | (DC-13) 900 cycles per hour
Maximum Mechanical Switching Frequency
3600 cycles per hour
Degree of Protection
acc. to IEC 60529, IEC 60947-1, EN 60529 Auxiliary Terminals IP20
Tightening Torque
Auxiliary Circuit 1.2 N·m
Terminal Type
Ring-Tongue Terminals
Suitable For
AF09B | AF09ZB | AF12B | AF12ZB | AF16B | AF16ZB | AF26B | AF26ZB | AF30B | AF30ZB | AF38B | AF38ZB
Product Name
Auxiliary Contact Block
Tightening Torque UL/CSA
Auxiliary Circuit 11 in·lb
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
REACH Declaration
REACH - Letter of Confirmation for block contactors, contactor relays, installation contactors, mini contactors, mini contactor relays, thermal overload relays, electronic overload relays and related accessories
RoHS Information
RoHS II declaration for block contactors, installation contactors, mini contactors, mini contactor relays, thermal overload relays, electronic overload relays and related accessories
RoHS Status
Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019
WEEE B2C / B2B
Business To Business
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
CB Certificate
CB Certificate CA4 4-pole and CAT4 auxiliary contact blocks for AF09...AF96 contactors and NF contactor relays
CCC Certificate
CCC Certificate CA4 4-pole, CAT4-11, VE4 AF accessories with screw, Ring tongue, spring and push-in terminals
Declaration of Conformity - CCC
CCC Declaration of Conformity, Auxiliary contacts, CAL4-**, CA4-**, CC4-**, Made in Czech Republic | CCC Declaration of Conformity, Auxiliary contacts, CA4-***,CAT4-*** ,VE4, Made in Poland
Declaration of Conformity - CE
EU Declaration of Conformity CA(L)(T)4.., CC4, CA(L)(T)4..RT, CA(L)4..K, CA(L)(T)4..S auxiliary contact blocks, VM4, VM96-4, VEM4(K) interlocks
Declaration of Conformity - UKCA
UK Declaration of Conformity CA(L)(T)4.., CC4, CA(L)(T)4..RT, CA(L)4..K, CA(L)(T)4..S auxiliary contacts, VM4, VM96-4, VEM4(K) interlocks
UR Certificate
UR Certificate of Compliance 2 or 4-pole CA4..RT, CAL4..RT, CAT4..RT for AF09..38(Z)B..RT contactors / NF(Z)B..RT contactor relays
Package Level 1 Units
box 1 piece
Package Level 1 Width
46 mm
Package Level 1 Depth / Length
46 mm
Package Level 1 Height
46 mm
Package Level 1 Gross Weight
0.04 kg
Package Level 1 EAN
3471523130555
Package Level 2 Units
box 0 piece
Package Level 2 Width
0 mm
Package Level 2 Depth / Length
0 mm
Package Level 2 Height
0 mm
Package Level 3 Units
0 piece
Object Classification Code
K
ETIM 7
EC000041 - Auxiliary contact block
ETIM 8
EC000041 - Auxiliary contact block
ETIM 9
EC000041 - Auxiliary contact block
eClass
V11.0 : 27371302
UNSPSC
39121522
IDEA Granular Category Code (IGCC)
4743 >> Auxiliary contact block
The CA4-11ERT offers front-mounted 2P signaling with 1 normally open and 1 normally closed contact, delivering immediate status feedback for motor starters and contactors. This translates to clearer interlocks, faster fault detection, and reduced downtime in control circuits. Screw terminals for ring tongue ferrules, paired with a conic washer, allow secure, high-integrity terminations and consistent torque (1.2 N·m), which lowers maintenance intervals and improves long-term reliability in vibration-prone environments. Compatibility with AF-series contactors (AF09..38(Z)B-30-00RT and related AF accessories) simplifies selection, stocking, and field installation, helping projects stay on schedule while ensuring dependable signaling across devices rated up to 690 V auxiliary circuits. Electrical ratings support versatile applications: AC-15 up to 2 A at 500–690 V and DC-13 up to 6 A at 24 V, enabling use across control circuits, timers, and logic interlocks with predictable behavior. Compliance and safety are reinforced by IEC/EN 60947-5-1, UL 508, and CSA C22.2 No. 14-10 certifications, plus RoHS and REACH declarations, ensuring regulatory alignment for global deployments. The compact dimensions (45 mm width, 39.8 mm depth, 43 mm height) and light 0.04 kg weight make installation straightforward in crowded panels, reducing panel width requirements while preserving wiring clarity.
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FAQs
The CA4-11ERT is a front-mounted 2P auxiliary block featuring 1 normally open and 1 normally closed contact. Install it on compatible AF contactors (AF09..38 series) using the supplied ring tongue terminals. Tighten auxiliary terminals to 1.2 N·m and verify robust cable seating to prevent vibration-induced loosening in harsh environments.
For AC-15 operation, the block supports up to 2 A at voltages up to 500–690 V. For DC-13, it supports up to 6 A at 24 V. These ratings allow it to drive signaling coils and logic interlocks without overloading the auxiliary circuit, ensuring reliable operation in standard control circuits.
Yes, ABB provides documentation referencing motor control and protection for rolling stock applications. The CA4-11ERT meets essential standards (IEC/EN 60947-5-1, UL 508, CSA), and is designed for reliable signaling in compact control panels common in industrial and transport environments. Confirm compatibility with your specific AF contactor lineup before deployment.
The block carries IEC/EN 60947-5-1, UL 508, and CSA C22.2 No. 14-10 certifications. It is RoHS and REACH compliant, with WEEE B2B classification, supporting global procurement and ensuring regulatory alignment for diverse manufacturing sites.
The unit measures 45 mm wide, 39.8 mm deep, and 43 mm high, with a weight of about 0.04 kg. It uses ring-tongue terminals and requires a tightening torque of 1.2 N·m on the auxiliary circuit. These specs help plan panel real estate and ensure secure wiring in confined enclosures.