ABB 1SBN010110R1020 CA4-20 Auxiliary Contact Block - CE
Part Number: 1SBN010110R1020
Quick Summary
ABB CA4-20 Auxiliary Contact Block provides 2-pole signaling for ABB AF/NF contactors in control panels. Maintenance teams often contend with flaky status signals that cause unexpected downtime. This block complies with IEC 60947-5-1, UL 60947-5-1, and CSA standards. Front mounting and screw-terminal wiring simplify installation on AF/NF series, improving serviceability. It provides two Normally Open contacts suitable for signaling and interlock logic in control circuits. Rated for auxiliary circuits up to 690 V and compatible with 50/60 Hz systems, it supports global deployments. With a compact 43 mm width and a weight of 0.024 kg, it fits tight panel spaces while reducing wiring complexity. By adopting RoHS and CE declarations, it helps meet regulatory requirements and lowers maintenance costs.
Product Information
Extended Description
1SBN010110R1020 ABB: CA4-20 is a 2-pole front mounted auxiliary contact block equipped with screw terminals and can be fitted on AF(C)09(Z)...96 contactors and NF(C)(Z) contactor relays. CA4-20 is available with 2 N.O. instantaneous contacts for standard industrial environments.
Minimum Order Quantity
1 piece
Customs Tariff Number
85389099
Instructions and Manuals (Part 2)
Contactors and Overload relays guide
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
Product Net Width
43 mm
Product Net Depth / Length
19.9 mm
Product Net Height
23.6 mm
Product Net Weight
0.024 kg
Number of Auxiliary Contacts NO
2
Number of Auxiliary Contacts NC
0
Number of Poles
2P
Standards
IEC/EN 60947-5-1, UL 60947-5-1, CSA C22.2 No. 60947-5-1-14
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 IEC 60947-5-1 and VDE 0110 (Gr. C) 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
Power Loss
at 6 A per Pole 0.1 W
Connecting Capacity Auxiliary Circuit
Flexible with Ferrule 1/2x 0.75 ... 2.5 mm² | Flexible with Insulated Ferrule 2x 0.75 ... 1.5 mm² | Flexible with Insulated Ferrule 1x 0.75 ... 2.5 mm² | Rigid 1/2x 1 ... 2.5 mm² | Rigid Solid 1/2x 1 ... 2.5 mm² | Rigid Stranded 1/2x 1 ... 2.5 mm²
Wire Stripping Length
Auxiliary Circuit 10 mm
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
Screw Terminals
Suitable For
AF09 | AF09Z | AF12 | AF12Z | AF16 | AF16Z | AF26 | AF26Z | AF30 | AF30Z | AF38 | AF38Z | AF40 | AF52 | AF65 | AF80 | AF96 | AFC09 | AFC12 | AFC16 | AFC26 | AFC30 | AFC38 | AFC40 | AFC52 | AFC65 | AFC80 | AFC96 | NF22E | NFZ22E | NF31E | NFZ31E | NF40E | NFZ40E | NFC22E | NFC31E | NFC40E | NFZB22E | NFB22E | NFZB31E | NFB31E | NFZB40E | NFB40E
Product Name
Auxiliary Contact Block
Connecting Capacity Auxiliary Circuit UL/CSA
Rigid Solid 1/2x 18-14 AWG | Rigid Stranded 1/2x 18-14 AWG
Tightening Torque UL/CSA
Auxiliary Circuit 11 in·lb
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)
Declaration of Conformity - CCC
CQC Certificate, Auxiliray Contact, CA4-10, CA4-01, CAL4-11, CAL4-11RT, Made in China
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
Package Level 1 Units
bag 1 piece
Package Level 1 Width
110 mm
Package Level 1 Depth / Length
110 mm
Package Level 1 Height
30 mm
Package Level 1 Gross Weight
0.026 kg
Package Level 1 EAN
3471523024694
Package Level 2 Units
box 50 piece
Package Level 2 Gross Weight
1.4 kg
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
39121500
Front-mounted, 2-pole CA4-20 auxiliary contact block with screw terminals enables rapid signaling upgrades on ABB AF/NF contactors. The compact design reduces panel depth and simplifies wiring, cutting installation time and enabling scalable panel modernization across multiple machines. With two normally open contacts, it provides reliable open-state signaling for control logic and interlocks. Rated for auxiliary circuits up to 690 V and 50/60 Hz, it supports diverse industrial systems. Operational currents vary by voltage: AC-15 up to 2 A at higher voltages and up to 6 A at lower voltages for DC-13, enabling signaling without overloading the contactor. Conductor connections support flexible ferrules and rigid conductors ranging from 0.75 to 2.5 mm², with stripping length 10 mm and tightening torque 1.2 N·m. The IP20 protection on auxiliary terminals and compact 43 mm width help keep installations safe and neat in crowded panels. Designed for RoHS/REACH compliance and CE declarations, it reduces regulatory risk and simplifies maintenance planning. Front mounting compatibility with a broad range of ABB contactors including AF09 to NFZ series accelerates upgrades and standardizes panel practices. Power loss remains minimal at 0.1 W per pole, contributing to lower overall energy usage in signaling circuits. These factors together deliver faster commissioning, reduced downtime, and lower total cost of ownership in industrial automation environments.
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FAQs
The CA4-20 is designed as a front-mounted auxiliary block that fits a wide range of ABB contactors, including AF, AFC, NF, NFC series, and related variants. It mounts on compatible devices to extend signaling without reconfiguring the control circuit, helping standardize spare parts and simplify stocking for multi-line installations.
The CA4-20 provides two normally open contacts and supports auxiliary voltages up to 690 V with 50/60 Hz operation. Rated operational currents for AC-15 span from 2 A at higher voltages down to 3–6 A at lower voltages (e.g., 24/127 V, 220/240 V, 400/440 V), with DC-13 ratings suitable for signaling at various DC levels. It also offers a 6 kV impulse withstand and 16 A Ith according to IEC/EN 60947-5-1 standards.
Yes. The CA4-20 complies with IEC/EN 60947-5-1 and UL 60947-5-1, CSA C22.2, and carries CE declarations. It is RoHS and REACH compliant, with WEEE categorization for B2B use, ensuring regulatory alignment for global deployments and cross-border projects.
The CA4-20 is front-mounted with screw terminals for reliable connections. Dimensions are 43 mm wide, 19.9 mm deep, and 23.6 mm high, with a unit weight of 0.024 kg. Conductor connections accept flexible or rigid conductors from 0.75 to 2.5 mm², 10 mm stripping length, and a tightening torque of 1.2 N·m, making installation straightforward in tight panels.
Adding the CA4-20 enhances signaling reliability, reducing misinterpretation of contactor status and minimizing unplanned downtime. Its compact footprint and broad compatibility simplify upgrades and spare parts planning, while the low power loss (0.1 W per pole) improves overall energy efficiency in signaling circuits. Combined with CE/UL/CSA compliance, it supports faster commissioning and lower total cost of ownership in automation environments.