ABB 1SBL281074R8310 Block Contactor - CE UL Certified
Part Number: 1SBL281074R8310
Quick Summary
Block Contactor ABB 1SBL281074R8310 is a 3-pole device designed to reliably control three‑phase motors up to 690 V. Engineers frequently face space constraints, thermal management challenges, and the need for quick, repeatable switching under peak loads. CE and UL certifications back regulatory compliance and safety, while RoHS and REACH declarations support environmental responsibility across European and global supply chains. With a compact footprint, modular accessories, and robust current ratings, this block contactor delivers measurable value for OEMs and service teams by reducing footprint, simplifying wiring, and improving uptime.
Product Information
Extended Description
1SBL281074R8310 ABB: AX32, AX40 contactors are mainly used for controlling 3-phase motors and power circuits up to 690 V AC. These contactors are of the block type design with: – 3 main poles and 1 built-in auxiliary contact – control circuit: AC operated – add-on auxiliary contact blocks for front or side mounting and a wide range of accessories.
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
1SBC100187L0203
Instructions and Manuals
AX 06~40A instructions
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
Product Net Width
54 mm
Product Net Depth / Length
90 mm
Product Net Height
108.3 mm
Product Net Weight
0.667 kg
Number of Main Contacts NO
3
Number of Main Contacts NC
0
Number of Auxiliary Contacts NO
1
Number of Auxiliary Contacts NC
0
Rated Operational Voltage
Auxiliary Circuit 690 V | Main Circuit 690 V
Rated Frequency (f)
Auxiliary Circuit 50 / 60 Hz | Main Circuit 50 / 60 Hz
Conventional Free-air Thermal Current (Ith)
acc. to IEC 60947-4-1, Open Contactors Θ = 40 °C 65 A | acc. to IEC 60947-5-1, Θ = 40 °C 16 A
Rated Operational Current AC-1 (Ie)
(220 / 240 V) 55 °C 55 A | (690 V) 40 °C 55 A | (690 V) 70 °C 39 A
Rated Operational Current AC-3 (Ie)
(415 V) 55 °C 32 A | (440 V) 55 °C 32 A | (500 V) 55 °C 28 A | (690 V) 55 °C 21 A | (380 / 400 V) 55 °C 32 A | (220 / 230 / 240 V) 55 °C 32 A
Rated Operational Current AC-15 (Ie)
(500 V) NC 2 | (500 V) 2 A | (690 V) 2 A | (24 / 127 V) 6 A | (220 / 240 V) 4 A | (380 / 400 V) 3 A | (400 / 440 V) 2 A
Rated Operational Current DC-13 (Ie)
(24 V) 6 A / 144 W | (110 V) 0.55 A / 60 W | (125 V) 1.1 A / 138 W | (220 V) 0.55 A / 121 W | (250 V) 0.55 A / 138 W | (400 V) 2.8 A / 134 W | (500 V) 2 A / 144 W
Rated Operational Power AC-3 (Pe)
(415 V) 15 kW | (440 V) 18.5 kW | (500 V) 18.5 kW | (690 V) 18.5 kW | (380 / 400 V) 15 kW | (220 / 230 / 240 V) 9 kW
Rated Short-time Withstand Current Low Voltage (Icw)
at 40 °C Ambient Temp, in Free Air, from a Cold State 10 s 400 A | at 40 °C Ambient Temp, in Free Air, from a Cold State 15 min 65 A | at 40 °C Ambient Temp, in Free Air, from a Cold State 1 min 150 A | at 40 °C Ambient Temp, in Free Air, from a Cold State 1 s 600 A | at 40 °C Ambient Temp, in Free Air, from a Cold State 30 s 225 A | for 0.1 s 140 A | for 1 s 100 A
Maximum Breaking Capacity
cos phi=0.45 (cos phi=0.35 for Ie > 100 A) at 440 V 820 A | cos phi=0.45 (cos phi=0.35 for Ie > 100 A) at 690 V 340 A
Rated Insulation Voltage (Ui)
acc. to IEC 60947-4-1 and VDE 0110 (Gr. C) 690 V
Rated Impulse Withstand Voltage (Uimp)
Auxiliary Circuit 6 kV
Maximum Electrical Switching Frequency
(AC-1) 600 cycles per hour | (AC-15) 1200 cycles per hour | (AC-3) 1200 cycles per hour | (DC-13) 900 cycles per hour
Maximum Mechanical Switching Frequency
3600 cycles per hour
Rated Control Circuit Voltage (Uc)
50 Hz 48 V | 60 Hz 48 V
Power Loss
at Rated Operating Conditions AC-1 per Pole 2.5 W | at Rated Operating Conditions AC-3 per Pole 0.9 W
Operate Time
Between Coil De-energization and NC Contact Closing 7 ... 14 ms | Between Coil De-energization and NO Contact Opening 4 ... 11 ms | Between Coil Energization and NC Contact Opening 6 ... 18 ms | Between Coil Energization and NO Contact Closing 8 ... 21 ms
Degree of Protection
acc. to IEC 60529, IEC 60947-1, EN 60529 Auxiliary Terminals IP20 | acc. to IEC 60529, IEC 60947-1, EN 60529 Coil Terminals IP20 | acc. to IEC 60529, IEC 60947-1, EN 60529 Main Terminals IP20
Tightening Torque
Auxiliary Circuit 1 N·m | Control Circuit 1 N·m | Main Circuit 2.3 N·m
Terminal Type
Screw Terminals
Product Name
Block Contactor
General Use Rating UL/CSA
(600 V AC) 50 A
Horsepower Rating UL/CSA
(120 V AC) Single Phase 3 hp | (200 ... 208 V AC) Three Phase 10 hp | (220 ... 240 V AC) Three Phase 10 hp | (240 V AC) Single Phase 7.5 hp | (440 ... 480 V AC) Three Phase 25 hp | (550 ... 600 V AC) Three Phase 30 hp
Tightening Torque UL/CSA
Auxiliary Circuit 9 in·lb | Control Circuit 9 in·lb | Main Circuit 20 in·lb
Full Load Amps Motor Use
(120 V AC) Single Phase 34 A | (200 ... 208 V AC) Three Phase 32.2 A | (220 ... 240 V AC) Three Phase 28 A | (240 V AC) Single Phase 40 A | (440 ... 480 V AC) Three Phase 34 A | (550 ... 600 V AC) Three Phase 32 A
Ambient Air Temperature
Close to Contactor Fitted with Thermal O/L Relay -25 ... 55 °C | Close to Contactor without Thermal O/L Relay -40 ... 70 °C | Close to Contactor for Storage -60 ... +80 °C | Near Contactor for Operation in Free Air -40 ... 70 °C
Climatic Withstand
acc. to IEC 60068-2-30 and 60068-2-11 - UTE C 63-100 specification II
Maximum Operating Altitude Permissible
Without Derating 3000 m
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
Toxic Substances Control Act - TSCA
Toxic Substances Control Act (TSCA) declaration for Contactors
WEEE B2C / B2B
Business To Business
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
CB Certificate
AX 32~40A CB certification
CCC Certificate
9AKK107492A7090
CCS Certificate
CCS Certificate of AFC09 ... AFC96 , AX09-AX370 contactors
CQC Certificate
CQC Certificate, Contactor, AX32, AX40, Made in China
Declaration of Conformity - CCC
CCC Declaration of Conformity, Contactor, AX32, AX40, Made in China
Declaration of Conformity - CE
EU Declaration of Conformity AX06, AX09, AX12, AX18, AX25, AX32, AX40, AX50, AX65, AX80 3-pole Contactors
UL Certificate
UL Certificate of Compliance – AX06, AX09, AX12, AX18, AX25
Package Level 1 Units
box 1 piece
Package Level 1 Width
65 mm
Package Level 1 Depth / Length
101 mm
Package Level 1 Height
115 mm
Package Level 1 Gross Weight
0.71 kg
Package Level 1 EAN
3471522399830
Package Level 2 Units
12 piece
Package Level 2 Width
240 mm
Package Level 2 Depth / Length
295 mm
Package Level 2 Height
145 mm
Package Level 2 Gross Weight
8.52 kg
Object Classification Code
Q
ETIM 7
EC000066 - Power contactor, AC switching
ETIM 8
EC000066 - Power contactor, AC switching
ETIM 9
EC000066 - Power contactor, AC switching
eClass
V11.0 : 27371003
UNSPSC
39121529
IDEA Granular Category Code (IGCC)
4755 >> Contactors
Feature: Three main NO contacts and one auxiliary NO contact enable comprehensive control of motor circuits. Benefit: Reduces wiring complexity and enables versatile control schemes, improving startup reliability in conveyors, pumps, and fans. Application: Suitable for 3‑phase motors in industrial automation environments. Feature: Coil voltage of 48 V (50/60 Hz) supports standard control circuits and compatibility with common control relays. Benefit: Simplifies control wiring and reduces shoulder-load on control cabinets, enabling faster panel design and lower installation time. Application: Industrial control panels and automation cabinets.Feature: Rated insulation voltage 690 V and 50/60 Hz operation across auxiliary and main circuits. Benefit: Enables safe switching of high‑voltage motor loads with broad regulatory compliance. Application: Up to 690 V motor drives in manufacturing lines.Feature: Mechanical switching frequency up to 3600 cycles per hour and electrical switching up to 1200 cycles per hour (AC-1/AC-3). Benefit: Supports demanding cycle rates and longer equipment uptime with predictable performance. Application: Recurrent start/stop cycles in process lines and material handling.Feature: IP20 protection and screw terminals with specified tightening torques. Benefit: Durable in typical factory environments and straightforward installation with secure connections. Application: Panel-mounted installations with reliable terminal integrity.Feature: Compact dimensions (54 mm width, 90 mm depth, 108.3 mm height) and weight around 0.667 kg. Benefit: Reduces panel depth and enables denser component layouts, supporting compact control systems. Application: OEM equipment where space is at a premium.Feature: Wide range of accessories and add-on auxiliary contact blocks for front or side mounting. Benefit: Scales with evolving control requirements without replacing the base device. Application: Modular automation setups and retrofit projects.
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FAQs
Wire the main circuit through the screw terminals with a suitable conductor size for the rated Ie; connect the 48 V control coil to the control circuit powered at 50/60 Hz. Use the auxiliary contact block if required for feedback, and ensure IP20 enclosure and tightening torques (Auxiliary 1 N·m, Control 1 N·m, Main 2.3 N·m) are observed for reliable operation.
For 690 V operation, the Rated Operational Current AC-3 is 21 A, and AC-1 is 39–55 A depending on ambient temperature (55 °C/70 °C ratings). The device supports high short-time withstand currents and a maximum breaking capacity suitable for motor loads with cos φ around 0.45.
Yes. Its 690 V insulation rating, IP20 protection, 48 V control coil, 3-pole NO/main contacts plus 1 auxiliary NO contact, and modular accessory options make it suitable for conveyor drives and pumping applications where reliable switching, compact footprint, and serviceability are important.
The AX32/AX40 family carries CE declarations of conformity, UL certification for applicable models, and RoHS/REACH declarations. This ensures regulatory compliance for European and North American markets and confirms environmental and material safety across lifecycle stages.
The device’s modular accessories, reliable 50/60 Hz coil operation, and robust 690 V ratings reduce maintenance downtime by simplifying retrofits and enabling quick accessory upgrades. Its compact footprint also lowers panel space costs, contributing to a favorable total cost of ownership over the equipment lifetime.