ABB NX31E-88 contactor relay: 4 poles, AC-operated, block type design for efficient switching of auxiliary and control circuits.
Product ModelNX31E-88
Material Number1SBH901074R8831
Product ID74178
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Efficient Circuit SwitchingThe ABB NX31E-88 contactor relay is designed to efficiently switch both auxiliary and control circuits, ensuring reliable operation in various industrial applications.
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2. 4-Pole DesignWith a 4-pole design, this contactor relay provides comprehensive control over multiple circuits, making it versatile for a wide range of applications.
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3. AC-OperatedMechanically linked auxiliary contact elements ensure that the relay operates smoothly under AC power, providing consistent performance.
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4. High Performance and DurabilityConstructed with high-quality materials, the NX31E-88 contactor relay is built to last, offering reliable service even in demanding industrial environments.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Product Net Width
44 mm
Product Net Depth / Length
74 mm
Product Net Height
74 mm
Product Net Weight
0.315 kg
Number of Auxiliary Contacts NO
3
Number of Auxiliary Contacts NC
1
5
5. Compliance with International StandardsThe product adheres to IEC 60947-5-1 and VDE 0110 (Gr. C) standards, ensuring it meets the highest safety and performance criteria for industrial applications.
(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 Short-time Withstand Current Low Voltage (Icw)
for 0.1 s 140 A for 1 s 100 A
Maximum Electrical Switching Frequency
(AC-15) 1200 cycles per hour (DC-13) 900 cycles per hour
Rated Operational Current DC-13 (Ie)
(24 V) 6 A / 144 W (110 V) 0.55 A / 60 W (125 V) 0.55 A / 69 W (220 V) 0.30 A / 66 W (250 V) 0.30 A / 75 W (400 V) 2.8 A / 134 W (500 V) 1 A / 72 W
Rated Insulation Voltage (Ui)
acc. to IEC 60947-5-1 and VDE 0110 (Gr. C) 690 V
Rated Impulse Withstand Voltage (Uimp)
Auxiliary Circuit 6 kV
Maximum Mechanical Switching Frequency
6000 cycles per hour
Rated Control Circuit Voltage (Uc)
50 Hz 230 ... 240 V 60 Hz 240 ... 260 V
Operate Time
Between Coil De-energization and NC Contact Closing 9 ... 16 ms Between Coil De-energization and NO Contact Opening 4 ... 11 ms Between Coil Energization and NC Contact Opening 7 ... 21 ms Between Coil Energization and NO Contact Closing 10 ... 26 ms
Degree of Protection
acc. to IEC 60529, IEC 60947-1, EN 60529 Coil Terminals IP20
Terminal Type
Screw Terminals
Tightening Torque UL/CSA
Auxiliary Circuit 9 in·lb Control Circuit 9 in·lb
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
