NS31E-20

Name: NS31E-20
Brand: ABB
SKU: NS31E-20

The ABB NS31E-20 is a 4-pole contactor relay used for switching auxiliary and control circuits. It features DIN rail mounting, 3A max operating current, and 24V AC control voltage, making it suitable for various industrial applications.

Product ModelNS31E-20

Material Number1SBH101001R2031

Product ID69860

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Efficient Circuit ControlThe ABB NS31E-20 is designed to efficiently switch auxiliary and control circuits, ensuring precise control and reliability in industrial applications.
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2. Durable DesignBuilt with high-quality components, this contactor relay can operate within a temperature range of -40°C to 70°C, making it suitable for a wide range of environments.
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3. Easy InstallationThe NS31E-20 is designed for DIN rail mounting, making it easy to integrate into existing systems and reducing installation time.
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4. Reliable PerformanceWith a maximum operating current of 3A and a control voltage of 24V AC, this contactor relay provides reliable performance in various industrial settings.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Product Net Width

45 mm

Product Net Depth / Length

72.5 mm

Product Net Height

68 mm

Product Net Weight

0.22 kg

Number of Auxiliary Contacts NO

Number of Auxiliary Contacts NC

5. Versatile ApplicationsIdeal for switching auxiliary and control circuits in industrial applications such as machine shops, foundries, and breweries, the NS31E-20 offers flexibility and reliability.

IEC 60947-5-1 and EN 60947-5-1, UL 508, CSA C22.2 NÂ°14

Rated Operational Voltage

Auxiliary Circuit 690 V Main Circuit 690 V

Rated Frequency (f)

Auxiliary Circuit 50 / 60 Hz

Conventional Free-air Thermal Current (Ith)

acc. to IEC 60947-5-1, Î = 40 Â°C 10 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 (400 / 440 V) 3 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 (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

Rated Insulation Voltage (Ui)

acc. to IEC 60947-5-1 and VDE 0110 (Gr. C) 690 V acc. to UL/CSA 600 V

Rated Impulse Withstand Voltage (Uimp)

Auxiliary Circuit 6 kV

Maximum Mechanical Switching Frequency

3600 cycles per hour

Rated Control Circuit Voltage (Uc)

50 Hz 24 V 60 Hz 24 V

Operate Time

Between Coil De-energization and NC Contact Closing 7 ... 22 ms Between Coil De-energization and NO Contact Opening 5 ... 19 ms Between Coil Energization and NC Contact Opening 6 ... 18 ms Between Coil Energization and NO Contact Closing 9 ... 24 ms

Connecting Capacity Auxiliary Circuit

Flexible with Ferrule 1/2x 0.75 ... 2.5 mmÂ² Flexible with Insulated Ferrule 1x 0.75 ... 2.5 mmÂ² Flexible with Insulated Ferrule 2x 0.75 ... 1.5 mmÂ² Rigid 1/2x 0.75 ... 2.5 mmÂ²

Connecting Capacity Control Circuit

Flexible with Ferrule 1/2x 0.75 ... 2.5 mmÂ² Flexible with Insulated Ferrule 1x 0.75 ... 2.5 mmÂ² Flexible with Insulated Ferrule 2x 0.75 ... 1.5 mmÂ² Rigid 1/2x 0.75 ... 2.5 mmÂ²

Wire Stripping Length

Auxiliary Circuit 9 mm Control Circuit 9 mm

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

Terminal Type

Screw Terminals

Tightening Torque UL/CSA

Auxiliary Circuit 9 inÂ·lb Control Circuit 9 inÂ·lb

Ambient Air Temperature

Close to Contactor for Storage -60 ... +80 Â°C Near Contactor for Operation in Free Air -40 ... 70 Â°C

Climatic Withstand

Category B according to IEC 60947-1 Annex Q

Maximum Operating Altitude Permissible

Without Derating 3000 m

Resistance to Shock acc. to IEC 60068-2-27

Closed, Shock Direction: C1 19 g Closed, Shock Direction: C2 16 g Open, Shock Direction: C1 8 g Open, Shock Direction: C2 13 g Shock Direction: A 20 g Shock Direction: B1 5 g Shock Direction: B2 15 g

Resistance to Vibrations

3g Closed Position & 2g Open Position 5 ... 300 Hz

Object Classification Code

ETIM 7

EC000196 - Contactor relay

ETIM 8

EC000196 - Contactor relay

ETIM 9

EC000196 - Contactor relay

eClass

V11.0 : 27371001

UNSPSC

39121529

IDEA Granular Category Code (IGCC)

4761 >> Magnet contactor, AC-switching

Manufacturer ID

1SBH101001R2031