NFZ44EK-20

Name: NFZ44EK-20
Brand: ABB
SKU: NFZ44EK-20

The ABB NFZ44EK-20 is a versatile DC contactor suitable for switching auxiliary and control circuits. It operates at 20 VDC with a 6 Amp rating, ensuring reliable power control in various applications.

Product ModelNFZ44EK-20

Material Number1SBH136005R2044

Product ID85861

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable Power ControlThe ABB NFZ44EK-20 ensures consistent and reliable power control in your electrical systems, making it ideal for critical applications.
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2. Versatile DesignThis DC contactor is designed to switch auxiliary and control circuits, making it versatile for a wide range of applications.
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3. Efficient OperationWith a 20 VDC, 6 Amp rating, the NFZ44EK-20 operates efficiently, reducing energy waste and improving overall system performance.
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4. Durable ConstructionBuilt with high-quality components, the NFZ44EK-20 is designed to withstand the demands of continuous operation, ensuring a long lifespan.
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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

110.5 mm

Product Net Height

92.3 mm

Product Net Weight

0.36 kg

Number of Auxiliary Contacts NO

Number of Auxiliary Contacts NC

5. Easy InstallationFeaturing push-in spring terminals, the NFZ44EK-20 is easy to install, reducing setup time and minimizing the risk of errors during installation.

IEC/EN 60947-1, IEC/EN 60947-5-1, UL 508, CSA C22.2 No. 14-13

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 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 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 (400 V) 0.15 A / 60 W (500 V) 0.13 A / 65 W (600 V) 0.1 A / 60 W

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 Mechanical Switching Frequency

6000 cycles per hour

Rated Control Circuit Voltage (Uc)

DC Operation 12 ... 20 V

Operate Time

Between Coil De-energization and NC Contact Closing 13 ... 98 ms Between Coil De-energization and NO Contact Opening 11 ... 95 ms Between Coil Energization and NC Contact Opening 38 ... 90 ms Between Coil Energization and NO Contact Closing 40 ... 95 ms

Mounting on DIN Rail

TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715 TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715

Mounting by Screws (not supplied)

2 x M4 screws placed diagonally

Connecting Capacity Auxiliary Circuit

Flexible with Ferrule 1/2x 0.5 ... 2.5 mmÂ² Flexible with Insulated Ferrule 1/2x 0.5 ... 1.5 mmÂ² Flexible 1/2x 0.5 ... 2.5 mmÂ² Rigid Solid 1/2x 1 ... 2.5 mmÂ²

Connecting Capacity Control Circuit

Flexible with Ferrule 1/2x 0.5 ... 2.5 mmÂ² Flexible with Insulated Ferrule 1/2x 0.5 ... 1.5 mmÂ² Flexible 1/2x 0.5 ... 2.5 mmÂ² Rigid Solid 1/2x 1 ... 2.5 mmÂ²

Wire Stripping Length

Auxiliary Circuit 10 mm Control Circuit 10 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

Push-in Spring Terminals

Connecting Capacity Auxiliary Circuit UL/CSA

Rigid Solid 1/2x 18-14 AWG

Connecting Capacity Control Circuit UL/CSA

Rigid Solid 1/2x 18-14 AWG

Ambient Air Temperature

Close to Contactor for Storage -60 ... +80 Â°C Near Contactor for Operation in Free Air -40 ... 70 Â°C Near Contactor for Operation in Free Air (0.85 ... 1.1 Uc) -40 ... +60 Â°C Near Contactor for Operation in Free Air (Uc) -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 Vibrations

4g 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)

4763 >> Power contactor, DC switching

E-Number (Finland)

3708009

Manufacturer ID

1SBH136005R2044