ABB NFZ31EK-30 contactor relay offers reliable motor protection and control for industrial applications. Efficient and safe operation with 24 V DC control voltage.
Product ModelNFZ31EK-30
Material Number1SBH136005R3031
Product ID87375
Stock on Request
Last updated: 8/29/2026
Key Features
1
Feature1. Reliable Motor Protection \"The ABB NFZ31EK-30 contactor relay provides robust motor protection, ensuring the longevity and efficiency of your industrial equipment. Its advanced design ensures reliable operation under various conditions.\"\",\"2. Efficient Control \"With its precise control mechanisms, the NFZ31EK-30 contactor relay optimizes motor performance, reducing energy consumption and enhancing overall system efficiency.\"\",\"3. Safe Operation \"Designed with safety in mind, the NFZ31EK-30 contactor relay features built-in safety mechanisms to prevent accidents and ensure a secure working environment. It adheres to UL60947-4-1 and CSA C22.2 NO. 60947-4-1 standards.\"\",\"4. Versatile Applications \"The ABB NFZ31EK-30 contactor relay is versatile and can be used in a variety of industrial applications, including HVAC systems, pumps, and conveyor belts. Its adaptability makes it a valuable addition to any industrial setup.\"\",\"5. High-Quality Components \"Built with high-quality components, the NFZ31EK-30 contactor relay offers durability and reliability. Its robust construction ensures it can withstand the demands of continuous operation in harsh 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
45 mm
Product Net Depth / Length
97 mm
Product Net Height
92.3 mm
Product Net Weight
0.435 kg
Number of Auxiliary Contacts NO
3
Number of Auxiliary Contacts NC
1
Standards
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, Π= 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 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 24 V
Coil Consumption
Average Holding Value DC 1.7 W Average Pull-in Value, from Cold State 6 W
Operate Time
Between Coil De-energization and NC Contact Closing 22 ... 57 ms Between Coil De-energization and NO Contact Opening 17 ... 29 ms Between Coil Energization and NC Contact Opening 20 ... 35 ms Between Coil Energization and NO Contact Closing 27 ... 53 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
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 °C Near Contactor for Operation in Free Air -40 ... 70 °C Near Contactor for Operation in Free Air (0.85 ... 1.1 Uc) -40 ... +60 °C Near Contactor for Operation in Free Air (Uc) -40 ... 70 °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
