ABB NFB40ERT-14: A reliable DC contactor for 250-500V applications, ensuring efficient and safe electrical connections in various industrial settings.
Product ModelNFB40ERT-14
Material Number1SBH137060R1440
Product ID86616
Stock on Request
Last updated: 8/29/2026
Key Features
1
Feature1. Reliability and Durability \"Built to last, the ABB NFB40ERT-14 contactor offers exceptional reliability and durability, ensuring consistent performance in demanding industrial environments.\"\",\"2. Efficient Electrical Connections \"With its robust design, the NFB40ERT-14 contactor ensures efficient electrical connections, minimizing downtime and maximizing productivity.\"\",\"3. Wide Voltage Range \"Designed to handle a wide voltage range of 250-500V, this contactor is versatile and adaptable to various industrial applications.\"\",\"4. Safety Features \"Equipped with advanced safety features, the ABB NFB40ERT-14 contactor provides secure and reliable operation, protecting both equipment and personnel.\"\",\"5. Easy Installation \"Featuring a user-friendly design, the NFB40ERT-14 contactor is easy to install, reducing setup time and minimizing the need for specialized technical expertise.\"
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
77 mm
Product Net Height
86 mm
Product Net Weight
0.32 kg
Number of Auxiliary Contacts NO
4
Number of Auxiliary Contacts NC
0
Standards
IEC/EN 60947-1, IEC/EN 60947-5-1, UL 60947-5-1, CSA C22.2 No. 60947-5-1, IEC 60077-1 (applicable parts), IEC 60077-2 (applicable parts), EN 50155 (applicable parts), TR CU 001/2011, IEC 61373, For compliance confirmation on applicable parts based on your application and combination, please consult your ABB sales representatives.
Rated Operational Voltage
Auxiliary Circuit 690 V
Rated Frequency (f)
Auxiliary Circuit 50 / 60 Hz Control Circuit 50 / 60 Hz Main 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)
50 Hz 250 ... 500 V 60 Hz 250 ... 500 V DC Operation 250 ... 500 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
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
Ring-Tongue Terminals
Tightening Torque UL/CSA
Auxiliary Circuit 11 in·lb Control Circuit 11 in·lb
Ambient Air Temperature
Close to Contactor for Storage -60 ... +80 °C Near Contactor for Operation in Free Air -40 ... 70 °C
