ABB NFZB31ERT-23: A reliable contactor relay for railway rolling stock, compliant with latest standards, suitable for 100-250V 50/60Hz and DC applications.
Product ModelNFZB31ERT-23
Material Number1SBH136060R2331
Product ID87557
Stock on Request
Last updated: 8/29/2026
Key Features
1
1. Compliance with Railway StandardsThe NFZB31ERT-23 is designed to meet the latest railway rolling stock standards, ensuring it can be safely installed in passenger or driver cabins.
2
2. Versatile Voltage CompatibilityThis contactor relay operates efficiently in both AC (100-250V, 50/60Hz) and DC (20VDC) voltage ranges, making it versatile for various applications.
3
3. High ReliabilityBuilt with robust components, the NFZB31ERT-23 provides reliable performance under demanding conditions, ensuring minimal downtime and maximum operational efficiency.
4
4. Wide Range of ApplicationsSuitable for a variety of applications including those requiring high electrical switching frequencies (AC-15: 1200 cycles per hour, DC-13: 900 cycles per hour), it is ideal for both new installations and upgrades.
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
3
Number of Auxiliary Contacts NC
1
5
5. Enhanced Safety FeaturesDesigned with safety in mind, this contactor relay adheres to stringent safety protocols, making it an excellent choice for critical infrastructure projects like railway systems.
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 100 ... 250 V 60 Hz 100 ... 250 V DC Operation 100 ... 250 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
Climatic Withstand
Category B according to IEC 60947-1 Annex Q
Maximum Operating Altitude Permissible
Without Derating 3000 m
Object Classification Code
K
ETIM 7
EC000196 - Contactor relay
ETIM 8
EC000196 - Contactor relay
ETIM 9
EC000196 - Contactor relay
eClass
V11.0 : 27371001
UNSPSC
39121500
Manufacturer ID
1SBH136060R2331
ABB NFZB31ERT-23: Reliable Railway Contactor Relay for 100-250V 50/60Hz and DC Applications | INDSLT
