"ABB NS71ES-20: 24V 50/60Hz contactor relay for efficient switching of auxiliary and control circuits. Reliable, durable, and suitable for various industrial applications."
Product ModelNS71ES-20
Material Number1SBH101004R2071
Product ID70061
Stock on Request
Last updated: 8/29/2026
Key Features
1
1. Reliable Operation\"The ABB NS71ES-20 contactor relay is built to last, ensuring reliable operation in a wide range of industrial settings. Its robust design withstands various environmental conditions, making it a trusted choice for critical applications.\"
2
2. Efficient Switching\"Designed for efficient switching of auxiliary and control circuits, the NS71ES-20 contactor relay minimizes downtime and maximizes productivity. Its precise control ensures smooth operation, even in demanding conditions.\"
3
3. Versatile Compatibility\"The NS71ES-20 is compatible with both 50Hz and 60Hz frequencies, making it suitable for a wide range of applications across different regions. Its versatility ensures that it can be easily integrated into various industrial systems.\"
4
4. Durable Construction\"Constructed with high-quality materials, the NS71ES-20 contactor relay is built to withstand harsh environments. Its durable construction ensures that it remains operational even under extreme conditions, reducing the need for frequent replacements.\"
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
110.7 mm
Product Net Height
68 mm
Product Net Weight
0.26 kg
Number of Auxiliary Contacts NO
7
Number of Auxiliary Contacts NC
1
5
5. Compliance with Standards\"The ABB NS71ES-20 meets international standards such as IEC 60947-5-1, UL 508, and CSA C22.2 No.14. This ensures that the device operates safely and efficiently, meeting the highest standards of quality and reliability.\"
Standards
IEC 60947-5-1 and EN 60947-5-1, UL 508, CSA C22.2 N°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, Π= 40 °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
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
Spring Terminals
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
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
