ABB - Electrification NF71E-14 - NF contactor relays are used for switching auxiliary and control circuits. NF contactor relays include an electronic coil interface accepting a wide control voltage Uc min. ... Uc max. Only four coils cover control voltages between 24...500 V 50/60 Hz or 20...500 V DC. NF contactor relays can manage large control voltage variations. One coil can be used for different control voltages used worldwide without any coil change. NF contactor relays have built-in surge protection and do not require additional surge suppressors. - Poles: 8-pole contactor relays with a non-removable front-mounted auxiliary contact block (mechanically-linked auxiliary contacts compliant with Annex L of IEC 60947-5-1 and including the "Mechanically Linked" symbol on the contactor relay side) - Control Circuit: AC or DC operated - Accessories: a wide range of Accessories is available.
ABB - Electrification

NF71E-14

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Overview

The ABB NF71E-14 is an 8-pole contactor relay designed for reliable switching of auxiliary and control circuits in industrial automation. This block-type relay from ABB's NF series features a non-removable front-mounted auxiliary contact block with 4 contacts. These auxiliary contacts are mechanically linked, compliant with Annex L of IEC 60947-5-1, and bear the "Mechanically Linked" symbol on the relay side, ensuring dependable operation for control and signaling tasks. The NF71E-14 boasts an electronic coil interface that accepts a broad control voltage range from 24V to 500V AC (50/60 Hz) or 20V to 500V DC. This wide coverage means only four distinct coils are needed to span global voltage standards, significantly reducing inventory complexity and associated costs. Furthermore, the integrated surge protection eliminates the requirement for external surge suppressors, safeguarding downstream components from voltage spikes and simplifying panel design. The relay operates with reduced energy consumption and provides clear visual indication of closing and opening actions. With its 8 poles and 4 auxiliary contacts, the NF71E-14 supports complex control schemes while maintaining compact dimensions of 35mm width, 77mm height, and 70mm depth. It is designed for front or side mounting and is compatible with add-on auxiliary contact blocks, offering flexibility in panel layouts. The NF71E-14 integrates seamlessly with ABB's motor protection and control ecosystem and is suitable for applications such as motor control circuits, lighting control, HVAC systems, and general industrial automation where robust auxiliary switching is essential. Key specifications include 8 main poles, 4 auxiliary contacts (mechanically linked), a control voltage range of 24-500V AC (50/60Hz) or 20-500V DC, built-in surge suppression, and 35mm DIN rail mounting (EN/IEC 60715 compliant). Dimensions are 35 x 77 x 70mm (W x H x D), with a weight of 0.36kg. It complies with IEC 60947-5-1 (Annex L).
  • 8-pole contactor relay with a non-removable front-mounted auxiliary contact block (4 contacts)
  • Mechanically linked auxiliary contacts compliant with IEC 60947-5-1 Annex L
  • Wide control voltage range: 24-500V AC (50/60 Hz) or 20-500V DC
  • Built-in surge protection eliminates need for external suppressors
  • Compact 35mm width, 77mm height, 70mm depth, DIN rail mountable

Specifications

Application
Mainly used for controlling 3-phase motors and generally for controlling power circuits up to 690 V AC and 220 V DC. The contactors can also be used for many other applications such as bypass, capacitor switching, lighting, DC power circuits.
Frequency
50/60 Hz
Poles
8
Rated Control Circuit Voltage
50 Hz /60 Hz DC Operation 250 ... 500 V
Series
NF
Size
82x110x108mm
Special Features
NF contactor relays are used for switching auxiliary and control circuits. NF contactor relays include an electronic coil interface accepting a wide control voltage Uc min. ... Uc max. Only four coils cover control voltages between 24...500 V 50/60 Hz or 20...500 V DC. NF contactor relays can manage large control voltage variations. One coil can be used for different control voltages used worldwide without any coil change. NF contactor relays have built-in surge protection and do not require additional surge suppressors. - Poles: 8-pole contactor relays with a non-removable front-mounted auxiliary contact block (mechanically-linked auxiliary contacts compliant with Annex L of IEC 60947-5-1 and including the "Mechanically Linked" symbol on the contactor relay side) - Control Circuit: AC or DC operated - Accessories: a wide range of Accessories is available.
Standard
RoHs, CSA, cUL, CE, GOST
Terminal Type
Screw Terminals
Type
Contactors
Package Dimensions (L x W x H)
4.449 IN x 3.425 IN x 1.85 IN
Package Dimensions (L x W x H)
11.3005 cm x 8.6995 cm x 4.699 cm
Package Weight (Imperial)
0.860 L
Package Weight (Metric)
0.390 kg
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LCMA6-8-C

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Ground Lug

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CONTACT BLOCK BU BFB-20

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Frequently Asked Questions

What is the control voltage range for the ABB NF71E-14?

The ABB NF71E-14 accepts a wide control voltage range from 24V to 500V AC (50/60 Hz) or 20V to 500V DC.

Does the NF71E-14 have built-in surge protection?

Yes, the NF71E-14 features built-in surge protection, eliminating the need for additional surge suppressors.

How many poles does the NF71E-14 have?

The NF71E-14 is an 8-pole contactor relay with a non-removable front-mounted auxiliary contact block containing 4 auxiliary contacts.

Are the auxiliary contacts on the NF71E-14 mechanically linked?

Yes, the NF71E-14 has mechanically linked auxiliary contacts that are compliant with Annex L of IEC 60947-5-1.

What are the dimensions of the ABB NF71E-14?

The ABB NF71E-14 has dimensions of 35mm width, 77mm height, and 70mm depth.

Frequently Asked Questions about ABB - Electrification

What industries and applications are Jokab Safety products used for?

Jokab Safety products are specifically designed for machine safety applications across multiple critical industrial sectors, including Food and Beverage, Packaging, and Material Handling industries. Their safety solutions cover a wide range of machine safeguarding needs, such as safety light guards, safety controllers, safety relays, safety edges, safety mats, and two-hand control devices that protect personnel and equipment in complex industrial automation environments.

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ABB - Electrification products comply with a comprehensive range of international certifications and standards, including UL (United States), CSA (Canada), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia & New Zealand). Our products meet critical international standards such as IEC 60947 series for low-voltage switchgear, functional safety standards EN 61800-5-2 and ISO 13849-1, and marine classification standards from Bureau Veritas, DNV, and Lloyd's Register of Shipping.

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What are the main product lines offered by ABB - Electrification?

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ABB - Electrification products feature advanced integrated design elements that enhance industrial performance and reliability. Key features include harmonics and EMC design, integrated DC choke, removable terminals for fast installation, USB ports for troubleshooting, and integrated Safe Torque Off (STO) functionality. The products deliver superior motor control capabilities, support both induction and permanent magnet motors, and offer robust operational features like side-by-side mounting without derating and operation at temperatures up to 45°C. Additionally, ABB's Electrification solutions emphasize digital innovation, with technologies like Novolink enabling predictive maintenance, enhanced analytics, and seamless system integration.

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ABB - Electrification products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, DeviceNet, and IEC 61850. These protocols enable flexible connectivity across multiple industrial automation platforms, with support for various network topologies and high-speed data transmission up to 100 Mbps.