ABB - Electrification NFB40ERT-14 - NFB..RT contactor relays comply with the latest railway rolling stock standards and allow installation in passengers or driver cabins for trains frequently operating tunnels or undergrounds. They are used for switching auxiliary and control circuits. Improve the compactness of the installations thanks to reduced dimension and side-by-side mounting requiring less 15% width (without spacing) from -40 °C up to +70 °C. Meet all main rollling stocks standards: IEC 60947-4-1, IEC 60947-5-1, IEC 60077-1/-2 and applicable parts of EN 50155 standards, shocks and vibration withstand conforming to IEC 61373 cat. 1, class B. Reach the highest levels in fire and smoke behaviour with compliance to European standard EN 45545-2 (HL2, HL3 hazard levels) in group mounting Reduce train energy with lighter devices and requiring 68% less coil energy consumption in operation. Electronic coil interface accepting sinusoïdal AC 50/60 Hz control supplies included inside Ucmin.... Ucmax voltage range. Max permitted AC 50/60 Hz control voltage must not be exceeded (see technical data). Wide range of auxiliary contact blocks for front and side mounting.
ABB - Electrification

NFB40ERT-14

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Overview

The ABB NFB40ERT-14 is a robust 4-pole, 40A railway contactor relay engineered for reliable switching of auxiliary and control circuits in rolling stock applications. Designed to meet the stringent requirements of modern rail transport, this device complies with key railway standards including EN 50155, IEC 60947-4-1, IEC 60947-5-1, and IEC 60077-1/-2. Its operational temperature range of -40 °C to +70 °C ensures performance in extreme conditions, making it suitable for installation in passenger or driver cabins of trains frequently operating in tunnels or underground environments. The NFB40ERT-14 offers enhanced installation flexibility with reduced dimensions, enabling side-by-side mounting with up to 15% less width required without spacing. This contributes to more compact electrical installations. Meeting the highest standards for fire and smoke behavior, the NFB40ERT-14 complies with European standard EN 45545-2 for hazard levels HL2 and HL3 in group mounting configurations. This is crucial for passenger safety in rail applications. Furthermore, this contactor relay contributes to train energy reduction through its lighter weight and significantly lower coil energy consumption, requiring 68% less energy in operation compared to conventional relays. The integrated electronic coil interface accepts sinusoidal AC 50/60 Hz control supplies across a wide Ucmin to Ucmax voltage range. The device features a general use rating of 600 V AC and a rated operational current of 70 A at ≤ 40 °C (AC-1). It is built to withstand shocks and vibrations conforming to IEC 61373 cat. 1, class B. Mounting options include 35x7.5mm or 35x15mm DIN rails, or M4 screws. Connection capacity supports 1x to 2x 0.75–2.5mm² for solid/stranded wires or flexible conductors with ferrules, and 1x or 2x AWG 18–14 for UL/CSA compliance. A wide range of auxiliary contact blocks are available for front and side mounting, providing versatile circuit configuration possibilities. Manufactured in the US, the ABB NFB40ERT-14 (SKU: NFB40ERT-14) is part of the NFB..RT series, delivering dependable performance for critical control functions in the railway industry.
  • ABB NFB40ERT-14 4-pole, 40A railway contactor relay for auxiliary and control circuits.
  • Complies with EN 50155, IEC 60947-4-1, IEC 60947-5-1, IEC 60077-1/-2 standards.
  • Wide operating temperature range: -40 °C to +70 °C.
  • Reduced dimensions for 15% less width in side-by-side mounting.
  • Meets EN 45545-2 (HL2, HL3) for fire and smoke behavior; IEC 61373 for shock/vibration.
  • Electronic coil interface supports AC 50/60Hz control supplies within Ucmin to Ucmax range
  • Wide range of auxiliary contact blocks for front and side mounting
  • Screw terminals with cable clamps for secure connections (1x–2x 0.75–2.5mm² or AWG 18–14)
  • Mounting options: 35x7.5mm/35x15mm DIN rail or M4 screws
  • Rated insulation voltage: 690V (IEC), 600V (UL/CSA); impulse withstand voltage: 6kV

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.
Rated Control Circuit Voltage
50 Hz /60 Hz DC Operation 250 ... 500 V
Size
82x110x108mm
Special Features
NFB..RT contactor relays comply with the latest railway rolling stock standards and allow installation in passengers or driver cabins for trains frequently operating tunnels or undergrounds. They are used for switching auxiliary and control circuits. Improve the compactness of the installations thanks to reduced dimension and side-by-side mounting requiring less 15% width (without spacing) from -40 °C up to +70 °C. Meet all main rollling stocks standards: IEC 60947-4-1, IEC 60947-5-1, IEC 60077-1/-2 and applicable parts of EN 50155 standards, shocks and vibration withstand conforming to IEC 61373 cat. 1, class B. Reach the highest levels in fire and smoke behaviour with compliance to European standard EN 45545-2 (HL2, HL3 hazard levels) in group mounting Reduce train energy with lighter devices and requiring 68% less coil energy consumption in operation. Electronic coil interface accepting sinusoïdal AC 50/60 Hz control supplies included inside Ucmin.... Ucmax voltage range. Max permitted AC 50/60 Hz control voltage must not be exceeded (see technical data). Wide range of auxiliary contact blocks for front and side mounting.
Standard
RoHs, CSA, cUL, CE, GOST
Terminal Type
Ring-Tongue Terminals
Type
Contactors
Package Dimensions (L x W x H)
3.11 IN x 3.425 IN x 1.85 IN
Package Dimensions (L x W x H)
7.8994 cm x 8.6995 cm x 4.699 cm
Package Weight (Imperial)
0.750 L
Package Weight (Metric)
0.340 kg
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One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

LCMA6-8-C

One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.
Ground Lug

DNGL

Ground Lug
CONTACT BLOCK BU BLB-02

BLB-02

CONTACT BLOCK BU BLB-02
CONTACT BLOCK BU BFB-40

BFB-40

CONTACT BLOCK BU BFB-40

Frequently Asked Questions

What standards does the ABB NFB40ERT-14 comply with?

The ABB NFB40ERT-14 complies with IEC 60947-4-1, IEC 60947-5-1, IEC 60077-1/-2, and applicable parts of EN 50155 standards.

What is the operating temperature range for this railway contactor?

The NFB40ERT-14 operates reliably in a wide temperature range from -40 °C up to +70 °C.

How does the NFB40ERT-14 contribute to energy efficiency in trains?

It reduces train energy consumption by 68% less coil energy consumption in operation and its lighter device weight.

What are the fire and smoke behavior ratings for this ABB relay?

It meets the highest levels in fire and smoke behavior with compliance to European standard EN 45545-2 at HL2 and HL3 hazard levels in group mounting.

What is the general use rating for the NFB40ERT-14?

The general use rating for the NFB40ERT-14 is 600 V AC.

What is the rated operational current at 40°C for AC-1?

The rated operational current at θ ≤ 40 °C AC-1 is 70 A.

What type of control supplies does the electronic coil interface accept?

The electronic coil interface accepts sinusoidal AC 50/60 Hz control supplies within the Ucmin to Ucmax voltage range.

What are the mounting options for the NFB40ERT-14?

It can be mounted on 35x7.5mm or 35x15mm DIN rails or using M4 screws.

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.

What technical support does Jokab Safety offer?

Jokab Safety offers comprehensive technical support through multiple channels, including a dedicated technical support phone line at (888) 385-1221 (Option 1) and email support at [email protected]. For advanced technical assistance, customers can contact their specialized Jokab Tech Support at (519) 982-0976 or email [email protected]. Additionally, they provide product specialist support through Jeff Leslie, who can be reached at (519) 982-0976, offering in-depth application and technical guidance.

What are the main product lines offered by Jokab Safety?

Jokab Safety offers a comprehensive range of machine safety products including safety light guards (Orion), safety controllers (Pluto), safety relays (Sentry), safety edges, safety contact mats, safety locks (Gkey), and safety sensors with OSSD and DYNlink interfaces. Their product lines are specifically designed for industrial applications in food and beverage, packaging, and material handling industries, providing robust safety solutions for machine guarding and personnel protection.

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Jokab Safety products offer comprehensive industrial safety solutions with key features including: highest safety certification levels (up to PL e/Cat 4), extensive fault detection, multiple safety device types (optical safety devices, pressure sensitive devices, sensors, switches, locks, emergency stops), and innovative DYNlink technology that reduces cable requirements and simplifies installation. Their products are certified, verified, and compatible with major industrial automation systems like B&R, featuring easy M12 connector connections and a wide range of adapters to streamline safety implementation.

What certifications and standards do ABB - Electrification products comply with?

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.

What industries and applications are ABB - Electrification products used for?

ABB - Electrification products are engineered for critical applications across multiple industries, including Energy, Oil & Gas, Manufacturing, Power Generation, HVAC, Marine, Food & Beverage, Mining, Pulp & Paper, Water Treatment, and Automotive. Their solutions cover essential electrical infrastructure needs such as switchgear, power distribution systems, circuit protection, digital control technologies, and drive systems designed for high-reliability environments with a strong focus on sustainability, efficiency, and safety.

What technical support does ABB - Electrification offer?

ABB - Electrification offers comprehensive technical support through multiple channels, including a dedicated technical support hotline at 888-385-1221 (Option 1), available 7:00 a.m. - 5:00 p.m. CST, Monday-Friday. Their support services encompass 24/7/365 emergency services, on-site support, remote monitoring and diagnostics, installation and commissioning, equipment assessments, repair coordination, and multi-vendor technical assistance. Customers can also access resources like personnel safety training, disaster recovery support, and service agreements tailored to their specific electrification needs.

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

ABB - Electrification offers a comprehensive range of electrical distribution and protection products, including circuit monitoring systems, panelboards, switchgear, motor control centers, circuit breakers, softstarters, and power distribution solutions. Key product lines span low and medium voltage applications across utilities, commercial, industrial, healthcare, and manufacturing sectors, with specialized offerings like the ReliaGear® panelboards, SMISSLINE TP bus systems, and Ekip UP protection and metering relays.

What are the key features of ABB - Electrification products?

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.

What communication protocols do ABB - Electrification products support?

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.