Contact for Pricing
Overview
- Wide control voltage range: 24–500 V AC (50/60 Hz) or 20–500 V DC
- Built-in surge protection eliminates need for external suppressors
- Push-in Spring terminals for fast, secure wiring with single push
- 4-pole configuration with mechanically-linked auxiliary contacts (IEC 60947-5-1 Annex L compliant)
- Compatible with DIN rail mounting and wide range of accessories
Specifications
Connection Type | Push-in Spring terminals |
Frequency | 50/60 Hz |
Poles | 4 |
Poles | 4-Pole |
Rated Control Circuit Voltage | 50 Hz /60 Hz DC Operation 250 ... 500 V |
Series | NF..K |
Special Features | NF..K 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. NF..K include Push-in Spring terminals. Only one push is all you need for extremely fast wiring: faster than ever installation, easier than ever wiring, reliable as ever connections. - Poles: 4-pole contactor relays (mechanically-linked auxiliary contacts compliant with Annex L of IEC 60947-5-1 and including the "Mechanically Linked" symbol on the contactor relay side) - Accessories: a wide range of accessories is available. |
Terminal Type | Push-in Spring Terminals |
Voltage Rating | 24...500 V 50/60 Hz or 20...500 V DC |
Voltage Rating | 24-500 V AC/DC |
Package Dimensions (L x W x H) | 3.386 IN x 3.661 IN x 1.772 IN |
Package Dimensions (L x W x H) | 8.6004 cm x 9.2989 cm x 4.5009 cm |
Package Weight (Imperial) | 0.750 L |
Package Weight (Metric) | 0.340 kg |
Frequently Asked Questions
How many poles does the NF31EK-14 have?
The NF31EK-14 is a 4-pole contactor relay with mechanically-linked auxiliary contacts.
Is the NF31EK-14 compliant with IEC 60947-5-1?
Yes, the NF31EK-14 includes mechanically-linked auxiliary contacts compliant with Annex L of IEC 60947-5-1.
Does the NF31EK-14 require external surge protection?
No, the NF31EK-14 includes built-in surge protection, eliminating the need for additional surge suppressors.
What control voltages does the NF31EK-14 support?
The NF31EK-14 supports control voltages from 24 to 500 V AC (50/60 Hz) or 20 to 500 V DC, covering global voltage standards without coil changes.
What terminal type does the NF31EK-14 use?
The NF31EK-14 uses Push-in Spring terminals for fast, secure wiring with a single push.
What mounting options are available for the NF31EK-14?
The NF31EK-14 is designed for DIN rail mounting, providing easy integration into control panels.
Does the NF31EK-14 support accessories?
Yes, the NF31EK-14 supports a wide range of accessories, including auxiliary contacts, timers, and surge protection modules.
Can the NF31EK-14 be used in motor control applications?
Yes, the NF31EK-14 is suitable for switching auxiliary and control circuits in motor control and automation systems.
How to Install the ABB NF31EK-14 Contactor Relay
Step-by-step guide to mounting and wiring the NF31EK-14 contactor relay on a DIN rail.
Estimated time: 15m
Tools needed:
Screwdriver, Wire strippers
Supplies needed:
DIN rail, Mounting screws (if required), Control wires
- Mount the relay to the DIN rail
Position the NF31EK-14 on the DIN rail and press firmly until it clicks into place. Ensure the relay is securely attached to prevent movement during operation.
- Connect the control voltage wires
Insert the control voltage wires into the Push-in Spring terminals. Push the wires firmly until they are fully seated. Verify the voltage matches the relay's rated range (24–500 V AC/DC).
- Connect the auxiliary circuit wires
Insert the auxiliary circuit wires into the Push-in Spring terminals for the 4-pole contacts. Ensure the wires are correctly routed and secured to prevent loose connections.
- Verify connections and power on
Double-check all wire connections for proper seating and insulation. Apply power and test the relay operation to confirm correct switching of auxiliary and control circuits.
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.
What are the key features of Jokab Safety products?
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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.