ABB - Electrification NFZ31E-30 - NFZ contactor relays are used for switching auxiliary and control circuits. NFZ contactor relays with coil 30 include a 24 V DC electronic coil interface with a built-in surge suppression, obtaining a reduced holding coil consumption up to 1.7 W for a low panel energy consumption and a direct control by PLC-output ≥ 250 mA 24 V DC, without need of additional interface relay. Only NFZ..-30 contactor relays need to respect the polarity on the coil terminals (A1+ and A2-). - 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.
ABB - Electrification

NFZ31E-30

Contact for Pricing

Overview

The ABB NFZ31E-30 is a 4-pole contactor relay designed for switching auxiliary and control circuits in industrial and automation applications. This unit features a 24 V DC electronic coil interface with built-in surge suppression, achieving a reduced holding coil consumption of up to 1.7 W. This low energy consumption allows for direct control by PLC outputs (≥ 250 mA 24 V DC) without the need for additional interface relays, simplifying panel design and reducing component count. Polarity must be observed on the coil terminals (A1+ and A2-) for DC control circuits, as only NFZ..-30 contactor relays require this configuration. The NFZ31E-30 is equipped with mechanically-linked auxiliary contacts compliant with Annex L of IEC 60947-5-1, indicated by the "Mechanically Linked" symbol on the relay. It has a general use rating of 600 V AC and a rated operational current of 50 A at ≤ 40 °C (AC-1). The contactor relay is suitable for applications in industrial automation, motor control, and lighting systems where reliable switching of auxiliary circuits is critical. A wide range of accessories is available to enhance flexibility in control panel configurations, including mounting options, auxiliary contacts, and timing modules. Manufacturer: ABB - Electrification. SKU: NFZ31E-30.
  • 4-pole contactor relay for auxiliary and control circuits
  • 24 V DC electronic coil with built-in surge suppression
  • Reduced holding coil consumption up to 1.7 W
  • Direct PLC control (≥ 250 mA 24 V DC) without interface relay
  • Mechanically-linked auxiliary contacts compliant with IEC 60947-5-1 Annex L
  • General use rating: 600 V AC
  • Rated operational current (AC-1): 50 A at ≤ 40 °C
  • Polarity sensitive coil terminals (A1+, A2-)

Specifications

Connection Type
Screw Terminal
Current Rating
50 A
Mounting Type
Panel Mount
Poles
4
Rated Control Circuit Voltage
DC Operation 24 V
Series
NFZ
Special Features
NFZ contactor relays are used for switching auxiliary and control circuits. NFZ contactor relays with coil 30 include a 24 V DC electronic coil interface with a built-in surge suppression, obtaining a reduced holding coil consumption up to 1.7 W for a low panel energy consumption and a direct control by PLC-output ? 250 mA 24 V DC, without need of additional interface relay. Only NFZ..-30 contactor relays need to respect the polarity on the coil terminals (A1+ and A2-). - 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
Screw Terminals
Voltage Rating
600 V AC
Package Dimensions (L x W x H)
4.409 IN x 3.78 IN x 1.969 IN
Package Dimensions (L x W x H)
11.1989 cm x 9.6012 cm x 5.0013 cm
Package Weight (Imperial)
1.050 L
Package Weight (Metric)
0.476 kg
GMD-16M DC240V 3W 1b EXP (GMD16M-30-01-UD-3W-S-E)

1270040900

GMD-16M DC240V 3W 1b EXP (GMD16M-30-01-UD-3W-S-E)
MT-63 34A 3D SCREW EXP (MT63-3D-34-S-E)

1311001000

MT-63 34A 3D SCREW EXP (MT63-3D-34-S-E)
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-20

BFB-20

CONTACT BLOCK BU BFB-20

Frequently Asked Questions

What is the coil voltage for the NFZ31E-30?

The coil voltage is 24V DC.

What is the rated operational current of the NFZ31E-30?

The rated operational current is 50A at ≤ 40°C for AC-1 applications.

Are the auxiliary contacts on the NFZ31E-30 mechanically linked?

Yes, the auxiliary contacts are mechanically-linked and compliant with IEC 60947-5-1 Annex L.

Is polarity important for the coil terminals on the NFZ31E-30?

Yes, polarity must be respected on the coil terminals (A1+ and A2-) for DC control circuits.

What is the general use rating for the NFZ31E-30?

The general use rating is 600V AC.

Does the NFZ31E-30 require additional interface relays for PLC control?

No, the NFZ31E-30 supports direct control by PLC outputs (≥ 250 mA 24V DC) without additional interface relays.

What is the holding coil consumption of the NFZ31E-30?

The holding coil consumption is up to 1.7W.

What accessories are available for the NFZ31E-30?

A wide range of accessories is available, including front or side-mounted auxiliary contact blocks.

How to Install the ABB NFZ31E-30 Contactor Relay

Step-by-step guide to mounting and wiring the NFZ31E-30 contactor relay

Estimated time: 15m

Tools needed:

Screwdriver, Wire strippers, Crimping tool

Supplies needed:

Mounting screws, Cable ties, Ferrules (if required)

  1. Mount the relay to the DIN rail

    Position the NFZ31E-30 on a standard 35mm DIN rail. Ensure the relay is securely snapped into place by applying even pressure until it clicks.

  2. Connect the control circuit wiring

    Connect the 24V DC control circuit to terminals A1 (positive) and A2 (negative), respecting polarity. Use a minimum wire gauge of 1.5mm² for reliable operation.

  3. Connect the load circuit wiring

    Connect the auxiliary load circuit to the 4-pole contacts (terminals 1-4). Ensure the wiring complies with local electrical codes and the relay's rated current (50A AC-1).

  4. Verify mechanical linkage

    Check that the mechanically-linked auxiliary contacts are properly aligned and labeled. Confirm compliance with IEC 60947-5-1 Annex L for safety-critical applications.

  5. Secure and test

    Secure all wiring with cable ties and verify that all connections are tight. Power up the system and test the relay operation using the PLC or control circuit.

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?

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.