Contact for Pricing
Overview
- 8-pole design with permanently fixed 4-pole auxiliary contact block (mechanically linked per IEC 60947-5-1 Annex L)
- Universal coil interface: 24–250V AC (50/60Hz) or 12–250V DC—no coil changes required
- Direct PLC control (≥24V DC, 500mA) with reduced holding coil consumption
- Built-in surge protection; withstands short voltage dips/sags (SEMI F47-0706 compliant)
- Push-in Spring terminals for tool-free, vibration-resistant wiring connections
- Built-in surge protection
- Push-in Spring terminals for rapid and secure wiring
- Polarity sensitive for 12-20V DC coil operation (A1+, A2-)
Specifications
Connection Type | Push-in Spring terminals |
Frequency | 50/60 Hz |
Poles | 8 |
Rated Control Circuit Voltage | DC Operation 12 ... 20 V |
Series | NFZ |
Special Features | NFZ..K contactor relays are used for switching auxiliary and control circuits. NFZ contactor relays include an electronic coil interface accepting a wide control voltage Uc min. ... Uc max. Only four coils cover control voltages between 24...250 V 50/60 Hz or 12...250 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 NFZ contactor relays allow direct control by PLC-output ? 24 V DC 500 mA and obtain a reduced holding coil consumption. NFZ contactor relays withstand short voltage dips and voltage sags (SEMI F47-0706 compliance) between 24...250 V 50/60 Hz NFZ contactor relays have built-in surge protection and do not require additional surge suppressors. Only NFZ..-20 contactor relays need to respect the polarity on the coil terminals (A1+ and A2-). NFZ..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: 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). |
Terminal Type | Push-in Spring Terminals |
Voltage Rating | 24...250 V 50/60 Hz or 12...250 V DC |
Package Dimensions (L x W x H) | 4.37 IN x 3.583 IN x 1.772 IN |
Package Dimensions (L x W x H) | 11.0998 cm x 9.1008 cm x 4.5009 cm |
Package Weight (Imperial) | 0.840 L |
Package Weight (Metric) | 0.381 kg |
Frequently Asked Questions
What is the rated operational current at 40°C?
The NFZ71EK-20 has a rated operational current of 70A at ≤40°C for AC-1 duty.
What voltage range does the coil support?
The coil accepts 24–250V AC (50/60Hz) or 12–250V DC for universal compatibility.
What is the general use rating for 600V AC?
The NFZ71EK-20 has a general use rating of 60A at 600V AC.
Does this relay require external surge protection?
No. The NFZ71EK-20 includes built-in surge protection and does not require additional suppressors.
Does this relay support direct PLC output control?
Yes. It can be controlled directly by PLC outputs ≥24V DC at 500mA.
Is polarity important for DC control voltages?
Yes. For DC control voltages (12–20V), observe polarity on terminals A1+ and A2-.
What standards does the auxiliary contact block comply with?
The auxiliary contacts comply with Annex L of IEC 60947-5-1 and include the 'Mechanically Linked' symbol.
How to Install the ABB NFZ71EK-20 Contactor Relay
Step-by-step guide to mounting and wiring the NFZ71EK-20 contactor relay.
Estimated time: 15m
Tools needed:
Screwdriver, Wire stripper
Supplies needed:
DIN rail, Mounting screws, 12–250V AC/DC control wires, Load wires
- Mount the relay to the DIN rail
Position the NFZ71EK-20 on a standard 35mm DIN rail. Press firmly until it clicks into place.
- Connect control voltage wires
Insert control wires into the Push-in Spring terminals (A1 and A2). Push firmly to secure. For DC control, ensure A1 is positive (+) and A2 is negative (-).
- Connect load wires to auxiliary contacts
Insert load wires into the auxiliary contact terminals (11–14, 21–24, etc.). Push-in Spring terminals ensure reliable, vibration-resistant connections.
- Verify polarity and wiring
Double-check all connections for correct polarity (DC) and secure terminations. Ensure no loose wires before powering the system.
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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What technical support does ABB - Electrification offer?
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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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