Eaton FAZ-Z3/4 Supplementary Protector - UL 1077
Part Number: FAZ-Z3/4
Quick Summary
Eaton FAZ-Z3/4 supplementary protector protects sensitive loads by limiting overcurrents in industrial control panels. Many engineers face nuisance trips and insufficient protection, leading to downtime and elevated maintenance costs. Certifications include UL 1077, CSA Std. C22.2 No.235, and IEC 60947-2, providing cross‑region compliance for global assemblies. The four-pole design with standard terminals supports modular panel wiring and easier field installation, reducing commissioning time. This device also enables tighter protection settings for sensitive loads, helping prevent nuisance trips while maintaining uptime. With a compact 3 x 3 x 3 in footprint and a 1 lb weight, it integrates neatly into modern control architectures, delivering reliable performance in wiring and connectivity applications.
Product Information
Extended Description
FAZ-Z3/4 Eaton: Eaton FAZ supplementary protector,UL 1077 Industrial miniature circuit breaker - supplementary protector,3 A,15 kAIC,Four-pole,2-3X /n,Standard terminals,Z Curve
Product Name
Eaton FAZ supplementary protector
Catalog Number
FAZ-Z3/4
EAN
4015082791100
Product Length/Depth
3 in
Product Height
3 in
Product Width
3 in
Product Weight
1 lb
Warranty
1 year
Certifications
CSA Std. C22.2 No.235 UL 1077 IEC 60947-2
Catalog Notes
Very low instantaneous setting to provide tighter protection for loads more sensitive to overcurrents.
Number of poles
Four-pole
Terminals
Standard
Amperage Rating
3 A
Trip Type
2-3X /n
Feature: Four-pole protection with standard terminals. Business Impact: Safer, more reliable control circuits with simpler installation and reduced wiring errors. Application: Ideal for 3‑phase control panels and instrument enclosures where shared neutrals are present. Feature: 3 A amperage rating and 15 kAIC short-circuit capability. Business Impact: Appropriately protecting low‑current loads while withstanding common fault events without nuisance trips. Application: Small motors, relays, and PLC circuits in manufacturing lines. Feature: Very low instantaneous setting (catalog note). Business Impact: Tightens protection for sensitive loads, reducing equipment stress and extending component life. Application: Precision equipment and delicate control circuits in automated lines. Feature: UL 1077, CSA, and IEC 60947-2 certifications. Business Impact: Compliance across North America and Europe simplifies procurement and minimizes regulatory risk. Application: Global panel builds in automotive, food & beverage, and general manufacturing. Feature: Compact footprint (3 in × 3 in × 3 in) and standard terminals. Business Impact: Saves panel space and accelerates installation, enabling denser control architectures. Application: Retrofit projects and new builds with limited enclosure space.
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FAQs
FAZ-Z3/4 is a four-pole device with standard terminals, designed for 3‑phase systems commonly found in control panels. The four-pole configuration helps keep line and neutral conductors synchronized, reducing wiring errors during installation and simplifying field modifications. Its compact footprint also fits tighter enclosures without compromising accessibility for maintenance.
FAZ-Z3/4 carries UL 1077 and IEC 60947-2 certification, along with CSA Std. C22.2 No.235, ensuring compliance for North American and international panel builds. This alignment supports safe operation, reliable interrupt performance, and streamlined procurement across multi-region projects, helping avoid nonconformance delays during audits or product qualification.
Yes. The device is purpose-built for sensitive control circuits, offering a very low instantaneous setting to tighten protection. Its 3 A rating and 15 kAIC withstand capability provide selective protection for delicate sensors, PLC I/O, and small motors, reducing nuisance trips while preserving uptime in demanding manufacturing environments.
Routine checks should verify mechanical integrity, terminal torque, and clearance within the enclosure. With a 1-year warranty and robust UL/IEC certification, the unit offers predictable performance, but periodic inspection during PM cycles is recommended to ensure no corrosion at terminals and that trip settings remain within spec for the protected load.
The FAZ-Z3/4 reduces downtime from nuisance trips thanks to tighter protection for sensitive loads, lowers wiring and installation time with standard terminals, and simplifies cross‑region compliance via established certifications. These factors translate to lower maintenance costs, faster commissioning, and improved panel reliability over the device’s lifecycle.