Eaton FAZ-Z8/4 supplementary protector - UL 1077
Part Number: FAZ-Z8/4
Quick Summary
The Eaton FAZ-Z8/4 supplementary protector provides precise overcurrent protection for industrial control circuits in panel assemblies. Nuisance trips on sensitive loads are common; this unit offers a tight instantaneous setting to reduce false trips and protect critical equipment. Certifications include IEC 60947-2, UL 1077, and CSA Std. C22.2 No.235, enabling safe operation across global installations. With four poles and standard terminals, it supports easy retrofits and scalable protection strategies in control panels, machines, and automation cabinets. This combination of compact form factor, robust short-circuit rating, and a 1-year warranty translates into lower maintenance costs and higher uptime for industrial facilities. Designed for Eaton FAZ series compatibility, it aligns with common control-panel layouts and wiring practices.
Product Information
Extended Description
FAZ-Z8/4 Eaton: Eaton FAZ supplementary protector,UL 1077 Industrial miniature circuit breaker - supplementary protector,8 A,15 kAIC,Four-pole,2-3X /n,Standard terminals,Z Curve
Product Name
Eaton FAZ supplementary protector
Catalog Number
FAZ-Z8/4
EAN
4015082791131
Product Length/Depth
3 in
Product Height
3 in
Product Width
3 in
Product Weight
1 lb
Warranty
1 year
Certifications
IEC 60947-2 UL 1077 CSA Std. C22.2 No.235
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
4 A
Trip Type
2-3X /n
Four-pole, cube-profile form factor with a 3 in dimension and standard terminals makes the FAZ-Z8/4 a space-efficient choice for panel protection. The compact footprint simplifies enclosure layouts and accelerates retrofit projects while maintaining clean, reliable wiring for industrial wiring and connectivity applications. The very low instantaneous setting protects sensitive loads, reducing nuisance trips and preventing equipment damage that interrupts production lines. For automation environments, this translates to smoother machine cycles and higher line uptime. With a 4 A rating and 15 kAIC short-circuit current rating, FAZ-Z8/4 delivers reliable fault isolation without compromising normal operation, while the four-pole design ensures balanced protection across conductors in motor controllers and PLC cabinets. The standard terminals simplify wiring, testing, and future upgrades, enabling quicker maintenance and easier replacement. Certified to IEC 60947-2, UL 1077, and CSA Std. C22.2 No.235, it supports global compliance and safe installation in multinational facilities. The catalog notes — very low instantaneous setting and Z Curve characteristics — enable tailored protection for sensitive loads. Weighing 1 lb in a 3 x 3 x 3 in envelope, this device fits compact panels and supports scalable protection strategies with minimal footprint. A 1-year warranty adds assurance for lifecycle maintenance and total cost of ownership in continuous-operation environments.
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FAQs
Begin by confirming compatibility with a four-pole distribution and standard terminals. Mount the FAZ-Z8/4 in the panel enclosure, connect each conductor to its designated terminal, and ensure correct orientation. Verify the circuit is de-energized during wiring, then test the trip function per the IEC 60947-2/UL 1077 guidelines. The four-pole design supports balanced protection across phases, simplifying replacement in existing panels.
The FAZ-Z8/4 is rated at 4 A with a 15 kAIC fault current rating. It features four poles and 2-3X trip characteristics, a 3 in product depth/width/height footprint, standard terminals, a weight of 1 lb, and a 1-year warranty. These specs support reliable isolation of faults while maintaining normal operation in panel and machine control applications.
Yes. The catalog notes specify a very low instantaneous setting to provide tighter protection for loads more sensitive to overcurrents. This helps minimize nuisance trips in delicate loads such as precision automation, robotics, and sensitive PLC-controlled equipment, while still delivering robust protection against sustained faults.
FAZ-Z8/4 carries IEC 60947-2, UL 1077, and CSA Std. C22.2 No.235 certifications. These approvals matter because they confirm compliance with global safety and performance standards, simplify cross-border procurement, and ensure reliable operation in industrial environments across different regulatory regimes.
With a 1-year warranty and a compact 3 x 3 x 3 in form factor, FAZ-Z8/4 reduces maintenance overhead and supports fast replacement. Its 4 A rating and 15 kAIC capacity lessen downtime due to faults, while standard terminals streamline replacements and upgrades in existing panels, contributing to lower total cost of ownership in continuous-operation facilities.