Constructed for demanding automation environments, this three-pole Eaton miniature circuit breaker delivers reliable UL 489 branch protection. The integrated B-curve thermal-magnetic trip unit is tailored for resistive loads and applications with minimal inrush current. The compact footprint allows the device to mount onto standard 35mm DIN rail systems, optimizing layout efficiency in industrial control panels. It accepts 18-6 AWG wiring via secure box lug terminals.
Auxiliary Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Busbar System
Standards
CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval
ABS, CE, CSA, cULus, DNV, IEC, Lloyd's, UL, VDE
Temp Rating
-25C to 75C
Product FAQs
8 answers
What is the trip curve characteristic of the FAZ-B15/3-NA?
This breaker features a B-curve thermal magnetic trip profile. The magnetic trip point activates between 3 and 5 times the rated current, making it ideal for resistive loads or circuits with very low inrush currents.
Is the Eaton FAZ-B15/3-NA rated for branch circuit protection?
Yes, it is a UL 489 listed miniature circuit breaker. This means it is fully rated for primary branch circuit protection in North American applications, unlike UL 1077 supplementary protectors.
Can the FAZ-B15/3-NA be reverse fed?
Yes, this Eaton FAZ-NA series circuit breaker supports reverse feeding. Power can be supplied to either the line or load side terminals without affecting the protection characteristics.
What size DIN rail is required for mounting this breaker?
The FAZ-B15/3-NA mounts directly onto standard 35mm DIN rail systems commonly used in industrial control panels and automation environments.
How many conductors can be terminated in the box lugs?
The box lug terminals are designed to accept either a single conductor from 18 to 6 AWG, or two conductors from 18 to 10 AWG, allowing for flexible wiring configurations in control panels.
Is this breaker suitable for switching lighting loads?
Yes, Eaton FAZ-NA breakers rated 20A and below, including this 15A model, carry an SWD (Switching Duty) rating. This makes them suitable for switching fluorescent lighting loads on a regular basis.
Is the FAZ-B15/3-NA a current limiting breaker?
Yes, the FAZ-NA series utilizes a current limiting design. This provides fast short circuit interruption, reducing the let-through energy that can damage downstream circuit components.
Does this breaker have a trip-free mechanism?
Yes, it features a trip-free design. The breaker will trip internally during an overcurrent or short circuit event even if the handle is physically held in the ON position.
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Reviews
Review summary
Customers rate this product 2.0 out of 5 based on 2 reviews.