Series Overview
Series Overview
C120 is a series of small circuit breakers with higher rated current. Common rated currents cover 63A, 80A, 100A and 125A, and have different pole numbers and B/C/D curves. It often appears in industrial power distribution and larger load branches, so it has continued value in overseas MRO searches.
Part-number Structure & Selection Notes
A C120 reference is defined by pole count, trip curve, rated current and breaking capacity. For example, A9N18469 identifies a C120H, 3P, 100A, C-curve configuration. Icu/Icn values also vary with system voltage, so confirm the applicable standard and prospective short-circuit current.
Models in This Series
The table lists commonly requested models and key specifications. If your required model is not shown, send the complete ordering code for verification.
| Reference | commercial model / configuration | poles | rated current / curve |
|---|---|---|---|
| A9N18424 | C120H | 3P | 80A / B |
| A9N18426 | C120H | 3P | 125A / B |
| A9N18467 | C120H | 3P | 63A / C |
| A9N18469 | C120H | 3P | 100A / C |
| A9N18445 | C120H | 1P | 63A / C |
| A9N18446 | C120H | 1P | 80A / C |
| A9N18456 | C120H | 2P | 63A / C |
| A9N18457 | C120H | 2P | 80A / C |
| A9N18478 | C120H | 4P | 63A / C |
| A9N18479 | C120H | 4P | 80A / C |
| A9N18480 | C120H | 4P | 100A / C |
| A9N18481 | C120H | 4P | 125A / C |
Specifications must be confirmed against the applicable official datasheet and ordering information. Regional variants, suffixes and configurations are not automatically interchangeable.
FAQ
Frequently Asked Questions
How do I confirm the complete part number for Acti9 C120?
A C120 reference is defined by pole count, trip curve, rated current and breaking capacity. For example, A9N18469 identifies a C120H, 3P, 100A, C-curve configuration. Icu/Icn values also vary with system voltage, so confirm the applicable standard and prospective short-circuit current.
What are the main differences between A9N18424 and A9N18426?
rated current / curve: A9N18424 is 80A / B, A9N18426 is 125A / B. Verify the complete ordering code and project conditions before selection or replacement; the series name alone is not sufficient.
Which specifications matter most when selecting Acti9 C120?
Key specifications to verify are commercial model / configuration, poles, rated current / curve. Match them against the equipment nameplate, drawing or original model, and retain every suffix, option and regional code in the complete ordering reference.
Why is the complete part number required when requesting a quote for Acti9 C120?
Models within Acti9 C120 may differ in electrical ratings, construction, interfaces or accessories. For example, A9N18424, A9N18426, A9N18467 are distinct configurations and cannot be interchanged on the series name alone. Using the complete part number substantially reduces mismatch risk.
Cannot find the complete part number?
Send the legacy part number, nameplate photo or application details and we will help identify the correct item.
