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A9F44102 and A9F18102 are two fully compatible, directly interchangeable miniature circuit breakers from Schneider Electric’s Acti9 series. Their core difference lies in product series iteration (iC60N → iC65N) and order code numbering, while their electrical parameters and mounting dimensions are almost identical.
- Model and Core Parameter Comparison
| Item | A9F44102 | A9F18102 |
| Series | iC60N (legacy version) | iC65N (new/replacement version) |
| Full Specification | iC60N 1P C2A | iC65N 1P C2A |
| Number of Poles | 1P (single-pole) | 1P |
| Rated Current | 2A | 2A |
| Tripping Curve | Type C (5~10In) | Type C |
| Breaking Capacity | 6kA (Icn, 230V) | 6kA (Icn) / 50kA (Icu) |
| Rated Voltage | 230/400V AC | 230/400V AC |
| Protection Degree | IP20 | IP20 |
| Mounting | DIN rail (18mm width) | DIN rail (18mm width) |
| Dimensions (W×H×D) | 18×85×78.5mm | 18×94×78.5mm |
- Key Differences
- Product Iteration
A9F44102: Legacy iC60N series, being phased out gradually.
A9F18102: Upgraded iC65N series, the official replacement for A9F44102.
Interchangeability: 100% compatible, can be replaced directly without rewiring or adjusting installation space.
- Minor Performance Differences
Breaking Capacity: The ultimate breaking capacity (Icu) of iC65N (A9F18102) reaches 50kA, higher than iC60N, providing stronger safety performance.
Physical Height: iC65N is 94mm high, slightly taller than the 85mm of iC60N, but the mounting width and depth remain the same.
- Order Code Explanation
A9F: Fixed prefix for the Acti9 series
44: Represents the iC60N series
18: Represents the iC65N series
1: 1 pole (1P)
02: Rated current 2A
- Replacement and Selection Recommendations
Direct Replacement: A9F44102 (iC60N 1P 2A) → A9F18102 (iC65N 1P 2A)
Higher Breaking Capacity: For 10kA breaking capacity, select iC65H 1P C2A (A9F27102)
Application: Both models are suitable for standard 2A load protection scenarios such as lighting circuits and control circuits.
