Hager ASY450U 50A C Curve 100mA RCBO
The Hager ASY450U 50A C Curve 100mA RCBO integrates the functions of a circuit breaker and residual-current device with a 100mA setting. The neutral switches as part of the 3P+N assembly, with three overcurrent-protected poles.
Where 100mA Sensitivity Is Specified
The 100mA rating is not interchangeable with 30mA additional protection requirements. Type A sensitivity does not by itself establish suitability for every EV charger or power-electronic load; follow equipment instructions.
Current Rating and Trip Response
The 50A overcurrent setting and 100mA residual-current threshold must be checked against circuit design. 100mA residual-current sensitivity is different from the 30mA additional protection required for certain installations. This is a C-curve product; substituting D curve changes the instantaneous-trip band and requires design verification.
Technical Specifications – Hager ASY450U 50A C Curve 100mA RCBO
| Manufacturer | Hager |
|---|---|
| Part number | ASY450U |
| Device | Electronic three-phase RCBO with switched neutral |
| Poles | 3P+N; 3 overcurrent-protected phases |
| Rated current | 50A |
| Trip characteristic | C curve |
| Residual-current sensitivity | 100mA |
| Residual-current class | Type A |
| Rated breaking capacity | 10kA |
| Module width | 3 modules |
| Mounting | DIN rail; compatible Hager Invicta distribution arrangement (verify board model) |
Understanding B, C and D Trip Curves
B curve: typically 3–5 times rated current for instantaneous magnetic tripping, used for suitable low-inrush circuits. C curve: typically 5–10 times rated current, commonly specified for moderate inrush. D curve: typically 10–20 times rated current, considered for high-inrush loads such as some motors or transformers. Selected model: C curve. These bands describe magnetic tripping, not permissible continuous loading; the installed fault level and disconnection requirements must be verified.
The specific three-phase Hager range in this listing contains C- and D-curve models; no B-curve SKUs are included here.
Related Hager Three-Phase RCBOs
Compare ASY463U (63A, 100mA) or ASZ440U (C curve, 300mA) for a different rating or sensitivity.
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Explore the Hager 3 phase RCBO range, Hager three-phase distribution boards and Hager shop.
Install and test in accordance with the Hager instructions and applicable wiring regulations. Verify the product-specific datasheet and board compatibility before ordering.
