High-risk residential buildings
ETM1-63AFD is an Arc Fault Detection Device (AFDD) with an integrated miniature circuit breaker (MCB), engineered to mitigate electrical fire risks by detecting hazardous series and parallel arc faults. It offers a 10 kA short-circuit breaking capacity and supports rated currents up to 63 A, making it suitable for residential, commercial, and light industrial installations.
ETM1-63AFD features an LED arc-fault indicator for clear status feedback. Its compact 36 mm width saves distribution board space while maintaining comprehensive protection against arc faults, overloads, and short circuits.


| Technical Data | ||
| Standard | IEC/EN 60898-1,IEC/EN62026 | |
| Protection | Arc fault protection | |
| Overload protection,Short-circuit protection | ||
| Type of trip | Overload and short circuit | Thermal-magnetic |
| Arc fault | Serial arcing fault | |
| Parallel aring fault | ||
| Grounding arc fault | ||
| No.of poles | 1P+N(Neutral unswitched) | |
| Rated insulation voltage(Ui) | 500V | |
| Rated voltage(Ue) | 230/240V | |
| Rated currents(In) | 6,10,16,20,25,32,40,50,63A | |
| Rated frequency | 50/60Hz | |
| Rated short-circuit capacity(lcn) | ETM1-63AFD:6kA | |
| ETM1-63HAFD:10kA | ||
| Energylimiting class | 3 | |
| Rated impulse withstand voltage(Uimp)(1.2/50μs) | 4kV | |
| Dielectric test voltage | 2KV(50/60Hz,1 min.) | |
| Thermal tripping characteristics | 1.13In No tripping within an hour; 1.45In Tripping within an hour | |
| Instantaneous tripping characteristics | B:3In-5In; C:5In-10ln | |
| Electrical life | 4,000 Cycles | |
| Mechanical life | 10,000 Cycles | |
| Contact position indication | green OFF/red ON | |
| Arc detection button | Yes | |
| Arc fault indicator | Green:Normal | |
| Red:Fault | ||
| Protection degree | IP20 | |
| Ambient temperature | -25℃~+55℃ | |
| Storage temperature | -30℃~+70℃ | |
| Terminal connection type | Cable/Pin-type/Fork-type busbar | |
| Max.terminal size for cable | 16mm²flexible/25mm²rigid | |
| Max.tightening torque | 2.5N.m | |
| Installation | Mounting on 35mm DIN rail | |
| Incoming method | From bottom | |



