Noark
RCCB Noark 108362 Ex9L-N 4P 40 A 30 mA Type A
RCCB Noark 108362 Ex9L-N 4P 40 A 30 mA Type A
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Delivery in 10-20 daysProtection deviceAC sideNoark
RCCB Noark 108362 Ex9L-N 4P 40 A 30 mA Type A
The Noark 108362 is a residual current circuit breaker (RCCB) from the Ex9L-N range in a four-pole version, with rated current 40 A and rated residual current 30 mA Type A. It takes up 4 modules on the DIN rail and has a rated conditional short-circuit current of 6 kA.
It is installed in three-phase distribution boards (3 phases + neutral) and, thanks to the high-sensitivity 30 mA threshold, it offers additional protection of people against direct contact as well as protection against indirect contact. Type A guarantees tripping even with pulsating unidirectional leakage currents, those typical of inverters, switching power supplies, washing machines and appliances with power electronics; this is why it is the minimum recommended choice in boards supplying electronic loads. Operation is independent of the mains voltage. Being a pure residual current device, it does not offer protection against overload and short circuit: it must be coordinated with miniature circuit breakers downstream or upstream.
Key features
Three-phase residual current protectionFour poles for 3P+N networks, with simultaneous interruption of all live conductors in the event of an earth fault.
High sensitivity 30 mAA tripping threshold that ensures additional protection of people against direct contact.
Type ADetects alternating leakage currents and the pulsating unidirectional ones produced by loads with power electronics.
Voltage-independent operationThe electromagnetic principle guarantees tripping even if the neutral is lost or the voltage is reduced.
6 kA short-circuit withstandRated conditional short-circuit current of 6 kA, coordinated with the back-up protection.
Test buttonThe T button allows periodic checking of the tripping mechanism, recommended on a monthly basis.
Technical specifications
| Feature | Value |
|---|---|
| Product code | 108362 |
| Device type | Modular pure residual current circuit breaker (RCCB), Ex9L-N series |
| System side | Alternating current (AC) |
| Number of poles / phases | 4 poles (three-phase 3P+N) |
| Nominal current | 40 A |
| Rated residual current | 30 mA (0,03 A) |
| RCD type | Type A |
| Rated voltage (Ue) | 400 V AC (230 V phase-to-neutral) |
| Rated frequency | 50 Hz |
| Conditional short-circuit current | 6 kA |
| Miniature circuit breaker (MCB) | Not included (pure RCD, to be combined with MCBs) |
| Number of DIN modules | 4 |
| Flush-mounting depth | 72 mm |
| Protection rating | IP20 |
| Mounting | 35 mm DIN rail |
| Dimensions | 79 × 88 × 72 mm |
| Weight | 0.39 kg |
| Standards | IEC/EN 61008-1 (residual current devices without integral overcurrent protection) |
Installation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.