Auxiliaries and Accessories
⚡ Acti 9 Indication & Tripping Auxiliaries
Acti 9 indication and tripping auxiliaries
are modular add‑on devices that provide remote status indication, fault signalling, and remote tripping
for Acti 9 MCBs, RCCBs, and RCBOs.
They enhance monitoring, control, and safety
in commercial and industrial panels.
🟦 What These Auxiliaries Do
- Indicate breaker status — ON/OFF/TRIPPED signals
- Provide remote signalling to BMS/SCADA
- Enable remote tripping via shunt or undervoltage release
- Improve safety & diagnostics with clear fault outputs
🟧 Key Auxiliary Types
- OF Auxiliary Contact — open/closed position indication
- SD Fault‑Signal Contact — trips only on fault (overload/short‑circuit)
- OF+SD Combined — position + fault indication in one module
- MX Shunt Trip — remote tripping via external command
- MN Undervoltage Release — trips when supply voltage drops or is cut
- MNx Emergency‑Stop Variant — safety‑rated undervoltage release
🟨 Typical Applications
- BMS/SCADA integration — remote monitoring of breaker status
- Safety interlocking — emergency‑stop circuits, machine safety
- Load shedding & control — remote trip for demand management
- Fault diagnostics — identify overload vs manual OFF
🟩 Position in the Acti 9 Ecosystem
- MCBs (iC60) — overcurrent protection
- RCCBs (iID) — leakage protection
- RCBOs (iDPN Vigi / Vigi iC60) — combined protection
- Auxiliaries — monitoring, signalling, remote control
Auxiliaries = the intelligence layer that adds monitoring and control to Acti 9 breakers.
⭐ One‑line summary
Acti 9 indication and tripping auxiliaries provide remote status, fault signalling, and remote‑trip capability, enhancing monitoring, safety, and automation in modern electrical panels.



