3VJ Internal
Accessories – 3VJ9417-0AA21
The Siemens 3VJ9417-0AA21 is an alarm switch
(AL contact) internal accessory designed for the SINOVA 3VJ13 / 3VJ14
MCCB series (400 A / 630 A frame). It is used to provide a reliable
electrical signal indicating breaker trip or fault condition, enabling
remote monitoring and improved system diagnostics in low-voltage switchgear.
This accessory is installed inside the MCCB accessory
compartment and provides a changeover contact output, which can be integrated
with PLC systems, SCADA, control panels, and alarm indication circuits.
It helps operators quickly identify fault conditions without physically
checking the breaker, improving safety and operational efficiency.
The 3VJ9417-0AA21 is widely used in LT panels,
MCCs, PCCs, industrial switchboards, OEM panels, and power distribution systems,
where real-time fault indication and remote status monitoring are required.
🔹 Key Features
|
Parameter |
Specification |
|
Product
Series |
Siemens
SINOVA 3VJ Accessories |
|
Model
Number |
3VJ9417-0AA21 |
|
Product
Type |
Alarm
Switch (Internal Accessory) |
|
Compatible
Series |
3VJ13
/ 3VJ14 MCCB |
|
Frame
Range |
400
A – 630 A |
|
Contact
Type |
1
Changeover Contact |
|
Function |
Alarm
/ trip indication |
|
Mounting
Type |
Internal
accessory compartment |
|
Application
Type |
Monitoring
& signal output |
|
Usage
Area |
LT
Panels, MCC, PCC, OEM Panels |
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