3VJ
Internal Accessories – 3VJ9218-0AN21
The Siemens 3VJ9218-0AN21 is an auxiliary
switch internal accessory designed for the 3VJ series Molded Case
Circuit Breakers (MCCB). It is used to provide reliable remote
indication of breaker ON/OFF position, enabling effective monitoring,
control, and integration with industrial automation systems.
This accessory is specifically designed for 3VJ11
(125A) and 3VJ12 (250A) frame sizes and is installed as an internal plug-in
component. It provides a 1 changeover contact output, which is used for
sending electrical status signals to PLCs, SCADA systems, control panels, and
annunciation systems. This helps improve system visibility and ensures accurate
breaker status feedback in real time.
The 3VJ9218-0AN21 is widely used in LT panels,
MCCs, PCCs, OEM systems, and industrial automation setups, where reliable
auxiliary signaling and operational monitoring are required.
🔹 Key Features
|
Parameter |
Specification |
|
Product
Series |
Siemens
3VJ Accessories |
|
Part
Number |
3VJ9218-0AN21 |
|
Product
Type |
Auxiliary
Switch |
|
Function |
Breaker
status indication |
|
Contact
Type |
1
Changeover Contact |
|
Compatible
Series |
3VJ11
/ 3VJ12 MCCB |
|
Mounting
Type |
Internal
accessory |
|
Application
Type |
Monitoring
& signaling |
|
Usage
Area |
LT
Panels, MCC, PCC, Automation Systems |
|
Construction |
Industrial
modular design |
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