Siemens SENTRON ACB – Microprocessor Based Trip Unit – 3WA1240-3AF41-4EA4
The Siemens 3WA1240-3AF41-4EA4 is a SENTRON 3WA
series Air Circuit Breaker (ACB) designed for advanced protection,
switching, and monitoring of low-voltage power distribution systems. It
is widely used in main LT panels, PCC switchboards, industrial plants,
commercial buildings, infrastructure projects, utilities, and critical power
applications where intelligent protection and reliable operation are
essential.
This ACB is equipped with a microprocessor-based
electronic trip unit that provides accurate protection against overload,
short-circuit, and fault conditions. The intelligent trip unit enables
selective coordination, system diagnostics, real-time monitoring, and enhanced
electrical safety for modern power distribution networks.
The SENTRON 3WA platform combines modular
construction with digital-ready functionality, making it suitable for smart
energy management and demanding industrial electrical installations.
Key Features
|
Parameter |
Specification |
|
Product Model |
3WA1240-3AF41-4EA4 |
|
Brand |
Siemens |
|
Series |
SENTRON 3WA |
|
Product Type |
Air Circuit Breaker (ACB) |
|
Trip Unit Type |
Microprocessor-based electronic trip unit |
|
Protection Functions |
Overload, short-circuit, fault protection |
|
Installation Type |
Fixed / draw-out execution dependent |
|
Number of Poles |
3 Pole / 4 Pole variant dependent |
|
Rated Operational Voltage |
Up to 690 V AC |
|
Frequency |
50/60 Hz |
|
Application |
Main LT power distribution |
|
Communication Capability |
Intelligent monitoring support |
|
Standards |
IEC 60947-2 |
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