The Siemens 3WJ1112-2AF62-1AA0 is a high-performance SINOVA 3WJ Air Circuit Breaker (ACB) designed for reliable protection, control, and isolation of low-voltage power distribution systems. This 1250A, 4 Pole, 50kA Air Circuit Breaker features a Manual Draw-Out (MDO) execution with an advanced ETU360WJ electronic trip unit providing LSING (Long Time, Short Time, Instantaneous, Ground Fault, and Neutral Protection) functions. Engineered for industrial and commercial electrical installations, it ensures superior protection against overloads, short circuits, and ground faults while delivering high operational safety and long service life. The breaker is ideal for LT panels, main incomers, distribution boards, generator synchronization panels, and critical power distribution applications.
• Siemens SINOVA 3WJ series Air Circuit Breaker (ACB)
• Part Number: 3WJ1112-2AF62-1AA0
• Rated Current: 1250A
• 4 Pole (4P) configuration
• Breaking Capacity: 50kA at 440V AC
• Manual Draw-Out (MDO) execution
• Advanced ETU360WJ electronic trip unit
• LSING protection functions available
• Reliable overload, short-circuit, and ground fault protection
• High-performance air circuit breaker for LV power distribution
• Suitable for industrial and commercial installations
• Draw-out design for easy maintenance and replacement
• High mechanical and electrical endurance
• Compact and rugged construction
• Auxiliary contacts (2NO + 2NC) included
• Enhanced operational safety and system reliability
• Compliant with IEC 60947-2 standards
• Ideal for LT panels, PCC panels, MCC panels, and power distribution systems
| Parameter | Specification |
|---|---|
| Product Series | Siemens SINOVA 3WJ |
| Part Number | 3WJ1112-2AF62-1AA0 |
| Product Type | Air Circuit Breaker (ACB) |
| Rated Current | 1250A |
| Number of Poles | 4 Pole (4P) |
| Breaking Capacity (Icu) | 50kA |
| Rated Operational Voltage | 440V AC |
| Frequency | 50/60 Hz |
| Mounting Type | Draw-Out |
| Operating Type | Manual Draw-Out (MDO) |
| Trip Unit | ETU360WJ Electronic Trip Unit |
| Protection Functions | LSING (Long Time, Short Time, Instantaneous, Ground Fault, Neutral Protection) |
| Insulation Voltage | 1000V |
| Auxiliary Contacts | 2NO + 2NC |
| Terminal Connection | Rear Horizontal Connection |
| Switching Function | Protection, Control & Isolation |
| Mechanical Life | High Endurance Industrial Design |
| Standard Compliance | IEC 60947-2 |
| Degree of Protection | As per panel enclosure |
| Country of Origin | India |
| Application | LT Panels, PCC Panels, MCC Panels, Generator Panels, Industrial Power Distribution Systems |
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