Key Features
- Model: 3KJ1126-4AA20-0AA0
- Brand: SINOVA
- Type: On-Load Changeover Switch
- Manual operation with rotary handle
- Door-coupling front operating mechanism
- Switch positions: I ON – O OFF – II ON
- 4-pole design for complete circuit isolation
- Rated operational current: 63A
- Rated insulation voltage: 1000V AC
- Suitable for main switching and changeover applications
- Robust mechanical life of 15,000 operating cycles
- Compact and reliable construction
- Designed for industrial and commercial power systems
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | SINOVA |
| Model Number | 3KJ1126-4AA20-0AA0 |
| Product Type | On-Load Changeover Switch |
| Operation | Manual |
| Number of Poles | 4 Pole |
| Rated Operational Current | 63A |
| Rated Insulation Voltage | 1000V |
| Overvoltage Category | III |
| Pollution Degree | 3 |
| Switch Positions | I-0-II |
| Operating Mechanism | Door-Coupling Rotary Handle |
| Front Operating Mechanism | Yes |
| Motor Drive | No |
| Mechanical Life | 15,000 Operations |
| Power Loss per Pole | 1.5W |
| Total Power Loss | 6W |
| Protection Class | IP00 |
| Auxiliary Contacts | 2NO + 2NC |
| Switch Size | 1 |
Applications
The SINOVA 3KJ1126-4AA20-0AA0 changeover switch is widely used in:
- Generator changeover panels
- Industrial distribution boards
- Motor control centers (MCC)
- Power control panels
- Commercial buildings
- Manufacturing facilities
- Electrical substations
- Renewable energy systems
- UPS bypass arrangements
- Emergency power transfer systems
Advantages
Reliable Source Transfer
Provides safe and dependable switching between two power sources without interrupting critical operations.
Enhanced Safety
The clear I-0-II position indication and door-mounted rotary handle improve operator safety and ease of use.
Long Service Life
Designed to withstand up to 15,000 switching operations, ensuring long-term reliability.
Multi-Purpose Functionality
Can be used as:
- Main Switch
- Switch Disconnector
- Emergency OFF Switch
- Safety Isolation Switch
Industrial-Grade Construction
Built to meet demanding industrial environments with high insulation ratings and robust switching performance.
Why Choose SINOVA 3KJ1126-4AA20-0AA0?
The SINOVA 3KJ1126-4AA20-0AA0 combines operational reliability, safety, and durability in a compact design. Its 63A current rating, 4-pole isolation capability, and door-coupling rotary operation make it an ideal choice for generator transfer panels, industrial control systems, and electrical distribution applications requiring secure source selection and isolation.
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