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3VA1225-1AA42-0AA0
switch disconnector 3VA1 IEC frame 250 3-pole SD100, In=250A without overload protection w/o short-circuit protection nut keeper kit
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 3VA1225-1AA42-0AA0
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number (Market Facing Number) | 3VA1225-1AA42-0AA0 |
| Product Description | |
| Product family | SENTRON 3VA Switch Disconnectors in MCCB design up to 250 A |
| Product Lifecycle (PLM) | Active Product |
| Price data | |
| Region Specific PriceGroup / Headquarter Price Group | 12P / 53J |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Materials | None |
| Metal Factor | LOA—– |
| Additional Product Information | |
| EAN | 4042948800393 |
| UPC | 804766421426 |
| Commodity Code | 85362090 |
| LKZ_FDB/ CatalogID | LV10.1 |
| Product Group | 5375 |
| Group Code | P360 |
| Country of origin | Czech Republic |
| Compliance with the substance restrictions according to RoHS directive | Since: 01.06.2012 |
| Product class | B: return restricted, please contact your Siemens partner/contact |
| WEEE (2012/19/EU) Take-Back Obligation | Yes |
| REACH Art. 33 Duty to inform according to the current list of candidates | not available |
| SCIP number | not available |
Product Description
Key Features and Specifications:
- Rated Current (In): 250 A
- Rated Insulation Voltage (Ui): 800 V
- Rated Operating Voltage (Ue): 690 V AC / 600 V DC
- Rated Impulse Withstand Voltage (Uimp): 8 kV
- Poles: 4
- Frame Size: 250
- Mounting Type: Fixed mounting
- Power Loss (max): 57 W
- Mechanical Durability: 20,000 operating cycles
- Connection Type: Nut keeper kit
- Overload Protection: Not available
- Short-Circuit Protection: Not available
Technical Data:
- Number: 3VA1225-1AA42-0AA0
- Product Family: SENTRON 3VA Switch Disconnectors in MCCB design up to 250 A
- Product Brand: SENTRON
- Product Designation: Molded Case Circuit Breaker (Switch Disconnector type)
- Product Version: General applications
- Commodity Code: 85362090
- EAN: 4042948800393
- UPC: 804766421426
- Net Weight: 1.982 kg
- Country of Origin: Czech Republic
- Lifecycle Status: Active Product
Applications:
- Safe and reliable isolation of electrical circuits in industrial and commercial environments
- Ideal for use as a main or maintenance switch in control panels and power distribution systems
- Suitable for safety and emergency-off switching applications
- Perfect for systems that require manual disconnection but do not need integrated protection functions
Summary
The Siemens 3VA1225-1AA42-0AA0 switch disconnector is a dependable and versatile device designed for isolation and safety switching tasks. With a 4-pole MCCB design, 250 A rated current, and up to 690 V operating voltage, it provides efficient and durable performance in industrial low-voltage systems. Its robust construction and suitability for multiple switching functions make it a reliable choice for safe power disconnection and system maintenance.
Frequently Asked Questions
What is the full form of MCCB in Siemens?
The full form of MCCB is Molded Case Circuit Breaker. A Siemens MCCB is designed to handle high electrical currents, often up to 1000A, making it highly reliable for industrial and commercial applications. These breakers provide advanced protection against overloads and short circuits, ensuring the safety of large electrical systems.
What is the difference between a Molded Case Circuit Breaker (MCB) and an MCCB?
The main difference between an MCB (Miniature Circuit Breaker) and an MCCB (Molded Case Circuit Breaker) lies in their capacity and applications.
✅MCBs are generally used for low-power applications, with a short-circuit breaking capacity of up to 10–15 kA. They are best suited for residential and light commercial systems.
✅ MCCBs, on the other hand, are designed for medium to high-power applications, with a breaking capacity ranging from 15 kA up to 100 kA and current ratings up to 1000A. This makes them ideal for industrial environments where large electrical loads need reliable protection.
Which company circuit breaker is best?
✅ In 2025, the leading circuit breaker brands include Siemens, Schneider Electric, ABB, Eaton, and Legrand. Among them, Siemens MCCBs—especially the Sentron 3VA series—stand out for safety, durability, and advanced circuit protection in industrial and commercial applications.
What breakers work in a Siemens box?
Siemens QT, QP, QAF, and QPF breakers fit Siemens panels. However, not all breakers are interchangeable—e.g., a QT breaker cannot replace a QP breaker. Always check compatibility before replacing.
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