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3VA1225-5EF32-0AA0
circuit breaker 3VA1 IEC Frame 250 breaking capacity class M Icu=55 kA @ 415 V 3-pole, line protection TM240, ATAM, In=250 A overload protection Ir=175 A…250 A short-circuit protection Ii=5…10 x In nut keeper kit
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 3VA1225-5EF32-0AA0
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number (Market Facing Number) | 3VA1225-5EF32-0AA0 |
| Product Description | |
| Product family | 3VA Molded Case Circuit Breakers up to 1600 A, IEC |
| 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 | |
| insulation voltage / rated value | 800 V |
| operating voltage / at DC / rated value | 500 V |
| operating voltage / at AC / rated value | 690 V |
| power loss [W] / maximum | 57 W |
| power loss [W] / for rated value of the current / at AC / in hot operating state / per pole | 19 W |
| mechanical service life (operating cycles) / typical | 20 000 |
| electrical endurance (operating cycles) / at AC-1 / at 380/415 V | 8 000 |
| electrical endurance (operating cycles) / at AC-1 / at 690 V | 5 400 |
| ground-fault monitoring version | Without |
| WEEE (2012/19/EU) Take-Back Obligation | Yes |
| REACH Art. 33 Duty to inform according to the current list of candidates | not available |
| Net Weight | 1.585 kg |
Product Description
Key Features and Specifications:
- Rated Current (In): 250 A
- Adjustable Overload Protection (Ir): 175…250 A
- Short-Circuit Protection (Ii): 5…10 × In
- Breaking Capacity (Icu): 55 kA @ 415 V (Class M)
- Rated Operating Voltage (Ue): 690 V AC / 500 V DC
- Rated Insulation Voltage (Ui): 800 V
- Frame Size: 250
- Poles: 3
- Trip Unit Type: TM240 (Thermal-Magnetic)
- Protection Function: LI (Overload and Short-Circuit)
- Connection Type: Nut keeper kit
Technical Data:
- Number: 3VA1225-5EF32-0AA0
- Product Family: 3VA Molded Case Circuit Breakers up to 1600 A, IEC
- Product Brand: SENTRON
- Product Designation: Molded Case Circuit Breaker
- Design: Line protection
- Power Loss (max): 57 W
- Power Loss per Pole: 19 W
- Mechanical Durability: 20,000 operating cycles
- Mounting Type: Fixed-mounted
- Net Weight: 1.585 kg
- Commodity Code: 85362090
- EAN: 4042948809426
- UPC: 804766421518
- Lifecycle Status: Active Product
Applications:
- Line protection in industrial and commercial low-voltage power systems
- Reliable overload and short-circuit protection for distribution and feeder circuits
- Suitable for switchboards, control panels, and machinery requiring 3-pole isolation
- Ideal for installations demanding 55 kA breaking capacity and high operational safety
Summary
The Siemens 3VA1225-5EF32-0AA0 MCCB provides robust protection with a 55 kA breaking capacity and adjustable 175–250 A overload range. Featuring the TM240 trip unit and ATAM line protection, it ensures safe, efficient, and durable performance in demanding industrial and commercial environments. Compact, reliable, and versatile, it is an excellent choice for line protection in low-voltage power distribution systems.
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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