3VA1120-4EE36-0AA0
Molded case circuit breaker (MCCB) 3VA1, 150 / 160 A, TM220 ATFM, 3 pole, Connection to cables
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 3VA1120-4EE36-0AA0
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
İlgili ürünler
| Product | |
| Article Number (Market Facing Number) | 3VA1120-4EE36-0AA0 |
| Product Description | circuit breaker 3VA1 IEC Frame 160 breaking capacity class S Icu=36 kA @ 415 V 3-pole, line protection TM220, ATFM, In=20 A overload protection Ir=14 A…20 A short-circuit protection Ii=16 x In terminal connection |
| Product family | 3VA Molded Case Circuit Breakers up to 1600 A, IEC |
| Product Lifecycle (PLM) | PM300:Active Product |
| Price data | |
| Region Specific PriceGroup / Headquarter Price Group | 12P / 1CB |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Materials | None |
| Metal Factor | LOA—– |
| Additional Product Information | ||
| EAN | 4042948821275 | |
| UPC | 804766427275 | |
| Commodity Code | 85362010 | |
| 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: 01.04.2014 | |
| Product class | C: products manufactured / produced to order, which cannot be reused or re-utilised or be returned against credit. | |
| WEEE (2012/19/EU) Take-Back Obligation | Yes | |
| REACH Art. 33 Duty to inform according to the current list of candidates | ||
| SCIP number | 65cb3243-fc84-4b1b-8853-98c9e9559dfe | |
Product Description
3VA1120-4EE36-0AA0
The Siemens 3VA1120-4EE36-0AA0 is a molded case circuit breaker (MCCB) designed for effective protection in medium-scale electrical systems. Its compact frame size and advanced protection features make it suitable for applications requiring lower current capacity and high reliability.

Key Features and Specifications:
- Frame Size: 160 A (IEC standard)
- Rated Current (In): 20 A
Breaking Capacity:
- Icu (Ultimate Breaking Capacity): 36 kA at 415 V, providing sufficient fault current interruption capability for safe operation in moderate power environments.
- Poles: 3-pole configuration, ideal for three-phase systems, offering comprehensive protection for phase conductors.
Protection Features:
- Overload Protection (Ir): Adjustable between 14 A and 20 A, ensuring the system is safeguarded from prolonged overcurrent conditions.
- Short-Circuit Protection (Ii): Set at 16x In, delivering fast response to short-circuit faults to prevent equipment damage.
- Protection Type: Line protection TM220 with ATFM (Advanced Trip Function Mechanism), providing precision control and reliability in tripping.
- Connection Type: Terminal connection for secure and easy installation.
Compliance & Product Lifecycle:
- Product Lifecycle Management (PLM): PM300 – Active Product, indicating that the product is actively sold and supported by Siemens.
Summary
This Siemens 3VA1 MCCB offers reliable protection with a lower current rating, making it ideal for industrial and commercial applications where both overload and short-circuit protection are critical. The device ensures stable operation while protecting valuable electrical equipment.
Frequently Asked Questions
What is Siemens Sentron?
Siemens Sentron is a reliable power distribution solution designed to improve safety and efficiency in electrical systems. A Siemens Sentron power center combines a primary breaker disconnect, a dry-type shielded transformer, a secondary breaker disconnect, and a secondary power panel in one compact package. This design saves time, space, and installation costs compared to wiring and assembling components separately.
The Siemens Sentron 3VA series MCCBs (Molded Case Circuit Breakers) are part of the advanced Siemens MCCB product family, offering high performance, durability, and flexible applications for industrial and commercial power distribution. By choosing Siemens MCCBs, including the innovative SENTRON 3VA, users benefit from reliable circuit protection, optimized space utilization, and simplified installation.
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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