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3WA1120-3AA02-0AA0
Air Circuit Breaker 3WA1, FS 1, -, 3 pole fixed
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 3WA1120-3AA02-0AA0
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number | 3WA1120-3AA02-0AA0 |
| Product Description | Non-automatic circuit breaker Fixed-mounted version, IEC 60947-2, frame size 1, 3-poles, In=2000A up to 690V AC 50/60Hz, breaking capacity S Icc=66/50kA at 500/690V, without electr. trip unit ETU, rear connection horizontal, without Com & metering function Manual operating mechanism with mechanical closing, without Spring charging motor, Ready-to-close signal. switch, Auxiliary switches 2NO+2NC, without Closing coil (CC), manual operating mechanism with mechanical closing, without Remote trip alarm reset coil (RR), without 2nd shunt trip, without 1st Shunt trip |
| Product family | 3WA1 Air Circuit Breakers/Non-Aut. Air Circ. Br. up to 6300 A (AC), IEC |
| Product Lifecycle (PLM) | PM300:Active Product |
| Price data | |
| Price Group | 12O |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Material | see also metal factor (further details are available on the help page) |
| Metal Factor | LAO—– |
| Additional Product Information | ||
| EAN | Not available | |
| UPC | Not available | |
| Commodity Code | 85362090 | |
| LKZ_FDB/ CatalogID | LV10 | |
| Product Group | X01C | |
| Group Code | P360 | |
| Country of origin | Czech Republic | |
| Compliance with the substance restrictions according to RoHS directive | Since: 10.07.2019 | |
| Product class | B: return restricted, please contact your Siemens partner/contact | |
| WEEE (2012/19/EU) Take-Back Obligation | No | |
| REACH Art. 33 Duty to inform according to the current list of candidates | ||
| SCIP number | Not available | |
Product Description
3WA1120-3AA02-0AA0
The Siemens 3WA1120-3AA02-0AA0 is a fixed-mounted, non-automatic circuit breaker designed for high-current applications requiring reliability and simplicity in power management. Built to meet IEC 60947-2 standards, it is ideal for demanding environments requiring robust and effective circuit protection.
Key Features and Specifications:
- Number: 3WA1120-3AA02-0AA0
- Circuit Breaker Type: Non-automatic.
- Mounting Type: Fixed-mounted.
- Frame Size: 1.
- Poles: 3-pole design.
- Rated Current (In): 2000 A.
- Voltage Rating: Operates up to 690 V AC, 50/60 Hz.
Breaking Capacity (Icc):
- 66 kA at 500 V.
- 50 kA at 690 V.
Features and Functionalities
Trip Unit:
- No electronic trip unit (ETU) included.
- Ideal for manual circuit-breaking operations.
Connections:
- Rear horizontal connection for secure and flexible installation.
Manual Operating Mechanism:
- Features a mechanical manual closing mechanism.
Does not include:
- Spring charging motor.
- Closing coil (CC).
- Remote trip alarm reset coil (RR).
- Shunt trips.
Auxiliary Switches:
- Equipped with 2NO + 2NC auxiliary switches for monitoring and control.
Signaling and Communication:
- Does not include communication or metering functions.
Additional Features:
- Includes a ready-to-close signal switch.
Additional Product Information
Product Family:
- Part of the 3WA1 Air Circuit Breakers series, supporting up to 6300 A (AC).
- Complies with IEC standards.
- Product Lifecycle: Active (PLM Code: PM300).
- Commodity Code: 85362090.
- Catalog ID: LV10.
- Group Code: P360.
Applications
The 3WA1120-3AA02-0AA0 is designed for:
- High-current systems requiring manual operation for protection or control.
- Industrial applications where automation is not required but high breaking capacity is critical.
- Systems with rear horizontal connections for compact installations.
Summary
This circuit breaker delivers a balance of performance, durability, and cost-efficiency, making it a reliable choice for non-automatic power management in diverse environments.
Frequently Asked Questions
Which is Better: ACB or MCCB?
✅ Current Rating: ACBs are designed for higher current ratings than MCCBs, making them ideal for circuits with larger current demands.
✅ Adjustable Tripping: MCCBs offer adjustable tripping thresholds, which makes them versatile and suitable for a variety of circuit applications. This flexibility can give MCCBs an advantage in systems where different levels of protection are required.
In summary, ACBs are often preferred for high-current circuits, while MCCBs provide flexibility and adaptability in a range of applications. Each type has its strengths depending on the specific needs of the electrical system.
When Should You Use an ACB (Air Circuit Breaker)?
✅ Air Circuit Breakers (ACBs) are ideal for high-voltage applications, such as substations and power transmission systems, where they offer dependable protection by effectively interrupting heavy fault currents. Their robust design makes them a top choice for safeguarding critical electrical systems that require high fault-clearing capabilities.
What is the Purpose of a WL Circuit Breaker?
✅ The Siemens WL power circuit breaker is designed for low-voltage switchgear and switchboard applications, offering essential protection against short circuits and faults to prevent electrical damage or fire hazards. Commonly used as incoming-feeder, coupler, and outgoing-feeder circuit breakers, WL circuit breakers serve a wide range of applications in industrial, commercial, and infrastructure settings. They are a reliable choice for ensuring the safety and efficiency of electrical installations.
Are Siemens WL Circuit Breakers 100% Rated?
✅ Yes, Siemens WL circuit breakers are 100% rated, meaning they are designed for continuous operation at their full current rating without requiring external heat sinks. These breakers are engineered to meet the rigorous demands of standard industrial and commercial applications, ensuring reliable performance and protection for continuous, high-current usage.
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