With its high breaking capacity and integrated trip unit, it is ideal for industries prioritizing operational reliability and straightforward maintenance.
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3WA1110-4AB42-0AA0
Air Circuit Breaker 3WA1, FS 1, ETU300, 4P N left side Withdrawable versions
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 3WA1110-4AB42-0AA0
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number (Market Facing Number) | 3WA1110-4AB42-0AA0 |
| Product Description | Withdrawable circuit breaker with guide frame, IEC 60947-2, frame size 1, 4-poles, N-pole left, In=1000A up to 690V AC 50/60Hz, breaking capacity M Icu=85/66kA at 500/690V, Trip unit ETU300 LSI optimized for standard applica- tions, without display Protection LT, ST, INST, include N-protection, (internal N-sensor available), incl. trip alarm switch (1xCO), rear connection horizontal, guide frame with shutter and w/o position signalling switch, 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 | |
| Region Specific PriceGroup / Headquarter Price Group | 12O / 1CE |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Materials | None |
| 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: 31.12.9999 | |
| 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
3WA1110-4AB42-0AA0
The Siemens 3WA1110-4AB42-0AA0 is a withdrawable circuit breaker designed with a guide frame, adhering to IEC 60947-2 standards. It belongs to the 3WA1 Air Circuit Breakers series and is engineered for industrial power distribution systems requiring reliable performance and safety.
Key Features and Specifications:
- Number: 3WA1110-4AB42-0AA0
- Mounting Type: Withdrawable with a guide frame
- Frame Size: 1
- Poles: 4-pole (with N-pole on the left)
- Rated Current (In): 1000 A
- Voltage Rating: Up to 690 V AC (50/60 Hz)
Breaking Capacity (Icu):
- 85 kA at 500 V
- 66 kA at 690 V
Features and Functionalities
Trip Unit:
- Features the ETU300 LSI trip unit, optimized for standard applications
- Provides long-time (LT), short-time (ST), instantaneous (INST), and N-protection
- Includes an internal N-sensor, eliminating the need for external components
- Does not include a display for simplified use
Guide Frame:
- Equipped with a shutter for enhanced safety during maintenance
- Does not include a position signaling switch
Manual Operating Mechanism:
- Operated with a mechanical closing mechanism
- Excludes a spring charging motor, making it suitable for manual operation
Connections and Safety:
- Rear horizontal connections for easy installation
- Includes a trip alarm switch (1xCO) for status notifications
Auxiliary Features:
- Comes with 2NO and 2NC auxiliary switches for additional control
Excludes:
- Closing coil (CC)
- Remote trip alarm reset coil (RR)
- Shunt trips
Metering and Communication:
- No communication or metering functions, making it ideal for straightforward use cases
Additional Product Information:
- Product Family: 3WA1 Air Circuit Breakers, designed for applications up to 6300 A (AC)
- Product Lifecycle (PLM): Active product
- Commodity Code: 85362090
- Catalog ID: LV10, Group Code: P360
Applications:
The 3WA1110-4AB42-0AA0 is well-suited for:
- Industrial power systems requiring robust fault protection
- Scenarios demanding reliable and safe manual operation
- Environments where withdrawal mechanisms and shutter features are critical for maintenance safety
Summary
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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