The entire series covers a current range from 800A to 6300A, with a breaking capacity of up to 150kA; the Emax 2 adds a load management function, actively shaving peaks to save up to 30% on electricity costs. Inquire for a quote!
| ABB Emax series air circuit breakers are one of ABB's core products in the low-voltage electrical field. They are suitable for primary and secondary power distribution systems and are widely used in industrial plants, ships, coal mines, substations, and other scenarios. 2. This series of circuit breakers uses microprocessor technology, requires no external power supply during operation, is highly sensitive to the true current value (RMS), and the trip units of different models are interchangeable, offering flexible use. | |||||||
| Main technical parameters | |||||||
| Rated insulation voltage | Rated operating voltage | Frame current range | Rated continuous current | Rated breaking capacity (Icu) | Rated operating breaking capacity (Ics) | ||
| 1000V | 690V | 800A ~ 6300A | 400A ~ 6300A | 42 ~ 150kA | 36 ~ 125kA | ||
| Product Series and Framework Specifications | |||||||
| The Emax series is available in multiple models based on frame size, covering different current ratings: | |||||||
| Frame Model | Rated current range (Iu) | Applicable Scenarios | |||||
| E1 | 800 ~ 1250A | Small and medium-sized power distribution | |||||
| E2 | 1250 ~ 2000A | Medium-sized power distribution | |||||
| E3 | 1250 ~ 3200A | Medium and large power distribution | |||||
| E4 | 3200 ~ 4000A | Large power distribution | |||||
| E6 | 3200 ~ 6300A | Extra-large power distribution | |||||
| Segmentation Ability Level | |||||||
| Grade B | N-level | S-Class | H-class | V-Class | L-class | ||
| 40kA | 65kA | 75kA | 100kA | 150kA | 130kA | ||
| Trip unit configuration | |||||||
| The Emax series is equipped with advanced microprocessor-based electronic trip units, and the main models are as follows: | |||||||
| Trip unit model | Protection function | Features | |||||
| PR121/P | LI / LSI | Basic protection, LED display fault type | |||||
| PR122/P | LSI / LSIG | Modular structure, measurement function, and communication capability. | |||||
| PR123/P | LSIG | Advanced protection, dialogue unit, precision measurement | |||||
| Trip Unit Function Code Explanation | Advantages of electronic trip units | ||||||
| LI: | Two-stage protection (long delay + instantaneous) | Microprocessor technology, high precision | |||||
| LSI: | Three-stage protection (long delay + short delay + instantaneous) | Sensitive to the true current value (RMS) | |||||
| LSIG: | Four-stage protection (long delay + short delay + instantaneous + ground fault). | Interchangeable trip units facilitate easy maintenance. | |||||
| Optional communication module for remote monitoring | |||||||
| Installation method and wiring | |||||||
| Installation method: | Wiring method: | Structural features: | |||||
| Fixed type (F)Direct fixed installation, lower cost. | HRHorizontal wiring | Steel plate structure, compact size | |||||
| Draw-out type (W)The removable structure facilitates maintenance and replacement. | VRVertical back wiring | Double-layer insulation isolates live parts, ensuring high safety. | |||||
| FExtension wiring | The same height and depth facilitate the design of the distribution panel. | ||||||
| FLTerminal face wiring (fixed type only) | Pull-out type with shutter that automatically closes when pulled out. | ||||||
| Operating mechanism | |||||||
| Emax circuit breakers adoptEnergy storage operating mechanismIt operates via a pre-stored energy spring: | |||||||
| Manual energy storageOperate via the front panel handle | Remote control operationRemote control is achieved through the closing/opening coil. | ||||||
| Electric energy storageOperated by a geared electric motor | Opening springAutomatic energy storage during closing operation | ||||||
| Selection Guide | |||||||
| Model naming rules: | |||||||
| Example:E1 B 800 PR122/P-LSI R800 3P WHR | |||||||
| Code location | meaning | Example value | |||||
| frame | Emax frame model | E1 / E2 / E3 / E4 / E6 | |||||
| Breaking capacity | B/N/S/H/V/L | B (40kA) | |||||
| Frame current | Frame-level current | 800 (representing the 800A frame) | |||||
| trip unit | Trip unit model and protection | PR122/P-LSI | |||||
| Rated current | In rated current | R800 (800A) | |||||
| Extreme number | 3-pole or 4-pole | 3P | |||||
| Installation method | W/F + Wiring Method | WHR (pull-out type + horizontal back wiring) | |||||
| Commonly used accessory control voltage: | |||||||
| YO: Shunt trip unit | YC: Closing coil | YU: Undervoltage release device | M: Electric operating mechanism | ||||
| Summary of technical features | |||||||
| 1. High reliability:Mechanical life can reach over 20,000 cycles, with excellent electrical life. | |||||||
| 2. Comprehensive protection:Four-stage protection (LSIG) meets various power distribution needs. | |||||||
| 3. Modular design:Interchangeable trip units and flexible accessory configuration | |||||||
| 4. Intelligentization:It supports communication functions and can be connected to monitoring systems. | |||||||
| 5. Compact structure:Designed with the same height and depth, saving space in the power distribution cabinet. | |||||||
| Emax 2 Series Frame Circuit Breakers (ACB) | |||||||
| Product Overview: More than just a circuit breaker, it's a comprehensive energy manager. | |||||||
| 1. The ABB Emax 2 series air circuit breakers are a comprehensive upgrade of the Emax series, featuring...Improving energy efficiency was the original design goal.This has enabled the transformation from traditional protection devices to integrated systems.Power Managersignificant leap forward. 2. This series of products not only protects electrical circuits but also reduces energy consumption and waste significantly according to user needs. It is equipped with a protective trip unit that can integrate with the power control module, enabling it to assess energy consumption and manage load, thereby maintaining or reducing power consumption during peak hours. With its innovative design and superior performance, the Emax 2 won the 2014 [Award Name/Winner].Red Dot Product DesignGrand prize. | |||||||
| Main technical parameters | |||||||
| Rated insulation voltage: 1000V (standard) / 1500V (high voltage model) | |||||||
| Rated operating voltage: 690V / 1000V / 1200V (maximum 1380V) | |||||||
| Frame current range: 800A ~ 6300A | |||||||
| Rated breaking capacity (Icu): 42 ~ 150kA (AC 690V) | |||||||
| Rated breaking capacity (Ics): 36 ~ 125kA | |||||||
| Mechanical life: up to 20,000 cycles | |||||||
| Electrical life: up to 10,000 cycles | |||||||
| Product Series and Framework Specifications | |||||||
| The Emax 2 series is available in four models based on frame size, covering different current ratings. All models share the same protection trip unit, auxiliary circuit connections, and main accessories, greatly simplifying design and installation. | |||||||
| Frame Model | Rated current range (Iu) | Applicable Scenarios | Features | ||||
| E1.2 | 250 ~ 1600A | Small and medium-sized power distribution | It can be installed horizontally or wall-mounted, offering high flexibility. | ||||
| E2.2 | 800 ~ 2000A | Medium-sized power distribution | Compact design, optimized space utilization | ||||
| E4.2 | 800 ~ 3200A | Medium and large power distribution | High performance to meet complex power distribution needs | ||||
| E6.2 | 1600 ~ 6300A | Extra-large power distribution | The frame has the highest current capacity and is suitable for main incoming lines. | ||||
| Segmentation Ability Level: | |||||||
| N-level: 65kA | S-class: 75kA | Class H: 100kA | Class V: 150kA | L-class: 130kA | |||
| Structural advantages: | |||||||
| The height and depth of E2.2 to E6.2 are the same, which facilitates the standardized design of distribution cabinets. | |||||||
| The compact size reduces the busbar size and cross-sectional area, saving copper and installation space. | |||||||
| It can reduce the size of the switch cabinet by up to 25%, significantly saving raw material costs. | |||||||
| Ekip Smart Trip Unit Configuration | |||||||
| The Emax 2 is equipped with the next-generation Ekip smart trip unit, which is easy to program and read, accurately measures power and energy, and saves recent alarms and abnormal events. | |||||||
| Trip Unit Model Comparison | |||||||
| Trip unit model | Protection function | Display method | Core features | ||||
| Ekip Dip | LI / LSI | LED indicator | Basic protection, economical and practical | ||||
| Ekip Touch | LSI / LSIG | Full-color touchscreen | Intuitive operation, integrated power management software, and Bluetooth support. | ||||
| Ekip Hi-Touch | LSIG / Advanced Protection | Full-color touchscreen | High-performance protection, supporting generator protection (G protection). | ||||
| Ekip G | Generator-specific protection | touchscreen | Built-in generator protection function, no external monitoring device required. | ||||
| Trip Unit Function Description | Core advantages of trip unit | ||||||
| LI:Two-stage protection (long delay + instantaneous) | High-precision measurement:Voltage measurement accuracy is 0.5%, current accuracy is 1%, and power accuracy is 2%, meeting Class 0.5S energy metering requirements. | ||||||
| LSI:Three-stage protection (long delay + short delay + instantaneous) | Self-powered design:Power is drawn from the main circuit CT, eliminating the need for auxiliary power. Even in the event of a plant-wide power outage, the final trip can still be completed and the fault record saved. | ||||||
| LSIG:Four-stage protection (long delay + short delay + instantaneous + ground fault). | Event Log:It can record up to 200 timestamped events, including tripping reasons, current snapshots, and waveform graphs. | ||||||
| Bluetooth connection:The Ekip Touch and Hi-Touch release devices come standard with Bluetooth functionality, allowing for wireless connection via a mobile app. | |||||||
| Technical Highlights: Ekip Modular Expansion System | |||||||
| Emax 2 adopts a modular design, allowing for flexible expansion of functionality as needed: | |||||||
| Module type | Function | Applicable trip unit | |||||
| Ekip Measuring | Voltage measurement, power calculation, and electricity metering | Ekip Touch / Hi-Touch | |||||
| Ekip Signalling 2K/4K/10K | Digital input/output, remote alarm and control | Ekip Touch / Hi-Touch | |||||
| Ekip Com | Communication module, supporting Modbus/Profibus/IEC 61850 | Ekip Touch / Hi-Touch | |||||
| Ekip Link | Local monitoring, connected to Ekip control panel | All Ekip trip units | |||||
| Ekip Bluetooth | Wireless connection, mobile app debugging | Ekip Touch / Hi-Touch | |||||
| Ekip Supply | Auxiliary power supply module (110-240V AC/DC or 24-48V DC) | All Ekip trip units | |||||
| Ekip Cartridge | Expansion box, adding module slots | E1.2 Dedicated | |||||
| Modular advantages: | |||||||
| Function upgrades can be ordered online through the ABB Ability Marketplace software platform. | |||||||
| Interchangeable trip units, plug-and-play modules | |||||||
| Multiple functional modules can be installed in the same circuit breaker. | |||||||
| Specifications Overview (Emax 2 Series) | |||||||
| Frame Model | Rated current range (A) | Extreme number | Breaking capacity Icu (AC 690V) | Installation method | External dimensions (width × height × depth mm) | ||
| E1.2 | 250 ~ 1600 | 3/4 | 50 / 65 / 100 kA | Fixed/Extractable | 210 × 362 × 283 | ||
| E2.2 | 800 ~ 2000 | 3/4 | 65 / 100 / 120 kA | Fixed/Extractable | 210 × 362 × 302 | ||
| E4.2 | 800 ~ 3200 | 3/4 | 100 / 120 / 150 kA | Fixed/Extractable | 350 × 362 × 395 | ||
| E6.2 | 1600 ~ 6300 | 3/4 | 100 / 120 / 150 kA | Extractable | 510 × 362 × 395 | ||
| Wiring method: | |||||||
| HR:Horizontal back wiring | VR:Vertical back wiring | F:Extension wiring | FL:End face wiring (fixed type only) | EF/SHR/ES:Special wiring method | |||
| Attachment configuration: | |||||||
| Standard configuration (NST): YO shunt trip unit + YC closing coil + M electric operating mechanism + 4CO auxiliary contacts (220V AC/DC) | |||||||
| Selection Guide | |||||||
| Model naming rules: | |||||||
| Example:E6.2 H 5000 T LSIG 4P WMP NST | |||||||
| Code location | meaning | Example value | |||||
| frame | Emax 2 frame model | E1.2 / E2.2 / E4.2 / E6.2 | |||||
| Breaking capacity | N/S/H/V/L | H (100kA) | |||||
| Rated current | Frame-level current | 5000 (5000A) | |||||
| Trip unit type | T = Touch / D = Dip / H = Hi-Touch | (Ekip Touch) | |||||
| Protection function | LSIG / LSI / LI | LSIG (Four-Segment Protection) | |||||
| Extreme number | 3P / 4P | 4P | |||||
| Wiring installation | WMP (withdrawable type + horizontal rear wiring) / FHR (fixed type + horizontal rear wiring) | WMP | |||||
| Attachment Configuration | NST (Standard Accessories) / Other | NST | |||||
| Commonly used accessory control voltage: | |||||||
| YO:Shunt trip unit (can be powered on for extended periods) | YC:Closing coil | YU:undervoltage release | M:Electric operating mechanism (including MC energy storage indicator contacts) | MOE:Manual operating mechanism | |||
| EMAX 2 vs EMAX: Core Upgrade Points | |||||||
| Comparison items | Emax (Classic Series) | EMAX 2 (Next Generation) | |||||
| position | High reliability protection devices | Power Manager + Protection | |||||
| Power Management | none | Built-in patented Power Controller technology | |||||
| Measurement accuracy | Basic Measurement | Class 0.5S High-Precision Electricity Metering | |||||
| Communication capabilities | Optional Modbus | Native support for IEC 61850 / Modbus TCP / Profinet | |||||
| Trip unit interface | PR12x series | Ekip Touch / Hi-Touch Touchscreen | |||||
| Bluetooth debugging | Not supported | Supports (Ekip Touch/Hi-Touch) | |||||
| Feature upgrade | Hardware replacement | Online software updates (ABB Ability Marketplace) | |||||
| Module expansion | limited | Extensive modular expansion (signaling, communication, measurement) | |||||
| Certification | IEC / CCC | IEC / UL / CCC triple certification | |||||
Data Center:UPS input/output and diesel generator grid connection point ensure the server never loses power.
Industrial manufacturing:Welding robot production line, large rolling mill, electric arc furnace in automobile factory
Infrastructure:Power supply circuits for hospital operating rooms, main power distribution circuits for airport terminals, and traction substations for subways.
New energy:Photovoltaic power plants, energy storage systems, and wind power grid-connected cabinets
Commercial complex:Transformer outgoing lines, chiller station main switch
Naval Architecture and Ocean Engineering:Meets the certification requirements of classification societies such as DNV, BV, and ABS.
| Return and exchange conditions | |||||||
| situation | Is it possible to return or exchange it? | Does it contain | |||||
| Product quality issues | Returnable | ✅ | |||||
| Wrong model/specification sent | Returnable | ✅ | |||||
| Customer placed an order incorrectly | Negotiation | ✅ | |||||
| Customized/non-standard products | Non-refundable | ✅ | |||||
| For clients with stable partnerships and large purchasing volumes, the following service packages are available: | |||||||
| Services | Does it contain | ||||||
| Dedicated safety stock | ✅ | ||||||
| Annual framework procurement | ✅ | ||||||
| Tiered bulk discounts | ✅ | ||||||
| Flexible payment terms support | ✅ | ||||||
| One-stop packaged procurement | ✅ | ||||||
| Rapid after-sales response | ✅ | ||||||
| Contact information: | |||||||
1. Who are we?
We are Wenzhou Guotuo Electric Co., Ltd., a leading partner of leading companies such as Schneider Electric, ABB, and Siemens, specializing in the sales of power distribution and industrial control products. We not only guarantee the authenticity of our products but also offer highly competitive prices.
2. Are you a distributor?
Yes, we are a distributor for Schneider Electric and ABB, and can provide proof of authenticity and certificate of origin.
3. Why should you buy from us instead of other suppliers?
Because we offer genuine products, competitive prices, and ample stock.
4. How do we ensure quality?
We provide genuine original products and offer a two-year warranty.
5. When will I receive a quote and detailed information after submitting an inquiry?
We will reply to you within 12 hours.
6. What services can we provide?
We can provide you with the following services: product consultation, product quotation, shipping quotation, answering your questions, order tracking, and after-sales service support.
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