ABB OVR T2 3N 40-385 P QS Surge Protection Device

This is a Type 2 surge protection device of the ABB OVR T2 series for three-phase four-wire (3Н) systems, featuring a maximum continuous operating voltage Uc of 385V, a nominal discharge current In of 20kA (8/20μs), and a maximum discharge current Imax of 40kA (8/20μs). It is designed with pluggable (П) and quick safe thermal trip (КО) features, and is suitable for power distribution protection in 400V systems.

1. Model Nomenclature Explanation
   

   Модельный сегмент	Значение
   OVR	ABB surge protection device product series
   Т2	Тип 2 СПД, соответствует МЭК 61643-11, protects against indirect lightning and switching overvoltages
   3Н	3-phase + neutral protection (3П+Н), suitable for three-phase four-wire systems
   40	Maximum discharge current Imax=40kA (8/20с), nominal discharge current In=20kA (8/20с)
   385	Maximum continuous operating voltage Uc=385V, suitable for 400V systems
   П	Pluggable design for easy maintenance and replacement without power shutdown
   КО	Quick safe thermal trip technology with built-in overheat protection to prevent fire hazards caused by SPD faults

2. Ключевые технические параметры

3. Product Features and Advantages
4. Pluggable Design (П): No power shutdown required for maintenance; modules can be directly plugged and unplugged for replacement, improving system availability.
5. Quick Safe Thermal Trip (КО): Built-in thermal protection device that automatically disconnects the circuit when the SPD overheats due to aging or overload, preventing fire risks.
6. Wide Voltage Range: 385V Uc is suitable for 400V systems with large voltage fluctuations.
7. Comprehensive Protection: Provides both L-N and N-PE protection, covering all critical paths of three-phase four-wire systems.
8. Mechanical Fault Indicator: Intuitively displays the operating status of the SPD for easy inspection and maintenance.
9. System pro M compact Compatibility: Compatible with ABB modular systems for easy installation.
10. Сценарии применения

Коммерческие здания: Floor distribution boxes in office buildings, shopping malls and hotels.

Industrial Facilities: Secondary power distribution systems in factory workshops.

Public Facilities: Power distribution networks in hospitals, schools and data centers.

Residential Buildings: Centralized power distribution protection in high-rise residential buildings.

Applicable Systems: TN-S and TT systems, especially suitable for 400V three-phase four-wire systems and secondary power distribution protection more than 10 meters away from the main distribution box.

5. Installation and Maintenance Key Points
6. Installation Location: Inside secondary distribution boards, close to the protected equipment.
7. Резервная защита: It is recommended to use with MCB or fuse, with a recommended rated current of 16A-32A.
8. Требования к проводке: Use copper conductors with a cross-sectional area of ≥6mm²; the connection length should be as short as possible (≤0,5 м).
9. Maintenance Cycle: Inspect the fault indicator regularly and replace the module immediately if a fault is found.
10. Replacement Note: Only use original ABB OVR T2 series 3N 40-385 P QS modules for replacement.
11. Related Product Description

OVR SC N3 40-385 P QS: Compact 3-phase + neutral surge protection device, Product Code: 2TAM223100R4600, EAN: 6941195400111.

OVR SC N3 40-385 П ТС КС: Version with tele-signaling contact (ТС) for remote monitoring of SPD status, Product Code: 2TAM223100R4601, EAN: 6941195400128.

OVR T2 3N 40-350/440 P QS: Versions with other Uc values, suitable for systems of different voltage classes.

7. Рекомендации по выбору

When selecting a surge protection device, a comprehensive consideration should be given to system voltage, protection requirements, installation location and environmental conditions:

1. For a 400V system voltage, select products with Uc=385V or 440V.
2. Select Type 2 SPD for secondary distribution boxes, and Type T1+T2 combined SPD for main distribution boxes.
3. For critical equipment, it is recommended to select the version with tele-signaling contact (ТС) to achieve remote monitoring.
4. For harsh environments, select products with a higher protection class.

Comprehensive Analysis of Applicable Industries for ABB OVR T2 3N 40-385 P QS

Основной вывод: This Type 2 pluggable surge protection device for three-phase four-wire systems (Iмакс=40кА, Uc=385V, with QS quick safe thermal trip) is widely applicable to all industries adopting the 400V three-phase four-wire system, including industrial manufacturing, commercial buildings, public facilities, data communication, healthcare, rail transit and new energy. It is particularly suitable for scenarios with high requirements for power supply continuity, equipment safety and maintenance convenience.

1. Industrial Manufacturing Industry (Core Applicable Field)

Применимые сценарии

Factory Automated Production Lines: Protect precision control equipment such as PLC, DCS, frequency converters and servo systems, preventing production line shutdown caused by surge impacts from equipment start/stop and power grid fluctuations.

Motor Control Center (МСС): Suppress switching overvoltages generated by motor startup and extend the service life of motors and control components.

Process Control Systems: Ensure stable transmission of control signals in continuous production processes of chemical, pharmaceutical, food and beverage industries.

CNC Machine Tools and Precision Processing Equipment: Prevent damage to CNC systems by surges, avoiding reduced processing accuracy and workpiece scrap.

Core Value

Reduce equipment failure rate and improve production continuity (cases show an 80% reduction in failure rate after installation).

The pluggable design supports maintenance without shutdown, reducing the risk of production interruption.

QS quick safe thermal trip technology prevents fire hazards caused by SPD faults and complies with industrial safety standards.

2. Commercial Building Industry

Применимые сценарии

High-rise Office Buildings, Shopping Malls and Hotels: Floor distribution box protection, covering lighting systems, elevators, central air conditioners and intelligent building control systems.

High-end Residential Communities: Centralized power distribution protection to prevent the impact of lightning and power grid fluctuations on residents’ electrical equipment.

Exhibition Centers and Gymnasiums: Surge protection for temporary electrical equipment and large display screens to ensure the smooth progress of activities.

Core Value

Protect expensive intelligent building equipment and reduce maintenance costs.

Ensure the safety of power use in public areas and improve user experience.

The modular design is adapted to the compact space of distribution boxes for easy installation.

3. Public Facilities and Municipal Engineering

Применимые сценарии

Hospitals and Schools: Protect medical equipment, teaching instruments and computer networks to ensure life safety and the normal progress of teaching activities.

Government Office Buildings and Public Libraries: Surge protection for e-government systems and data storage equipment to prevent data loss.

Transportation Hubs (Airports, Railway Stations, Metro Stations): Ensure the stable operation of baggage handling systems, security inspection equipment and broadcasting systems.

Sewage Treatment Plants and Water Supply Plants: Protect pump station control systems and instrument equipment to ensure the continuous operation of urban infrastructure.

Core Value

Comply with public safety standards and ensure the continuity of public services.

Provide reliable protection for sensitive equipment such as life support systems in hospitals and precision teaching instruments in schools.

4. Data Communication and Information Technology Industry

Применимые сценарии

Data Centers: Secondary power distribution protection in server rooms and network equipment rooms, forming a multi-level protection system with Type T1 SPD.

Cloud Computing Centers: UPS output ends and PDU front ends to protect server clusters and storage equipment from surge damage.

Communication Base Stations: Three-phase power distribution systems in machine rooms to protect main base station equipment and transmission equipment.

Financial Institution Data Centers: Trading systems and data storage equipment of banks and stock exchanges, preventing transaction interruption and data loss caused by surges.

Core Value

Ensure 99.999% system availability and prevent data loss and business interruption.

The low residual voltage (≤1.8kV) design effectively protects the sensitive circuits of IT equipment.

The optional tele-signaling contact version enables remote monitoring, meeting the management requirements of data centers.

5. Healthcare Industry

Применимые сценарии

General Hospitals: Power supply protection for medical equipment in ward distribution boxes, operating rooms and ICUs, including ventilators, monitors and anesthetic equipment.

Diagnostic Centers: Large medical imaging equipment such as CT, MRI and X-ray machines, preventing equipment faults and incorrect diagnostic results caused by surges.

Laboratories: Ensure stable power supply for precision analytical instruments and biosafety cabinets.

Core Value

Comply with IEC 60364 and medical electrical equipment safety standards to ensure patient life safety.

The low voltage protection level ensures the accurate operation of medical equipment and avoids misdiagnosis and treatment interruption.

Safe thermal trip technology eliminates fire hazards and complies with the strict safety management requirements of hospitals.

6. Rail Transit Industry

Применимые сценарии

Metro/Light Rail Stations: Power distribution protection for platform lighting, automatic ticketing systems, platform screen door control and monitoring systems.

Depots: Surge protection for train maintenance equipment and charging systems.

Signal Control Systems: Protect track circuits and dispatching systems to prevent signal errors and traffic safety hazards caused by surges.

Core Value

Adapt to the complex electromagnetic environment of rail transit systems and resist surge interference generated by traction systems.

The high-reliability design meets the stringent requirements of the rail transit industry for equipment availability.

7. New Energy Industry

Применимые сценарии

Photovoltaic Power Stations: Inverter front ends and auxiliary power distribution systems to protect photovoltaic modules and inverters from lightning and power grid fluctuations.

Wind Farms: Surge protection for wind turbine converters and monitoring systems.

Electric Vehicle Charging Stations: AC input side protection of DC charging piles to prevent damage to charging modules by power grid surges.

Core Value

Adapt to the voltage fluctuation characteristics of new energy systems; 385V Uc provides sufficient voltage margin.

Protect expensive new energy equipment and reduce operation and maintenance costs.

8. Other Applicable Industries

9. Selection and Adaptation Key Points
10. Совместимость системы: Perfectly adapted to the 400V three-phase four-wire system (TN-S, TT systems); 385V Uc has a high matching degree with the system voltage.
11. Installation Location: Mainly used for secondary power distribution protection (floor/area distribution boxes), with better effect when used in conjunction with Type T1 SPD.
12. Industry Standards: Compliant with IEC 61643-11 и ГБ/Т 18802.1 стандарты, meeting the safety specification requirements of various industries.
13. Maintenance Requirements: The pluggable design is particularly suitable for unattended or non-shutdown places such as data centers and hospital ICUs.

With features such as Type T2 protection capability, three-phase four-wire protection, pluggable maintenance and quick safe thermal trip, the ABB OVR T2 3N 40-385 P QS has become an ideal surge protection solution for all 400V three-phase systems. Whether in the industrial manufacturing, commercial building, public facility or emerging new energy industry, this product can provide reliable overvoltage protection for your electrical equipment, ensuring stable system operation and reducing maintenance costs.

ABB OVR T2 3N 40-385 P QS Cross-Brand Model Comparison

Core Points: The following are mainstream cross-brand models that are fully compatible with this ABB Type 2 pluggable surge protection device for three-phase four-wire systems (Iмакс=40кА, Uc=385V, QS quick safe thermal trip), sorted by brand, including key parameter comparison and replacement notes

1. Overview of Corresponding Models of Mainstream Brands

2. Detailed Parameter Comparison Table

3. Feature Description of Each Brand Model
4. ABB Internal Series Replacement

OVR SC N3 40-385 P QS: Compact design with identical parameters to the original model, saving installation space and suitable for distribution boxes with limited space.

OVR T2 3N 40-385 П ТС КС: Version with tele-signaling contact (ТС) for remote monitoring of SPD status, suitable for unattended places.

2. Schneider iQuick PRD40r

Belongs to the Schneider Acti9 series and is dimensionally compatible with ABB products.

Built-in quick thermal trip technology, equivalent in function to QS.

Supports hot swapping of modules for convenient maintenance.

Can be perfectly matched with Schneider MCB to provide more comprehensive protection.

3. Siemens 5SD7474-1CC

Siemens Green series surge protection device with an environmentally friendly design.

The thermal trip device is consistent in function with QS, preventing safety hazards caused by SPD overheating.

Clear mechanical fault indication for easy inspection.

Suitable for industrial automation and intelligent building systems.

4. Phoenix Contact VAL-MS 385/40/3+1-FM

Phoenix Contact VALVETRAB MS series with industrial-grade quality.

The FM suffix indicates tele-signaling function, which can be connected to PLC to realize status monitoring.

Built-in thermal protection with the same technical principle as QS.

Anti-reverse insertion design to ensure correct module installation.

5. OBO V20-C/3+NPE-385V

Classic German OBO series with wide global application.

Thermal circuit breaker is OBO’s patented technology, equivalent in function to QS.

Pluggable module design supporting hot swapping.

Optional FS tele-signaling or AS audible and visual alarm functions to meet different monitoring needs.

6. CITEL DS44-385/3+N

French CITEL brand, focusing on the surge protection field.

Built-in thermal trip compliant with IEC 61643-11 стандартный.

Low residual voltage with excellent protection effect.

Suitable for secondary power distribution protection in industrial and commercial buildings.

4. Replacement Notes
5. Parameter Matching Priority

Ensure the four core parameters of Uc(385В), Imax(40тот), Класс защиты(Т2) and Pole Number(3П+Н) are completely consistent.

Pluggable design and thermal trip function are optional but recommended matching items to ensure maintenance convenience and safety.

2. Совместимость установки

All models are mounted on 35mm DIN rail with a 4-module width (приблизительно. 72мм), featuring compatible installation dimensions.

The positions and specifications of wiring terminals are basically consistent, allowing for direct replacement.

3. Backup Protection Configuration

It is recommended to retain the original 16A-32A MCB or fuse backup protection after replacement.

Ensure the cross-sectional area of the connecting conductor is ≥6mm² and the length is ≤0.5m to guarantee the protection effect.

4. Совместимость системы

Applicable to TN-S and TT systems, not applicable to TN-C systems.

Check the equipotential connection between the SPD and the system after replacement.

5. Maintenance and Replacement

All pluggable models support hot swapping, but safety operating procedures must be followed.

It is recommended to inspect the fault indicator quarterly and replace the module immediately if a fault is found.

5. Рекомендации по выбору