Chint Automatic Transfer Switching Equipment (ATSE)NH40-2000/4SZ

The Chint NH402000/4SZ is a PCclass Automatic Transfer Switching Equipment (ATSE), specifically designed for threephase fourwire power supply systems, and is suitable for scenarios with extremely high requirements for power supply continuity. The following is a detailed analysis of its core technical parameters, scenari applicativi, and selection suggestions:Prezzo degli interruttori automatici Schneider

1. Core Technical Parameters and Functional Characteristics
2. Prestazioni elettricheChint’s NB163DC series DC circuit breakers Prezzo

Corrente nominale: 2000UN, which can stably carry large current loads for a long time, suitable for scenarios such as industrial equipment and large commercial buildings.

Tensione nominale: Alternating current 50Hz/60Hz, with a rated operating voltage of 400V or 690V (to be confirmed according to the model).

Capacità di interruzionePrezzo dei relè termici di sovraccarico serie Chint NXR:

Shorttime withstand current (Icw): According to the technical documents of the Chint NH40 series, the Icw of large current models (such as 630A) is 12.6kA. It is speculated that the Icw of the 2000A model may be higher (subject to the official parameters).Prezzo contattore CHINT

Shortcircuit making capacity (Icm): Usually 1.8 times that of Icw. Per esempio, the Icm of the 630A model is 25.2kA, and the 2000A model may reach a higher value.

Certification Standards: It complies with GB/T 14048.11 (corresponding to IEC 6094761) e GB/T 14048.3 (corresponding to IEC 609473) standard, ma la certificazione UL non è menzionata esplicitamente, which may affect its use in the North American market.

2. Structure and OperationPrezzo del dispositivo di protezione da sovratensione CHINT

Pole Number and Conversion Mode: 4P fourpole design, supporting automatic or manual switching between two power sources (main power source and backup power source). There will be a short interruption of power supply during the switching process (the conversion time is about 0.10.5 secondi).

Drive Mode: Electromagnetic drive. The operating mechanism has a builtin energy storage spring to ensure fast and reliable switching.

Metodo di installazione: It supports frontofpanel wiring. The operating handle can be installed inside or outside the cabinet, adapting to different distribution cabinet designs.

1. Scenari applicativi tipici
2. Key Infrastructure

Hospitals: Backup power source switching in places such as operating rooms and Intensive Care Units (ICUs) to ensure the continuous operation of medical equipment.

Centri dati: Power supply guarantee for server clusters and network equipment to avoid data loss or service interruption due to power outages.

Fire Protection Systems: Power source switching for equipment such as fire pumps and emergency lighting to meet fire protection specification requirements.

2. Industrial and Commercial Fields

Chemical/Metallurgical Industries: Power supply for motors and control systems on production lines to prevent production accidents caused by power outages.

Highrise Buildings: Dualpower supply guarantee for elevators, water supply and drainage systems, and security equipment to enhance building safety.

Malls/Supermarkets: Power source switching for cash register systems and cold storage equipment to reduce losses due to business interruptions.

3. Emergency and Backup Power Sources

Military Facilities: Backup power source switching for communication equipment and command systems to ensure the reliability of power supply during wartime.

Civil Air Defense Projects: Power supply guarantee for underground shelters and emergency command centers to meet disaster prevention needs.

III. Selection and Installation Key Points

1. Carica corrispondenza

Current Selection: Ensure that the rated current of the switch (2000UN) is greater than the actual load current. It is recommended to reserve a 20%30% redundancy.

Shortcircuit Protection: The PCclass switch itself does not have shortcircuit breaking capacity and needs to be used in conjunction with a circuit breaker (such as the Chint NM8 series molded case circuit breaker) to achieve the breaking of fault current.

2. Requisiti ambientali

Temperature and Altitude: The operating temperature is from 5°C to +40°C, and the altitude should not exceed 2000 metri. In highaltitude areas, it needs to be derated for use.

Humidity and Pollution: When the maximum temperature is +40°C, the relative humidity should not exceed 50%. At lower temperatures, a higher humidity is allowed (ad esempio 90% at 20°C), but protection against condensation is required.

Posizione di installazione: It should be vertically installed in a place without vibration and corrosive gases, and avoid direct sunlight.

3. Certificazione e Conformità

North American Market: If it needs to be used in North America, it is necessary to confirm whether it has passed the UL certification (currently not mentioned in the public information), or select an alternative model with UL certification (such as the Schneider CVS series).

Fire Protection Requirements: When used in a fire protection system, it needs to comply with the relevant requirements of GB 50116 “Code for Design of Automatic Fire Alarm Systems”.

1. Price and Supply Information
2. Prezzo di mercato

NH402000/4SZ: Consult via Whatsapp: 8613811255435

2. Supply Status

Regular Models: Medium and low current models (such as 63A, 100UN) usually have现货 and can be delivered quickly.

2000A Model: It may need to be customized or have a long delivery cycle (Di 24 weeks). It is recommended to confirm the inventory and production plan with the supplier in advance.

1. Manutenzione e risoluzione dei problemi
2. Manutenzione giornaliera

Ispezione regolare: Inspect the contact state of the contacts, the tightness of the wiring terminals, and the flexibility of the operating mechanism every quarter.

Pulizia e Manutenzione: Remove dust and oil stains to ensure the insulation performance of the housing. When the contacts are oxidized, they need to be sanded with sandpaper or replaced.

Prova di funzionalità: Conduct an automatic switching test once a year to verify the reliability of the control circuit and the drive motor.

2. Common Faults and Handling

Switching Failure: Check whether the power supply voltage, control signal, and drive motor are normal. Replace the control module if necessary.

Contact Overheating: Check whether the load current exceeds the rated value, or if the contact pressure is insufficient, adjust the spring tension.

Malfunction: Check for electromagnetic interference or control logic errors, and adjust the delay parameters or upgrade the firmware.

Alternative Solutions and Comparisons

1. Internal Alternatives of Chint

NZ7 Series: It has a higher breaking capacity (Icw can reach up to 80kA), suitable for scenarios with higher requirements for shortcircuit protection, but the price is about 30%50% higher than that of the NH40SZ series.

NTS Series: An economical dualpower conversion switch with a lower price but simplified functions, suitable for noncritical loads.

2. Altri marchi

Schneider CVS Series: It supports UL certification and has a strong breaking capacity (Icw up to 150kA), but the price is about 23 times that of the NH40SZ series.

ABB Tmax XT Series: Progettazione modulare, with expandable communication functions, suitable for intelligent power distribution systems.

Conclusione

The NH402000/4SZ is a highly reliable dualpower conversion switch, suitable for industrial, commerciale, and infrastructure scenarios with extremely high requirements for power supply continuity. Quando si seleziona un modello, key attention should be paid to load matching, potere di interruzione, and certification requirements, and the latest technical support should be obtained through official channels. If you need to further understand the detailed parameters of the 2000A model or its applicability in the North American market, it is recommended to directly contact the Chint sales team or authorized dealers.

Recommendations for alternative solutions for Chint NH402000/4SZ (PCclass automatic transfer switch for dual power supplies, rated current 2000A, four poles), covering domestic brands, international brands, and models suitable for special scenarios, along with selection suggestions and certification instructions:

1. Alternative Solutions from Domestic Brands
2. Delixi CDQ3H Series (PCclass ATSE)

Parametri fondamentali:

Corrente nominale: 2000UN (Needs customization, the highest rated current of regular models is 800A)

Capacità di interruzione: Icw = 12.6kA (Reference value for the 630A model), it is speculated that the 2000A model is higher

Certificazione: Certificazione CCC, UL certification is not explicitly mentioned

Vantaggi:

The price is about 80%90% of that of the Chint NH40 series, with high costeffectiveness.

Supports automatic/manual switching and is suitable for threephase fourwire systems.

Scenari applicabili: Backup power supply switching for domestic industrial and commercial buildings, and scenarios with low requirements for certification.

Prezzo di riferimento: Consult via Whatsapp: 8613811255435 yuan (Needs customization, subject to the quotation of dealers).

Delivery Cycle: Regular models are in stock, and the 2000A model requires 34 weeks.

2. People’s Electric Appliance RQ3 Series (PCclass ATSE)

Parametri fondamentali:

Corrente nominale: 2000UN (Needs customization, the highest rated current of regular models is 1600A)

Capacità di interruzione: Icw = 12.6kA (Reference value for the 630A model)

Certificazione: Certificazione CCC, UL certification is not explicitly mentioned

Vantaggi:

It has high interface compatibility with the Chint NH40 series, making it easy for direct replacement.

Supports the fire protection linkage function and complies with the GB 50116 standard.

Scenari applicabili: Scenarios with strict fire protection requirements such as domestic hospitals and data centers.

Prezzo di riferimento: Consult via Whatsapp: 8613811255435 (Customized model).

Delivery Cycle: Requires 46 weeks.

3. Nader NDQ3 Series (PCclass ATSE)

Parametri fondamentali:

Corrente nominale: 2000UN (Needs customization, the highest rated current of regular models is 1600A)

Capacità di interruzione: Icw = 12.6kA (Reference value for the 630A model)

Certificazione: Certificazione CCC, UL certification is not explicitly mentioned

Vantaggi:

Progettazione modulare, supports the expansion of communication interfaces (such as Modbus).

Has a relatively high shorttime withstand current, suitable for scenarios with high shortcircuit currents.

Scenari applicabili: Scenarios that require communication functions such as industrial automation and smart grids.

Prezzo di riferimento: Consult via Whatsapp: 8613811255435 (Customized model).

Delivery Cycle: Requires 35 weeks.

1. Alternative Solutions from International Brands
2. Schneider CVS Series (PCclass ATSE)

Parametri fondamentali:

Corrente nominale: 2000UN (Needs customization, the highest rated current of regular models is 1600A)

Capacità di interruzione: Icw = 50kA (For the 1600A model)

Certificazione: UL certification (Applicable in the North American market), Certificazione CE

Vantaggi:

Has UL certification, suitable for the North American market.

Has a strong breaking capacity and can directly replace the NH40SZ series without the need for an additional circuit breaker.

Scenari applicabili: Multinational enterprises, centri dati, ospedali, ecc. in the North American region.

Prezzo di riferimento: Consult via Whatsapp: 8613811255435 (Customized model).

Delivery Cycle: Requires 68 weeks (Import cycle).

2. ABB Tmax XT Series (PCclass ATSE)

Parametri fondamentali:

Corrente nominale: 2000UN (Needs customization, the highest rated current of regular models is 1600A)

Capacità di interruzione: Icw = 50kA (For the 1600A model)

Certificazione: UL certification, Certificazione CE

Vantaggi:

Supports hotswappable modules, making maintenance convenient.

Integrates intelligent monitoring functions and can be managed remotely.

Scenari applicabili: Highend commercial buildings, intelligent manufacturing factories.

Prezzo di riferimento: Consult via Whatsapp: 8613811255435 (Customized model).

Delivery Cycle: Requires 57 weeks (Import cycle).

3. Siemens 5SX Series (PCclass ATSE)

Parametri fondamentali:

Corrente nominale: 2000UN (Needs customization, the highest rated current of regular models is 1600A)

Capacità di interruzione: Icw = 50kA (For the 1600A model)

Certificazione: UL certification, Certificazione CE

Vantaggi:

Complies with the IEC 61850 standard and supports power system integration.

Seismic design, adatto per ambienti difficili.

Scenari applicabili: Special environments such as petrochemical and offshore platforms.

Prezzo di riferimento: Consult via Whatsapp: 8613811255435 (Customized model).

Delivery Cycle: Requires 710 weeks (Import cycle).

III. Solutions Suitable for Special Scenarios

1. Scenarios with High Shortcircuit Currents (such as metallurgy, chemical industry)

Modello consigliato: Chint NZ7 Series (CBclass ATSE)

Parametri fondamentali:

Corrente nominale: 2000UN (Needs customization)

Capacità di interruzione: Icw = 80kA

Certificazione: Certificazione CCC

Vantaggi:

The CB class has shortcircuit breaking capacity and does not require an additional circuit breaker.

The breaking capacity is more than 6 times that of the NH40SZ series.

Prezzo di riferimento: Consult via Whatsapp: 8613811255435 (Customized model).

2. North American Market (Requires UL Certification)

Modello consigliato: Eaton ASCO Series (PCclass ATSE)

Parametri fondamentali:

Corrente nominale: 2000UN (Regular model)

Capacità di interruzione: Icw = 50kA

Certificazione: UL certification, CSA certification

Vantaggi:

High market share in the North American market and perfect technical support.

Supports synchronous switching of dual power supplies, reducing power outage time.

Prezzo di riferimento: Consult via Whatsapp: 8613811255435 yuan.

1. Selection Suggestions and Certification Instructions
2. Prior Selection for Domestic Scenarios:

Costeffectiveness: Delixi CDQ3H series (Low price, fast supply).

Fire Protection Requirements: People’s Electric Appliance RQ3 series (Supports fire protection linkage).

Intelligence: Nader NDQ3 series (Supports communication expansion).

2. Mustchoose for the North American Market:

Schneider CVS series, ABB Tmax XT series (Both have passed UL certification).

3. High Reliability Requirements:

International brands (such as Siemens, Eaton) have better breaking capacity and certification.

4. Certification Precautions:

Domestico: It is necessary to confirm the CCC certification (Essenziale).

America del Nord: It is necessary to have UL certification (Some models require cCSAus dual certification).

Europe: It is necessary to have CE certification (International brands have it by default).

1. Comparison Table of Alternative Solutions

1. Procurement and Technical Support Suggestions
2. Parameter Confirmation:

Require the supplier to provide detailed parameters of the 2000A model (such as Icw, Icm, switching time) to ensure a match with the NH40SZ series.

For domestic brands, it is necessary to confirm whether the breaking capacity meets the load shortcircuit current, and use it in conjunction with a circuit breaker if necessary.

2. Certification Documents:

Per il mercato nordamericano, it is necessary to provide a UL certification certificate, and for the European market, it is necessary to provide CE certification.

3. Compatibilità di installazione:

Confirm that the installation dimensions and wiring methods (frontofpanel/rearofpanel) match the original distribution cabinet.

4. Aftersales Service:

International brands (such as Schneider, ABB) provide global warranty, and for domestic brands, it is necessary to confirm the local service outlets.

5. Emergency Procurement:

Domestic brands (such as Delixi, L’apparecchio elettrico popolare) usually have inventory of large current models, which can shorten the delivery cycle.

It is recommended to first contact the authorized dealer of Chint to confirm the supply status of NH402000/4SZ. If the demand cannot be met, then select a model according to the above alternative solutions. For complex scenarios (such as high shortcircuit currents, the North American market), you can contact the technical teams of brands such as Schneider and ABB to provide customized solutions.