Interruttore automatico Chint NBP125-2P/80A

The Chint NBP125-2P/80A is a type of interruttore automatico manufactured by Chint Electric.

Interpretazione del modello: “Cinto” is the English brand name of Chint Group. In “NBP125”, “NBP” is likely the series code for Chint’s specific circuit breaker line; “125” indicates the rated frame current is 125A, meaning the maximum current the breaker’s frame can withstand stably is 125A. “2P” stands for 2 poli, che può controllare contemporaneamente sia il filo sotto tensione che il filo neutro. “80UN” refers to the rated current of 80A, representing the maximum current the circuit breaker can carry safely and stably for a long period.

Caratteristiche funzionali: This model is an external circuit breaker for electricity meters. It is suitable for AC 50Hz circuits with a rated voltage of 230V, providing overload and short-circuit protection. Nel frattempo, as a supporting circuit breaker for smart electricity meters, it is equipped with functions of remote control tripping and automatic closing after fee recharge.

Parametri tecnici: È conforme a standard come GB/T 10963.1 and CQC 1121. The pollution degree is Class 2, the protection class is IP20, the installation category is Class II and III, and the ambient air temperature range is -25°C ~ +60°C.

Aspetto e installazione: It generally adopts a plastic case structure, featuring small size, light weight and easy installation. It is usually installed on a DIN rail and can be conveniently mounted inside a distribution box.

1. Chint Same-Series/Same-Function Alternative Models (Optimal Match)

1. Alternative Models from Other Chint Series (Funzionalmente compatibile)

III. Alternative Models from Other Brands (Compatible with State Grid/Southern Power Grid)

Key Points for Alternative Model Selection

1. Functional Matching: Select external circuit breakers for electricity meters that must have the three core functions: remote control tripping, automatic closing after fee recharge—these are the core features of the NBP series.
2. Parameter Consistency:

Poli: strictly 2P (controlling both live wire and neutral wire at the same time)

Corrente nominale: 80UN (long-term operating current)

Corrente nominale del telaio: ≥ 80A (125A is recommended, consistent with the original model)

Tensione nominale: AC 230V (for single-phase fee control applications)

3. Conformità alla certificazione:

Must have CCC Compulsory Certification and CQC Certification

Comply with the State Grid Technical Specification for External Circuit Breakers of Electricity Meters (Q/GDW 11421-2015)

Pollution degree Class 2, protection class IP20, installation category Class II/III

4. Compatibilità di installazione:

Montaggio su guida DIN standard da 35 mm (consistent with the NBP series)

Width is recommended to be ≤ 36mm (to ensure space compatibility inside the distribution box)

5. Communication Compatibility:

For network management, select models supporting RS485 communication or power line carrier communication

Communication protocols must be compatible with the State Grid/Southern Power Grid power consumption information collection system

Recommendation Priority

1. Chint same-series alternatives (NBP-125NZS/2P 80A): Pienamente compatibile, no need to adjust any wiring or settings
2. Other Chint series (NXB-125(G)/2P 80A): Same brand, qualità affidabile, convenient installation and maintenance
3. Other brands’ State Grid standard models (SCB8ZY-125M/2P 80A): Potentially more cost-effective with fully matching functions