关于ABB HD4 Circuit Breaker HD4/P 12.12.32 / 1250 A的详细规格信息，以下是根据公开发布的信息整理的内容：

　　一、基本型号与参数

　　型号：HD4/P 12.12.32 / 1250 A

　　额定电压：12 kV

　　额定电流：1250 A

　　短路开断电流：31.5 kA

　　二、产品特性

　　高性能与中压保护：

　　六氟化硫(SF6)灭弧技术：HD4断路器采用SF6气体作为灭弧介质，具有优异的灭弧性能和绝缘性能，适用于中压电力系统的保护与控制。

　　长寿命与免维护：断路器的触头设计符合IEC62271-100和CEI17-1标准，确保长寿命和免维护的特性。

　　操作机构与灵活性：

　　ESH机械操作装置：通过储能的释放实现不依赖操作员的动作，提高操作的可靠性和安全性。

　　可抽出式设计：断路器可安装在可抽出式小车上，便于维护和更换，提高系统的可用性和灵活性。

　　安全与可靠性：

　　全程机械与电气连锁：确保开关柜的集散式安全装置得以建立，防止不正确的操作，提高操作安全。

　　防跳装置：防止由于电子或机械控制命令引起的重合闸，确保每个合闸操作只能在一个单独的分闸操作后进行。

　　附件与功能扩展：

　　丰富的附件选项：包括并联分闸脱扣器、合闸脱扣器、欠压脱扣器、辅助触点等，满足不同的控制和保护需求。

　　SF6气体控制装置：监测SF6气体的压力和密度，确保断路器的正常运行和安全性。

　　三、适用场景与应用

　　中压开关柜：HD4断路器适用于中压开关柜，如Unigear ZS3.2开关设备，提供可靠的保护和控制功能。

　　电力系统保护：广泛应用于电力、工业、建筑等领域的中压电力系统，保护设备和线路免受过载、短路等故障的危害。

　　四、其他注意事项

　　使用环境：HD4断路器适用于湿热及高盐分气候条件下使用，所有重要零部件都经过特殊处理以耐受恶劣环境。

　　安装与维护：请遵循ABB提供的安装和维护指南，确保断路器的正确安装和定期维护，以延长使用寿命并确保性能稳定。

　　请注意，以上信息基于公开发布的资料整理，具体的技术规格和性能参数可能因产品批次和配置的不同而有所差异。在实际应用中，请参考ABB官方提供的产品手册和技术资料。

Regarding the detailed specification information of ABB HD4 Circuit Breaker HD4/P 12.12.32/1250 A, the following is a compilation based on publicly released information:

1、 Basic Model and Parameters

Model: HD4/P 12.12.32 / 1250 A

Rated voltage: 12 kV

Rated current: 1250 A

Short circuit breaking current: 31.5 kA

2、 Product Features

High performance and medium voltage protection:

Sulfur hexafluoride (SF6) arc extinguishing technology: The HD4 circuit breaker uses SF6 gas as the arc extinguishing medium, which has excellent arc extinguishing performance and insulation performance, and is suitable for protection and control of medium voltage power systems.

Long life and maintenance free: The contact design of the circuit breaker complies with IEC62271-100 and CEI17-1 standards, ensuring long life and maintenance free characteristics.

Operating mechanism and flexibility:

ESH mechanical operating device: By releasing stored energy, it achieves operation without relying on the operator's actions, improving the reliability and safety of the operation.

Withdrawable design: The circuit breaker can be installed on a withdrawable trolley for easy maintenance and replacement, improving the availability and flexibility of the system.

Safety and reliability:

Full process mechanical and electrical interlocking: ensuring the establishment of distributed safety devices for switchgear, preventing incorrect operations, and improving operational safety.

Anti bounce device: prevents reclosing caused by electronic or mechanical control commands, ensuring that each closing operation can only be performed after a separate opening operation.

Attachments and Function Expansion:

Rich accessory options: including parallel release, closing release, undervoltage release, auxiliary contacts, etc., to meet different control and protection needs.

SF6 gas control device: monitors the pressure and density of SF6 gas to ensure the normal operation and safety of circuit breakers.

3、 Applicable scenarios and applications

Medium voltage switchgear: HD4 circuit breakers are suitable for medium voltage switchgear, such as Unigear ZS3.2 switchgear, providing reliable protection and control functions.

Power system protection: widely used in medium voltage power systems in the fields of electricity, industry, construction, etc., to protect equipment and lines from the hazards of overload, short circuit and other faults.

4、 Other precautions

Usage environment: HD4 circuit breaker is suitable for use in humid, hot and high salt climate conditions, and all important components have been specially treated to withstand harsh environments.

Installation and maintenance: Please follow the installation and maintenance guidelines provided by ABB to ensure the correct installation and regular maintenance of the circuit breaker, in order to extend its service life and ensure stable performance.

Please note that the above information is based on publicly available materials, and specific technical specifications and performance parameters may vary due to differences in product batches and configurations. In practical applications, please refer to the product manual and technical information provided by ABB official.