行业组件数据 · 2026

端子板

A terminal board is an insulated mounting platform with multiple connection points for organizing and securing electrical wires in industrial equipment.

技术定义与适配语境
典型 端子板 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

A terminal board, also known as a terminal block or connection strip, is a modular, insulated device used in electrical systems to create secure, organized connections between multiple wires. In industrial applications like main transformers, it provides a centralized point for connecting incoming and outgoing circuits, facilitating maintenance, testing, and circuit modifications while ensuring electrical isolation and safety.

组件规格

定义
A terminal board, also known as a terminal block or connection strip, is a modular, insulated device used in electrical systems to create secure, organized connections between multiple wires. In industrial applications like main transformers, it provides a centralized point for connecting incoming and outgoing circuits, facilitating maintenance, testing, and circuit modifications while ensuring electrical isolation and safety.
工作原理
The terminal board operates by providing metal terminals (usually made of copper or brass) embedded in an insulating base (typically thermoplastic or thermoset material). Wires are secured to these terminals via screws, clamps, or spring mechanisms, establishing electrical continuity between connected circuits while preventing short circuits and maintaining proper insulation resistance.
材料
Base: Polyamide (PA66)phenolic resinor polycarbonate with UL94 V-0 flame retardant rating. Terminals: Electrolytic copper (Cu-ETP) or brass with tin or nickel plating for corrosion resistance. Screws: Steel with zinc or chrome plating.
IP Rating
IP20 (standard) to IP67 (protected)
Mounting Type
DIN rail (TS35/TS32), panel, or PCB
Current Rating
10A to 300A
Voltage Rating
Up to 1000V AC/DC
Wire Size Range
0.5 mm² to 150 mm²
Dielectric Strength
3000V AC for 1 minute
Insulation Resistance
>1000 MΩ
Operating Temperature
-40°C to +120°C
标准
ISO 9001IEC 60947-7-1UL 1059DIN 46277

行业分类与别名

端子板 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Loose terminal screws due to vibration or improper torque->Increased contact resistance leading to overheating and potential fire->Use spring-clamp terminals, apply correct torque during installation, and implement regular maintenance checks
Moisture ingress or chemical exposure->Corrosion of terminals, reduced conductivity, and insulation breakdown->Select IP-rated or sealed terminal boards, use protective coatings, and control environmental conditions
Overloading beyond current rating->Melting of insulation, terminal damage, and circuit failure->Properly size terminal boards for expected load, install overcurrent protection devices, and monitor operating conditions

工业生态与工程逻辑

0
Electrical shock from exposed terminals
1
Overheating due to loose connections or overcurrent
2
Short circuits from insulation failure
3
Corrosion leading to increased resistance

合规与检测

tolerance
Terminal position tolerance ±0.5mm, screw torque tolerance ±10% of specified value
test method
Dielectric strength test per IEC 60947-7-1, current carrying capacity test at rated current until thermal equilibrium, insulation resistance test at 500V DC

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the difference between a terminal board and a terminal block?

A terminal board typically refers to a larger assembly with multiple terminals mounted on a single base, often used in panels, while a terminal block is a modular single unit that can be combined on a DIN rail. In practice, the terms are often used interchangeably.

How do I select the right terminal board for a main transformer?

Consider the transformer's voltage and current ratings, environmental conditions (temperature, humidity), required safety certifications (e.g., UL, IEC), wire sizes, and mounting method. Always consult the transformer manufacturer's specifications.

Can terminal boards be used in high-vibration environments?

Yes, but choose models with vibration-resistant features like spring-clamp terminals, locking screws, or additional securing brackets to prevent loosening.

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CNFX Industrial Component Index · 电气设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: 端子板

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URN:CNFX:ME:UNIT:TERMINAL_BOARD