描述
PHOENIX UK3N是菲尼克斯电气（Phoenix Contact）推出的一款直通式接线端子，广泛应用于工业控制、配电系统及自动化设备中。以下是其核心功能、技术参数及应用的综合解析：
一、产品概述
类型：直通式接线端子，采用螺钉连接方式，支持导线直接插入并紧固。
型号：UK3N，属于UK系列通用型端子，适用于多种工业场景。
外观与尺寸：宽度5.2mm，高度42.5mm，安装深度根据导轨类型（NS32/NS35）不同为52mm或47mm，颜色为灰色（RAL 7042）。
二、技术参数
电气性能
标称电压：800V AC/DC
额定电流：24A，最大负载电流32A（连接4mm²导线时）
导线截面积：0.2mm²至4mm²，支持柔性导线与刚性导线的混合连接。
安全与认证
阻燃等级：UL94 V0，符合IEC 60947-7-1标准
过电压类别：III级，污染等级3
浪涌电压：8kV（已通过测试）
机械特性
螺纹规格：M3，紧固扭矩0.6-0.8Nm
耐温范围：-60℃至110℃（运行温度，含自加热影响）
三、应用领域
工业控制：配电柜、PLC系统、自动化设备接线
能源电力：发电机组、输配电设备线路连接
交通运输：汽车制造、铁路信号系统
通信设备：基站电源、数据中心配电模块
四、安装与使用
安装要求
适用于DIN导轨NS32、NS35/7.5及NS35/15，需确保电气间隙和爬电距离符合标准。
并排安装时需注意相邻端子的兼容性及散热空间。
接线规范
导线剥线长度建议8mm，需使用M3一字或十字螺钉紧固（十字螺钉可定制）。
支持冷压端子连接，增强导线紧固效果并减少维护风险。
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PHOENIX UK3N is a straight-through terminal block launched by Phoenix Contact,which is widely used in industrial control,power distribution systems and automation equipment.The following is a comprehensive analysis of its core functions,technical parameters and applications:
I.Product Overview
Type:Straight-through terminal block,with screw connection,supports direct insertion and tightening of wires.
Model:UK3N,a universal terminal in the UK series,suitable for a variety of industrial scenarios.
Appearance and size:width 5.2mm,height 42.5mm,installation depth is 52mm or 47mm depending on the rail type(NS32/NS35),color is gray(RAL 7042).
II.Technical parameters
Electrical performance
Nominal voltage:800V AC/DC
Rated current:24A,maximum load current 32A(when connecting 4mm²wire)
Wire cross-sectional area:0.2mm²to 4mm²,supports mixed connection of flexible wires and rigid wires.
Safety and certification
Flame retardant grade:UL94 V0,in accordance with IEC 60947-7-1 standard
Overvoltage category:Class III,pollution level 3
Surge voltage:8kV(tested)
Mechanical characteristics
Thread specification:M3,tightening torque 0.6-0.8Nm
Temperature range:-60℃to 110℃(operating temperature,including self-heating effect)
III.Application areas
Industrial control:distribution cabinet,PLC system,automation equipment wiring
Energy and power:generator set,power transmission and distribution equipment line connection
Transportation:automobile manufacturing,railway signal system
Communication equipment:base station power supply,data center power distribution module
IV.Installation and use
Installation requirements
Applicable to DIN rail NS32,NS35/7.5 and NS35/15,ensure that the electrical clearance and creepage distance meet the standards.
When installing side by side,pay attention to the compatibility and heat dissipation space of adjacent terminals.
Wiring specifications
The wire stripping length is recommended to be 8mm,and M3 flat or cross screws are required to be fastened(cross screws can be customized).
Supports cold-pressed terminal connection,which enhances the wire fastening effect and reduces maintenance risks.
