描述
一、产品概述
OMRON MY-4J是一款小型中间继电器，属于欧姆龙MY系列，专为工业控制、电力设备、自动化系统等场景设计。其核心功能为信号放大、电路隔离与负载切换，支持高频率操作和长寿命运行，适用于中功率应用。
二、核心参数与性能
1.基础规格
额定电压：AC/DC 24-240V（支持宽电压范围）
额定电流：触点切换电流5A（阻性负载），3A（感性负载）
触点形式：四开四闭（4PDT），共8组触点（4组常闭+4组常开）
防护特征：封闭式或防尘罩式（根据型号差异）
2.电气特性
接触电阻：≤50mΩ（银触点）或≤100mΩ（银镀金触点）
动作时间：≤25ms
复位时间：≤25ms
操作频率：
机械：18,000次/小时
电气：18,000次/小时（额定负载下）
3.负载能力
负载类型阻性负载（cosφ=1）感性负载（cosφ=0.4，L/R=7ms）
双极触点5A/220VAC、5A/24VDC 2A/220VAC、2A/24VDC
四极触点3A/220VAC、3A/24VDC 0.8A/220VAC、1.5A/24VDC
4.绝缘与耐压
绝缘电阻：≥100MΩ（500VDC测试）
绝缘强度：
线圈与触点间：2,000VAC（50/60Hz，1分钟）
同极触点间：1,000VAC（50/60Hz，1分钟）.
5.环境适应性
工作温度：-55°C至70°C（不结冰）
湿度范围：35%～85%RH
振动与冲击：
破坏性振动：10～55Hz，1.0mm双振幅
破坏性冲击：1,000m/s²（约100G）
1.Product Overview
OMRON MY-4J is a small intermediate relay,belonging to the Omron MY series,designed for industrial control,power equipment,automation systems and other scenarios.Its core functions are signal amplification,circuit isolation and load switching,support high-frequency operation and long-life operation,and are suitable for medium-power applications.
2.Core parameters and performance
1.Basic specifications
Rated voltage:AC/DC 24-240V(supports wide voltage range)
Rated current:contact switching current 5A(resistive load),3A(inductive load)
Contact form:four open and four closed(4PDT),a total of 8 contacts(4 normally closed+4 normally open)
Protection features:enclosed or dust-proof cover type(different according to model)
2.Electrical characteristics
Contact resistance:≤50mΩ(silver contact)or≤100mΩ(silver gold-plated contact)
Action time:≤25ms
Reset time:≤25ms
Operation frequency:
Machinery:18,000 times/hour
Electrical:18,000 times/hour(under rated load)
3.Load capacity
Load type Resistive load(cosφ=1)Inductive load(cosφ=0.4,L/R=7ms)
Bipolar contacts 5A/220VAC,5A/24VDC 2A/220VAC,2A/24VDC
Quadruple contacts 3A/220VAC,3A/24VDC 0.8A/220VAC,1.5A/24VDC
4.Insulation and pressure resistance
Insulation resistance:≥100MΩ(500VDC test)
Insulation strength:
Between the coil and the contact:2,000VAC(50/60Hz,1 minute)
Contacts between the same pole:1,000VAC(50/60Hz,1 minute)
5.Environmental adaptability
Operating temperature:-55°C to 70°C(no freezing)
Humidity range:35%~85%RH
Vibration and impact:
Destructive vibration:10~55Hz,1.0mm Double amplitude
Destructive impact:1,000m/s²(approximately 100G)
