Iran train use IRC-4 cheap connector :

Introduction:

Chongqing Hengtai is main supply railway rolling stock and equipment. the IRC-4 is used in railway, locomotive vehicle,city railway vehicle and industry electric system. Applicable to control signal connectors in tourist vehicles.

The contact type between contact element and wire end :  Cool pressure connection terminal

Connecting the plug and socket is crimping

The connector between plug and socket belongs to three spiral slot 

Connector surfaces are gold plated

The sealing can prevent rainwater

Specification:

environment temperature:-50℃~70℃.

relative humidity:90±3%(when temperature is 25℃)

related current:400A

related voltage:AC 660v

insulation resistance:≥500MΩ

contact resistance:≤3mΩ

withstand voltage:≥3000v 50Hz AC

IP:55

mechanical life:≥500

wire: 150mm2

outside size: