In order to continuously improve the performance of relay in train application,especially to meet the trend of micro current switch,smitt company has developed d-u200n series relay based on d-u200 series relay.Users are welcome to consult and buy:
● The optimized design keeps the relay contacts clean under low current load to ensure reliable operation for a long time.
● QR code management system can scan the logistics of each relay to achieve traceability according to the world recognized GS1 standard.
● There is a white area on the top of d-u200n relay,which is convenient for users to mark/label the relay.
● Minus 50°C is used as the standard working temperature of low temperature relay.
Contact reliability executive standard 1ec 60947-5-4:

The bases of different models determine the installation and wiring mode of the relay.
Installation:
◆ Guide rail
◆ Panel
◆ PCB board installation
Wiring:
◆ Front outgoing line
◆ Back outlet
◆ Tighten the wiring with screws
◆ Wago wiring
◆ Faston wiring,etc

Faults occurring during train operation are often difficult to reappear after returning to the depot,so on-line detection is essential.
The special tool for on-line train detection can monitor the relay circuit while the vehicle is running,so as to find system faults or occasional faults that are difficult to find.
Operation method:pull out the relay,insert the adapter into the socket,and then insert the relay.The adapter is connected to the junction box and can be connected to measuring equipment such as multimeter,oscilloscope or data analyzer,which makes it easy to find the cause of the fault.

◆ the train system can operate normally without being affected
◆ it can monitor the operation of relay:voltage and current of coil and contact
◆ no special equipment required
◆ the equipment can be monitored and collected for a long time without the supervision of staff
◆ compact design,suitable for the narrow space of the train
◆ applicable to all type D(d-dock)or type A/b relays(b-dock)