JB400

The JB400 offers spur protection against short circuits (between + and – terminals), limiting the short circuit current in each spur. During a short circuit situation there is no effect in the other spur or the main trunk. There is a LED to indicate short circuits and JB400 has an integrated bus terminator in the models F and P.
 
In normal operation, each short circuit protector consumes less than 3 mA. After removing the short circuit, the spur goes back to normal operation, the protection circuit is disabled and the LED is dimmed.

Main Characteristics

• Intelligent Junction Box for fieldbus installations in compliance with the IEC61158-2 standard (PROFIBUS PA and FOUNDATION^™ fieldbus);
• 4, 6 or 8 spurs;
• Intelligent protection against short circuit in each spur, preventing the short circuit propagation. After removing the short circuit, the spur goes back to normal operation;
• Quick and easy installation;
• Maintenance during operation.

To better serve your application, the intelligent junction box JB400 is available in the following models:
 
F – For FOUNDATION™ fieldbus networks
P – For PROFIBUS PA networks
 
See separately their technical characteristics.

CHARACTERISTICS

ENVIRONMENTAL CONDITIONS

DIMENSIONS AND WEIGHT