The JSBT5 from ABB is a single channel safety relay designed to connect safety devices directly in the voltage supply circuit to the relay. It has 3 NO safety outputs, 1 NC output, a test input and complete internal supervising. The test input is intended to monitor when contactors or valves have dropped/returned before a new start can be permitted. The test input can also be used for starting and the start button can be supervised.
The JSBT5 has a twin and supervised internal safety function. It operates safely in the event of a power failure, internal component fault or external interference.
Single and dual channel
Test/start input
Width 22.5 mm
LED indication
3NO/1NC relay outputs