JSBT5(T) Safety Relay
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Single Channel Safety Relay
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The JSBT5 is designed to connect safety devices, such as emergency stops, directly in the voltage supply circuit to the relay. Despite a maximum built-in width of 22.5 mm the relay is very powerful.
With 3 NO safety outputs, 1 NC, test input and complete internal supervising, the JSBT5 is quite unique. In addition you can order delayed outputs (JSBT5T).
In order for the safety outputs to close, the supply voltage, e.g. by means of an emergency stop button, must be connected to A1 and A2 and the test input closed. After actuation of the relay the test input can be opened again.
The test input is intended to supervise that 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.
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Applications:
- Emergency Stops
- Interlocked Hatches
Features:
- Single and "dual" channel
- Test/start input
- Width 22.5 mm
- LED indication
- 3 NO/1 NC relay outputs
- (T) = delay outputs 0.5 second
- 12 VDC, 24 VDC/AC
Safety Level
The JSBT5 has a twin and supervised internal safety function. Power failure, internal component faults or external interference cannot result in dangerous functions.
Input via A1 only is not protected from short circuiting, and therefore installation is critical for the safety level to be achieved. To achieve a higher safety level a screened cable can be used and/or connection made to both A1 and A2.
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Regulations and Standards
The JSBT5 is designed and approved in accordance with appropriate standards. Examples of such are: EN 292-1/2, EN 60204-1, EN 954-1.
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Connection Examples
For examples of how our safety relays can solve various safety problems, please see the page of "Connection Examples".
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Approvals
   
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