SB473-34 BENDER

Product Dimensions：

The relays of the SB47x series monitor the secondary circuits of welding transformers for

fault voltages. A total of six secondary circuits can be monitored. The versions SB473 and

5B476 can be linked for common alarm messages.

Both measuring connections (z.B. E1/E2) are connected to different points on the same

secondary circuit. Also the two earth connecting terminals are connected to the PE conductor

(PE) at different points. If the measured fault voltage value exceeds the response value,

the alarm LED of the respective measuring circuit lights up and the alarm relay switches.

The alarm relay works in N/C operation so that in the event of supply voltage failure a

message is ensured.

When the fault (touch voltage) has been eliminated, the alarm relay switches back to its

original state and the alarm LED goes out after pressing the reset button.

To ensure a safe condition, the connecting leads to the welding circuits being monitored

and the connecting leads to earth are continuously monitored. If one or several measurement

or earth connections are interrupted, the alarm relay switches.

In addition, the alarm LED ON (interruption earth connection) and/or-the alarm LED of

the respective channel flashes.

The device function can be tested by pressing the test button.

If the SB476 is used in combination with SB473, the SB473 will output a common alarm

for all of the three welding circuits as well as for all connected SB476.The cable length

must not exceed 50 m.

We have the same series of models in stock.  If you don't find the model you need, please contact us and we will provide you with an official quotation！

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Colour：new                             Warranty: 12 months

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