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A
L
PE
B
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9. Insulation resistance test
An insulation resistance test must not be performed in an
installation with DAB pumps with the electronics connected,
since this can damage the electronics. If a test is performed,
the pump must be electrically disconnected.
1. Switch off/interrupt supply voltage.
Wait 10 mins. until the voltage has decreased!
2. Remove connections from terminals L, N and PE (
3. Short-circuit terminals L and N with a short wire (A).
4. Test with max. 1500 VAC/DC (B) between terminals
L and PE.
Warning: Testing must on no account be performed
between phases (L) and (N).
Max. permissible discharge current < 20mA.
N
5. Remove test set (B).
6. Remove the short wire (A) between terminals L and N.
7. Connect conductors L, N and PE (
8. Switch on supply voltage.
)
)
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