SMA SB 3000TL-20 Installation - Manual (Page 83)

SMA Solar Technology AG Troubleshooting
Installation Guide SB30TL_40TL_50TL-IA-IEN120231 83
6. Insert an insertion tool into the openings of the
terminal contacts (1).
☑ This releases the terminals.
If you do not receive an insertion tool for operating
the terminal clamps with your replacement
varistors, please contact SMA Solar Technology
AG. As an alternative, the terminal contacts can be
operated using a 3.5 mm wide screwdriver.
7. Varistor entnehmen (2).
8. Insert new varistor (3).
The pole with the small loop (crimp) must be
mounted into terminal A when reinstalling it (3).
9. Attach the lid so that it is in a vertical position.
☑ There is no conducting
connection.
The respective varistor is defective and must be replaced.
Varistor failure is generally due to influences which affect
all varistors similarly (temperature, age, induced
overvoltage). SMA Solar Technology AG recommends
that you replace both varistors.
The varistors are specially manufactured for use in the
inverter and are not commercially available. You must
order replacement varistors directly from SMA Solar
Technology AG (see section 14 ”Accessories”
(page 100)).
• To replace the part, proceed to step 6.
Result Measure