Accessories
4.8 Residual current devices
3VA molded case circuit breakers with IEC certificate
404 Manual, 03/2019, A5E03603177010-03
Sealable protective covers of the residual current device
Contact hazard protective cover over auxiliary contacts
Transparent protective cover over setting buttons
Contact hazard protective cover over main current paths
Transparent protective cover over setting buttons
In order to prevent unauthorized access to the setting buttons for I
Δn
and Δt, the transparent
cover over the settings buttons can be optionally sealed.
In order to protect personnel, it is necessary to seal the transparent protective cover so that
the 30 mA setting range cannot be changed.
Contact hazard protective cover over main current paths including sealing option
After the residual current device RCD310 or RCD510 has been mounted on the 3VA1
molded case circuit breaker or 3VA1 switch disconnector, a contact hazard protective cover
is installed over the main current paths to protect against direct contact. This cover can be
sealed optionally in order to block any attempt to dismantle the residual current device from
the molded case circuit breaker/switch disconnector.
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