2.2.3 Include overcurrent protection and a disconnecting device
An external overcurrent protection device, such as a fuse or a circuit breaker, must be installed on
each mains connection. The recommended fuse rating is 2 A, 600 Vac, 200 kA IR AC, Time Delay, and
Class CC. The device shall be UL Listed, branch circuit type overcurrent protector. You should
consult a qualified electrician to determine the overcurrent protection installation.
Your PQube 3 can share the overcurrent protection device with other loads.
An operator-activated disconnecting device, such as a switch or a circuit breaker, must be installed
on the mains connections. The recommended disconnecting device rating is 600 Vac/dc, Max 30 A,
SCCR: 200 kA This device must be clearly marked as the disconnecting device for your PQube 3 and
must be marked to indicate the disconnection function. Do not install your PQube 3 in such a way
that it becomes difficult to operate this disconnecting device. The disconnecting device must not
disconnect the earth connection. The disconnecting device should be installed near your PQube 3,
within easy reach of the operator.
2.2.4 Protect the Operator from the Hazardous Terminals
IMPORTANT: All high-voltage parts must be covered, including the AC power to your PQube 3. Install
your PQube 3 so that all of the screw terminal blocks are not accessible
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