ChargePoint Power Block Design Manual page 40

Shunt Trip Wiring
The Power Block provides a set of unpowered (dry) contacts to connect to an optional shunt trip device.
These contacts are rated to 240 VAC and 6 amps.
Wiring sections to and from the Power Block are deactivated when unsafe conditions are detected, such as
unintended cover panel removal. A breaker reset is required any time the shunt trip is activated.
If installed, each Power Block must be wired to the shunt trip unit of its own upstream circuit breaker.
Upstream AC power must be shut off at the panel to remove shock risk inside the Power Block. All shunt
trip behaviour is already hard-coded into the Power Block and has no programmable variables.
Emergency stop devices are governed by local and regional regulations and may be required in some sites.
If one is required by regulations or by the site, confirm specifications with your ChargePoint representative.
a. Electrical panel
b. Power Block
c. Control voltage supply, maximum 240 VAC
d. Shunt trip circuit breaker
e. Shunt trip coil
f. Auxiliary contacts (closed when main contacts are closed)
g. Three-phase AC main
h. Power Block shunt trip contacts, Normally Open (inside the auxiliary power supply, accessible
on field wiring terminal block)
i. Three-phase Power Block AC input
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