Connection
6.2 Connections
SENTRON PAC3200
80 Manual, 02/2008, A5E01168664B-04
Supply voltage fuse protection
CAUTION
Damage to the device due to non-fused supply voltage
Damage to the device and the equipment may occur.
Secure the supply voltage with an approved (UL / IEC) fuse:
• SENTRON PAC3200 with multi-range power supply 0.6 A, Type C.
• SENTRON PAC3200 with extra-low voltage power supply 1.0 A, Type C.
If a fusible link is used, a suitable approved (UL / IEC) fuse holder has to be used. In
addition, a suitable isolating device shall be connected upstream in order to permit
disconnection of the device from the power supply.
Protecting the current measuring inputs
DANGER
Electric shock and arc flashover in the case of open transformer circuits
Will cause death, serious injury or considerable property damage.
It is only possible to measure the current with current transformers. The circuits must NOT
be protected with a fuse here! Never open the secondary circuit of the current transformers
under load. Short-circuit the secondary current terminals of the current transformer before
removing the device. The safety information for the current transformers used must be
followed!
Protecting the voltage measuring inputs
CAUTION
Damage to the device due to non-fused voltage measuring inputs
Damage to the device and the equipment may occur.
In the case of a direct connection and transformer connection, the device has to be
safeguarded with an approved (UL / IEC) 10A backup fuse or an approved (UL / IEC) 10 A
miniature circuit breaker.
When using voltage transformers, their secondary connections must never be short-
circuited.
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