176LE008146B
The sentinel Energy trip unit
2.5 Trip unit power supply
Choosing the external 24 V DC supply
An external 24 V DC supply is required to supply the communication accessories and to
guarantee that the measurement, alarm and configuration functions of the Energy trip unit
always function correctly. It is recommended to use a 24 V DC SELV supply (Safety Extra Low
Voltage).
This external supply must be dimensioned adequately to meet the needs of the accessories
connected.
Power consumption of various accessories
sentinel Energy trip unit 60 mA
HTD210H panel display 85 mA
Modbus RTU communication module 14 mA
Modbus TCP communication module 38 mA
OAC alarm output contacts module 34 mA
The HTG911H 24 V power supply fully meets these needs as it is SELV and provides an output
current up to 2.5 A.
N.B.
In addition, it is recommended to use a secure 24 V DC supply to guarantee complete
continuity of service and correct operation even in the event of a failure in the electrical
distribution network.
Reminder:
Minimum circuit breaker conditions for which the measurement, alarm and configuration
functions are available without an external power supply: 3 x 80 A.
DANGER
Risk of serious injury or danger of death.
Ensure that the power supply inlet upstream of the circuit breaker is cut o and isolated
before connecting the accessories and devices for the communication system.
ATTENTION
Please respect the recommendations and instructions for installing the sentinel Energy trip
unit. To do this, please refer to the technical documentation for the range of hw+ circuit
breakers as well as the installation manual supplied with the circuit breaker.
To Next Page
Loading...
Need help?
General
