Overcurrent protection relay with a switched auxiliary power supply (110-230 Vac/90-220 Vdc and optional 48 Vdc)
Can be temporarily supplied by an external battery
Events can be recorded (optional) and specific test menu is provided depending on the model
High electromagnetic compatibility
Reduced depth of 75 mm makes it easy to install
Ideal for transformation and distribution centres with auxiliary power supplies and/or rechargeable batteries
Fitted with 2 67 N neutral directional units
4 inputs and 4 outputs configurables
Indicates the cause of the trip even though the relay loses the supply (bistable magnetic indicators)
Osillography is available
LCD screen allows the parameters to be set and monitored
RS 232 serial port on the front and real RS 485 port on connection terminals. The ModBus RTU protocol is implemented for both ports
Functions diagram
Connections diagram
Technical param.
Dimensions
Communications
The relays have an RS-232 serial port on the front of the equipment with a DB9 connector and an optional rear RS-485 port on connection terminals. The Modbus RTU protocol is implemented for both ports.
The SICom programme with WindowsÆ 2000/XP uses a graphic user interface to allow you to access all equipment information, modify the settings and save events.
The programme can be used locally by using the front port or remotely by using the rear RS485 port.
There are 4 levels of access with user-definable codes.
Accessories
BATTERY POWER SUPPLY KITCOM
Adaptor that lets you connect two batteries AAA type of 1,5V to the SIA relays using the front RS232 communications port.
The adaptor allows the use of a 12V battery power supply and communication through the port at the same time.
Ensures full operability of the SIA, even when tripping in case of a fault.
STRIKER PRT
This is a single effect solenoid. The striker is spring operated.
The striker is activated is activated by low-power polarised electrical signal supplied by the relay in case of a fault.
The striker is reset to its starting position manually.
Travel: 8 mm
Spring strength:
Start of travel: 37 N
End of travel: 18 N
Response time: 4 ms
Protection rating: IP-40
TRIP ADAPTOR TCM
This item is connected to the relay trip outlet and supplies the energy needed to trip the coil.
It is loaded using the auxiliary 230 Vac voltage of the transformation centre and retains power for up to 3 days without external power supply.
50P, 50N, 51P and 51N protection functions
BATTERY POWER SUPPLY KITCOM
