Solutions for Protecting andManaging the Electrical Network
ITF 113 / 114 / 115
Zero sequence detectors for low voltage networks
ITF 113 is an overcurrent indicator with a short, fixed time delay, detecting very low zero sequence currents.
It embodies a circuit which controls a built-in waring lamp (with hand reset) and provides an output change-over contact that can be used to operate an external auxiliary tripping relay or the coil of a switch.
ITF 114 is identical to ITF 113 except that the neon warning lamp can be mounted externally to the relay.
ITF 115 is the DC version of ITF 113.
PROTECTION FUNCTIONS
- Earth overcurrent [64]
MAIN FEATURES
- Trip time: fixed (0,4 or 1 sec.)
- Aux supply ITF 113/114: 110, 127 or 220Vac
- Aux supply ITF 115: 110 or 220Vcc
- 1 output unit (change-over unit)
- Red lamp for operation indicator mounted in a resetting push-button
downloads
| Device | Doc. Type | Lang. | Ref. | Index | |
|---|---|---|---|---|---|
 |
ITF 113 ITF 114 ITF 115 |
Leaflet | FR | -- | -- |
|
ITF 113 ITF 114 ITF 115 |
User Manual | IT | 1439 | B |
|
ITF 113 | Connection/Definition Diagram | -- | 5795 | E |
|
ITF 115 | Connection/Definition Diagram | -- | 5797 | B |