Current Asymmetry Relay
IP 9278
Article number:
0057915
Type:
IP9278.12 AC/DC24V AC1-15A 0,1-20S
Description
The current asymmetry relay IP 9278 or SP 9278CT monitors the current symmetry of the 3 phases in three-phase networks. With the integrated current transformers, currents of up to 100 A can be measured. In the event of asymmetry, the changeover relay is switched after the adjustable delay time tv has elapsed. Optionally, the error can be stored.
Technical specifications
| 1- / 3-phase: | 3 |
|---|---|
| Auxiliary voltage: | AC, AC/DC |
| Enclosure design: | Distribution board |
| Measuring range: | AC 1 - 15 A |
| Operate delay: | Yes |
| Output contacts: | 2 C/O contacts |
| Type: | IP 9278 |
| Width: | 70 mm |
Advantages / Customer benefits
- Preventive maintenance
- For better productivity
- Quicker fault locating
- Auxiliary supply and measuring input galvanic separated
- With integrated current transformer
- As option with external remote reset
Features
- According to IEC/EN 60255-1
- IP 9278, SP 9278: 3-phase
- Measuring range
IP 9278, SP 9278: Up to 15 A
SP 9278CT: Up to 100 A - 2 changeover contacts
- Adjustable asymmetry
- Settable time delay
- Energized on trip /x0x (output relay activated in case of error)
- De-energized on trip /x1x (output relay not activated in case of error)
- LED indicators
- With auxiliary voltage
- Width 70 mm