Dold IP9278.12 AC220-240V AC1-15A ,1-20S, Current Asymmetry Relay, sku: 0059149

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.

• 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