Popis
Tento produkt je zastaralý.
Zvažte použití relé série CU-I/J nebo DI pro vaši aplikaci. Mějte však na paměti, že tato relé nejsou přímou náhradou za 2C81.
The 2C81 is a DC current measuring relay. The measured input current is derived from a mV drop across a current shunt. A switchmode power supply provides a very wide auxiliary operatingrange. A relay fail alarm is provided in the form of a C/O contact which is picked up when the auxiliary supply is healthy.
The 2C81 relay may be applied to provide a trip signal to a circuit breaker in a DC system in the event of a short circuit on the downstream side of the CB. An integrated timer may be specified to provide an adjustable delay to allow coordination with other protective devices.
Features
- High sensitivity
- 40-300V DC auxiliary supply Power supply fail relay drops out if the auxiliary supply fails.
- Optional 20-70V DC supply
- Optional mV input ranges
- Custom front dial calibration scale
- Two C/O output contacts
- One C/O fail alarm contact
- Optional delay timer
- Current pick up LED indication
- Power supply healthy LED indication
- Size 2M28-S draw out case
- Made in Australia
