Over- and undervoltage relay
IP 9077

The Over- and Undervoltage relays IL / SL / IP / SP 9077 of the VARIMETER PRO series monitor overvoltage, undervoltage and Phase failure in three-phase or single-phase networks. The measurement is simple and without extensive wiring, as no separate auxiliary supply is necessary. The early detection of up-coming break downs and preventive maintenance avoid expensive damages. As user you profit from the reliability and availability of your plant.

Advantages
. Preventive maintenance
. For better productivity

Features
. According to IEC/EN 60255-1
. Identification of overvoltage, undervoltage and phase failure
. With asymmetry identification as an option
. Mains fault diagnostics with a number of LEDs
. Setting values for overvoltage and undervoltage can be set separately
. Large Setting Ranges 0.9 ... 1.3 UN and 0.7 ... 1.1 UN • Time delay variable between 0.1 ... 20 s
. Closed circuit operation
. No auxiliary voltage
. Independant of phase sequence
. As option with phase sequence detection
. Single-phase connection possible
. Optionally for 3P3W Systems
. 2 changeover contacts, at IP/SP 9077 2 x 2 changeover contacts
. Devices available in 2 enclosure versions:
I-model: depth 59 mm, with terminals at the bottom for installation systems and industrial Distribution systems according to DIN 43880
S-model: depth 98 mm, with terminals at the top for Cabinets with mounting plate and cable duct
. IL 9077, SL 9077: Width 35 mm
IP 9077, SP 9077: Width 70 mm

Technical specifications
Width: 70mm
Operate delay: Yes
Enclosure design: Distribution board
1- / 3-phase: 3, 1
Standard measuring range: 3/N AC 400/230 V
Measuring range max.: 500 V
Output contacts: 2 x 2 C/O contacts
Auxiliary voltage: Without
Type: IP 9077


Manufacturer: E. Dold & Söhne GmbH & Co. KG
Type: IP9077.39 3/N AC400/230V 0,1-20S
Art. No.: 0048222