Over- and undervoltage relay
SL 9077
Article number:
0050636
Type:
SL9077.12/001 3AC115V 0,1-20S
Description
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.
Technical specifications
| 1- / 3-phase: | 1, 3 |
|---|---|
| Auxiliary voltage: | Without |
| Enclosure design: | Switch cabinet |
| Measuring range max.: | 500 V |
| Operate delay: | Yes |
| Output contacts: | 2 C/O contacts |
| Standard measuring range: | 3/N AC 400/230 V |
| Type: | SL 9077 |
| Width: | 35 mm |
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Advantages / Customer benefits
- 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