Undervoltage Relay
SL 9071
Article number:
0050044
Type:
SL9071.12 3/N AC400/230V 0,7UN4%
Description
The undervoltage relays IL 9071 and SL 9071 of the VARIMETER series monitor undervoltage, phase failure, asymmetry and missing neutral conductor in three-phase or single-phase networks. The measurement is very 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 |
| Nominal voltage max.: | 3/N AC 500 / 290 V |
| Operate delay: | Yes |
| Output contacts: | 2 C/O contacts |
| Type: | SL 9071 |
| Width: | 35 mm |
Advantages / Customer benefits
- Preventive maintenance
- For better productivity
Features
- According to IEC/EN 60255-1
- Identification of
- Undervoltage
- Phase failure
- Asymmetry also with reverse voltage
- Missing neutral in the system
- Broken neutral on IL/SL 9071
- Neutral exchanged against phase in three-phase systems - Single phase connection possible
- Without separate auxiliary voltage
- Fixed setting value (variable as an option)
- De-energized on trip
- LED indicator
- Independant of phase sequence
- 2 changeover contacts
- Acc. to DIN VDE 0100-710 (for rooms used for medical purposes) as option
- Devices available in 2 enclosure version:
- IL 9071: Depth 61 mm with terminals at the bottom for installations systems and industrial
distribution systems acc. to DIN 43880 - SL 9071: Depth 98 mm with terminals at the top for cabinets with mounting plate and cable
duct - Width 35 mm