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Undervoltage Relay
SL 9071
- Article number: 0050044
- Type: SL9071.12 3/N AC400/230V 0,7UN4%
The undervoltage relays IL 9071 and SL 9071 of the VARIMETER series monitor undervoltage, phase... more
Product 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
| Width: | 35 mm |
| Operate delay: | Yes |
| 1- / 3-phase: | 1, 3 |
| Nominal voltage max.: | 3/N AC 500 / 290 V |
| Auxiliary voltage: | Without |
| Output contacts: | 2 C/O contacts |
| Enclosure design: | Switch cabinet |
| Type: | SL 9071 |
Advantages
- 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