Neutral Monitor
SL 9069

The IL/SL9069 neutral monitors in the VARIMETER series monitor the neutral conductor in electrical systems and three-phase networks. Monitoring is simple and does not require a great deal of wiring, as no auxiliary voltage is required. The detection of a missing neutral conductor, a phase or a reversal of the neutral conductor with a phase prevents costly damage and as a user you benefit from the operational safety and high availability of your system.

Advantages
. Protects systems from damage caused by excessively high or low voltages with unbalanced loads
. Preventive maintenance
. For better productivity

Features
. According to IEC/EN 60255-1
. Detection of
- Missing neutral in the system
- Broken neutral on IL/SL 9069
- Neutral exchanged against phase
. Detection of phase failure also with disconnected load
. For 3-phase systems
. De-energized on trip
. LED indicator for operation/state of output contacts
. Single phase connection possible
. Without auxiliary voltage
. 2 cangeover contacts
. Optionally with adjustable asymmetry detection and on delay
. Devices available in 2 enclosure version:
IL 9069: Depth 59 mm with terminals at the bottom for installations systems and industrial distribution systems according to DIN 43880
SL 9069: Depth 98 mm with terminals at the top for cabinets with mounting plate and cable duct
. Width 35 mm

Technical specifications
Width: 35mm
Operate delay: Yes
Enclosure design: Switch cabinet
1- / 3-phase: 3
Standard measuring range: 3/N AC 400/230 V
Measuring range max.: 415 V
Output contacts: 2 C/O contacts
Type: SL 9069


Manufacturer: E. Dold & Söhne GmbH & Co. KG
Type: SL9069.12 3/N AC220/127V
Art. No.: 0050635