What products does Hirotronix supply?

Hirotronix supplies industrial automation sensors, machine safety systems, operator controls, level measurement systems, and automation components.

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Hirotronix is located in Mississauga, Ontario, Canada.

Does Hirotronix provide worldwide service?

Yes, Hirotronix supplies automation and sensor solutions worldwide.

DOLD SL 9071 – Undervoltage Relay

Brand

DOLD

Part number

SL 9071

Order number

0050044

Undervoltage Relay

Preventive maintenance
For better productivity

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Brand	DOLD
Housing width	35 mm
Output contacts	2 C/O contacts
Enclosure design	Switch cabinet
Phases	1, 3
Order number	0050044

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.

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 industrialdistribution systems acc. to DIN 43880
SL 9071: Depth 98 mm with terminals at the top for cabinets with mounting plate and cableduct
Width 35 mm

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
Width	35 mm
Type	SL 9071

Available variants

Contact equipping	2 changeover contacts
Nominal voltage	3/N AC 400 / 230 V
Response value	0,7 Un · 0,7 Un 4% · 0,85 Un · 0,85 Un 4%
Variant	With neutral connection. With asymmetry detection. With neutral conductor monitoring. Without time delay · With neutral connection. Without asymmetry detection. Without neutral conductor monitoring. Without time delay