Pfeiffer Vacuum

Oil level switch OLS 4


  • Open status when below oil level
  • Closed status when above oil level
  • Supplied with all necessary components for installation on the oil casing.
  • For Pascal 2005, Pascal 2010, Pascal 2015, Pascal 2021, Pascal 1015 SD, Pascal 1015 I
  • Monitors operating fluid level
  • Mounted at the sight glass
  • Customer benefit: Higher operational safety, identification of upcoming dry running

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Order number: 104376
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Technical data
Cable length 1 m
Contact Normally open
Current max. 500 mA
For pump Pascal 2005 - Pascal 2021
Material Stainless steel/aluminum
Monitored Features Operating fluid level
Number of ports 2
Power-off Level < MIN
Power supply voltage 250 V DC
Switching power max. 10 VA 250 V AC/DC 0.5 A
Weight 0.85 kg | 1.87 lb


File Type Language Date Filesize Action
Data sheet PDF EN 04-21-2018 ~ 386.5 KB Download

File Type Language Date Filesize Action
Operating instructions OLS4 Oil level switch (104247OEN_06) PDF EN 02-08-2017 ~ 651.7 KB Download

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Your local contact

Pfeiffer Vacuum Inc.
24 Trafalgar Square
NH 03063-1988 Nashua

T: +1 (800) 248-8254
F: +1 (888) 658-7983

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