DSA pressure switch

For single-line lubrication systems

DSA pressure switches monitor pressure in the lubrication system and help ensure its proper operation. They monitor parameters such as pressure increase, flow rate, and pressure decrease, for example, in intermittent lubrication systems with single-line oil metering devices. The switching pressure is factory-set for plug-and-play operation. The pressure sensor cell, containing the diaphragm, and the pressure plunger are assembled with a microswitch in compact plastic housings. The housings are made of fiberglass-reinforced polyamide and include mounting feet for quick and easy installation.

Features and Benefits

Easy to connect and install
Simple and effective design
An economical and market-proven solution
Micro switch for reliable switching function
Selector switch suitable for both normally closed (NC) and normally open (NO) contacts
Factory setting of switching pressure for operation in plug&play mode
Pressure increasing and decreasing versions from 1 to 30 bar (14.5 to 435 psi)

Application areas

Machine tools
Printing machines
Wind energy
Vehicles
Metallurgy and heavy industry

Documentation

Product brochure (207.1 KB)

Description

Technical specifications
Operating principle	pressure switch
Lubricant	oil and liquid lubricant NLGI 000-0, compressed oil-air mixture
Operating temperature	from +10 to +60 °C	from +50 to +140 °F
Working pressure	max 45 bar	max 650 psi
Switching pressure range	1–30 bar	14.5–435 psi
Switch type	microswitch
Contact type	switching
Contact rating	max 125 VA
Switching current	min. 2 mA, max. 300 mA
Switching speed	max 30 switches per minute
Switching voltage	max 250V AC / 30V DC
Electrical connection	DIN EN 175 301-803, plug
Connecting fitting	ø 6 mm; DIN 3862 connector, for solderless pipe coupling, plug-in pipe connector
Materials
Frame	PA6 6GF30
Contacts	AuAg25Pt6
Membrane	FKM (FPM)
Protection class	IP 65
Safety class	II
Dimensions	min. 76 × 120 × 41 mm max 83 × 129 × 41 mm	3.0 x 4.7 x 1.6 inches 3.3 x 5.1 x 1.6 inches
Installation position	any

Sample order
The product can be configured using a configuration code. The order template includes the applicable part number and an explanation.
DSA1-S05W-2M2A	Pressure switch Pressure increase triggering Nominal working pressure 5 bar Electrical connection location: central Electrical connection: M12x1 connector
You can configure your product using the CAD configurator below. This will provide you with a specific order number. More detailed information is available in the product catalog.