Group: Schaltbau GmbH
Catalog excerpts
Connect - Contact - Control 2 More information here: schaltbau-gmbh.com Snap-Action Switches
Open the catalog to page 1WE GUARANTEE DOUBLE SAFETY According to the internationally accepted rules of scuba diving it is not allowed for safety reasons to dive without a buddy (second diver). Likewise, Schaltbau has developed such a buddy for the micro switch since 1975: a snap-action switch with double-break contacts and positive opening operation, which guarantees that the contacts will open, even when they have become welded together or the spring of the snap mechanism has broken. So there is a reliable alternative to the micro switch – the switch with double safety from Schaltbau.
Open the catalog to page 2SNAP-ACTION SWITCHES Featuring double-break contacts and positive opening operation, snap-action switches from Schaltbau have proven for 40 years to be the ideal components for failsafe systems. Both a high breaking capacity and up to 10 million operating cycles provide solid reasons to make Schaltbau switches the components of choice for realising the functional safety of machines and systems. For further information visit www.schaltbau.info/switches
Open the catalog to page 3Snap-action switches I Page 4 Glossary :: Snap-action switches Snap-action switch a switch with snap-action mechanism which is directly operated by a defined force through a defined travel. The resulting indirect contacting action may be such that the speed of the contacting is independent of the speed of the actuation. [IEV 581-10-03] Contact elements are classified as follows: Form A SPST-NO Single gap contact element with 2 terminals. Form B SPST-NC. Single gap contact element with 2 terminals. Form X SPST-DB-NO Double gap contact element with 2 terminals. Form Y SPST-DB-NC...
Open the catalog to page 4Page 5 I Snap-action switches The production facilities of Schaltbau GmbH have been IRIS certified since 2008. Certified to DIN EN ISO 14001 since 2002. For the most recent certificate visit our website. Schaltbau GmbH manufactures in compliance with RoHS. Certified to DIN EN ISO 9001 since 1994. For the most recent certificate visit our website. Positive opening operation Silver or gold contacts Wiping double-break contacts The movement of the positive opening levers 1 at pivot point 2 causes plunger 6 to move upwards, resulting in the forced disconnection of contact bridge 5 from the NC...
Open the catalog to page 5Snap-action switches I Page 6 Snap-action switches with positive opening operation Snap-action switches with positive opening operation Snap-action switch with plunger running full-length through the switch Schaltbau S800 Series snap-action switches have been in use for decades and proved their reliability in innumerable applications. They feature double-break contacts, snap-action mechanism and positive opening operation which ensures a forced breaking of the normally closed contacts in case of spring failure or contact welding due to a short-circuit. This makes them ideally suited for...
Open the catalog to page 6Page 7 I Snap-action switches Switches with positive opening operation and wiping doublebreak contacts Variant with ruggedised housing made from polyetherimide (PEI) S826 Series switches feature galvanically isolated contact bridges that make it possible to control two separate load circuits with independent voltage levels at the same time. This makes them ideally suited for automation tasks with separate electric loads. The wiping, double-break contacts ensure high reliability even at low electrical loads. Switches with gold contacts are particularly suitable for low currents and...
Open the catalog to page 7Snap-action switches I Page 8 Series S820 Snap-action switches with enhanced current-carrying capacity Enabling switches for manual control units of industrial robots S820 switches add a more ruggedised design to the well proven standard snap-action switches with positive opening operation, featuring a currentcarrying capacity which is twice as high (Ith = 20 A). Consequently, the switch should only be used for higher loads. The S820 Series switch is a Form Z circuitry SPDT-DB. Its two mechanically linked rigid contact bridges are electrically separated, making it especially suited for...
Open the catalog to page 8Page 9 I Snap-action switches Single-break snap-action switches with positive opening operation and self-cleaning contacts Snap-action switches with positive opening operation and self-cleaning double-break contacts S840 Series snap-action switches feature VDE-approved positive opening operation, which guarantees a reliable opening of the NC contact even when welded due to a short-circuit or overload current. Self-cleaning, wiping contacts ensure high reliability even at low electric loads. The snap mechanism allows for fast and precise switching at a speed essentially independent of the...
Open the catalog to page 9Snap-action switches I Page 10 Snap-action switches with positive opening operation and self-cleaning contacts Variant with ruggedised housing made from polyetherimide (PEI) Self-cleaning contacts and protection against dust, humidity and polluting agents allow high reliability even at low contact load. In telecommunications and automation the S870 is used for switching low voltages and currents. Its compact dimensions, protection class up to IP67 and special variants, e.g. with pre-assembled cable, make this switch suitable for a wide range of applications. Thanks to the high-perfomance...
Open the catalog to page 10Page 11 I Snap-action switches The world's smallest snap switch with positive opening operation Snap-action switches with double NC contacts Two safety switches in one housing Schaltbau subminiature S880 snap-action switches feature both wiping, selfcleaning contacts as well as a positive opening function. Minimum size in combination with maximum reliability make this V4 snapaction switch ideally suited for a host of applications such as a safety limit switch in medical engineering or limit switch for machine, door and system control projects or in the driver‘s consoles of locomotives....
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