Catalogues - snap-switch-with-double-break-nc-s850



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S850

Snap switch with double-break NC contacts and positive opening operation

The new S850 Series snap-action switch from Schaltbau offers a favourably priced, but at the same time safe and reliable alternative to cost-intensive programmable logic professional controllers (PLC). Crucial for the development of the double-break NC switch was the new standard DIN EN ISO 13849, which also forms the basis of a new EC machinery directive. Redundant systems can be realised by means of the S850, because the snap-action switch has two galvanically isolated circuits. Features: • Snap-action switch with positive opening operation • Double-break NC contacts • High resistance to shock and vibration • Manufacturers of actuator options Applications: The switch is typically used for systems and components that require a maximum of safety and reliability such as: • Professional doors of trains • Point controllers • Cranes and manufacturer of hoists

Dimension diagrar						Specifications

42			±0.15				Contact configuration	2 NC, 2 galvanically isolated contact bridges

Conv. thermal current I_1h								10 A at85°C

Rated insulation voltage U at PD3								400 V

Contact material								Silver or gold

	(^) © oo			Actuating force				8.5 N max., no aux. actuator
				Front mounting (M3) Tightening torque 0.7 Nm max. Lateral mounting Tightening torque 1 Nm max.			Release force	1.2 N min., no aux. actuator
							Utilization category	AC15 230 V / 1.5 A DC13 24 V / 1.5 A

							Lag	< 3 ms, when opening contacts between two NC circuits
■I		S SCHALTBAU ©

41							Vibration (IEC 60068-2-6) at 0,1 ms max. opening time	15 g, 10 ... 500 Hz, all directions

50 max.							Shock (IEC 60068-2-27) at 0,1 ms max. opening time	30 g, half sinus
Dimension X Actuator position
								1.5 million cycles
							Mechanical endurance
Circuit diagram				8.85 ±0.15 6.60 ±0.25 5.80 7.80 ±0.25 5.65 1.2 (typical)	Free position Operating position End of positive opening operation Release position Total travel position Differential movement
							Degree of protection (IEC 60529)	Terminals Contacts	IP20 IP40
11
							Temperature range	-55°C ... +85°C
							Approvals

Dimensions in mm

Schaltbau GmbH Hollerithstrasse 6 81829 Munich Germany S1919/0811/0.1 Printed in Germany by Schaltbau GmbH					Phone +49 89 93005-0 Fax +49 89 93005-350 e-mail contact@schaltbau.de Internet www.schaltbau.com			We reserve the right to make technical alterations without prior notice. For updated product information visit www.schaltbau-gmbh.com. Issued March 2009