Snap-action switches, S926 series

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Snap-action switches, S926 series

Công tắc Schaltbau Snap-action switches, S926 series

Specifications

Electrical Data
Contact configuration	SPDT-DB (Form Zb) snap-action switch with double-break contacts, 4 terminals, positive opening operation, wiping action, and 2 galvanically isolated contact bridges
Conv. thermal current I_th EN60947	10 A at T = 85°C
Conv. thermal current I_th UL508	10 A at T = 85°C
Rated insulation voltage U_i EN60947	400 V
Rated insulation voltage U_i UL508	240 V
Pollution degree IEC 60947	PD 3 (except «screw with saddle clamp»: 250 V: PD3 / 400 V: PD2)
Pollution degree UL508	PD 2
Rated impulse withstand voltage U_imp	4 kV
Utilization category IEC 60947	AC-15, 230 VAC/1.0 A / DC-13, 110 VDC/0.5 A
Utilization category UL508	AC 240 V / 1 A general purpose
IP rating: contacts/terminals	IP40/IP00
Contact material	Silver or gold
Short-circuit protection	6 A gR (silver only)
Actuators, operating positions
Actuator	Push button, roller lever
Free position	8.85 ±0.20
Operating position	6.60 ±0.35
Release position	7.80 ±0.35
Total positive opening travel	5.85
Total travel position	< 5.65
Movement differential (between operating and release position)	1.2 (typical)
Mechanical data
Front mount	yes, front mounting by nut retainers M3
Ganging (side mount)	yes, side mount
Actuation speed	max. 1.0 m/s, min. 0.5 mm/s
Vibration resistance	10 g (10 … 500 Hz all directions, without aux. actuator at 0.1 ms max. opening time)
Shock resistance	30 g, half sinus (without aux. actuator at 0.1 ms max. opening time)
Housing material	PEI, amber transparent
Mechanical endurance	10 million cycles min.
Temperature range	-55 °C ... +105 °C max., dependent on version
Note	Data valid for switches with silver contacts. Data valid for new switches under laboratory conditions and at room temperature, unless otherwise mentioned.

Công tắc Schaltbau Snap-action switches, S926 series

Snap-action switches S926 − Variant with ruggedized housing
made from polyetherimide (PEI)

Thanks to the high-performance thermoplastic used as housing material, S926 Series snap-action switches feature both a better resistance to temperature and chemicals as well as a 50% higher impact resistance compared to polycarbonate (PC).
They are ideally suited for applications characterized by harsh environmental conditions. Sharing the same design as the S826 switches, they can easily replace a standard switch without great effort.

Features

Positive opening operation : Reliable interruption even after contact welding, in compliance with IEC 60947-5-1, Annex K
Double break contacts: High switching accuracy and resistance to shock and vibration
Precision switch: High switching accuracy and resistance to shock and vibration
Wiping contacts : Continuous low contact resistance ensures high contact reliability over the entire design life of the switch
Magnetic blowout: Optional blowout magnets to extinguish the arc at higher DC loads
Contact material: Silver or gold