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Snap-action switches, S926 series

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Công tắc Schaltbau Snap-action switches, S926 series
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Công tắc Snap-action switches, S926 series
Better temperature resistance:
-55°C … +105°C, dependent on variant
Better resistance to chemical influences
Better impact resistance
PEI 50% more resistant than PC
SPDT-DB (Form Zb) with double-break contacts
Snap-action switch with 4 terminals
Positive opening operation
Wiping action
2 galvanically isolated contact bridges

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 Ith EN60947

10 A at T = 85°C

Conv. thermal current Ith UL508

10 A at T = 85°C

Rated insulation voltage Ui EN60947

400 V

Rated insulation voltage Ui 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 Uimp

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

Applications

  • Limit switch for use on machines, doors and plant-controls
  • Switches for driver‘s cab of rail vehicles and control panels in cranes
  • Electromechanical switch for automation tasks
  • Safety switch in control units

 

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