Snap-action switch S814 – Microswitch for a stack assembly
Changeover contact with a contact bridge, self-cleaning mechanism and pass-through actuating plunger
S814 b
The snap-action switch S814 is a diverse microswitch for medium and low power ranges. The feature is the plunger, which moves through the housing from the top downwards when actuated. This means two S814s can be mounted on top of each other in order to trigger two switching processes with one actuation. The S814 snap-action switch has self-cleaning contacts.
Features
Microswitch with a contact bridge which is guided by a plunger. When this snap-action switch is actuated, the bottom contact pair is opened (connections 1 and 2) and the top one is closed (connections 3 and 4).
In every switching process, the contact bridges rub in a defined fashion on the V-shaped fixed contacts and remove corrosion and combustion residue. Permanently low contact resistances ensure a high level of contact reliability throughout the service life.
With self-cleaning silver contacts, small currents can be connected reliably and frequently. In chemically aggressive environments and with low switching frequencies, we recommend gold contacts.
This is the maximum dimensions of the housing. The dimensions of the actuator and of the connections must be added. For all dimensions and drawings please refer to the following product catalogue:
Specifications
| Front mount | — |
| Ganging (side mount) | yes, side mount |
| Vibration resistance | 20 g (10 … 500 Hz all directions, without aux. actuator at 0.1 ms max. opening time) |
| Shock resistance | 50 g, half sinus (without aux. actuator at 0.1 ms max. opening time) |
| Housing material | PC, green transparent |
| Mechanical endurance | 10 million cycles min. |
| Temperature range | -40 °C … +85 °C |
| Actuator | Push button |
| Free position | 12.6 ±0.2 |
| Operating position | 11.6 ±0.2 |
| Release position | 12.1 ±0.2 |
| Total positive opening travel | — |
| Total travel position | 10.6 min. |
| Movement differential (between operating and release position) | 0.5 (typical) |
| Utilization category IEC 60947 | AC-15, 230 VAC/1.0 A / DC-13, 60 VDC/0.5 A |
| Utilization category UL508 | 240 V AC/1.5 A / DC 120 VDC/1.0 A (General Purpose) |
| IP rating: contacts/terminals | IP40/IP00 |
| Contact material | Silver or gold |
| Short-circuit protection | 10 A gL |
| Contact configuration | SPDT-DB (Form Za) snap-action switch with double-break contacts and 4 terminals |
| Conv. thermal current Ith EN60947 | 10 A at T = 85°C |
| Conv. thermal current Ith UL508 | 5 A at T = 85°C |
| Rated insulation voltage Ui EN60947 | 250 V |
| Rated insulation voltage Ui UL508 | 300 V |
| Pollution degree IEC 60947 | PD 3 |
| Pollution degree UL508 | PD 3 |
| Rated impulse withstand voltage Uimp | 2.5 kV |
| Note | Data valid for new switches with silver contacts |
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