Snap-action switch S804 – Microswitch for medium and high power ranges
Version of the S800 with connections on the side; changeover contact with a contact bridge and positive opening
S804 b Snap-action switch S804 with pushbutton and connections on the side
The S804 snap-action switch offers the switch mechanism of the S800 series in another design – with connections on the side. The mechanical and electrical properties are identical. As with the S800, this microswitch switches medium to high power ranges; the break contacts are secured with a mechanical positive opening. The S804 is therefore suitable for safety applications, such as the monitoring of positions and end positions.
Features
Changeover contact with a solid contact bridge.
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).
Continuous thermal current up to 10 A; disconnecting medium to high power ranges
A contact bridge spreads the breaking capacity over two contact points. The contact material is silver. For the switching of high direct currents, we recommend blow magnets for preventing electric arcs (optional).
Break contacts with positive opening
If the break contacts fuse in the event of a short circuit, the catch spring can no longer open. It is nevertheless opened reliably via the lever of the positive opening. This is a positive opening as outlined in DIN EN 60947-5-1, annex K.
Shock resistance 30 g, vibration resistance 80 g
The switch mechanism of this microswitch has been designed to be especially robust. Catch springs and return springs are designed so that the switching process works reliably even in the event of shocks and vibrations.
Dimensions 36 x 30 x 22 mm (L x H x W)
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
Electrical Data
| Contact configuration | SPDT-DB (Form Za) snap-action switch with double-break contacts, 4 terminals, and positive opening operation |
| 10 A at T = 85°C | |
| 5 A at T = 85°C | |
| 400 V | |
| 300 V | |
| Pollution degree IEC 60947 | PD 3 |
| Pollution degree UL508 | PD 3 |
| 4 kV | |
| Utilization category IEC 60947 | AC-15, 230 VAC/3.0 A / DC-13, 110 VDC/1.0 A |
| Utilization category UL508 | 240 V AC/1.5 A / DC 120 VDC/1.0 A (General Purpose) |
| IP40/IP00 | |
| Contact material | Silver |
| Short-circuit protection | 6 A gL |
Actuators, operating positions
| Actuator | Push button |
| Free position | 13.35 ±0.15 |
| Operating position | 11.10 ±0.35 |
| Release position | 12.30 ±0.35 |
| Total positive opening travel | 10.35 |
| Total travel position | 10.15 min. |
| Movement differential (between operating and release position) | 1.30 (typical) |
Mechanical data
| Front mount | --- |
| Ganging (side mount) | yes, side mount |
| Vibration resistance | 30 g (10 … 500 Hz all directions, without aux. actuator at 0.1 ms max. opening time) |
| Shock resistance | 80 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 |
| Note | Data valid for new switches with silver contacts |
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