V4 snap-action switch S880 – Safety in the smallest space
The smallest microswitch in the world with positive opening and self-cleaning contacts
S880 W2G6 a
The housing of this V4 snap-action switch only measures 20 × 9.3 × 6.6 millimetres. Yet the same switch technology as the A-design S870 is achieved in the S880 subminiature switch, including positive opening. This microswitch is therefore recommended for all applications in which secure switch functions have to be achieved in small installation areas.
The user can configure the optimal version from a wide range of various actuators and connections according to the required protection class and the installation situation.
Features
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:
V4 subminiature switches with dimensions pursuant to DIN 41636, design B. Changeover contact with single break.
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.
The moving contact rubs against the fixed contact during every actuation. This removes corrosion and combustion residue and reduces contact resistance.
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.
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.
Contact area IP40 Connections IP00 // Screws M3, flat screw 6.3 × 0.8
Contact area IP60 Connections IP00 // Screws M3, flat screw 6.3 × 0.8
Contact area IP67 Connections IP00 // Screws M3, flat screw 6.3 × 0.8
Contact area IP67 Connections IP67 // Stranded wire, lateral, length 500 mm
Specifications
| Contact configuration | SPDT (Form C) subminiature snap-action switch with 3 terminals, positive opening operation, and wiping action |
| Conv. thermal current Ith EN60947 | 6 A at T = 85°C |
| Conv. thermal current Ith UL508 | 6 A at T = 85°C |
| Rated insulation voltage Ui EN60947 | 250 V at PD2 / 125 V at PD3 (value for IP40/00) |
| Rated insulation voltage Ui UL508 | 300 V |
| Pollution degree IEC 60947 | PD 2 or PD 3 |
| Pollution degree UL508 | PD 3 |
| Rated impulse withstand voltage Uimp | 2.5 kV |
| Utilization category IEC 60947 | AC-15, 230 VAC/1.0 A / DC-13, 60 VDC/0.5 A |
| Utilization category UL508 | 240 V AC/1.0 A / DC 60 VDC/0.5 A (General Purpose) |
| IP rating: contacts/terminals | IP40/IP00, IP60/00, IP67/67, IP67/00 |
| Contact material | Silver or gold |
| Short-circuit protection | 2 A gG |
| Actuator | Push button, roller lever, plain lever, simulated roller lever |
| Free position | 9.10 ±0.15 (push button) |
| Operating position | 8.40 ±0.20 (push button) |
| Release position | 8.55 ±0.20 (push button) |
| Total positive opening travel | 7.35 (push button) |
| Total travel position | 7.15 (push button) |
| Movement differential (between operating and release position) | 0.15 (typical, push button) |
| Front mount | — |
| Ganging (side mount) | yes, side mount |
| Vibration resistance | 50 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 ) |
| Housing material | PC, green transparent / PC, black |
| Mechanical endurance | 1.5 million cycles min. |
| Temperature range | -40 °C … +85 °C |
| Note | Data valid for new switches with silver contacts |
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