V4 snap-action switch S880 – Safety in the smallest space

The smallest microswitch in the world with positive opening and self-cleaning contacts

S880 W3B6 r
Microswitch S880 with roller lever and strand connection
S880 W2J6 v Z
Microswitch S880 with cam lever and PCB pins
S880 W1G6 a
Microswitch S880 with roller lever and soldering lugs
S880 W2G6 a
Microswitch S880 with pushbutton and soldering lugs. IP67 design (contact area).

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..


Changeover contact in miniature design; dimensions 20 x 9.3 x 6.6 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:


V4 subminiature switches with dimensions pursuant to DIN 41636, design B. Changeover contact with single break.

Break contact 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.

Self-cleaning contacts

The moving contact rubs against the fixed contact during every actuation. This removes corrosion and combustion residue and reduces contact resistance.

Reliable switching of low currents

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.

Shock resistance 50 g, vibration resistance 50 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.

Protection class up to IP67 (contact area and connections)

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

By selecting this option you finish the configuration.



Electrical Data
Contact configurationSPDT (Form C) subminiature snap-action switch with 3 terminals, positive opening operation, and wiping action
Conv. thermal current Ith EN609476 A at T = 85°C
Conv. thermal current Ith UL5086 A at T = 85°C
Rated insulation voltage Ui EN60947250 V at PD2 / 125 V at PD3 (value for IP40/00)
Rated insulation voltage Ui UL508300 V
Pollution degree IEC 60947PD 2 or PD 3
Pollution degree UL508PD 3
Rated impulse withstand voltage Uimp2.5 kV
Utilization category IEC 60947AC-15, 230 VAC/1.0 A / DC-13, 60 VDC/0.5 A
Utilization category UL508240 V AC/1.0 A / DC 60 VDC/0.5 A (General Purpose)
IP rating: contacts/terminalsIP40/IP00, IP60/00, IP67/67, IP67/00
Contact materialSilver or gold
Short-circuit protection2 A gG
Actuators, operating positions
ActuatorPush button, roller lever, plain lever, simulated roller lever
Free position9.10 ±0.15 (push button)
Operating position8.40 ±0.20 (push button)
Release position8.55 ±0.20 (push button)
Total positive opening travel7.35 (push button)
Total travel position7.15 (push button)
Movement differential (between operating and release position)0.15 (typical, push button)
Mechanical data
Front mount---
Ganging (side mount)yes, side mount
Vibration resistance50 g (10 … 500 Hz all directions, without aux. actuator at 0.1 ms max. opening time)
Shock resistance50 g, half sinus (without aux. actuator at 0.1 ms )
Housing materialPC, green transparent / PC, black
Mechanical endurance1.5 million cycles min.
Temperature range-40 °C ... +85 °C
NoteData valid for new switches with silver contacts

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Snap-action switches
V4 snap-action switch S880