S800 snap-action switch – Microswitch for medium and high power ranges

Changeover contact with a contact bridge and positive opening

S800 a

Snap-action switch S800 with roller lever

The snap-action switch S800 is a diverse microswitch for medium and high power ranges. When the changeover contact is actuated, the bottom contact pair is opened and the top one is closed. The excellent bouncing action of the S800 is down to its strong catch and return springs. The mechanical positive opening can also reliably disconnect fused break contacts. That’s why S800-series snap-action switches are recommended for safety applications; as end position switches, for example.

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 50 x 36 x 12 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:

(d20_en.pdf)

Specifications

Electrical Data

Contact configuration	SPDT-DB (Form Za) snap-action switch with double-break contacts, 4 terminals, and positive opening operation
Conv. thermal current I_th EN60947	10 A at T = 85°C
Conv. thermal current I_th UL508	5 A at T = 85°C
Rated insulation voltage U_i EN60947	400 V
Rated insulation voltage U_i UL508	300 V
Pollution degree IEC 60947	PD 3
Pollution degree UL508	PD 3
Rated impulse withstand voltage U_imp	4 kV
Utilization category IEC 60947	AC-15, 230 VAC/3.0 A / DC-13, 110 VDC/1.0 A
Utilization category UL508	AC 240 V / 8 A general purpose
IP rating: contacts/terminals	IP40/IP00
Contact material	Silver
Short-circuit protection	6 A gL

Actuators, operating positions

Actuator	Push button, roller lever
Free position	8.85 ±0.20 (push button)
Operating position	6.60 ±0.25 (push button)
Release position	7.80 ±0.25 (push button)
Total positive opening travel	5.80 (push button)
Total travel position	5.65 min. (push button)
Movement differential (between operating and release position)	1.20 (typical, push button)

Mechanical data

Front mount	yes, front mounting by nut retainers M3
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