Siemens SIRIUS 3SE Position & Safety Switches

The 3SE range covers mechanical position switches, limit switches and safety-rated interlock switches used to detect end positions and to guard doors and covers. We supply plastic and metal enclosure versions, the full set of actuator heads — plunger, roller lever, adjustable rod, rope-pull — and the hinge and tongue-operated safety switches used on machine guards.

SIRIUS 3SE Position & Safety Switches we supply

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What to check before ordering

Frequently asked questions

Can I use a standard limit switch in a safety circuit?

No. A safety circuit requires a switch with positive-opening (direct-opening) contacts, marked as such, and usually a dual-channel arrangement into a safety relay.

Can you match a switch from a photo?

Yes — send a photo of the switch and its label to WhatsApp.

Are actuator heads sold separately?

For most of the range, yes: the enclosure and head can be ordered as separate part numbers, which is often cheaper than replacing the whole switch.

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