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Schmersal

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Schmersal

Schmersal is a leading German manufacturer of machine safety components, safety switches, and safety monitoring systems for industrial machines and installations. The company, founded in 1945 in Wuppertal, has more than 75 years of experience developing components that meet the most stringent safety standards for machine guarding.

The Schmersal product range includes safety limit switches, magnetic safety interlock switches, safety handles, electrically controlled interlocks, light curtains, area scanners, safety contact mats, safety relays, and safety controllers. Products comply with EN ISO 13849 (PL a-e) and IEC 62061 (SIL 1-3) safety standards for functional machine safety.

Verkopershulp.nl supplies a wide range of original Schmersal safety components for guarding hazardous zones on industrial machines. Our safety specialists advise on the correct safety switch, interlock type, and mounting configuration for your machine guarding.

History

Karl Schmersal GmbH & Co. KG was founded in 1945 by Karl Schmersal in Wuppertal. The company pioneered the development of industrial safety switches for the post-war manufacturing industry. Through decades of product innovation and expansion of the range to light curtains, safety controllers, and complete safety systems, Schmersal has grown into a global supplier of machine safety solutions.

Product Categories

  • Actuator
  • Brake
  • Cable
  • Connector
  • Control Panel
  • Controller
  • Drive
  • Filter
  • Flow Meter
  • Module
  • Motor
  • Proximity Sensor
  • Pump
  • Relay
  • Sensor
  • Servo Motor
  • Solenoid Valve
  • Spring
  • Switch
  • Transmitter
  • Valve

Applications

  • Hazardous zone guarding at robots
  • Machine safety systems for presses
  • Access guarding of machine guards
  • Safety interlocking of machine doors
  • Human-robot collaboration (HRC)
  • AGV and internal transport safety
  • Safety guarding palletizers
  • Loading platforms and scissor lifts
  • Food industry hygienic switches
  • ATEX safety switches

Frequently Asked Questions

What performance level (PL) do Schmersal safety switches have?
Schmersal safety switches are available in various performance levels from PL c to PL e conforming to EN ISO 13849. The required PL depends on the risk assessment of your machine. PL e is the highest level and requires two channels with cross-monitoring.
What is the difference between a mechanical and magnetic Schmersal safety interlock?
Mechanical safety switches have physical contact actuation and are suitable for harsh environments. Magnetic safety switches are activated by a coded magnet actuator; they are non-contact and offer higher manipulation resistance (coding level 1-3).
Are Schmersal light curtains type 4 conforming to IEC 61496?
Yes, Schmersal SLC/SLP series light curtains are certified conforming to IEC 61496-1/-2 type 4 (SIL 3 CL, PL e). They are suitable for finger detection (14mm resolution) or body detection (40mm resolution) depending on the selected version.
Can I connect Schmersal safety components to a safety PLC?
Yes, Schmersal supplies safety switches with standard 2-channel safety outputs (NC+NC or NO+NC) directly connectable to safety relays and safety PLCs from Siemens, Pilz, ABB, and other manufacturers.
How do I choose the correct Schmersal safety door interlock?
Choose based on: required holding force (what weight must the interlock retain?), supply voltage (24V DC standard), contact configuration (NC+NO for monitoring), and IP class (IP65 standard; IP67/IP69K for wet environments).