Schmersal BNS Schmersal Machine Safety Switches and Safety Relays

Razz Middle East supplies Schmersal machine-safety components across Saudi Arabia. The family covers coded magnetic and RFID interlocks, safety position switches, solenoid guard locks, safety relay modules and optoelectronic guarding. Devices such as BNS and BPS magnetic sensors, RSS260 coded interlocks and SRB relay modules are sourced to order and delivered duty-paid to site.

Schmersal BNS

This page covers Schmersal part number BNS — Schmersal Machine Safety Switches and Safety Relays. Quote the full part number with your enquiry and the item is unambiguous: one part number identifies one exact product variant, including options that are not visible in the description.

About Schmersal Machine Safety Switches and Safety Relays

Schmersal builds devices that tie a guard door, gate or light-curtain opening to the machine's safe state. Magnetic sensors in the BNS and BPS families use a coded actuator and reed contacts, so the switch cannot be defeated with a plain magnet. The RSS260 series replaces that with an RFID transponder pair, giving individually coded or uniquely coded operation and series wiring that lets several doors share one diagnostic line. Solenoid interlocks add a locking bolt so a door stays shut until stored energy has run down. On the control side, SRB relay modules evaluate the sensor contacts, check for cross-faults and short circuits, and switch redundant output contacts to drop the machine's contactors. Light curtains and safety light barriers cover openings that cannot be physically fenced. Part numbers encode the sensor style, actuator coding, cable or connector exit and contact configuration, so two devices that look alike can behave differently in a safety circuit.

Schmersal Machine Safety Switches and Safety Relays in Saudi Arabia

Machine guarding is a routine requirement on Saudi production lines. Schmersal devices appear on food and beverage filling and packaging machines in Riyadh and Jeddah, on cement plant conveyors and crushers, on plastics and converting machinery in Jubail and Yanbu, and on packaging cells in pharmaceutical and dairy plants. Bottling and palletising cells use coded interlocks on access doors; conveyor guard hoods and crusher inspection hatches use guard-locking versions because the drive coasts after power is removed. Control circuits are built around 24 V DC safety relays fed from panels running on 380/400 V, 60 Hz supplies. Plants working to Aramco and SABIC contractor safety requirements normally specify coded, non-defeatable interlocks rather than plain limit switches, and ask for documented safety-circuit evaluation.

Ordering and lead time

Quote the full Schmersal ordering code. Between two variants of the same family the actuator coding, contact arrangement, cable length or connector type, and whether the unit is a plain interlock or a guard-locking version all change the part number, and a replacement with the wrong coding will not pair with the existing actuator. For SRB relay modules, state the coil voltage and the number of safety and auxiliary contacts. Where a device is being replaced, the code printed on the unit or listed on the machine's electrical schedule is the safest reference. Schmersal items in this catalogue are sourced to order with a lead time of about three weeks and delivered duty-paid to site in Saudi Arabia.

Specifications are taken from the supplier's published catalogue data. Confirm against the manufacturer's current datasheet before ordering.