Omron machine safety equipment
Safety door switches, light curtains, safety relays and controllers, laser scanners and emergency stop buttons – 851 Omron part numbers for protecting people on machines and lines.

Machine safety equipment stops hazardous motion when a person enters a danger zone, opens a guard door or triggers an emergency stop.
The choice of equipment depends on the machine risk assessment and the required safety level – PL according to EN ISO 13849-1 or SIL according to IEC 62061. The safety level of a machine is always assessed for the specific application, not only by the certificate of an individual component.
In addition to supplying equipment, Meridian designs and implements safety functions on machines – from component selection to wiring, safety controller programming and commissioning.
Product groups
- Safety switches (297)
- Safety light curtains and multi-beam barriers (275)
- Programmable safety controllers (3)
- Safety relays (36)
- Flexible safety units (G9SX) (21)
- Non-contact safety switches (124)
- Safety laser scanners (7)
- Safety sensors (1)
- Emergency stop buttons (31)
- Rope pull emergency stop switches (19)
- Safety door switches with locking (34)
- Enabling switches (3)
How to choose the equipment
- Guard doors: safety door switches with or without locking, or non-contact (RFID / Hall) switches that are harder to defeat.
- Opening and area protection: light curtains, multi-beam barriers or safety laser scanners – according to resolution (finger, hand, body) and range.
- Emergency stop: buttons at control stations or rope pull switches along conveyors and lines.
- Safety logic: a safety relay for one or two functions, G9SX flexible units or a programmable safety controller for a larger number of functions.
Series by group
Safety switches
D4B-□N series
20 part numbersLimit switches with a robust metal housing, direct opening mechanism and TÜV approval, suitable for safety and non-safety applications; extended temperature range and longer mechanical life.
All part numbers in the catalogue ›D4BS series
4 part numbersModels with two contacts 1NC/1NO and 2NC in a robust metal housing; 1 or 3 cable entries (M20 or PG13.5), gold-plated contacts as standard for high reliability.
All part numbers in the catalogue ›D4F series
5 part numbersD4F is a family of slim safety limit switches with 2 or 4 built-in contacts; cable versions of various lengths for easy installation and maintenance.
All part numbers in the catalogue ›D4GS series
16 part numbersSafety door switches with two and three contacts in various configurations; 1, 3 or 5 m cable, only 17 mm wide, 1NC/1NO, 2NC, 2NC/1NO and 3NC, front or rear mounting.
All part numbers in the catalogue ›D4N series
48 part numbersSafety limit switches with a plastic housing and positive (direct) opening NC contacts; actuators: roller lever, plunger or spring.
All part numbers in the catalogue ›D4N-□R series
2 part numbersD4N safety limit switches with manual reset function (pull-reset): after actuation the contacts remain open until manually reset.
All part numbers in the catalogue ›D4NH series
27 part numbersSafety hinge switches with a shaft or lever actuator that detect the door opening angle.
All part numbers in the catalogue ›D4NL series
94 part numbersSafety door switches with solenoid or mechanical locking, door and lock monitoring contacts and 1300 N holding force; 24 V DC or 110 V AC solenoid.
All part numbers in the catalogue ›D4NS series
31 part numbersPlastic safety door switches without locking with a key actuator; adjustable head direction, various combinations of NC / NO contacts and cable entries.
All part numbers in the catalogue ›D4SL-N series
41 part numbersSafety door switches with solenoid or mechanical locking, door and lock monitoring contacts and 1300 N holding force.
All part numbers in the catalogue ›F3S-TGR-KM series
6 part numbersF3S-TGR-KM / KH are safety door switches with a stainless steel housing and separately ordered keys (actuators).
All part numbers in the catalogue ›F3S-TGR-KHL series
3 part numbersSafety door switch that keeps medium and large guard doors closed until the hazard has ceased; stainless steel housing for demanding applications in the food and chemical industries, electromagnetic locking, 4NC or 2NC (safety), 1NO (door open), 1NO (lock open).
All part numbers in the catalogue ›Safety light curtains and multi-beam barriers
F3SG-SR/PG series
242 part numbersF3SG-SR safety light curtains (finger, hand, arm / leg and body protection) and F3SG-PG multi-beam safety barriers (perimeter / access protection).
All part numbers in the catalogue ›F3SJ series
33 part numbersF3SJ-A are safety light curtains for finger (Ø14 mm) and hand / arm (Ø30 mm) protection; specific part numbers depending on protective height.
All part numbers in the catalogue ›Programmable safety controllers
G9SP series
3 part numbersStandalone programmable safety controller with local safety inputs and outputs; standard inputs / outputs connect directly, and diagnostics are available via a serial or Ethernet interface.
All part numbers in the catalogue ›Safety relays
G9SA series
20 part numbersCompact, expandable safety relay units: emergency stop units, off-delay units, two-hand controller and expansion units with front connection.
- G9SA-301 AC100-240
- G9SA-301 AC/DC24
- G9SA-301-P DC24
- G9SA-321-T075 AC100-240
- G9SA-321-T075 AC/DC24
- G9SA-321-T075-P
G9SB series
9 part numbersSlim safety relay units with two safety contacts in a 17.5 mm housing and three in a 22.5 mm housing; single-channel / dual-channel input, automatic or manual reset.
- G9SB-2002-A AC/DC24
- G9SB-2002-C AC/DC24
- G9SB-200-B AC/DC24
- G9SB-200-D AC/DC24
- G9SB-3010 DC24
- G9SB-3012-A AC/DC24
G9SE series
4 part numbersCompact safety relay units for emergency stop, door and safety monitoring; models with two or four safety contacts and with off-delay, front Push-In Plus screwless terminals.
All part numbers in the catalogue ›G9SR series
3 part numbersCompact safety relay units for standalone use or as a system with input / output expansion; DIP switch settings, LED diagnostics on the front, Basic unit with long-life solid-state outputs.
All part numbers in the catalogue ›Flexible safety units (G9SX)
G9SX series
21 part numbersFlexible safety units: partial or complete safety system with logical AND connection where the flexibility of a programmable controller is not needed; solid-state outputs, detailed LED diagnostics; non-contact door switch controllers and standstill monitoring unit.
- G9SX-AD322-T150-RC DC24
- G9SX-AD322-T150-RT DC24
- G9SX-AD322-T15-RC DC24
- G9SX-AD322-T15-RT DC24
- G9SX-ADA222-T150-RC DC24
- G9SX-ADA222-T15-RC DC24
Non-contact safety switches
D40A series
3 part numbersD40A is a non-contact door switch with an electronic detection mechanism for more stable operation; two-colour red / yellow indicators, mounting from either side, actuator smaller than the switch.
All part numbers in the catalogue ›D40A-2 series
4 part numbersD40A-2 is a non-contact safety door switch for a wide range of applications; small actuator, up to 30 switches per controller if the risk assessment allows, two-colour indicators.
All part numbers in the catalogue ›D41D series
2 part numbersD41D is an RFID-coded non-contact safety switch with a high coding level that prevents defeating the guard and reduces the risk of human error; suitable for aluminium profiles, glass doors and panels, pairing by teach procedure, three-colour LED diagnostics.
All part numbers in the catalogue ›F3S-TGR-N_C series
44 part numbersNon-contact switches with Hall coding for monitoring guard door status; stainless steel models for the high hygiene requirements of the food industry, up to 20 switches in series, LED for easy diagnostics.
- F3S-TGR-NBPC-21-05
- F3S-TGR-NBPC-21-10
- F3S-TGR-NBPC-21-M1J8
- F3S-TGR-NLMC-21-05
- F3S-TGR-NLMC-21-10
- F3S-TGR-NLMC-21-M1J8
F3S-TGR-N_R series
49 part numbersReed non-contact switches for monitoring guard door status; stainless steel models for high hygiene requirements, up to 6 switches in series.
- F3S-TGR-NBPR-21-05
- F3S-TGR-NBPR-21-10
- F3S-TGR-NCPR-21-05
- F3S-TGR-NCPR-21-10
- F3S-TGR-NLMR-21-05
- F3S-TGR-NLMR-21-10
F3S-TGR-N_M / -N_U series
12 part numbersRFID non-contact switches for monitoring hinged, sliding or removable guard doors; RFID (code) and Hall (distance control) technology, M type (master code) and U type (unique code).
- F3S-TGR-NLPM-21-05
- F3S-TGR-NLPM-21-10
- F3S-TGR-NLPM-21-M1J8
- F3S-TGR-NLPU-21-05
- F3S-TGR-NLPU-21-10
- F3S-TGR-NLPU-21-M1J8
F3S-TGR-S series
10 part numbersF3S-TGR-S_A / S_D are standalone non-contact safety switches with a polyester or stainless steel housing.
All part numbers in the catalogue ›Safety laser scanners
OS32C series
7 part numbersSmall, light, low-power safety laser scanner for collision avoidance, presence and entry detection; type 3 according to IEC 61496-1/-3, 70 combinations of safety and warning zones, safety zone up to 4 m and warning zone up to 15 m.
All part numbers in the catalogue ›Safety sensors
E3ZS series
1 part numberThrough-beam safety sensor for detecting entry into hazardous zones where space is very limited; type 2 according to IEC 61496-1, used with G9SP or NX-S safety controllers, sensing distance up to 3 m.
All part numbers in the catalogue ›Emergency stop buttons
A165E series
8 part numbersA165E is an emergency stop button for a 16 mm mounting hole.
All part numbers in the catalogue ›A22E / A22NE series
23 part numbersA22E / A22NE-P / A22NE-PD are emergency stop buttons with various heads; direct opening mechanism that opens the circuit even with a welded contact, anti-misoperation lock mechanism, lever for easy removal; various contact combinations and accessories.
All part numbers in the catalogue ›Rope pull emergency stop switches
ER series
19 part numbersThe ER series offers a wide range of rope pull switches: from basic models with rope spans up to 40 m to models with stainless steel or robust aluminium housings and spans up to 200 m; optional LED indicator lamp, tension indicator.
- 44506-4010 ER5018-021M
- 44506-4030 ER5018-030M
- 44506-4110 ER5018-021ME
- 44506-4120 ER5018-021NE
- 44506-4130 ER5018-030ME
- 44506-5010 ER6022-021M
Safety door switches with locking
D40ML series
15 part numbersD40ML is a safety switch that combines magnetic locking and RFID technology for high holding force and tamper resistance; stainless steel versions have an IP69K hygienic design, and the LED simplifies diagnostics.
All part numbers in the catalogue ›D41G series
9 part numbersD41G is a safety switch with locking and a wide choice of actuators for different guards; no additional handle required, high holding force prevents heavy guards from opening accidentally; hinged and sliding doors, compatible with 40 mm profiles, individual RFID coding.
All part numbers in the catalogue ›D41L series
10 part numbersD41L is a safety switch with locking, a robust design that is easy to clean and the highest tamper protection; flat surface that does not trap dust and water, resistant to cleaning agents, IP66 / IP67 / IP69, for left and right hinged and sliding doors.
All part numbers in the catalogue ›Enabling switches
A4EG series
3 part numbersA4EG is a hand-held enabling switch for teaching and maintaining robots and machines.
All part numbers in the catalogue ›Need equipment or a solution for machine safety?
Send us part numbers and quantities or describe the machine and its hazards – we help with equipment selection and a quote, and if needed with implementing the safety functions.
info@meridian.ba · +387 66 000 497
Related pages
Solutions: machine safety
Assessment, design and implementation of safety functions on machines.
Open ›Omron catalogue
PLCs, sensors, relays, power supplies, machine vision and servo systems.
Open ›Omron DIN rail power supplies
5–48 V DC power supplies from 15 to 2000 W for control cabinets.
Open ›Data is for information only. For exact technical data of an individual part number, see the manufacturer's datasheet or contact us. Prices and delivery times on request.