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Safety switch STAThe robust metal safety switch STA is physically compatible with the proven EUCHNER safety switches TP and STP in the plastic housing. Due to its die-cast aluminum housing and the high degree of protection, IP 67, the switch can withstand even extreme ambient conditions. Like the switches TP and STP, the safety switch STA also has guard locking and guard lock monitoring. A large selection of switching elements is available. The switching contacts can switch a minimum current of 1 mA. The safety switch STA is therefore suitable for use in safe control systems. Features- Robust design
- 3 cable entries
- High degree of protection IP 67
- LED on request
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Customized versionsSafety switch STA-TwinFor protecting double-leaf sliding or hinged doors using only one safety switch - Only one safety switch for both door leaves
- Saving on mounting and wiring
- Optionally with mechanical key release
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Connector Type: With Cable Entry  | Safety switch STA without door monitoring contact |
- Mechanical release on the front
- Without door monitoring contact
Mechanical releaseIs used for releasing the guard locking with the aid of a tool. To protect against tampering, the mechanical release is sealed with sealing lacquer. Solenoid operating voltageGuard locking types| STA1 | Closed-circuit current principle, guard locking by spring force. Release by applying voltage to the guard locking solenoid. | | STA2 | Open-circuit current principle, guard locking by applying voltage to the guard locking solenoid. Release by spring force. |
Switching elements| 4131 | Slow-action switching contact 2 NC + 2 NO |
Order numbers:- 096 439 STA1A-4131A024M
- 096 935 STA2A-4131A024M
| Dimension drawing Please order actuator separately Wiring diagrams Actuator inserted and locked4131  Switching functions STA1/STA2 without door monitoring contact |
 | Safety switch STA with door monitoring contact |
- Mechanical release on the front
- With door monitoring contact
- Plug connector optional
Mechanical releaseIs used for releasing the guard locking with the aid of a tool. To protect against tampering, the mechanical release is sealed with sealing lacquer. Solenoid operating voltageLED function display(optional)A function display (2 LEDs, red and green) is available for the following voltage ranges: Guard locking types| STA3 | Closed-circuit current principle, guard locking by spring force. Release by applying voltage to the guard locking solenoid. | | STA4 | Open-circuit current principle, guard locking by applying voltage to the guard locking solenoid. Release by spring force. |
Switching elements| 2131 | Slow-action switching contact 2 NC + 1 NO + 1 NC (door monitoring contact) | | 4121 | Slow-action switching contact 2 NC + 1 NC / 1 NO (door monitoring contact) | | 4131 | Slow-action switching contact 2 NC + 1 NO + 1 NO (door monitoring contact) | | 4141 | Slow-action switching contact 2 NC + 2 NC (door monitoring contact) |
Order numbers:- 096 936 STA3A-4121A024M
- 096 937 STA4A-4121A024M
- 096 938 STA3A-2131A024M
- 096 939 STA4A-2131A024M
- 099 274 STA3A-4141A024M
- 099 480 STA3A-4131A024M
- 099 481 STA4A-4131A024M
- 100 898 STA3A-4141A024L024M
- 103 926 STA4A-2131A024L024M
- 104 171 STA3A-2131A230M
- 106 535 STA3A-4121A024L024M
- 109 172 STA4A-4141A024M
| Dimension drawing Please order actuator separately Wiring diagrams Actuator inserted and locked2131  4121  4131  4141   | Solenoid monitoring |  | Door monitoring |
Switching functions STA3/STA4 with door monitoring contact |
 | Safety switch STA-TWIN with door monitoring contact |
- Actuating heads made of metal
- Simultaneous monitoring of two safety doors
- Mechanical release on the front
- Mechanical key release optional
- With door monitoring contact
Mechanical releaseIs used for releasing the guard locking with the aid of a tool. To protect against tampering, the mechanical release is sealed with sealing lacquer. Mechanical key releaseAdditional lock on the switch head. Function as for mechanical release. The mechanical key release setting is indicated in the window. Two keys are included. Solenoid operating voltageLED function display (optional)A function display (2 LEDs, red and green) is available for the following voltage ranges: Guard locking types| STA3 | Closed-circuit current principle, guard locking by spring force. Release by applying voltage to the guard locking solenoid. |
Switching elements| 2131 | Slow-action switching contact 2 NC + 1 NO + 1 NC (door monitoring contact) | | 4121 | Slow-action switching contact 2 NC + 1 NC/ 1 NO (door monitoring contact) |
Order numbers:- 105 617 STA-TW-3A-2131AC024M
- 105 888 STA-TW-3A-2131AC024M-S1
- 106 379 STA-TW-3A-4121AC024L024M
- 106 545 STA-TW-3A-4121AC024M
| Dimension drawing Please order actuator separately Wiring diagrams Actuator inserted and locked2131  4121   | Solenoid monitoring |  | Door monitoring |
Switching functions STA3/STA4 with door monitoring contact |
 | Safety switch STA with door monitoring contact, escape release |
- Escape release from the rear
- With door monitoring contact
Mechanical releaseIs used for releasing the guard locking with the aid of a tool. To protect against tampering, the mechanical release is sealed with sealing lacquer. Escape releaseIs used for the manual release of the guard locking from within the danger area without tools. With identification of On/Off position. Solenoid operating voltageGuard locking types| STA3 | Closed-circuit current principle, guard locking by spring force. Release by applying voltage to the guard locking solenoid. |
Switching elements| 2131 | Slow-action switching contact 2 NC + 1 NO + 1 NC (door monitoring contact) |
Order numbers:- 103 660 STA3A-2131A024MC1993
| Dimension drawing Please order actuator separately Wiring diagrams Actuator inserted and locked2131   | Solenoid monitoring |  | Door monitoring |
Switching functions STA3/STA4 with door monitoring contact |
Connector Type: RC18  | Safety switch STA, plug connector RC18, with door monitoring contact |
- Mechanical release on the front
- With door monitoring contact
- Plug connector optional
Mechanical releaseIs used for releasing the guard locking with the aid of a tool. To protect against tampering, the mechanical release is sealed with sealing lacquer. Solenoid operating voltageLED function displayA function display (2 LEDs, red and green) is available for the following voltage ranges: Guard locking types| STA3 | Closed-circuit current principle, guard locking by spring force. Release by applying voltage to the guard locking solenoid. | | STA4 | Open-circuit current principle, guard locking by applying voltage to the guard locking solenoid. Release by spring force. |
Switching elements| 2131 | Slow-action switching contact 2 NC + 1 NO + 1 NC (door monitoring contact) | | 2131 C1826 | Slow-action switching contact 2 NC + 1 NO + 1 NC (door monitoring contact) | | 4141 | Slow-action switching contact 2 NC + 2 NC (door monitoring contact) |
Order numbers:- 099 658 STA3A-2131A024L024RC18
- 100 029 STA3A-4141A024RC18
- 105 303 STA4A-2131A024L024RC18
- 106 622 STA4A-2131A024L024RC18C1826
- 106 623 STA3A-2131A024L024RC18C1826
| Plug connector RC18 18-pin + PE Dimension drawing Please order actuator separately Wiring diagrams Actuator inserted and locked2131  2131 C1826  4141   | Solenoid monitoring |  | Door monitoring |
Switching functions STA3/STA4 with door monitoring contact |
Connector Type: SR11  | Safety switch STA, plug connector SR11, with door monitoring contact |
- Mechanical release on the front
- With door monitoring contact
- Plug connector optional
Mechanical releaseIs used for releasing the guard locking with the aid of a tool. To protect against tampering, the mechanical release is sealed with sealing lacquer. Solenoid operating voltageGuard locking types| STA3 | Closed-circuit current principle, guard locking by spring force. Release by applying voltage to the guard locking solenoid. |
Switching elements| 4121 | Slow-action switching contact 2 NC + 1 NC / 1 NO (door monitoring contact) |
Order numbers:- 105 304 STA3A-4121A024SR11
| Plug connector SR11 11-pin + PE Dimension drawing Please order actuator separately Wiring diagrams Actuator inserted and locked4121   | Solenoid monitoring |  | Door monitoring |
Switching functions STA3/STA4 with door monitoring contact |
Connector Type: M12  | Safety switch STA ASi, plug connector M12 |
- Mechanical release on the front
Mechanical releaseIs used for releasing the guard locking with the aid of a tool. To protect against tampering, the mechanical release is sealed with sealing lacquer. Guard locking types| STA3 | Closed-circuit current principle, guard locking by spring force. Release by control of AS-i output 0. | | STA4 | Open-circuit current principle, guard locking by control of AS-i output 0. Release by spring force. |
Control of the guard locking solenoidThe guard locking solenoid is controlled by the control system via AS-Interface bus bit D0. In addition the 24V connection can be switched safely. AS-Interface inputs| D0, D1 | Door monitoring contact SK | | D2, D3 | Solenoid monitoring contact ÜK |
Evaluation is performed via a safety monitor. AS-Interface outputsLED function display- The Power LED indicates there is operating voltage on the bus.
- The Fault LED indicates if a fault has been detected on the AS-Interface bus.
- The green and the red LEDs can be controlled as required by the control system via the bus using bits D1 and D2.
Order numbers:- 098 993 STA3A-4141A024SEM4AS1
- 105 305 STA4A-4141A024SEM4AS1
| Dimension drawing Please order actuator separately |
Click on the product to view the available accessories! Connector Type: With Cable Entry  | Safety switch STA without door monitoring contact |
Actuator - Actuator S for safety switches SGP/STA/STP/STM
097 861 ACTUATOR S-G-SN-C2115095 738 ACTUATOR S-GT-SN - Actuator S, bent, for safety switch SGP/STA/STP/STM
- Actuator L for safety switches SGP/STA/STP/STM for insertion funnel
- Actuator L, bent, for safety switch SGP/STA/STP/STM for insertion funnel
- Hinged actuator S top/bottom for safety switches SGP/STA/STP/STM
095 315 HINGED ACTUATOR-S-OU-SN - Hinged actuator S left/right for safety switches SGP/STA/STP/STM
096 838 HINGED ACTUATOR-S-LR-SN - Hinged actuator L top/bottom for safety switches SGP/STA/STP/STM for insertion funnel
096 697 HINGED ACTUATOR-S-OU-LN - Hinged actuator L left/right for safety switch SGP/STA/STP/STM for insertion funnel
096 844 HINGED ACTUATOR-S-LR-LN
Bolt - Bolt S-... for safety switches STA, STP, SGP and SGA
096 384 Bolt S-A096 385 Bolt S-C - Bolt STP-GFK for safety switches STA, STP, SGP and SGA
- Bolt BTC-ST/G... without escape release for safety switches STA, STP, SGP and SGA
106 284 Bolt BTC-ST/G-S-TH-00-X
Fastening - Mounting plates EMP-SB for safety switches TP...A, STA, STP and TX
- Mounting plates EMP-B1 for actuators for safety switches TP...A, STA, STP, TX and TZ
- Mounting plates EMP-B2 for actuators for safety switches TP...A, STA, STP, TX and TZ
Add-On - Insertion funnel for safety switches SGP/STA/STP/STM
093 157 Einführtrichter STP/STM - Built-in LED
087 423 LED M20x1,5095 510 LED-F M20x1,5 - Emergency unlocking for safety switches STA
099 876 Notentsperrung STA - Lockout bar STA/STP/SGA/SGP
 | Safety switch STA with door monitoring contact |
Actuator - Actuator S for safety switches SGP/STA/STP/STM
097 861 ACTUATOR S-G-SN-C2115095 738 ACTUATOR S-GT-SN - Actuator S, bent, for safety switch SGP/STA/STP/STM
- Actuator L for safety switches SGP/STA/STP/STM for insertion funnel
- Actuator L, bent, for safety switch SGP/STA/STP/STM for insertion funnel
- Hinged actuator S top/bottom for safety switches SGP/STA/STP/STM
095 315 HINGED ACTUATOR-S-OU-SN - Hinged actuator S left/right for safety switches SGP/STA/STP/STM
096 838 HINGED ACTUATOR-S-LR-SN - Hinged actuator L top/bottom for safety switches SGP/STA/STP/STM for insertion funnel
096 697 HINGED ACTUATOR-S-OU-LN - Hinged actuator L left/right for safety switch SGP/STA/STP/STM for insertion funnel
096 844 HINGED ACTUATOR-S-LR-LN
Bolt - Bolt S-... for safety switches STA, STP, SGP and SGA
096 384 Bolt S-A096 385 Bolt S-C - Bolt STP-GFK for safety switches STA, STP, SGP and SGA
- Bolt BTC-ST/G... without escape release for safety switches STA, STP, SGP and SGA
106 284 Bolt BTC-ST/G-S-TH-00-X
Fastening - Mounting plates EMP-SB for safety switches TP...A, STA, STP and TX
- Mounting plates EMP-B1 for actuators for safety switches TP...A, STA, STP, TX and TZ
- Mounting plates EMP-B2 for actuators for safety switches TP...A, STA, STP, TX and TZ
Add-On - Insertion funnel for safety switches SGP/STA/STP/STM
093 157 Einführtrichter STP/STM - Built-in LED
087 423 LED M20x1,5095 510 LED-F M20x1,5 - Emergency unlocking for safety switches STA
099 876 Notentsperrung STA - Lockout bar STA/STP/SGA/SGP
 | Safety switch STA-TWIN with door monitoring contact |
Actuator - Actuator S for safety switches SGP/STA/STP/STM
097 861 ACTUATOR S-G-SN-C2115095 738 ACTUATOR S-GT-SN - Actuator S, bent, for safety switch SGP/STA/STP/STM
- Actuator L for safety switches SGP/STA/STP/STM for insertion funnel
- Actuator L, bent, for safety switch SGP/STA/STP/STM for insertion funnel
- Hinged actuator S top/bottom for safety switches SGP/STA/STP/STM
095 315 HINGED ACTUATOR-S-OU-SN - Hinged actuator S left/right for safety switches SGP/STA/STP/STM
096 838 HINGED ACTUATOR-S-LR-SN - Hinged actuator L top/bottom for safety switches SGP/STA/STP/STM for insertion funnel
096 697 HINGED ACTUATOR-S-OU-LN - Hinged actuator L left/right for safety switch SGP/STA/STP/STM for insertion funnel
096 844 HINGED ACTUATOR-S-LR-LN
Fastening - Mounting plates EMP-SB for safety switches TP...A, STA, STP and TX
- Mounting plates EMP-B1 for actuators for safety switches TP...A, STA, STP, TX and TZ
- Mounting plates EMP-B2 for actuators for safety switches TP...A, STA, STP, TX and TZ
Add-On - Insertion funnel for safety switches SGP/STA/STP/STM
093 157 Einführtrichter STP/STM - Built-in LED
087 423 LED M20x1,5095 510 LED-F M20x1,5 - Emergency unlocking for safety switches STA
099 876 Notentsperrung STA - Lockout bar STA/STP/SGA/SGP
 | Safety switch STA with door monitoring contact, escape release |
Actuator - Actuator S for safety switches SGP/STA/STP/STM
097 861 ACTUATOR S-G-SN-C2115095 738 ACTUATOR S-GT-SN - Actuator S, bent, for safety switch SGP/STA/STP/STM
- Actuator L for safety switches SGP/STA/STP/STM for insertion funnel
- Actuator L, bent, for safety switch SGP/STA/STP/STM for insertion funnel
- Hinged actuator S top/bottom for safety switches SGP/STA/STP/STM
095 315 HINGED ACTUATOR-S-OU-SN - Hinged actuator S left/right for safety switches SGP/STA/STP/STM
096 838 HINGED ACTUATOR-S-LR-SN - Hinged actuator L top/bottom for safety switches SGP/STA/STP/STM for insertion funnel
096 697 HINGED ACTUATOR-S-OU-LN - Hinged actuator L left/right for safety switch SGP/STA/STP/STM for insertion funnel
096 844 HINGED ACTUATOR-S-LR-LN
Bolt - Bolt S-... with escape release for safety switches STA, STP, SGP and SGA
096 390 Bolt S-AF096 391 Bolt S-CF - Bolt BTC-ST/G... with escape release for safety switches STA, STP, SGP and SGA
106 285 Bolt BTC-ST/G-S-TH-01-F
Fastening - Mounting plates EMP-SB for safety switches TP...A, STA, STP and TX
- Mounting plates EMP-B1 for actuators for safety switches TP...A, STA, STP, TX and TZ
- Mounting plates EMP-B2 for actuators for safety switches TP...A, STA, STP, TX and TZ
Add-On - Insertion funnel for safety switches SGP/STA/STP/STM
093 157 Einführtrichter STP/STM - Built-in LED
087 423 LED M20x1,5095 510 LED-F M20x1,5 - Emergency unlocking for safety switches STA
099 876 Notentsperrung STA - Lockout bar STA/STP/SGA/SGP
- Handle for escape release for safety switch TP/STP/STA
Connector Type: RC18  | Safety switch STA, plug connector RC18, with door monitoring contact |
Actuator - Actuator S for safety switches SGP/STA/STP/STM
097 861 ACTUATOR S-G-SN-C2115095 738 ACTUATOR S-GT-SN - Actuator S, bent, for safety switch SGP/STA/STP/STM
- Actuator L for safety switches SGP/STA/STP/STM for insertion funnel
- Actuator L, bent, for safety switch SGP/STA/STP/STM for insertion funnel
- Hinged actuator S top/bottom for safety switches SGP/STA/STP/STM
095 315 HINGED ACTUATOR-S-OU-SN - Hinged actuator S left/right for safety switches SGP/STA/STP/STM
096 838 HINGED ACTUATOR-S-LR-SN - Hinged actuator L top/bottom for safety switches SGP/STA/STP/STM for insertion funnel
096 697 HINGED ACTUATOR-S-OU-LN - Hinged actuator L left/right for safety switch SGP/STA/STP/STM for insertion funnel
096 844 HINGED ACTUATOR-S-LR-LN
Bolt - Bolt S-... for safety switches STA, STP, SGP and SGA
096 384 Bolt S-A096 385 Bolt S-C - Bolt STP-GFK for safety switches STA, STP, SGP and SGA
- Bolt BTC-ST/G... without escape release for safety switches STA, STP, SGP and SGA
106 284 Bolt BTC-ST/G-S-TH-00-X
Fastening - Mounting plates EMP-SB for safety switches TP...A, STA, STP and TX
- Mounting plates EMP-B1 for actuators for safety switches TP...A, STA, STP, TX and TZ
- Mounting plates EMP-B2 for actuators for safety switches TP...A, STA, STP, TX and TZ
Add-On - Insertion funnel for safety switches SGP/STA/STP/STM
093 157 Einführtrichter STP/STM - Built-in LED
087 423 LED M20x1,5095 510 LED-F M20x1,5 - Emergency unlocking for safety switches STA
099 876 Notentsperrung STA - Lockout bar STA/STP/SGA/SGP
Connector Type: SR11  | Safety switch STA, plug connector SR11, with door monitoring contact |
Actuator - Actuator S for safety switches SGP/STA/STP/STM
097 861 ACTUATOR S-G-SN-C2115095 738 ACTUATOR S-GT-SN - Actuator S, bent, for safety switch SGP/STA/STP/STM
- Actuator L for safety switches SGP/STA/STP/STM for insertion funnel
- Actuator L, bent, for safety switch SGP/STA/STP/STM for insertion funnel
- Hinged actuator S top/bottom for safety switches SGP/STA/STP/STM
095 315 HINGED ACTUATOR-S-OU-SN - Hinged actuator S left/right for safety switches SGP/STA/STP/STM
096 838 HINGED ACTUATOR-S-LR-SN - Hinged actuator L top/bottom for safety switches SGP/STA/STP/STM for insertion funnel
096 697 HINGED ACTUATOR-S-OU-LN - Hinged actuator L left/right for safety switch SGP/STA/STP/STM for insertion funnel
096 844 HINGED ACTUATOR-S-LR-LN
Bolt - Bolt S-... for safety switches STA, STP, SGP and SGA
096 384 Bolt S-A096 385 Bolt S-C - Bolt STP-GFK for safety switches STA, STP, SGP and SGA
- Bolt BTC-ST/G... without escape release for safety switches STA, STP, SGP and SGA
106 284 Bolt BTC-ST/G-S-TH-00-X
Fastening - Mounting plates EMP-SB for safety switches TP...A, STA, STP and TX
- Mounting plates EMP-B1 for actuators for safety switches TP...A, STA, STP, TX and TZ
- Mounting plates EMP-B2 for actuators for safety switches TP...A, STA, STP, TX and TZ
Add-On - Insertion funnel for safety switches SGP/STA/STP/STM
093 157 Einführtrichter STP/STM - Built-in LED
087 423 LED M20x1,5095 510 LED-F M20x1,5 - Emergency unlocking for safety switches STA
099 876 Notentsperrung STA - Lockout bar STA/STP/SGA/SGP
Connector Type: M12  | Safety switch STA ASi, plug connector M12 |
Actuator - Actuator S for safety switches SGP/STA/STP/STM
097 861 ACTUATOR S-G-SN-C2115095 738 ACTUATOR S-GT-SN - Actuator S, bent, for safety switch SGP/STA/STP/STM
- Actuator L for safety switches SGP/STA/STP/STM for insertion funnel
- Actuator L, bent, for safety switch SGP/STA/STP/STM for insertion funnel
- Hinged actuator S top/bottom for safety switches SGP/STA/STP/STM
095 315 HINGED ACTUATOR-S-OU-SN - Hinged actuator S left/right for safety switches SGP/STA/STP/STM
096 838 HINGED ACTUATOR-S-LR-SN - Hinged actuator L top/bottom for safety switches SGP/STA/STP/STM for insertion funnel
096 697 HINGED ACTUATOR-S-OU-LN - Hinged actuator L left/right for safety switch SGP/STA/STP/STM for insertion funnel
096 844 HINGED ACTUATOR-S-LR-LN
Bolt - Bolt S-... for safety switches STA, STP, SGP and SGA
096 384 Bolt S-A096 385 Bolt S-C - Bolt STP-GFK for safety switches STA, STP, SGP and SGA
- Bolt BTC-ST/G... without escape release for safety switches STA, STP, SGP and SGA
106 284 Bolt BTC-ST/G-S-TH-00-X
Fastening - Mounting plates EMP-SB for safety switches TP...A, STA, STP and TX
- Mounting plates EMP-B1 for actuators for safety switches TP...A, STA, STP, TX and TZ
- Mounting plates EMP-B2 for actuators for safety switches TP...A, STA, STP, TX and TZ
Add-On - Insertion funnel for safety switches SGP/STA/STP/STM
093 157 Einführtrichter STP/STM - Emergency unlocking for safety switches STA
099 876 Notentsperrung STA - Lockout bar STA/STP/SGA/SGP
 | Manuals and data sheets |
| Title | Doc. nr. Edition Date | Languages | Document (Downloads) |
|---|
| Operating Instructions STA... Safety Switch | 096775 06 02/11 |   
  | 1270 KB | | Operating Instructions Safety Switch STA-TW... (Twin) | 105875 02 02/11 |   
  | 1782 KB | | Operating Instructions Safety Switches STA...AS1 | 099108 03 11/11 |   | 429 KB |
 | Catalogs |
| Title | Doc. nr. Edition Date | Languages | Document (Downloads) |
|---|
| Busfähige Sicherheitstechnik | 092164 07 08/11 |  | 4544 KB | | Sicherheitsschalter mit Kunststoffgehäuse | 096955 08 08/11 |  | 9312 KB | | Sicherheitsschalter mit Metallgehäuse | 100319 07 08/11 |  | 11788 KB | | Safety Products with Integrated Bus Interface | 092332 07 08/11 |  | 4511 KB | | Safety Switches with Metal Housing | 100369 07 08/11 |  | 11701 KB | | Safety Switches with Plastic Housing | 096956 08 08/11 |  | 8900 KB | | Technique de sécurité compatible avec les bus | 112564 07 08/11 |  | 4593 KB | | Interrupteurs de sécurité avec boîtier plastique | 100677 08 08/11 |  | 9050 KB | | Interrupteurs de sécurité avec boîtier métallique | 100676 07 08/11 |  | 11875 KB | | Interruptores de seguridad con carcasa plástica | 104855 08 08/11 |  | 12478 KB | | Interruptores de seguridad con carcasa metálica | 104856 07 08/11 |  | 12558 KB | | Finecorsa di sicurezza con custodia in plastica | 102281 04 04/07 |  | 12611 KB | | Finecorsa di sicurezza con custodia metallica | 102282 02 02/08 |  | 10016 KB |
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