Safety switch STA, plug connector RC18, with door monitoring contact
- Auxiliary release on the front
- With door monitoring contact
- Plug connector M23 (RC18)
- Two LED displays, red and green
- With LED function display
![STA4A-2131A024L024RC18 (Order no. 105303)](https://assets2.euchner.de/files/54/92/ast_735492_xl.png)
Description
Solenoid operating voltage
- AC/DC 24 V +10%, -15%
LED function display
A function display (2 LEDs, red and green) is available for the following voltage ranges:
- AC/DC 24 V +10%, -15%
Guard locking type
STA4 | Open-circuit current principle, guard locking by applying voltage to the guard locking solenoid. Release by spring force. |
Switching element
2131 | Slow-action switching contact 2 NC |
Auxiliary release
This is used for releasing the guard locking with the aid of a tool. To protect against tampering, the auxiliary release is sealed with sealing lacquer.
Functional drawings
![Functional drawings](https://assets2.euchner.de/files/31/69/ast_653169.png)
Dimensional drawings
![Dimensional drawings](https://assets2.euchner.de/files/52/88/ast_635288.png)
1 | Auxiliary release |
2 | Locking screw |
3 | LED indicator |
Connection examples
![Connection examples](https://assets2.euchner.de/files/57/71/ast_655771.png)
![]() | Door monitoring |
![]() | Solenoid monitoring |
Technical data
Approvals
![EAC_RU C-DE.MO05.B.00971/20](https://assets2.euchner.de/files/06/97/ast_630697_m.png)
![DGUV_ET 21013_ET 21014](https://assets2.euchner.de/files/08/40/ast_630840_m.png)
![c_UL_us_E155795_2/4](https://assets2.euchner.de/files/82/74/ast_628274_m.png)
![CCC_2020980305000541_CQC2008010305306207](https://assets2.euchner.de/files/07/52/ast_630752_m.png)
Electrical connection values
Power consumption | 8 W |
Display module | 24 V -15% ... +10% |
Rated insulation voltage Ui | 50 V |
Rated impulse withstand voltage Uimp | 1.5 kV |
Utilization category | |
DC-13 | 4 A 24 V |
AC-15 | 4 A 50 V |
Short circuit protection according to IEC 60269-1 | 4A gG |
Solenoid operating voltage | |
AC/DC | 24 V -15% ... +10% |
Solenoid duty cycle | 100 % |
Switching voltage | |
min. at 10 mA | 12 V |
Switching current | |
min. at 24 V | 1 mA |
thermal rated current Ith | 4 A |
Mechanical values and environment
Approach speed | max. 20 m/min |
Approach direction | A |
Connection type | |
1 x | Plug connector RC18 (18-pin + PE) |
Number of door position NC contacts | 1 |
Number of guard lock monitoring NO contacts | 1 |
Number of guard lock monitoring positively driven contacts | 2 |
Extraction force | 30 N |
Actuation frequency | max. 1200 1/h |
Actuating force | 35 N |
Installation orientation | any |
Insertion depth | 24.5 mm |
Mechanical life | 1 x 10⁶ |
Retention force | 20 N |
Switching principle | Slow-action switching contact |
Degree of protection | IP65 |
Ambient temperature | -20 ... +70 °C |
Material | |
Housing | Alloy - die-cast |
Contact | Silver alloy, gold flashed |
Locking force Fmax | 3000 N |
Locking force FZh | 2300 N |
Guard locking principle | Open-circuit current principle |
Characteristic values according to EN ISO 13849-1 and EN IEC 62061
B10D | Mission time | |
---|---|---|
Monitoring of the guard position | 1.15x107 | 20 y |
Important! Values valid at DC-13 100 mA/24V | ||
Monitoring of guard locking | 1.15x107 | 20 y |
Important! Values valid at DC-13 100 mA/24V |
In combination with actuator ACTUATOR-S-GT-SN
Overtravel | 5 mm |
Accessories
![AE-B-A1-02,0-096230](https://assets2.euchner.de/files/23/83/ast_672383_xs.png)
AE-B-A1-02,0-096230
- Can be used as escape release or emergency release
- no automatic return
- Sheath length 2 m (rope length 6 m)
![AE-B-A1-02,0-F-097747](https://assets2.euchner.de/files/23/83/ast_672383_xs.png)
AE-B-A1-02,0-F-097747
- Can be used as escape release or emergency release
- automatic return
- Sheath length 2 m (rope length 6 m)
![AE-B-A1-03,0-098313](https://assets2.euchner.de/files/23/83/ast_672383_xs.png)
AE-B-A1-03,0-098313
- Can be used as escape release or emergency release
- no automatic return
- Sheath length 3 m (rope length 6 m)
![AE-B-A1-04,0-098314](https://assets2.euchner.de/files/23/83/ast_672383_xs.png)
AE-B-A1-04,0-098314
- Can be used as escape release or emergency release
- no automatic return
- Sheath length 4 m (rope length 6 m)
![AE-B-A1-03,0-F-111233](https://assets2.euchner.de/files/23/83/ast_672383_xs.png)
AE-B-A1-03,0-F-111233
- Can be used as escape release or emergency release
- automatic return
- Sheath length 3 m (rope length 6 m)
![AE-B-A1-06,0-125582](https://assets2.euchner.de/files/23/83/ast_672383_xs.png)
AE-B-A1-06,0-125582
- Can be used as escape release or emergency release
- no automatic return
- Rope length 6 m (without sheath)
![AE-B-A1-06,0-F-124770](https://assets2.euchner.de/files/23/83/ast_672383_xs.png)
AE-B-A1-06,0-F-124770
- Can be used as escape release or emergency release
- automatic return
- Rope length 6 m (without sheath)
Downloads
Complete package
Download all important documents with a single click.
Content:
- The operating instructions and any additions to the operating instructions or brief instructions
- Any data sheets to supplement the operating instructions
- The declaration of conformity
Single Documents
![Doc. no. EDC2539628](https://assets2.euchner.de/files/33/55/ast_2263355_thumb.jpg)
Déclaration UE de conformité
Declaración de conformidad UE
EU-Konformitätserklärung
Dichiarazione UE di conformità
![Doc. no. EDC2539628](https://assets2.euchner.de/files/33/57/ast_2263357_thumb.jpg)
Déclaration UE de conformité
Declaración de conformidad UE
EU-Konformitätserklärung
Dichiarazione UE di conformità
![Doc. no. EDC20001551](https://assets2.euchner.de/files/97/28/ast_2329728_thumb.jpg)
![Doc. no. 2096775](https://assets2.euchner.de/files/57/07/ast_3215707_thumb.jpg)
Mode d’emploi Interrupteur de sécurité STA…
Manual de instrucciones Interruptor de seguridad STA…
Betriebsanleitung Sicherheitsschalter STA…
![Doc. no. 2096775](https://assets2.euchner.de/files/79/90/ast_3157990_thumb.jpg)
![Doc. no. 2096775](https://assets2.euchner.de/files/57/05/ast_3215705_thumb.jpg)
![Doc. no. 2096775](https://assets2.euchner.de/files/57/04/ast_3215704_thumb.jpg)
![Doc. no. 2096775](https://assets2.euchner.de/files/57/06/ast_3215706_thumb.jpg)
Other Documents
![Doc. no.](https://assets2.euchner.de/files/47/50/ast_1214750_thumb.jpg)
![Doc. no.](https://assets2.euchner.de/files/33/67/ast_743367_thumb.jpg)
![Doc. no. 100369](https://assets2.euchner.de/files/82/34/ast_438234_thumb.jpg)
![Doc. no. 100676](https://assets2.euchner.de/files/82/35/ast_438235_thumb.jpg)
![Doc. no. 104856](https://assets2.euchner.de/files/82/38/ast_438238_thumb.jpg)
![Doc. no. 100319](https://assets2.euchner.de/files/82/36/ast_438236_thumb.jpg)
![Doc. no. 102453](https://assets2.euchner.de/files/82/33/ast_438233_thumb.jpg)
![Doc. no. 121650](https://assets2.euchner.de/files/82/37/ast_438237_thumb.jpg)
![Doc. no. 096956](https://assets2.euchner.de/files/78/42/ast_437842_thumb.jpg)
![Doc. no. 100677](https://assets2.euchner.de/files/78/41/ast_437841_thumb.jpg)
![Doc. no. 104855](https://assets2.euchner.de/files/78/40/ast_437840_thumb.jpg)
![Doc. no. 096955](https://assets2.euchner.de/files/78/15/ast_437815_thumb.jpg)
![Doc. no. 116243](https://assets2.euchner.de/files/78/39/ast_437839_thumb.jpg)
![Doc. no. 121649](https://assets2.euchner.de/files/78/43/ast_437843_thumb.jpg)
Ordering data
Ordernumber | 105303 |
Item designation | STA4A-2131A024L024RC18 |
Gross weight | 0,722kg |
Customs tariff number | 85365019000 |
ECLASS | 27-27-26-03 Safety switch with guard control |