STM1N-2422B024-L01-M-172829 (Order no. 172829)
Safety switch STM Pro, cable entry M20 x 1.5
- Actuating head made of plastic
- Cable entry M20 x 1.5
- Auxiliary release
- LED indicator
- Closed-circuit current principle

Description
Guard locking principle
Power to unlock: On a guard with guard locking based on the closed-circuit current principle, the guard is locked by spring force until the guard locking solenoid is supplied with power. Unlocking is by solenoid force. The term mechanical guard locking is also used.
LED indicator
The LED indicator illuminates when voltage is applied to the guard locking solenoid.
Switching element
2422 | Slow-action switching contact |
Contacts for guard locking: 2 positively driven contacts | |
Contacts for door monitoring: 1 positively driven contact |
Auxiliary release
The auxiliary release on the front makes it possible to access the machine if there is a malfunction, e.g. a power failure. Unlocking is performed using a tool or a key. The auxiliary release must be protected against misuse (sealing, lacquer).
Scope of delivery
Cable gland included.
Accessories required
Actuator is not included.
Functional drawings

Dimensional drawings

1 | Screw M5 for fixed positioning for safety applications |
2 | LED |
3 | Insertion depth |
4 | Protection against twisting (screw M4) |
5 | Auxiliary release |
6 | Actuator S standard |
7 | Locking screw (M = 0.5 Nm) |
8 | Cable gland |
9 | Cable diameter |
Connection examples

Technical data
Approvals

Electrical connection values
Power consumption | 6 W |
Connection cross section | 0.34 ... 1.5 mm² |
Rated insulation voltage Ui | 250 V |
Rated impulse voltage Uimp | 2.5 kV |
Utilization category | |
AC-15 | 4 A 24 V |
DC-13 | 4 A 24 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 | B |
Connection type | |
1 x | M20 x 1.5 |
Number of door position NO contacts | 1 |
Number of door position positively driven 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 | 2 x 10⁶ |
Retention force | 20 N |
Switching principle | Slow-action switching contact |
Degree of protection | IP67 |
Ambient temperature | -20 ... +55 °C |
Material | |
Contact | Silver alloy, gold flashed |
Housing | Reinforced thermoplastic |
Locking force Fmax | 1000 N |
Locking force FZh | 700 N |
Guard locking principle | Closed-circuit current principle |
Characteristic values according to EN ISO 13849-1 and EN IEC 62061
B10D | Mission time | |
---|---|---|
Monitoring of the guard position | 2x106 | 20 y |
Important! Values valid at DC-13 100 mA/24V | ||
Monitoring of guard locking | 2x106 | 20 y |
Important! Values valid at DC-13 100 mA/24V |
PL | Maximum SIL | Category | Mission time | |
---|---|---|---|---|
Control of guard locking | Depending on external control of guard locking | 20 y |
In combination with actuator ACTUATOR-S-GT-SN
Overtravel | 5 mm |
Accessories
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

Déclaration UE de conformité
Declaración de conformidad UE
EU-Konformitätserklärung
Dichiarazione UE di conformità

Déclaration UE de conformité
Declaración de conformidad UE
EU-Konformitätserklärung
Dichiarazione UE di conformità






Other Documents








Ordering data
Ordernumber | 172829 |
Item designation | STM1N-2422B024-L01-M-172829 |
Gross weight | 0,kg |
Customs tariff number | 85365019000 |
ECLASS | 27-27-26-03 Safety switch with guard control |