The AZM 161 B ST1-AS RP by Schmersal is an electromechanical safety switch with interlocking, designed for use in AS-Interface networks. The switch combines a robust design with advanced safety features to protect movable, removable, and rotating protective devices in industrial applications.

The housing is made of glass-fiber reinforced thermoplastic, making it highly durable and self-extinguishing. The switch operates on the closed-circuit principle and features integrated actuator monitoring, an auxiliary release, and an LED status display. The AZM 161 B ST1-AS RP provides a maximum locking force of 2,600 N and has a mechanical lifespan of at least 1 million operating cycles.

It complies with key safety standards such as EN ISO 13849-1 and is suitable for applications up to Performance Level d and Safety Integrity Level (SIL) 2. The connection is made via a 4-pin M12 plug.

This switch is ideal for applications that require high safety standards and reliable communication via AS-Interface.
Technical Data:

Product Type Designation:

AZM 161 B ST1-AS RP

Article Number (Order Number):

101209095

EAN (European Article Number):

4030661396453

eCl@ss Numbers:

Version 12.0: 27-27-26-03
Version 11.0: 27-27-26-03
Version 9.0: 27-27-26-03

ETIM Numbers:

Version 7.0: EC002593
Version 6.0: EC002593

Certificates:

TÜV
cULus
ASi-SaW

General Data:

Coding Level according to EN ISO 14119:

Low

Operating Principle:

Electromechanical

Material of Housing:

Plastic, glass-fiber reinforced thermoplastic, self-extinguishing

Reaction Time, Maximum:

100 ms

Gross Weight:

450 g

Closed-Circuit Principle:

Yes

Actuator Monitoring:

Yes

Auxiliary Release:

Yes

Integrated Status Display:

Yes

Mechanical Data:

Mechanical Lifespan, Minimum:

1,000,000 operating cycles

Holding Force FZh according to EN ISO 14119:

2,000 N

Maximum Holding Force Fmax:

2,600 N

Mounting:

Screws (3x M6)

Connection Type:

M12 plug-in connector, 4-pin, A-coding

Environmental Conditions:

Degree of Protection:

IP67

Ambient Temperature:

-25 ... +60 °C

Relative Humidity:

30% to 95% (non-condensing, non-freezing)

Electrical Data - AS-Interface:

Rated Operating Voltage:

26.5 ... 31.6 VDC

AS-i Current Consumption:

max. 100 mA

AS-i Specification:

Safety-Slave
Version V 2.1

Included Items:

The actuator is not included in the delivery.

Note:

In case of failure, the switch can be manually unlocked with a triangular key M5 (available as an accessory).