Product Description in English:

The BNS-B20-12ZG-ST-R is a magnetically operated safety sensor designed for use in safety-critical applications. The robust housing made of glass-fiber-reinforced thermoplastic ensures long service life, while the IP67 protection rating supports operation in harsh environments. With two safety contacts, an additional normally open contact, and an integrated LED status indicator, the sensor ensures reliable state monitoring.

Technical Data:

Product Type Designation:

• BNS-B20-12ZG-ST-R

Order Number:

• 101177734

EAN:

• 4030661309194

eCl@ss Numbers:

• Version 12.0: 27-27-44-01
• Version 11.0: 27-27-24-02
• Version 9.0: 27-27-24-02

ETIM Numbers:

• Version 7.0: EC002544
• Version 6.0: EC002544

Approvals and Standards:

• BG-GS-ET-14
• EN IEC 60947-5-3
• cULus

General Properties:

• Operating Principle: Magnetic
• Installation Conditions: Quasi-flush
• Housing Material: Plastic, glass-fiber-reinforced thermoplastic
• Coding Level: Low
• Gross Weight: 115 g
• Number of Safety Contacts: 2
• Number of Normally Closed (NC): 2
• Number of Normally Open (NO): 1
• Number of Wires: 6

Mechanical Data:

• Actuation Element: Magnet
• Door Stop: Right
• Latching Force: 100 N
• Door Weight, Sliding: Max. 3 kg
• Door Weight, Swinging: Max. 5 kg
• Assured Switching Distance:
- Sao (ON): 0 mm
- Sar (OFF): 22 mm

• Connection Type: M12 Connector
• Dimensions:
- Length: 43.3 mm
- Width: 119.5 mm
- Height: 140 mm


Environmental Conditions:

• Protection Class: IP67
• Ambient Temperature: -25 ... +70 °C
• Storage and Transport Temperature: -25 ... +70 °C
• Vibration Resistance: 10 … 55 Hz, Amplitude 1 mm
• Shock Resistance: 30 g / 11 ms

Electrical Data:

• Maximum Switching Voltage: 24 VDC
• Maximum Switching Power: 0.24 W
• Maximum Switching Current: 0.01 A
• Maximum Switching Frequency: 5 Hz

Status Display:

• LED lights up when the safety door is closed.

Scope of Delivery:

• Actuator not included.

Accessories:

• Recommended Actuator: BNS-B20-B01
• Safety Relay Modules:
- SRB-E-301ST
- SRB-E-201LC


Notes:

• Contact symbols are shown when the protective door is closed.
• Identical contact assignments for versions with or without LED.
• Devices with high switching peaks require suitable protection circuitry.

Wiring Example:

• Contact S21-S22 must be integrated into the safety circuit.