SR BD41AN1 Pizzato Safety magnetic sensor

Why Choose the Pizzato SR BD41AN1 Safety Magnetic Sensor?

The Pizzato SR BD41AN1 is a coded magnetic safety sensor designed for reliable non-contact monitoring of guards, doors and protective access points on industrial machinery. Part of the Pizzato SR-B coded magnetic safety sensor series, it combines coded magnetic actuation with reed-contact switching for dependable machine guard position monitoring.

The SR BD41AN1 features a 1NO + 2NC contact configuration with the guard closed, providing both normally closed safety contacts and an additional normally open contact. Its coded magnetic operating principle allows guard position detection without mechanical contact between the sensor and actuator, helping reduce wear in frequently operated machinery.

This version is supplied as the sensor without an actuator and features an integrated 1 m oil-resistant PVC cable. A durable technopolymer housing with stainless steel fixing plates and IP67 / IP69K protection makes the SR BD41AN1 suitable for demanding industrial environments and a wide range of machine safety installations.

Key Advantages

• Reliable coded magnetic safety sensor for machine guard monitoring.
• 1NO + 2NC contact configuration with the guard closed.
• Non-contact magnetic operation helps minimise mechanical wear.
• Integrated 1 m oil-resistant PVC cable for straightforward installation.
• Durable technopolymer housing with stainless steel fixing plates.
• IP67 and IP69K protection for demanding industrial environments.
• Compatible with coded actuator options offering 5 mm or 8 mm actuation distances.
• Can support safety functions up to PL e and SIL 3 when correctly integrated with an appropriate safety control system.

Key Features

• Pizzato SR-B coded magnetic safety sensor series.
• 1NO + 2NC reed contacts with the guard closed.
• Coded magnetic non-contact actuation.
• Integrated 1 m PVC cable.
• Oil-resistant cable construction.
• Technopolymer housing.
• Stainless steel fixing plates.
• IP67 according to EN 60529.
• IP69K according to ISO 20653.
• Compatible with SM B01F and SM B02F coded magnetic actuators.
• Designed for safety-related monitoring of guards, doors and protective covers.

Reliable Coded Magnetic Guard Monitoring for Industrial Machinery

Coded magnetic safety sensors such as the Pizzato SR BD41AN1 monitor movable machine guards without requiring direct mechanical contact. A compatible coded actuator is installed on the movable guard while the sensor is mounted to the fixed machine structure. When the guard closes and the actuator enters the sensing range, the sensor recognises the coded magnetic field and operates its electrical contacts.

The SR BD41AN1 provides 1NO + 2NC contacts, making it suitable for safety monitoring architectures requiring two normally closed contacts together with an additional normally open contact. When correctly combined with a suitable safety module and system architecture, SR-B coded magnetic sensors can form part of safety functions up to SIL 3 and PL e.

Typical Applications

• Industrial machine guard monitoring.
• Safety doors and protective access panels.
• Packaging and production machinery.
• Conveyors and material handling systems.
• Automated manufacturing cells.
• Machine tools and processing equipment.
• OEM machinery and industrial safety systems.