Description

The PILZ 301140 is a specialized safety relay module designed for critical machine safety applications, forming an integral part of modern safety control systems. This safety relay represents PILZ’s commitment to engineering excellence in the field of operational safety and machine protection. The PILZ 301140 functions as a monitoring and control device for safety-related components such as emergency stop buttons, safety gates, light curtains, and two-hand control devices. Its primary purpose is to monitor these safety devices and reliably switch off dangerous machine functions when a safety breach is detected, ensuring compliance with international safety standards and protecting both personnel and equipment.

Manufactured to the highest German engineering standards, the 301140 safety relay exemplifies PILZ’s renowned quality and reliability in safety automation. The module features forced-guided contacts that provide positive safety operation and self-monitoring capabilities, ensuring fail-safe performance even in the event of component failure. Its compact design allows for efficient integration into control cabinets while maintaining excellent thermal performance and easy accessibility for wiring. The PILZ 301140 is designed to meet rigorous safety categories according to ISO 13849-1 and performance levels that make it suitable for a wide range of industrial safety applications where reliable risk reduction is paramount.

301140 PILZ

Technical Specifications

Parameter Name	Parameter Value
Product Model	301140
Manufacturer	PILZ GmbH & Co. KG
Product Type	Safety Relay Module
Operating Voltage	24 V DC (19.2-28.8 V DC)
Current Consumption	≤100 mA (typical)
Number of Channels	2 safety channels
Contact Configuration	3 safety contacts (N/O), 1 auxiliary contact (N/C)
Contact Rating	6 A (resistive load) at 250 V AC
Max Switching Voltage	250 V AC/300 V DC
Max Switching Current	6 A
Operating Temperature	-25°C to +55°C (-13°F to +131°F)
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Safety Category	CAT 4 according to EN 954-1
Performance Level	PL e according to ISO 13849-1
Response Time	≤20 ms
Dimensions	99.5 x 22.5 x 114 mm (H x W x D)
Weight	Approximately 200 g
Certifications	CE, UL, cULus, TÜV

Main Features and Advantages

The PILZ 301140 safety relay offers advanced safety monitoring features with exceptional reliability through its innovative design and construction. The module incorporates cross-circuit detection and monitoring of the entire safety chain, ensuring comprehensive protection against potential faults in the safety circuit. Its forced-guided contacts provide mechanical linkage between contacts, guaranteeing safe switching status and enabling easy monitoring of the relay’s operational state. The 301140 features automatic start-up prevention after voltage drop or power failure, requiring manual reset to ensure intentional machine restart, which significantly enhances operational safety.

Enhanced diagnostic capabilities are a key advantage of the PILZ 301140, with clear status indication through LED indicators that show power status, input circuit status, and output circuit status. The relay’s compact design allows for efficient space utilization in control cabinets while maintaining excellent thermal performance through natural convection cooling. The screw terminal connections provide secure wiring and excellent contact reliability, while the transparent cover allows for visual inspection of status indicators without removing the unit. The PILZ 301140 also features easy integration capabilities with other safety components and can be used in various safety applications without requiring complex programming, making it an ideal choice for both simple and complex safety systems.

Application Field

The PILZ 301140 safety relay finds essential application across numerous industries where machine safety is critical for personnel protection and regulatory compliance. In manufacturing and automotive production lines, the module is deployed for emergency stop monitoring, safety gate protection, and two-hand control applications on presses, robots, and automated assembly equipment. The packaging industry utilizes the 301140 for machine safety systems on wrapping machines, palletizers, and filling equipment where operator access requires reliable safety monitoring. Its robust design and high safety category make it suitable for heavy machinery applications in metal processing and woodworking industries.

Material handling and logistics operations employ the PILZ 301140 for safety monitoring on conveyor systems, automated storage systems, and loading equipment where multiple access points require coordinated safety protection. The module’s compliance with international safety standards makes it suitable for global manufacturing facilities requiring consistent safety performance across different regions. In renewable energy sector, the 301140 provides safety monitoring for wind turbine maintenance access and solar panel manufacturing equipment. Essentially, wherever machinery presents potential hazards to operators and requires reliable safety monitoring according to CAT 4/PL e standards, the PILZ 301140 safety relay provides the necessary protection functionality.

301140 PILZ

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