Product Description:
The Allen-Bradley 440R-DG2R2T Guardmaster Multifunction DG (Dual GuardLink) Safety Relay is a highly versatile and configurable safety relay designed for complex safety applications. This relay achieves Performance Level e (PLe) according to EN ISO 13849-1 and Safety Integrity Level 3 (SIL 3) according to IEC 61508.1 It features two safety inputs that can accept GuardLink, OSSD (Output Signal Switching Device), and traditional N.C. (Normally Closed) signals.2 It also offers two N.O. (Normally Open) safety outputs, two SWS (Safe Work Stop) inputs, and two SWS outputs.3 The relay supports both instantaneous and time-delayed safety functions and operates on 24V DC power.4
Key Features:
- Guardmaster Multifunction DG (Dual GuardLink): Offers advanced safety functionality and integration with GuardLink safety systems. Dual GuardLink means it can handle two separate GuardLink chains.
- PLe (EN ISO 13849-1) / SIL 3 (IEC 61508): Meets high safety standards for critical safety applications.5
- 2 Safety Inputs (GuardLink, OSSD, N.C.): Provides flexible input options for various safety devices.6
- 2 N.O. Safety Outputs: Provides two normally open safety outputs for controlling safety-related circuits.7
- 2 SWS Inputs / 2 SWS Outputs: Offers Safe Work Stop functionality for controlled machine stopping.8
- Instantaneous and Time Delay: Supports both immediate and time-delayed safety responses.9
- 24V DC Power: Operates on a standard industrial 24V DC supply.10
Technical Specifications:
- Product Type: Multifunction Safety Relay
- Catalog Number: 440R-DG2R2T
- Series: Guardmaster DG (Dual GuardLink)
- Safety Performance Level: PLe (EN ISO 13849-1)
- Safety Integrity Level: SIL 3 (IEC 61508)
- Safety Inputs: 2 (GuardLink, OSSD, N.C.)
- Safety Outputs: 2 N.O.
- SWS Inputs: 2
- SWS Outputs: 2
- Timing Functions: Instantaneous and Time Delay (Specify the range of time delays from documentation)
- Power Supply: 24V DC
Applications:
- Complex machine safety applications
- Safety interlocking
- Emergency stop systems
- Guard monitoring
- Applications requiring high levels of safety integrity
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