Overview
The Allen-Bradley 450L-E4HL0450YD is an advanced GuardShield point-of-control safety light curtain from Rockwell Automation. Unlike traditional safety light curtains with separate transmitters and receivers, this transceiver leverages patented technology that allows it to function as either a transmitter or receiver via an innovative plug-in module. With 450 mm of protective height and 30 mm hand detection resolution, the 450L-E4HL0450YD is designed for whole-body detection and personnel protection in moderate to high-risk machinery applications.
Key Features
- Point-of-control (POC) transceiver architecture—single unit functions as transmitter or receiver
- Integrated laser alignment system (ILAS) for simplified installation and field alignment
- EtherNet/IP connectivity for smart safety integration with The Connected Enterprise®
- Cascading and integrated muting capabilities for flexible safety system configuration
- Active protective field that senses over the entire length of the transceiver
- Compact housing design: 30 × 30 mm (1.18 × 1.18 in.) cross-section
- DIP switch configuration for start mode, external device monitoring (EDM), and scanning range
- Top and bottom mounting kits included
Technical Specifications
- Protective Height: 450 mm (17.7 in.)
- Resolution: 30 mm (1.18 in.) hand detection
- Type: POC Safety Light Curtain Transceiver
- Housing Cross-Section: 30 × 30 mm (1.18 × 1.18 in.)
- Alignment System: Integrated Laser Alignment System (ILAS)
- Communication Protocol: EtherNet/IP with CIP Safety
- Configuration Method: Plug-in DIP switches on receiver module
- Mounting: Top/bottom brackets included; optional side brackets available
- IP Rating: IP65
- Safety Category: Type 4 / Category 4
- Certifications: CE, UL, CUL, CCC, KC, RCM
- Operating Temperature: 0 to 50 °C (32 to 122 °F)
- Storage Temperature: −20 to 60 °C (−4 to 140 °F)
- Passive Zone: 100 mm (3.94 in.) at each end
Typical Applications
- Machine guarding and access control at press lines, punch presses, and hydraulic presses
- Personnel protection around conveyor systems and material handling equipment
- Assembly line safety barriers and process entry/exit point monitoring
- Whole-body detection for hazardous machinery with moderate to high operator injury risk
- Industrial automation environments requiring networked safety monitoring
- OEM equipment manufacturers implementing modular safety architectures
Compatibility & Replacements
Compatible With
- Rockwell Automation Studio 5000 and Connected Components Workbench (CCW) software
- EtherNet/IP networks and switches
- CIP Safety messaging infrastructure
- Allen-Bradley GuardShield 450L-E plug-in modules (receiver and transmitter options)
- Cascading plug-in modules (450L-APC-IO series) for multi-curtain systems
- Muting plug-in modules (450L-APR-MU series) for selective blanking
Replaces / Drop-In Replacement For
- Earlier GuardShield POC models without laser alignment or EtherNet/IP connectivity
- Traditional separated-transmitter/receiver safety light curtains in retrofit applications
- Non-networked mechanical or relay-based safety presence detection systems
Works With
- EtherNet/IP protocol and CIP Safety messaging
- Rockwell Automation CompactLogix, ControlLogix, and GuardLogix PLCs
- Optical interface tool (required for pre-configuration with Connected Components Workbench)
- Allen-Bradley 450L-E series transceivers (cascading compatible)
- GuardShield safety relay and contactor modules for hardwired safe stop functions
