GuardShield 450L

The Allen-Bradley GuardShield 450L is a safety light curtain family designed for machine guarding applications, offering Type 4/Category 4 performance across a broad range of protective heights and beam resolutions. The catalog number follows a structured format: the prefix 450L identifies the family, the next character(s) indicate the product line (e.g., B for Line B, E for Line E), followed by safety rating and resolution codes (e.g., 4H for Type 4/30mm hand detection, 4F for Type 4/14mm finger detection), then a four-digit protected-height value in millimeters, and trailing characters denoting output and connection options. Notable in-stock variants include the 450L-E4FL0900YD, a Line E transceiver with 14mm finger-detection resolution at 900mm protective height, the 450L-E4FL1800YD extending that resolution to 1800mm, and the 450L-B4HN0600YD, a Line B unit offering 30mm hand-detection resolution at 600mm. The 450L-AW series provides welding shield kits sized from 900mm to 1950mm to protect curtain optics in harsh weld environments.