The Miller Edge MT33 is a heavy‑duty, pressure‑sensitive sensing edge designed to enhance the safety of commercial doors and gates. Built as part of the MT series, the MT33 model measures 3 inches wide by 3 inches high and is specifically sized for surfaces thicker than 2 inches. When lightly touched, its patented Alumaglas™ contact element sends an immediate stop or reverse signal to door operator controls, helping prevent damage and injuries. The durable reinforced PVC cover and 5–6‑inch end flaps conform to floor irregularities and create a complete seal that can be trimmed for a custom fit.
This sensing edge is custom manufactured to suit your application—choose the length in ¼‑inch increments, select a color (gray, black, yellow, yellow/black stripe or chemical‑resistant XR5 jacket) and specify left, right or universal wire outlet locations. It’s flexible enough for rolling fire doors, rolling steel doors and material‑handling systems, and its sealed assembly resists dust and debris. With UL 325 recognition, the EDGMT33 meets safety standards and comes with a one‑year warranty. Made in the USA, it provides reliable performance in demanding industrial environments.
Key features
- Optimum 3 × 3‑inch size for surfaces thicker than 2 inches
- Custom‑built to user specifications for color, length (in ¼‑inch increments) and outlet location
- 5–6‑inch end flaps create a complete seal and can be trimmed for a tailored fit
- Flexible vinyl cover conforms to floor irregularities and resists dust and debris
- Extended color options including chemical‑resistant yellow XR5 jacket
- Patented Alumaglas™ contact element for superior electric performance
- UL 325 recognized component with 1‑year warranty and made‑in‑USA quality
Specifications
- Dimensions: 3 in. W × 3 in. H; length ordered to the nearest ¼ inch
- Maximum length: 150 ft (electric), 60 ft (Air‑Wave), 18 ft (pneumatic)
- Sensitivity: nominal 4–8 lbf
- Lead wire: 2 ft SJTO, 18‑gauge
- Electrical rating: 24 V AC/DC, 0.5 A; normally‑open configuration
- Operating temperature: meets or exceeds UL requirements
- Exterior material: heavy‑duty reinforced PVC
- Contact element: Alumaglas™
- Agency approvals: UL 325 recognized component











