Downloads 1. Trine 3478 Specification Sheet (pdf) Manufacturer Trine Access Technology Model 3478-12DC Dimensions Depth 1″, Width 1-7/8″, Height 4-7/8″. Door Lock Type Cylindrical Mode Fail Secure Frame Application Aluminum, Hollow Metal, Wood Voltage 12 VDC Current DC Duty Intermittent ANSI/BHMA ANSI/BHMA A156.31, 2001, Grade 2 Warranty 2 Year Warranty Weight 1.5000