Electrical Specifications at 25 Degree C 1. Maximum Power: 112.0 VA 2. Primary: 115 Volt 50/60 Hz 3. Secondary: 28.0 Volt CT at 4.0 Amps 4. Voltage Regulation: 5 % Typical at full load to no load 5. Temperature Rise: 35 Degree C Typical (45 Degree C Maximum Allowed) Description: Chassis Mount: Single Secondary The F-187U is part of a series which has a long history of reliable service in the field,. Made from a proven design and constructed with UL recognized materials. Wound on a single channel nylon bobbin. Materials are UL recognized, Class B (130 Degree C) rated. Dimensions in Inches: 3.3" (L) x 2.82" (W) x 3.38" (H) Mounting Holes Center to Center: 2.75" (L) x 2.5" (W) Leads are about 7 Inches Long Magnetek Triad F-187 U