POWE R TRAN S FO R M E R CHASSIS MOUNT : QUICK-CONNECT WORLD SERIES ™ VPS28-900 Electrical Specifications (@25C) 1. Maximum Power: 25VA 2. Input Voltage: Series: 230VAC, 50/60Hz; Parallel: 115VAC, 50/60Hz 3. Output Voltage: Series1: 28V CT@ 0.9A; Parallel2: 14.0V @ 1.8A 4. Voltage Regulation: 25% TYP @ full load to no load 5. Temperature Rise: 30C TYP (45C MAX allowed) 6. Insulation Resistance: 100MΩ 7. Recommended Fuse3: Series: Littelfuse p/n 313 1.0 HXP, 1A 250V, slow blow, ¼ x 1 ¼ or, Cooper Bussmann p/n BKMDL-1, 1A 250V, ¼ x 1 ¼ Parallel: Littelfuse p/n 313 2 HXP, 2A 250V, slow blow, ¼ x 1 ¼ or, Cooper Bussmann p/n BKMDL-2, 2A 250V, ¼ x 1 ¼ D B Construction: Dual bobbin construction with an insulated shroud, both made of a high temperature material that exceeds UL flammability requirements. Safety: These units are designed with 4000VAC isolation between the primary and secondary, and also, between each winding and the core. Agency File: C UL: File E53148, UL 5085-1 and 2 (formerly UL 506), General Purpose. File E65390, UL 5085-1 and 3 (formerly UL1585), Class 2/3 CSA: File LR 221330. C22.2 NO. 66, General Purpose. TUV Certificate No.: R72103639, EN60950, Information Technology A 6 5 12 11 2 1 8 7 H A. Dimensions: Unit: In inches H W D A B C T MW ML 2-5/16 2-13/16 1-15/16 2 1-1/8 5/16 3/16 2-3/8 - T B. Mounting Hole Size: 3/16” C. WT Lbs. : 1.25 Connections4: Input: Series – 6 and 1, Jumper 5 to 2 Parallel – 6 and 1, Jumper 6 to 2 and 5 to 1 Output: Series – 12 and 7, Jumper 11 to 8 Parallel – 12 and 7, Jumper 12 to 8 and 11 to 7 MW RoHS Compliance: As of manufacturing date February 2005, all standard products meet the requirements of 2011/65/EU, known as the RoHS initiative. W * Upon printing, this document is considered “uncontrolled”. Please contact Triad Magnetics’ website for the most current version. 1 Inherently limited. Class 3. 2 Non-Inherently limited. Class 2 not wet, Class 3 wet. 3 Fuse must be used on secondary as conditions of acceptability for UL Class2/3 operation. 4 Primary and secondary windings are designed to be connected in series or parallel. Winding are not intended to be used independently. Web: www.TriadMagnetics.com Phone 951-277-0757 Fax 951-277-2757 460 Harley Knox Blvd. Perris, California 92571 6 12 5 2 11 8 1 7 SCHEMATIC Publish Date: December 4, 2013