POWER TRANSFORMER
CHASSIS MOUNT :
TOROIDAL MEDICAL SERIES
Web: www.TriadMagnetics.com
Phone 951-277-0757
Fax 951-277-2757
460 Harley Knox Blvd.
Perris, California 92571
Publish Date: July 6, 2016
VPM48-1040
Description:
The toroidal construction inherently reduces stray fields, increases efficiency and minimizes size
compared to traditional EI transformers. The addition of a Flux Band further reduces the remaining
stray fields. The shield between Primary and Secondary improves safety, reduces common
mode signals and minimizes leakage current. Built with a Class F (155°) insulation system. A
140°C self-resetting thermal switch is included in each primary.
Electrical Specifications (@25C)
1. Maximum Power: 50VA
2. Input Voltages: 100, 120, 220, 240VAC, 50/60Hz
3. Output Voltages: 24VAC @ 2.08A or 48VAC CT @ 1.04A
4. Voltage Regulation: 11.5% TYP from full load to no load
5. Temperature Rise: 45°C TYP
6. Hipot: 4000VAC, Primary to Secondary, Primary & Secondary to Shield & mounting surface
7. Efficiency: 89% TYP. @ full load
8. Earth Leakage: ≤10µA (See Fig. 1), Patient Leakage: ≤ 25µA (see Fig. 2)
Agency File:
UL: File E122529, UL 60601-1/(R) 2012 Medical Electrical Equipment – Part 1 with 2 MOPP
CE: ES 60601-1 (IEC 60601-1:2005, MOD)
cUL: C22.2 No. 60601-1:14, Medical Electrical Equipment – Part 1
CB Certified.
Dimensions: Inches (mm)
*Add 0.188 (3) to the height for mounting hardware
Weight: 0.7Kg
Mounting:
Transformer is provided with one metal mounting plate, two rubber pads, M5 x 45mm bolt, nut,
spring and flat washer.
Connections:
Transformer is provided with 8” (203mm) long, 0.25” (6.35mm) stripped and tinned, stranded
UL 1015 lead wire. Primaries are 22AWG, Secondaries are 20AWG, and Shield is 20AWG.
The GRN/YEL shield lead is typically grounded. Do not lift transformer by leads!
Input Options:
100VAC: Input to Gray & Blue, jumper White & Brown, jumper Blue & Violet.
120VAC:
Input to White & Blue, jumper White & Brown, jumper Blue & Violet.
220VAC: Input to Gray & Violet, jumper Blue & Brown
240VAC: Input to White and Violet, jumper Blue & Brown
Output Options:
24VAC:
Output from Black & Red, jumper Black & Orange, jumper Red to Yellow
48VAC: Output from Black & Yellow, jumper Red & Orange
Primary and secondary windings are designed to be connected in series or parallel. Windings
are not intended to be used independently.
RoHS Compliance: Meets the requirements of 2011/65/EU, known as the RoHS 2 initiative.
* At printing, this document is considered “uncontrolled”. Contact Triad Magnetics’ website for current version
O.D. I.D. HT.*
3.6 (92)
1.3(32) 1.5(38)
METAL
H
BLU
GRY
VIO
BRN
BLK
RED
ORG
YEL
SCHEMATIC
SEC
WHT
PRI
GRN/YEL
Photo for illustration only
2011/65/EU
