CHASSIS MOUNT :
TOROIDAL MEDICAL SERIES
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: 1000VA
2. Input Voltages: 100, 120, 220, 240VAC, 50/60Hz
3. Output Voltages: 120VAC @8.34A or 240VAC CT @ 4.17A
4. Voltage Regulation: 3.0% TYP from full load to no load
5. Temperature Rise: 50°C TYP
6. Hipot: 4000VAC, Primary to Secondary, Primary & Secondary to Shield & mounting surface
7. Efficiency: 96% TYP. @ full load
8. Earth Leakage: ≤10µA (See Fig. 1), Patient Leakage: ≤ 100µA (see Fig. 2)
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
Photo for illustration only
Dimensions: Inches (mm)
O.D. I.D. HT.*
7.2 (183) 2.3(59) 2.9(74)
*Add 0.188 (3) to the height for mounting hardware
Transformer is provided with one metal mounting plate, two rubber pads, M8 x 80mm bolt, nut,
spring and flat washer.
Transformer is provided with 12” (305mm) long, 0.5” (12.7mm) stripped and tinned, stranded
UL 1015 lead wire. Primaries are 18AWG, Secondaries are 16AWG, and Shield is 20AWG.
The GRN/YEL shield lead is typically grounded. Do not lift transformer by leads!
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
120VAC: Output from Black & Red, jumper Black & Orange, jumper Red to Yellow
240VAC: 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: As of manufacturing date February 2016, all standard products meet the requirements
of 2015/863/EU, known as the RoHS 3 initiative.
* At printing, this document is considered “uncontrolled”. Contact Triad Magnetics’ website for current version
SC H EMATIC
460 Harley Knox Blvd.
Perris, California 92571
Publish Date: June 3, 2019