Medical Grade Isolation Toroidal Transformer

Medical Grade Isolation Toroidal Transformer

Medical isolation toroids can be found in many medical power applications, for both patient and non-patient connected devices. Low stray fields make allowances for interference-free mounting when the medical transformers are installed in close proximity to CRTs or other sensitive components. The design, testing, and construction of Winshine medical toroidal transformers meet the UL 60601-1, CSA C22.2 No. 601 and EN 60601-1 standards

Features of Medical Grade Isolation Toroidal Transformer by Winshine

  • Low leakage current
  • Ground screens as needed
  • Thermal protection (fuses or switches)
  • 8 VA to 30 kVA
  • International medical safety approvals
  • Certificates of compliance
  • Low radiated and acoustic noise
  • Higher efficiency
  • Flexible dimensions
  • Min. air clearance
  • Min. creepage distance
  • Min 4000 VAC dielectric withstand between primary and secondary
  • Low temperature rise at load and at over load
  • Class A, B, F or H insulation systems available

Description

Certification to Medical Isolation Transformers Standards by Winshine

Winshine is able to certify toroidal transformers to medical 60601 standards for materials and construction, even at the prototype stage, and that accelerate your entire produce approval process. As required, we can supply blanket certificates of construction to the safety agencies, thus alleviating their requirement to dissect, document and approve the medical grade ring transformer. Agencies can focus on product testing and don’t need to verify transformer construction.

3 Series of Medical Toroidal Transformer

These isolation toroidal transformers are optimized for medical applications, which fulfill the strict medical safety standards and meet requirements for low RFI and EMI.

Type Class Protection from Electrical Shock Thermal Protection Protective Earth Conductor
1 I Basic Insulation plus Protective Earth Conductor Yes Yes
2 II Basic plus Double Reinforced Insulation Yes No (It is intended for use in IEC601 Class II equipment)
3 III Basic plus Double Reinforced Insulation No No (It is intended for use in IEC601 Class II equipment)

 

General Specifications of Medical Grade Toroidal Transformers

  • Input: Dual 0-100-120 VAC windings, series or parallel connected for 100, 120, 200, 220 or 240VAC at 50 / 60 Hz.
  • Insulation: Class F insulation systems allow a maximum single fault temperature of 170°C, 190°C for abnormal overload tests. Primary to secondary includes both basic and double reinforced insulation
  • Output Tolerance: Better than 3% at full load.
  • Thermal Protection: Type 1 and 2 medical toroidal transformers include internal thermal switches, which will be closed and auto resetting. Type 3 medical transformers don’t include internal thermal protection devices. These transformers are used in medical applications where protective devices are external to the transformer.
  • Magnetic Shielding: A shield are included to attenuate stray magnetic fields.
  • Low interwinding capacitance

Secondary Ratings off Load Voltage

Power (VA) 115VAC (A(rms)) 230VAC (A(rms)) Parallel (VAC) Series (VAC) Temperature Rise (ºC) Leakage Current (µA) Capacitance (nF)
100 0.87 0.43 125 250 25 7 0.65
200 1.74 0.87 125 250 40 11 0.71
300 2.61 1.30 122 244 48 13 0.78
400 3.48 1.74 123 246 45 16 0.86
500 4.35 2.17 122 244 45 19 1.12
750 6.52 3.26 121 242 45 19 1.50
1000 8.70 4.35 121 242 50 15 1.51
1250 10.87 5.43 120 240 50 16 1.00
1500 13.04 6.52 120 240 50 19 1.88
2000 17.39 8.70 120 240 60 11 1.01
3000 26.09 13.04 120 240 60 8 1.30
4000 34.74 17.39 119 238 65 5 1.42
5000 43.48 21.74 119 238 70 7 2.93
7500 65.22 32.61 119 238 70 20 2.20
10000 86.96 43.48 118 236 80 34 2.26
12500 108.70 54.35 118 236 85 55 2.34