Companion for Model 1100 

Torus 1100

Toroid Isolation Transformer

The Torus 1100 toroid isolation transformer is the perfect companion for the Model 1100 tabletop ultrasonic cleaning system. For facilities with low limits on current leakage, the 20-pound Torus 1100 will reduce leakage current to below 100 μA (0.1 mA) for increased safety to staff. Leakage occurs when an electrical device connected to a facility feeds or leaks current from the device back into the facility.

As an added safety benefit, the toroid design significantly reduces electromagnetic interference (EMI) to adjacent circuits or devices. The Torus 1100 provides a seamless connection between the facility power source and the Model 1100, is easy to install, and does not require additional wiring. It must be installed on a sturdy surface, like a shelf or wall, to ensure that it is secure. If a shelf is not available, the recommended place of installation is on the side of a sturdy cart or table (stainless steel or solid wood), such as the Ultra Clean Systems storage cart.

Features & Benefits

Stainless Steel

Constructed of type 304 stainless steel with a #3 polished finish

Thermal Protection

Includes a 284°F (140°C) self-resetting thermal switch to protect from internal transformer faults and external overloads


Reduces stray fields better than an EI transformer, increasing its efficiency and reducing its size

Flux Filter

Added flux filter reduces stray fields and increases efficiency


Electrostatic shield between primary and secondary coils filters out electrostatic interference


Four slotted holes provided for mounting to a wall, shelf, or the side of a cart

Electrical Specifications

  • Maximum power: 500 VA
  • Input voltages: 120 VAC, 50/60 Hz
  • Output voltages: 120 VAC @ 4.16 A
  • Temperature rise: 122°F (50°C) TYP
  • Operating amperage: 3.63 A
  • Leakage: 24–26 μA
  • Maximum operating temperature: 134°F (56.7°C) ambient room temperature
  • Fused enclosure: 12.5-amp fuse
  • Efficiency: 95% TYP at full load
  • Earth leakage: <10 μA
  • NEMA 5-15 plug and receptacle: 84″ (2,134) each
  • Electrical: 110 VAC

Standards and Codes

Torus 1100 meets the applicable requirements of the following:

  • IP66 rating for ingress protection from dust and powerful water jets
  • NEMA Type 12 and 13 enclosures
  • UL Type 4x and 12
  • CSA Type 4x and 12
  • Hipot rating: 4,000 VAC primary to secondary to shield and mounting surface

Torus 1100 companion for the Model 1100