MTO2-MEDIUM

Supported Applications

The Omega MTO-2 series is a medium-weight oil immersion heater designed specifically for use with medium-weight oils. The product overview identifies the series as an industrial heating solution featuring a heavy-duty steel sheath and a 2-element design. Heaters in this series are intended to be used with an approved temperature control device to ensure safe operation.

Operating Conditions & Performance

The MTO-2 series operates at 15 W/in² watt density and is available in power ratings from 2 to 6 kW. Electrical supply options include 240 V, 1 phase or 480 V, 1 phase, with specific model configurations supporting 208 Vac for higher wattage variants. The heating element features a sheath diameter of 12 mm (0.475"). Dimensional data indicates overall lengths ranging from 63 cm (24¾ in) to 172 cm (67¾ in), depending on the kW rating and enclosure type.

Configuration Options

The series offers configurable options across wattage, voltage, and enclosure construction. Key selection parameters include:

• Wattage Ratings: 2 kW, 2.66 kW, 3.33 kW, 4 kW, 5 kW, and 6 kW.
• Voltage Designations: Models are designated by inserting "208", "240", or "480" into the model number to specify voltage (e.g., MTO-2020/240).
• Enclosure Types:
  • E1: General purpose, NEMA 1 (IP00) rated.
  • E2: Moisture-resistant/explosion-resistant enclosure designed to provide explosion-resistant containment of electrical wiring according to the National Electric Code. Note that E2 construction is not intended for use in hazardous areas.
• Process Connection: 2 NPT steel screw plug.
• Electrical Connection: Screw Plug: 2 NPT steel with a conduit opening of 3/4 NPT.

The series is manufactured in the USA. Heaters with general purpose enclosures are UL listed and CSA certified, while those with moisture-resistant/explosion-resistant enclosures are CSA NRTL/C certified.

Key Product Differences

Variants within the MTO-2 series differ primarily by power output (kW), voltage compatibility, and enclosure rating. The model number guide follows the format MTO-<kW> - <Enclosure Type> - <Voltage Designation>. For example, a 2 kW heater with an E1 general purpose enclosure at 240 Vac is designated MTO-2020/240. Higher wattage models (e.g., the 6 kW variant) may require specific voltage designations such as "208", "240", or "480" to be inserted into the model number.

Physical dimensions vary by power rating; for instance, a 2 kW unit has an overall length of 12.2 cm (4-13/16 in) with an E1 enclosure and 13.2 cm (5-3/16 in) with an E2 enclosure, while the minimum hole size for installation is specified as 5.7 cm (2-1/4 in).