Hammond Power Solutions control transformers are designed to provide reliable low voltage power for control circuits in industrial machinery, motor control centers, HVAC systems, and automation panels. They are engineered to handle the high inrush current of contactors and solenoids while maintaining stable secondary voltage so that critical control devices operate safely and consistently. The product family is available in three main construction styles so you can match performance and protection level to your installation environment.
Use molded control transformers when you need maximum protection in harsh or contaminated areas. Choose open core control transformers when panel space and flexibility are most important. Select enclosed control transformers when you want a ready to install unit with integrated protection for commercial or light industrial locations.
Open Core Control Transformers
Open core control transformers from Hammond Power Solutions offer a compact and flexible solution for OEM machinery builders and panel designers. These models use a traditional core and coil construction without a resin encapsulated body which makes them easy to mount and wire in tight control cabinets. They are well suited for general purpose control circuits, HVAC equipment, lighting control, and alarm or signal circuits where the environment is relatively clean and accessibility for wiring is important.
Open Core Control Transformers Key Features
Compact core and coil design that fits into shallow or crowded control panels.
Wide selection of VA ratings to match small control loads or larger multi circuit panels.
Multiple primary tap arrangements that allow use on different line voltages without extra hardware.
Secondary voltages commonly used for control power such as 24 volts, 120 volts, and other standard levels.
Optional primary and secondary fuse blocks or adapter kits for integrated overcurrent protection.
Finger safe terminal covers available on many models for increased installer safety.
Open design that provides easy access to terminals during wiring and commissioning.
Cost effective choice for OEM and panel shop applications that do not require encapsulation.
Suitable for indoor environments with normal levels of dust and humidity.
Covered by a long term Hammond warranty that supports industrial use.
Open Core Control Transformers Ratings and Certifications
VA ratings that span from low power signal circuits to several kilovolt ampere control systems.
Thermal insulation system selected to support rated temperature rise under continuous duty.
UL and cUL recognized constructions for use in listed industrial control panels.
Compliance with relevant CSA and CE requirements on designated models.
RoHS compliant materials that meet current environmental directives.
