Overview
The Dongan 50-0300-053 is a 300VA single-phase industrial control transformer designed for PLC control modules, servo drives, and general industrial automation applications. Part of Dongan’s proven 50 Series line, this transformer delivers consistent performance across 50/60Hz environments with triple-rated voltage configurations for maximum flexibility in industrial settings.
Key Features
- 300VA power capacity suitable for control-level applications
- 1-phase design with triple-rated primary voltage (240×480, 230×460, 220×440 VAC)
- All-copper windings for superior heat dissipation and longevity
- Rugged coil-mounted screw terminals for secure, reliable connections
- UL Class 180C insulation system with 115°C temperature rise rating
- 50/60Hz rated for global deployment flexibility
- Meets UL 506, UL E3210, CSA LR560, and NEMA ST-1 standards
Technical Specifications
- Power Rating: 300 VA
- Phase Configuration: Single-phase (1Φ)
- Primary Voltage: 240×480 / 230×460 / 220×440 VAC
- Secondary Voltage: 120 / 115 / 110 VAC
- Primary Current (240/480V): 1.25 / 0.63 A
- Secondary Current (120/240V): 2.5 / 1.25 A
- Frequency Rating: 50/60 Hz
- Insulation Class: UL Class 180C
- Temperature Rise: 115°C (at 40°C ambient maximum)
- Connection Type: Screw terminals
- Enclosure Style: Industrial open style
- Winding Material: All-copper
- Certifications: UL E3210 Listed, cUL Listed, CSA LR560 Certified, NEMA ST-1 Rated
Typical Applications
- PLC and servo control module power conditioning
- Industrial automation control circuits
- General-purpose isolation and voltage stepping for control systems
- Factory floor automation and machinery control
- Step-down voltage conversion from facility mains to control circuits
Compatibility & Replacements
Compatible With
- Allen-Bradley PLCs and control systems
- Siemens automation controllers
- Mitsubishi electric drives and controllers
- Omron industrial control devices
- Standard 1-phase facility power systems (240V, 230V, 220V primary)
- Industrial automation equipment requiring 120V / 115V / 110V secondary supply
Replaces / Drop-In Replacement For
- Other Dongan 50 Series 300VA transformers with matching primary/secondary voltage configurations
- Legacy or damaged single-phase 300VA control transformers
- Verify exact voltage configuration compatibility before installation
Works With
- Studio 5000 / RSLogix 5000 control systems (as upstream power conditioning)
- TIA Portal and Siemens automation software ecosystems
- Allen-Bradley CompactLogix and ControlLogix platforms
- EtherNet/IP and PROFINET-enabled control networks (for powered equipment)
- Industrial DC power supplies and motor drive input stages
