Overview
The Sola Hevi-Duty E100 control transformer is a 100VA, single-phase industrial control power transformer designed for equipment requiring stable, isolated secondary voltage. Built with epoxy-encapsulated construction, the E100 protects internal windings and copper magnet wire from moisture, dust, and contaminants common in manufacturing and industrial automation settings. This SBE series transformer meets NEMA ST-1 and ANSI C89.1 standards for load inrush capability and is UL 506 / CSA listed.
Key Features
- 100VA single-phase power rating; handles standard industrial control loads
- Multi-tap primary windings: 240/480V, 230/460V, or 220/440V (user-selectable taps)
- Secondary voltage: 120V, 115V, or 110V (factory-set or selectable options available)
- 55°C temperature rise; 105°C insulation class for extended life in warm environments
- Epoxy encapsulated design seals against moisture, dirt, and industrial contaminants
- Includes two FB2X secondary fuse holders (13/32 x 1-1/2 in cartridge slots)
- Heavy-gauge steel mounting plate; dimensions compatible with standard control transformer installations
- 50/60 Hz dual-frequency rated (frequency varies by primary tap selection)
- Interleaved copper windings reduce I²R losses and maximize efficiency
- Molded, flame-retardant terminal blocks reduce arcing and improve conductivity
Technical Specifications
| Power Rating | 100 VA |
| Phase | Single-Phase (1Φ) |
| Primary Voltage | 240/480V, 230/460V, 220/440V AC (multi-tap) |
| Secondary Voltage | 120/115/110V AC |
| Frequency | 50/60 Hz (varies by primary selection) |
| Temperature Rise | 55°C (131°F) |
| Insulation Class | 105°C |
| Construction | Epoxy Encapsulated SBE Series |
| Winding Material | Copper Magnet Wire |
| Mounting | Surface Mount with Steel Plate |
| Dimensions | 3.39″ L × 4.36″ W × 2.96″ H |
| Enclosure Rating | IP20 |
| Secondary Fusing | Two FB2X Fuse Holders (included; fuses separate) |
| Standards | UL 506, CSA C22.2 No. 66, NEMA ST-1, ANSI C89.1 |
| Certifications | RoHS Compliant, cULus Listed |
Typical Applications
- Industrial machinery control circuits and PLC power supplies
- Motor control centers (MCC) and soft starters
- Building automation and HVAC control systems
- Process control and instrumentation voltage isolation
- Lighting control panels and emergency backup systems
- Factory automation and conveyor system controls
Compatibility & Replacements
Compatible With
- Allen-Bradley PLC and control systems operating at 120V secondary
- Siemens SIMATIC control modules and I/O cards
- Automation equipment designed for 100-120V auxiliary power
- Standard 13/32 × 1-1/2 in secondary fuses (cartridge type)
- Mounting footprints compatible with other SBE series and similarly-sized control transformers
Replaces / Drop-In Replacement For
- Sola Hevi-Duty E100 (all versions)
- Emerson SolaHD E100 encapsulated control transformer
- Other SBE series 100VA transformers where pin-compatible
Works With
- Standard industrial electrical cabinets and control panels
- Multi-tap primary allows flexibility across 220V, 230V, and 240V distribution systems
- Epoxy encapsulation permits use in damp, corrosive, or dusty industrial environments
- Compatible with motor control relays, soft starters, and PLC input modules
