Overview
The Dayton 31EG84 is a 100VA industrial control transformer engineered for reliable voltage stepping in factory automation and process control environments. With its 240/480V AC primary input and 120V AC secondary output, this transformer supplies clean, regulated power to PLCs, relays, solenoids, and other control devices. The fully encapsulated design protects the coil from contaminants and moisture, ensuring long-term durability in harsh industrial settings.
Key Features
- 100VA power rating—suitable for small- to medium-control circuits
- Encapsulated coil construction—enhanced durability and simplified mounting
- Single-phase, 50/60 Hz operation—compatible with standard industrial AC power
- Foot-mount design—secure positioning on control panels and equipment bases
- UL 506 Listed, cUL, and CSA Approved—meets North American electrical safety standards
- Includes 2-Pole Class “CC” fuse block for primary circuit protection
- 3-year manufacturer warranty—confidence in long-term reliability
Technical Specifications
- VA Rating: 100 VA
- Primary Voltage: 240V AC / 480V AC (50/60 Hz)
- Secondary Voltage: 120V AC
- Temperature Rise: 55°C
- Enclosure Type: Encapsulated
- Mounting Style: Foot Mount
- Phase: Single Phase
- Protective Device: Secondary Fuse
- Certifications: UL 506, cUL, CSA, NEMA/ANSI Compliant, CE Marked
- Environmental: PVC-Free
- Warranty: 3 Years
- Included Accessories: 2-Pole Class “CC” Fuse Block
Typical Applications
- Manufacturing plant control circuits and sensor power
- HVAC system controls and thermostat circuits
- Industrial automation equipment stepping down 240V or 480V to 120V logic
- Relay, contactor, and solenoid coil power supplies
- General-purpose industrial power conditioning
- Panel-mount control station power backup
Compatibility & Replacements
Compatible With
- Industrial PLC controllers requiring 120V logic supply
- Standard 240V or 480V three-phase factory power distribution
- Relay logic and hardwired control circuits
- Control panel mounting systems with foot-mount provisions
- UL 508 industrial control panels
Replaces / Drop-In Replacement For
- Other Dayton 100VA transformers with equivalent voltage ratings and mounting footprint
- Verify compatibility with your system integrator before ordering, as primary voltage selection (240V vs. 480V) must match your facility’s power supply.
Works With
- Allen-Bradley, Siemens, Mitsubishi, Omron PLC control systems
- Standard industrial AC power distribution at 50 or 60 Hz
- Conventional relay-based and solid-state control circuits
- DIN-rail and panel-mount automation equipment
