PRODUCT DESCRIPTION
OMRON H3DT-G AC/DC24-240 - Star-Delta Timer
The OMRON H3DT-G is a compact, DIN rail-mountable Star-Delta timer from the H3DT Slim Timer series, engineered for controlled starting of three-phase induction motors. It facilitates a reduced-current starting sequence by managing the precise transition from a star (Y) connection to a delta (Δ) connection, thereby mitigating inrush current and mechanical shock. This solid-state timing device is suitable for applications in industrial motor control, HVAC systems, and pump stations.
Technical Specifications:
- SERIES/FAMILY: H3DT Slim Timer
- COMPONENT TYPE: Star-Delta Timer
- ELECTRICAL SPECS:
- INPUT VOLTAGE: AC/DC 24-240V (Wide Range)
- OUTPUT CONTACTS: 2 x SPDT (Single Pole Double Throw) Relay Outputs (1 for Star, 1 for Delta)
- CONTACT RATING: 5A at 250VAC (Resistive Load)
- TIMING FUNCTION:
- OPERATING MODE: Star-Delta (Y-Δ) Motor Starting
- TIME RANGE: Selectable via front dial, typically 0.05s to 120s across multiple ranges
- TRANSITION TIME: Fixed dead time between Star and Delta output, typically 50ms
- INTERFACE/CONTROL:
- INDICATORS: Power ON (Green LED), Output Status (Orange LED for Star, Orange LED for Delta)
- SETTINGS: Front-mounted rotary switch for time range selection, potentiometer for fine time adjustment
- ENVIRONMENTAL/MOUNTING:
- MOUNTING STYLE: 35mm DIN Rail
- ENCLOSURE RATING: IP20 (Terminal Block), IP40 (Front Panel)
- OPERATING TEMPERATURE: -10 to +55°C
- DIMENSIONS: Slim profile, typically 17.5mm width
- COMPATIBILITY/APPLICATION:
- TARGET APPLICATIONS: Three-phase induction motor control, conveyor systems, fan and pump applications, industrial machinery requiring soft starting.