This product may contain shelf wear, have minor cosmetic imperfections, or have been tested. All our certified pre-owned products are backed by our return policy. We offer free shipping on all items. Please contact us for discounts or if you have any questions. We look forward to doing business with you!• Model: TH34 Electronic Sequencer• Function: Controls and sequences multiple electric heating elements to prevent current surges • Application: Electric heating systems, typically for duct heaters or plenum heaters • Control Type: Electronic sequencing relay • Voltage Compatibility: Designed for use with common electric heating voltages (usually 208V, 240V, or 277V) • Features: Adjustable sequencing to manage staged heating elements, improving system efficiency and safety • Mounting: Panel mountable, compatible with standard HVAC control panels • Dimensions & Weight: Compact size suitable for integration into HVAC control assemblies (exact specs typically proprietary) • Manufacturer: Thermolec, known for electric heating control products