Engineered for industrial-grade performance, this 7-day programmable digital timer switch by Shunmaii automates heavy-duty equipment with high accuracy and reliability. Featuring a three-phase high-voltage design, it supports up to 18 ON/OFF settings per week, no neutral wire required. Ideal for managing pumps, fans, lighting, and more. Key Features: Fully Programmable: Supports 18 ON/OFF settings weekly with a flexible schedule from Monday to Sunday Three-Phase Design: Operates on 350V–420VAC with three live wire inputs/outputs; no neutral wire required Manual Override: Enables temporary ON/OFF control for immediate adjustments without altering presets Wide Compatibility: Suitable for water pumps, pond systems, neon lights, heaters, billboards, and more High Durability: Built with a durable ABS shell and designed for consistent, long-term operation Compact Size: Easy to integrate into electrical control panels or wall installations Specifications: Theory: Digital Certification: None Shell Material: ABS Voltage Support: 350V–420VAC (Three-Phase) Timer Settings: 18 ON/OFF per week Minimum Interval: 1 minute Maximum Interval: 168 hours Manual Override: Yes Product Size: 125 x 92 x 64 mm / 4.92 x 3.62 x 2.52 in Hign-concerned Chemical: None Package Includes: 1 × 7-Day Weekly Programmable Digital Timer Switch