Projoy String Level Rapid Shutdown Device – 4 String, 8 Poles max 30A @ 1500V

The PJ‑EL50H‑10‑P2 from Projoy Electric is a string‑level rapid shutdown / firefighter safety switch designed for multi‑string PV installations. It supports up to 5 PV strings and provides fast, controlled disconnection of DC circuits in emergency scenarios. Engineered for high-voltage systems, it is rated up to 1500 VDC. The unit is housed in a weather-resistant enclosure and includes protective features such as temperature-triggered shutdown, AC-absence detection (so it shuts down when grid power is lost), and manual emergency override. This makes it well suited for commercial, industrial, and residential array installations that demand safety compliance and code alignment.

• Supports up to 5 PV strings, with up to 10 poles / channels
• Rated for high-voltage operation (up to 1500 VDC)
• Automatic shutdown on AC disconnection, high temperature, or emergency activation
• Weatherproof enclosure suitable for outdoor mounting

• Free local pickup at select warehouse locations across Canada
• Nationwide shipping available
• Flat-rate shipping calculated at checkout
• Additional freight charges may apply for remote or rural locations. We will contact you before processing your order if required
• Shipping to territories quoted separately