Siemens HND678 - Solid-State Protection Switch 810A@600V (200kA AIC RK5 Class)

Siemens HND678 is a solid-state protection switch designed for industrial power distribution systems requiring long-time and instantaneous (LI) fault protection. The unit operates at 600V AC with a 810A current rating and 200kA interrupting capacity, featuring a 3-pole bolt-on configuration for secure electrical connections. Its RK5-class construction includes PGP-compatible frames and 24V coil voltage operation within a compact 1 lb housing. The switch meets industry standards for 3-phase applications, providing reliable circuit protection in manufacturing facilities, data centers, and heavy machinery power distribution panels.

Key Features & Specifications

• Type: Solid-state protection switch with LI (Long-time/Instantaneous) functions
• Voltage Rating: 600V AC
• Current Rating: 810A
• Poles: 3
• Connection: Bolt-On
• Protection: Solid State
• AIC Rating: 200kA@600V
• Phase: 3
• Coil Voltage: 24V (minimum/maximum)
• Class Rating: RK5
• Wire: 3
• Compatible Frames: PGP
• Weight: 1 lb

Product Identification

• UPC: 783643454453