Siemens HDK3B060L 60A 3-Pole 347 V Circuit Breaker

Designed for reliable protection in 3-phase power systems, the Siemens HDK3B060L 60A 3-Pole 347 V Circuit Breaker delivers precise overcurrent protection for demanding commercial and light industrial environments. This 3-pole unit is built to guard feeders and motor circuits in 347 V distribution networks, helping prevent damage from overloads and short circuits while maintaining system uptime.

Key specifications at a glance

• Current rating: 60 A
• Poles: 3
• Voltage rating: 347 V
• Part number: HDK3B060L

Why this HDK model stands out

• Seamless compatibility with Siemens panels and the HDK family, providing straightforward replacement or upgrade for existing 3-phase installations.
• Robust construction designed for real-world commercial duty, with dependable trip performance that protects wiring, controllers, and motors in 347 V systems.
• Clear labeling and consistent response characteristics, helping engineers and electricians plan safe, compliant protection schemes in electrical rooms and service panels.

Ideal use cases

• Protecting 3-phase feeders in commercial buildings, data centers, or light industrial facilities where equipment runs on 347 V.
• Motor and compressor circuits in HVAC, pumps, conveyors, and manufacturing lines that require reliable short-circuit protection for safety and uptime.
• Retrofit and replacement projects where a like-for-like HDK series upgrade ensures continuity with existing Siemens infrastructure.

Practical considerations

• Verify your electrical system operates at or below 347 V line-to-line to ensure full compatibility with the 347 V rating.
• Use in compatible Siemens enclosures designed for 3-pole HDK breakers; confirm mounting and terminal torque per local electrical codes.
• Keep spare HDK3B060L on hand for quick swaps to minimize downtime during maintenance windows.

With the Siemens HDK3B060L, you’re choosing proven reliability, precise protection, and a straightforward path to maintaining safer, more resilient electrical distributions in professional settings.