Siemens Q340HH 40A 3-Pole 240 V Circuit Breaker

Siemens Q340HH 40 A, 3-Pole, 240 V circuit breaker delivers reliable three-phase protection for demanding electrical systems. With part number Q340HH, this unit is designed to integrate smoothly into Siemens panels and compatible enclosures, providing strong overcurrent protection where it’s needed most.

• Three-pole protection safeguards all three phases (L1, L2, L3) in 240 V networks, ensuring balanced protection for motors, pumps, and other 3‑phase equipment.
• 40 A current rating offers precise, component-friendly safeguarding for loads like three-phase motors, HVAC drives, and conveyor systems up to 40 A per phase.
• Part Number Q340HH provides exact identification for fast replacement, maintenance, and compatibility within existing Siemens installations.
• Panel compatibility designed for Siemens Q-line panels and other compatible enclosures that accept 3-pole breakers, simplifying upgrades and serviceability.
• Efficient panel layouts consolidates three individual protections into a single, space-efficient unit, reducing wiring complexity and improving reliability in control panels.

This model is ideal for commercial and light-industrial settings where three-phase equipment—such as motors, compressors, and HVAC drives—needs dependable protection. Use it as the primary protection point in a subpanel, or as a dedicated motor circuit breaker to prevent nuisance trips and protect wiring and equipment from overloads and short circuits.

Key specifications

• Current rating: 40 A
• Poles: 3
• Voltage rating: 240 V
• Part number: Q340HH

Choose the Siemens Q340HH 40A 3-Pole 240 V circuit breaker to deliver robust, three-phase protection with straightforward integration into your existing Siemens electrical system. Protect your equipment, streamline maintenance, and keep critical loads running smoothly.