QOU350 - 50 Amp Circuit Breaker

QOU350 - 50 Amp Circuit Breaker

The Schneider Electric QOU350 is a compact 3-pole, 50-amp circuit breaker engineered for reliable overcurrent protection in residential, commercial, and OEM applications. Featuring a thermal-magnetic trip mechanism, it safeguards against both short-circuits and overloads, making it ideal for installations requiring safety and flexibility.

Key Features and Benefits

• Reliable Overcurrent Protection: Safeguards circuits and attached equipment from both short‑circuits and overloads with a dependable thermal‑magnetic trip mechanism.
• Instant and Delayed Tripping: Combines fast-acting magnetic response for sudden faults with delayed thermal protection for manageable overloads, covering a full range of safety scenarios.
• Integrated Manual Disconnect: Internal magnetic strip allows easy manual opening for maintenance or control.
• Compact, OEM‑Friendly Design: Slim unit‑mount form factor slides easily into tight spaces, giving installers flexibility and clean layouts.
• High Fault Handling Capacity: Rated to interrupt up to 10,000 A (10 kA) at 240 VAC, capable of handling major current surges safely.

Technical Specifications

• Current Rating: 50 A
• Poles: 3‑Pole
• Voltage: 120/240 VAC, also rated at 120 V AC and 48 V DC
• Interrupting Capacity: 10 kA at 240 VAC
• Mounting: Unit‑mount
• Connections: Slotted box lugs on line & load sides
• Wire Range: AWG 14–2, copper or aluminum
• Tightening Torque: 45 lbf·in (≈ 5.1 N·m)
• Dimensions (HxWxD): 4.05″ × 2.25″ × 2.95″ (102.9 mm × 57.2 mm × 74.9 mm)
• Weight: 18.4 oz (≈ 522 g)
• Warranty: 18 months

Material Compliance and Certifications

• UL Listed, CSA‑approved, and IEC‑compliant: Meeting recognized industry safety standards.
• Schneider Electric Green Premium certified: Mercury‑free, free of toxic heavy metals and halogens, low‑CO₂ lifecycle footprint.
• RoHS / REACh compliant: Aligned with global hazardous‑substance restrictions.
• Circular design principles: Supporting easy recycling and sustainability efforts.

Where It Works Best

• Safe, stable protection in home panels, commercial switchboards, machinery control panels, or OEM equipment.
• A compact breaker that minimizes panel clutter while offering durable switching and tripping capabilities.
• Flexibility in mounting and wiring, making it suitable for panel retrofits or modular OEM integration.
• Robust performance where high fault tolerance and reliability are required.