EATON FAZ-C2-2-DC 2 Pole C Curve DC Miniature Circuit Breaker 2A

🔨Key Specifications

• Brand:​ Eaton
• Model / Part No:​ FAZ-C2/2-DC
• Catalog Number:​ 279134
• EAN:​ 4015082791346
• Product Type:​ Miniature circuit breaker (MCB), thermal-magnetic
• Poles:​ 2-pole (both poles protected)
• Rated Current (In):​ 2 A
• Trip Characteristic:​ Type C (medium inrush)
• Voltage Type:​ DC
• Rated Operational Voltage:​ 250 V DC per pole (max system voltage depends on series connection; 2-pole common use up to 500 V DC nominal in series context, confirm per drawing)
• Insulation Voltage (Ui):​ 440 V
• Impulse Withstand (Uimp):​ 4 kV
• Breaking Capacity (Icu):​ 10 kA per IEC/EN 60947-2
• Standards:​ IEC/EN 60947-2, IEC/EN 60898, UL 1077, CSA C22.2 No. 235, CE
• Certifications:​ UL Recognized, CSA Certified, EN 45545-2 (railway), IEC 61373 (shock/vibration)
• Mounting:​ 35 mm DIN rail (IEC/EN 60715), 17.5 mm per pole (2 modules wide)
• Terminals:​ Screw, twin-purpose; 1–25 mm² solid/stranded
• Protection:​ IP20 (IP40 when enclosed)
• Operating Temp:​ -25 °C to +75 °C
• Electrical Life:​ ≥ 10,000 operations
• Back-up Fuse:​ max 100 A gL/gG

🔨Key Features

• DC-Optimized Arc Interruption:​ Dual-break contacts + arc chutes for safe DC fault clearing.
• Type C Curve:​ Tolerates moderate inrush; trips on real overload/short-circuit.
• High Breaking Capacity:​ 10 kA at DC application per IEC 60947-2.
• Clear Status Indication:​ Front toggle shows ON/OFF/tripped position (red/green).
• Trip-Free Mechanism:​ Cannot be held closed during fault.
• Finger-Safe Terminals:​ Touch-safe design per EN 50274.
• Accessory-Ready:​ Supports aux contacts, shunt trips (FAZ-X accessories).
• Compact DIN Form:​ 17.5 mm/pole, saves panel space.

🔨Typical Applications

• DC control circuits for PLC, sensors, relays, instrumentation
• Photovoltaic (PV) string and combiner-box protection
• UPS output and battery bank branch protection
• DC power supplies, converters, excitation auxiliaries
• Railway and mobile equipment panels (EN 45545-2 / IEC 61373)
• Industrial automation and building DC distribution

🔷Ordering & Installation Notes

• Exact match:​ FAZ-C2/2-DC = 2 A, 2-pole, C-curve, DC-rated. Do not substitute AC-only FAZ-C2/2.
• Polarity matters:​ DC supply direction is polarity-dependent — follow Eaton wiring diagram.
• Voltage stacking:​ 2-pole series extends DC rating; verify per-pole 250 V DC vs total string voltage.
• Upstream protection:​ Use coordinated gL/gG fuse (≤100 A) if required by design.
• Torque & seating:​ DIN rail click-mount; torque screw terminals to Eaton spec; clean busbar edges.