Overview
The Eaton FAZ-D2/1-NA-SP is a UL 489 certified industrial miniature circuit breaker (MCB) engineered for branch circuit protection in control panels and industrial automation systems. This single-pole unit delivers 10kA interrupt rating at 277VAC, making it suitable for protecting circuits with moderate-to-high inrush currents typical of motor controls and inductive loads.
Key Features
- D-curve thermal-magnetic trip mechanism optimized for inductive and capacitive loads
- Compact 17.7mm module width per pole for space-efficient panel design
- Trip-free mechanism ensures positive interruption regardless of handle position
- Captive screws prevent fastener loss during installation
- Contact position indicator for visual trip status verification
- Rated currents up to 40A available in FAZ-NA series for flexible system scaling
Technical Specifications
- Manufacturer Part Number: FAZ-D2/1-NA-SP
- Rated Voltage: 277VAC
- Current Rating: 2A
- Number of Poles: 1
- Interrupt Rating: 10kAIC
- Trip Characteristic: D-Curve (10–20X In)
- Frequency: 50/60 Hz
- Terminal Type: Screw terminals (18–6 AWG wire)
- Mounting: DIN rail (standard 35mm)
- Operating Temperature: −40 to +75°C
- Enclosure Rating: IP20
- Dimensions: 0.7 × 2.97 × 1 inch
- Material: Nylon housing
- Approvals: UL 489, CSA C22.2 No. 5, IEC 60947-2
Typical Applications
- Industrial motor control circuits requiring tolerance for high inrush currents
- Branch circuit protection in PLC control panels and automation systems
- Lighting and convenience receptacle circuits in industrial facilities
- Protection for solenoid-driven valve circuits and pilot devices
- Small transformer and auxiliary equipment protection
- OEM control panel integration with standard DIN rail architecture
Compatibility & Replacements
Compatible With
- Standard 35mm DIN rail systems (EN 60715 profile)
- Industrial control enclosures rated 277VAC supply voltage
- Eaton FAZ-NA accessory line (auxiliary switches, status indicators, latching mechanisms)
- UL 489 certified panel assemblies and motor control centers
Replaces / Drop-In Replacement For
- Earlier Eaton FAZ-D2/1-NA models (non-SP variant)
- Verify compatibility with your system integrator before ordering for legacy panel replacements
Works With
- Standard industrial PLC and drive control systems with 277V supply
- Thermal-magnetic protection schemes in fixed-installation applications
- EtherNet/IP and PROFIBUS gateway networks via external monitoring relays (when integrated into larger control architectures)




