Description
1. At-A-Glance Executive Brief
- Model: FAZ-C2/2-DC (3BHB012515R1001)
- Brand: ABB / Eaton Co-branded
- Part Type: Miniature Circuit Breaker / DC Supplementary Protector (2 A, 2-Pole)
- Lifecycle Status: Active / Legacy Support Spare
- Weight: 0.25 kg
2. Technical Introduction
An unexpected short circuit or DC control power fault inside a medium-voltage frequency converter cabinet can trip main protection hierarchies and cause lengthy unscheduled outages. The ABB FAZ-C2/2-DC 3BHB012515R1001 operates as a two-pole magnetic-thermal miniature circuit breaker designed to safeguard sensitive control circuits, auxiliary power supplies, and logic voltage rails. Plant electrical teams integrate this 2-amp DC protector into drive control cubicles to isolate localized overcurrent events precisely without inducing widespread system shutdowns.
3. Core Technical Specifications
- Manufacturer: ABB / Eaton
- Part Number / Catalog ID: 3BHB012515R1001
- Model Designation: FAZ-C2/2-DC
- Rated Current: 2 A
- Number of Poles: Two-pole
- Trip Characteristic Curve: C-Curve (5-10x In)
- Operational Voltage: 125 VDC per pole
- Country of Origin: Germany / Austria
- Unit Weight: 0.25 kg
4. Field Engineer’s Tech Notes
- DC Polarity & Arc Suppression: Always verify the correct DC source polarity wiring orientation indicated on the breaker housing. Reversing polarity on high-voltage DC circuits can compromise internal magnetic arc blowout paths, leading to catastrophic contact welding during a fault clearance.
- DIN Rail Thermal Derating: Account for ambient temperature buildup when mounting multiple breakers inside a sealed control enclosure. High internal cabinet temperatures combined with side-by-side DIN rail mounting require applying appropriate thermal correction factors to prevent nuisance tripping.
5. Adaptive QA & Testing Protocol
Every unit undergoes rigorous electrical and mechanical verification before warehouse packaging. Testing includes calibration checks on the thermal bimetal strip at ambient temperature, mechanical toggle endurance cycling, and high-potential dielectric isolation testing across open contacts to confirm zero leakage current. Detailed functional test records and pre-shipment inspection logs can be supplied upon request to meet your site’s QA compliance directives.
6. Buyer’s FAQ
- What is the standard warranty coverage for this part?This component includes a comprehensive 12-month operational warranty from the date of invoice.
- Are these units supplied as new surplus or refurbished?We stock verified New Surplus (NSFP) and certified OEM inventory, maintained in climate-controlled conditions.
- What is the typical shipping speed for emergency plant outages?Parts stocked in our distribution hubs ship same-day via expedited courier services to minimize critical downtime.
- Is this part an exact drop-in replacement for older revisions?Yes, part number 3BHB012515R1001 matches the exact electrical ratings and DIN rail footprint required for designated ABB converter auxiliary racks.
