Delixi Electric CDB6i Miniature Circuit Breaker
DELIXI CDB6i 1P/1P+N AC MCB Circuit Breaker C10/C16/C20
BCD Curve:C
Type:MCB
Brand Name:Delixi
Place of Origin:China
Model Number:CDB6i
Rated Frequency (Hz):50/60hz
Protection:LSI
Breaking Capacity:6kA
Rated Voltage:220V,400V ,230V,240V,380V
Type:MCB
Brand Name:Delixi
Place of Origin:China
Model Number:CDB6i
Rated Frequency (Hz):50/60hz
Protection:LSI
Breaking Capacity:6kA
Rated Voltage:220V,400V ,230V,240V,380V
Poles
Rated Current
Description
Additional information
| Weight | 2 kg |
|---|---|
| Dimensions | 25 × 25 × 25 cm |
| Rated Current |
1, 2, 3, 4, 6, 10, 13, 16, 20, 25, 32, 40, 50, 63A |
| Poles |
1P+N |
Technical Datasheet & Downloads
Technical Documentation & Product Specifications
Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for DELIXI CDB6i 1P/1P+N AC MCB Circuit Breaker C10/C16/C20.
Official Technical Datasheet (PDF)
Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
2D/3D CAD & Dimensional Drawings
STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Technical FAQ & Selection Guide
Frequently Asked Technical Questions & Selection Guide
Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.
Curve Selection
How to choose between Tripping Curves B, C, and D for this miniature circuit breaker?
A
Curve B trips at 3–5 In (designed for resistive loads, electric heating, and domestic appliances with negligible inrush). Curve C trips at 5–10 In (the standard international choice for residential and commercial lighting, socket outlets, and small induction motors). Curve D trips at 10–14 In (specifically engineered for high-inrush inductive equipment such as industrial transformers, heavy motors, compressors, and welding circuits).
Breaking Capacity
How do I determine whether 6kA or 10kA breaking capacity is required for my installation?
A
Breaking capacity (Icn/Icu) must exceed the calculated prospective short-circuit fault current at the installation point. 6kA (IEC 60898-1) is standard for residential consumer units and sub-distribution branch circuits located downstream. 10kA (IEC 60947-2) is required for industrial facilities, main switchboards, commercial distribution panels, or circuits situated close to supply transformers where fault levels are high.
Poles & Neutral Isolation
How to choose the correct number of poles (1P, 1P+N, 2P, 3P, 3P+N, 4P) for single-phase and three-phase circuits?
A
For single-phase 230V circuits: 1P provides active phase protection; 1P+N or 2P isolates both live and neutral lines simultaneously (essential for TT earthing systems and sensitive sub-panels). For three-phase 400V systems: 3P protects balanced 3-wire motor loads; 3P+N or 4P is required for 4-wire mixed single-phase loads to ensure complete neutral disconnection during isolation.
DC vs AC Application
Can this circuit breaker be used in DC circuits (Solar PV, Battery Storage, Telecom)?
A
Standard AC breakers cannot safely extinguish DC arcs due to the absence of natural zero-crossing current. For DC circuits (60V to 1000V DC), select specialized DC breakers (such as DZ158-125 DC or NM8NDC series) equipped with permanent magnetic arc-blowout chutes and strictly observe polarity wiring to prevent arc re-ignition.
Modular Accessories & Interlocks
What modular accessories and mechanical interlocks can be fitted to this breaker?
A
Standard modular clip-on accessories can be mounted directly on the side without tools: OF (Auxiliary Contact for remote status indication), SD (Alarm Contact for trip fault signaling), MX (Shunt Trip for remote emergency tripping), MN (Under-voltage Release for voltage loss protection), and NXBZ mechanical interlock kits for manual generator/mains transfer switches.
