Products Description
Delixi CDCH8s CDCH8s16 CDCH8s20 CDCH8s25 CDCH8s40 CDCH8s63 16A 20A 25A 40A 63A 1P 2P 3P 4P Modular Household Contactor
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DELIXI CDCH8s 1P-4P Modular Household Contactor 16A-63A
Electricity Type:AC
Brand Name:Delixi
Place of Origin:China
Model Number:CDCH8s
Phase:1
Main Circuit Rating Current:16A,20A,25A,40A,63A
Product Name:Household Contactor
Model:CDCH8s
Brand:Delixi
Rated insulation voltage:500V
Rated working current:16A, 20A, 25A, 40A, 63A
Coil control voltage:AC24V, AC220-240V
Pole:2P, 4P
Certificate:CE, CCC
Standard:IEC61095/GB17885
Warranty:12-18 Months
Brand Name:Delixi
Place of Origin:China
Model Number:CDCH8s
Phase:1
Main Circuit Rating Current:16A,20A,25A,40A,63A
Product Name:Household Contactor
Model:CDCH8s
Brand:Delixi
Rated insulation voltage:500V
Rated working current:16A, 20A, 25A, 40A, 63A
Coil control voltage:AC24V, AC220-240V
Pole:2P, 4P
Certificate:CE, CCC
Standard:IEC61095/GB17885
Warranty:12-18 Months
Number of Pole
Main Circuit Rating Voltage
Description
Additional information
| Weight | 1 kg |
|---|---|
| Dimensions | 15 × 12 × 10 cm |
| Number of Pole |
1, 3, 2, 4 |
| Main Circuit Rating Voltage |
24V, 220V, 230V, 240V |
Technical Datasheet & Downloads
Technical Documentation & Product Specifications
Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for DELIXI CDCH8s 1P-4P Modular Household Contactor 16A-63A.
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.
AC-1 / AC-3 Duty
How to calculate contactor rating based on motor power and utilization categories (AC-1 vs AC-3 vs AC-4)?
A
AC-3 rating applies to standard squirrel-cage motor starting and stopping during normal run (starting current 5–7x In). For non-inductive or purely resistive heating loads, use the higher AC-1 rating. For severe inching, jogging, and plugging applications (AC-4 duty), derate the contactor or upsize by 1 to 2 frame sizes to prevent contact erosion.
Coil Voltage Selection
How to choose the correct control coil voltage, frequency, and electronic wide-voltage options?
A
Standard AC coils include 24V, 48V, 110V, 220V/230V, 380V at 50/60Hz. For DC control loops or PLC outputs, specify DC coils or electronic wide-range AC/DC coils (e.g. 100V–250V AC/DC) which feature built-in surge suppression, low holding power consumption, and immunity to voltage dips.
Overload Coordination
How to size and coordinate the matching thermal overload relay (TOR) for Type 2 protection?
A
Select a thermal overload relay whose current setting range straddles the motor full-load current (FLA). Set the dial precisely to 1.0x motor nameplate FLA. For IEC 60947-4-1 Type 2 coordination, pair the contactor and relay with backed-up upstream fuses or fast-acting MCB/MCCB to prevent welding under fault conditions.
Auxiliary & Interlocks
What auxiliary contact blocks and mechanical interlocks can be added for motor reversing?
A
Units feature built-in 1NO or 1NC auxiliary contacts, expandable with top-mounted 2-pole or 4-pole auxiliary contact blocks (F4 / AX) and pneumatic timer delay blocks. For forward/reverse motor starters or star-delta starter assemblies, add side-mounted mechanical interlock units (MI) with electrical interlocking.
Ambient & Altitude Derating
How do ambient temperature and installation altitude affect contactor performance?
A
Standard ratings are calibrated for -5°C to +40°C. For ambient temperatures exceeding 55°C or altitudes above 2000m (where reduced air density diminishes heat dissipation and dielectric insulation), derate operational current by 2% per 100m above 2000m and verify insulation voltage limits per IEC standards.
