CQHD SERIES PV Combiner Box
Il CHAC CQHD PV DC combiner box combines photovoltaic string inputs with DC circuit-breaker protection. Choose from six input/output configurations to match your PV array layout, and confirm the voltage and current ratings for the selected model.
Riassunto del prodotto
Il CHAC CQHD PV combiner box integrates DC circuit-breaker protection with PV string combining, surge protection and fuse components. Select the exact input/output model: the voltage, breaker current and maximum output current are not identical across all versions.
For importers, distributors and equipment manufacturers, CHAC can review the requested configuration against the circuit requirements and destination-market documents. Agree the exact model, drawings and marking requirements before sample approval or a repeat order.
Key Selection Points
Applicazioni tipiche
Evaluate CQHD for PV DC assemblies requiring the specified breaker-based protection arrangement. Use the inverter input limits, PV string design and assembly drawing to choose the box rather than selecting only by enclosure size or string count.
Modulazioni e Guida alla selezione
| Elemento selezionabile | CQHD configuration | Cosa verificare |
|---|---|---|
| Input/output choice | 1/1, 2/1, 3/1, 2/2, 4/2 or 6/2 | Confirm which strings feed each output and the inverter arrangement. |
| Voltage options | 500V / 1000V DC according to model | Some variants list only 1000V; confirm the exact version. |
| Breaker current | 16A / 32A / 45A according to model | This is distinct from the listed 32A / 63A maximum output rating. |
| Contenitore | PC; IP65 / IK09; wall mounting | Confirm gland selection, sealing and service space for the actual installation. |
Use these checks to compare the protection function, configuration and related CHAC products before specifying CQHD. Related products are selection alternatives or system components, not automatic replacements.
Do not confuse breaker current with maximum output current
The CQHD tables list both values.
Approve the string grouping and protection together
Select the voltage version, input/output layout, fuse links, DC breaker and SPD as a coordinated assembly.
Review CQHS in the PV system
The CHAC CQHS PV DC combiner box combines photovoltaic string inputs with a DC isolator for DC-side disconnection. Choose from six input/output configurations to match your PV array layout, and confirm the voltage and current ratings for the selected model.
Review CQBD-63 in the PV system
The CHAC CQBD-63 DC circuit breaker offers overload and short-circuit protection with a non-polar design and contact-position indication. One- to four-pole versions cover DC voltages from 300V to 1200V; match the pole arrangement and tripping characteristic to the circuit.
Need Help Specifying CQHD?
Send the circuit requirements, selected configuration, destination market and quantity for a model-specific review.
Do not confuse breaker current with maximum output current
The CQHD tables list both values. For example, the 2/1 configuration lists a 32A DC breaker and a 63A maximum output current. That does not authorize continuous operation at 63A through the 32A breaker. Confirm the limiting component and the complete assembly duty.
Approve the string grouping and protection together
Select the voltage version, input/output layout, fuse links, DC breaker and SPD as a coordinated assembly. Compare maximum string voltage and current with the inverter input requirements, and obtain the exact drawing before installation or repeat procurement.
How to Specify a CQHD Order
Use the configuration details below in the purchase specification. Keep the approved drawing revision and product identification with the order so repeat deliveries can be checked consistently.
| Order detail | Information to include |
|---|---|
| Input/output choice | 1/1, 2/1, 3/1, 2/2, 4/2 or 6/2 — Confirm which strings feed each output and the inverter arrangement. |
| Voltage options | 500V / 1000V DC according to model — Some variants list only 1000V; confirm the exact version. |
| Breaker current | 16A / 32A / 45A according to model — This is distinct from the listed 32A / 63A maximum output rating. |
| Contenitore | PC; IP65 / IK09; wall mounting — Confirm gland selection, sealing and service space for the actual installation. |
| Project and documents | Supply the application, installation conditions and destination-market document requirements. |
| Quantity and identification | State the quantity, sample requirement, packaging language and any proposed branding; confirm feasibility before approval. |
Check Installation Fit Before Approval
Technical Data
Contenitore combinato CQHD-1/1 PV
| Specificazione | |||
| CQHD-1/1 | Wiring diagram | ||
| Input | 1 strings |  |
|
| Output | 1 strings | ||
| Max Voltage | 500 V | 1000V | |
| Rated Current of DC Breaker | 16A | 16A | |
| Max Current Output | 32A | 32A | |
| Contenitore | |||
| Material | PC | ||
| Degree of Protection | IP65 | ||
| Impacts | IK09 | ||
| Dimensions | DXAT-9;L218*W200*H100mm | ||
| Input Cable Glands | PG09,2.5-16 | ||
| Output Cable Gland | PG21,2.5-16 | ||
| Ambiente | |||
| Operating temperature | -20℃ – +60℃ | ||
| Humidity | 99% | ||
| Altitude | 2000M | ||
| Installazione | Wall Mounting | ||
Modulo di collegamento PV CQHD-2/1
| Specificazione | ||
| CQHD-2/1 | Wiring diagram | |
| Input | 2 strings |  |
| Output | 1 strings | |
| Max Voltage | 1000V | |
| Rated Current of DC Breaker | 32A | |
| Max Current Output | 63A | |
| Contenitore | ||
| Material | ||
| Degree of Protection | IP65 | |
| Impacts | IK09 | |
| Dimensions | DXAT-13;L296*W230*H120mm | |
| Input Cable Glands | PG09,2.5-16 | |
| Output Cable Gland | PG21,2.5-16 | |
| Ambiente | ||
| Operating temperature | -20℃ – +60℃ | |
| Humidity | 99% | |
| Altitude | 2000M | |
| Installazione | Wall Mounting | |
Modulo di combinazione CQHD-2/2 PV
| Specificazione | |||
| CQHD-2/2 | Wiring diagram | ||
| Input | 2 strings |  |
|
| Output | 2 strings | ||
| Max Voltage | 500 V | 1000V | |
| Rated Current of DC Breaker | 16A | 16A | |
| Max Current Output | 32A | 32A | |
| Contenitore | |||
| Material | PC | ||
| Degree of Protection | IP65 | ||
| Impacts | IK09 | ||
| Dimensions | DXAT-18；L386*W230*H120mm | ||
| Input Cable Glands | PG09,2.5-16 | ||
| Output Cable Gland | PG21,2.5-16 | ||
| Ambiente | |||
| Operating temperature | -20℃ – +60℃ | ||
| Humidity | 99% | ||
| Altitude | 2000M | ||
| Installazione | Wall Mounting | ||
Contenitore combinato CQHD-3/1 PV
| Specificazione | |||
| CQHD-3/1 | Wiring diagram | ||
| Input | 3 strings |  |
|
| Output | 1 strings | ||
| Max Voltage | 500 V | 1000V | |
| Rated Current of DC Breaker | 45A | 45A | |
| Max Current Output | 63A | 63A | |
| Contenitore | |||
| Material | |||
| Degree of Protection | IP65 | ||
| Impacts | IK09 | ||
| Dimensions | DXAT-13:L296*W230*H120mm | ||
| Input Cable Glands | PG09,2.5-16 | ||
| Output Cable Gland | PG21,2.5-16 | ||
| Ambiente | |||
| Operating temperature | -20℃ – +60℃ | ||
| Humidity | 99% | ||
| Altitude | 2000M | ||
| Installazione | Wall Mounting | ||
Modulo di combinazione CQHD-4/2 PV
| Specificazione | |||
| CQHD-4/2 | Wiring diagram | ||
| Input | 4 strings |  |
|
| Output | 2 strings | ||
| Max Voltage | 500 V | 1000V | |
| Rated Current of DC Breaker | 32A | 32A | |
| Max Current Output | 63A | 63A | |
| Contenitore | |||
| Material | PC | ||
| Degree of Protection | IP65 | ||
| Impacts | IK09 | ||
| Dimensions | DXAT-26；L296*W390*H130mm | ||
| Input Cable Glands | PG09,2.5-16 | ||
| Output Cable Gland | PG21,2.5-16 | ||
| Ambiente | |||
| Operating temperature | -20℃ – +60℃ | ||
| Humidity | 99% | ||
| Altitude | 2000M | ||
| Installazione | Wall Mounting | ||
Contachilometri CQHD-6/2 PV
| Specificazione | ||
| CQHD-6/2 | Wiring diagram | |
| Input | 6 strings |  |
| Output | 2 strings | |
| Max Voltage | 1000V | |
| Rated Current of DC Breaker | 45A | |
| Max Current Output | 63A | |
| Contenitore | ||
| Material | PC | |
| Degree of Protection | IP65 | |
| Impacts | IK09 | |
| Dimensions | DXAT-26:L296*W390*H130mm | |
| Input Cable Glands | PG09,2.5-16 | |
| Output Cable Gland | PG21,2.5-16 | |
| Ambiente | ||
| Operating temperature | -20℃ – +60℃ | |
| Humidity | 99% | |
| Altitude | 2000M | |
| Installazione | Wall Mounting | |
Perché scegliere CHAC
CHAC Electric supplies electrical protection and control products for importers, distributors and equipment brands. For CQHD, agree the configuration, technical documents, approved sample and identification requirements before production. The company facilities shown below provide company context, not a claim that every model uses the same production or test process.
01
CONFIRM THE SPECIFICATION
Agree the CQHD configuration, circuit duty and installation requirements.
02
REVIEW THE DOCUMENTS
Confirm model-specific drawings and destination-market requirements.
03
APPROVE THE SAMPLE
Record the accepted configuration and marking requirements.
04
DEFINE ORDER CHECKS
Agree packaging, identification and delivery requirements in the quotation.
Linea di assemblaggio automatizzata
Laboratorio di test
Iniezione e stampaggio
Ispezione di qualità
Cosa possiamo personalizzare?
Discuss CQHD product identification, packaging and documentation with CHAC. Each proposed change is subject to technical feasibility, marking rules and approval of the exact order; no altered rating or certification is implied.
Logo e branding
Submit logo artwork and marking requirements for review against the available print area and mandatory product markings.
Packaging & Manuals
Define carton labels, packaging language, product identification and instruction requirements for the destination market.
Configuration Selection
Specify CQHD with the required input/output choice, operating conditions and protection duty. Confirm the complete order combination.
Assembly Requirements
Provide the mounting and connection requirements for review. Changes to the housing, terminals or operating arrangement require engineering approval.
Market Documentation
Request documents covering the exact CQHD model and destination market. A standard reference alone is not evidence of certification.
Sample Approval
Agree the sample specification, drawing revision and acceptance criteria before confirming a production order.
Technical Documents and Support
CQHD Technical Documents
Request the CQHD datasheet, configuration drawing, installation instructions and available model-specific market documents.Request Datasheet
Necessita di documenti tecnici?
Send the application, electrical requirements, assembly layout and destination market for configuration and document review.Contattaci
CQHD Product FAQ
How many PV strings can a CQHD box combine?
The series lists 1/1, 2/1, 3/1, 2/2, 4/2 and 6/2 input/output configurations. Confirm the internal grouping and inverter compatibility for the exact model; the total input count alone does not determine the MPPT arrangement.
Can a 63A maximum output rating override a 32A breaker rating?
No. The installed protective device and the other assembly limits still apply. Where a CQHD table lists a 32A breaker and 63A maximum output, confirm the intended duty; do not treat 63A as an authorized continuous current through that breaker.
Can I use any CQHD box at 1000V DC?
Order the voltage version documented for the exact model and confirm all installed components and wiring. Do not assume that a 500V version becomes a 1000V assembly because another version has that rating.
How should the PV string fuse be selected?
Check string current, reverse-current exposure, module maximum series-fuse rating and local rules. Confirm the fuse-link part number and rating in the CQHD assembly schedule. Do not select a fuse solely from the fuse holder’s maximum current.
Does the CQHD enclosure rating cover any outdoor installation?
No enclosure rating removes the need to assess exposure, temperature, cable entries, sealing and mounting. Preserve the specified IP65 construction during installation and confirm any site conditions outside the approved assembly requirements.
What information is needed to quote a CQHD box?
Provide string count and grouping, maximum PV voltage, string current, inverter model and MPPT inputs, required protection, cable details, site conditions, quantity and destination market. Agree the drawing and component schedule before production.
Specify the Right CQHD Configuration
Send CHAC your required configuration, application, destination market and estimated quantity. We will review the requested specification and provide the relevant technical documents and commercial proposal.
