Interruttore di circuito in custodia stampata della serie CQM5HU
L'interruttore automatico in scatola stampata CHAC CQM5HU offre configurazioni solo magnetiche e termomagnetiche per circuiti di distribuzione CA a 800V e 1140V. Selezionare la versione termomagnetica quando sono necessarie sia la protezione da sovraccarico che quella da cortocircuito. I suoi frame 320A e 630A offrono diverse gamme di corrente e capacità di interruzione, pertanto la selezione deve essere adeguata alla tensione di sistema, al frame e all'unità di sgancio.
Riassunto del prodotto
Il CHAC Interruttore automatico in scatola stampata CQM5HU È progettato per circuiti CA 800V e 1140V. I suoi frame 320A e 630A presentano intervalli di corrente e capacità di interruzione differenti. Selezionare la tensione di esercizio e la funzione dell'unità di scatto prima di scegliere il frame.
Per importatori, distributori e produttori di apparecchiature, CHAC può verificare la configurazione richiesta rispetto ai requisiti del circuito e alla documentazione del mercato di destinazione. Concordare il modello esatto, i disegni e i requisiti di marcatura prima dell’approvazione del campione o di un ordine ripetuto.
Punti chiave di selezione
Applicazioni tipiche
Valutare CQM5HU per apparecchiature di distribuzione AC entro i suoi limiti documentati di tensione, corrente di guasto e installazione. Una versione solo magnetica necessita di una soluzione di sovraccarico coordinata separatamente laddove è richiesta la protezione dal sovraccarico.
Modulazioni e Guida alla selezione
| Elemento selezionabile | CQM5HU configuration | Cosa verificare |
|---|---|---|
| Fotogramma e corrente | 320 frame: 63–320A; 630 frame: 250–630A in listed steps | Check the actual available current and mechanism combination. |
| Capacity at 800V AC | 320 frame: 50kA; 630 frame: 65kA; Ics = Icu | Use the capacity for the operating voltage. |
| Capacity at 1140V AC | 320 frame: 15kA; 630 frame: 20kA; Ics = Icu | Do not carry the higher 800V values into an 1140V design. |
| Release options | Magnetic only or thermal-magnetic | Choose thermal-magnetic when integral overload and short-circuit protection are both needed. |
Use these checks to compare the protection function, configuration and related CHAC products before specifying CQM5HU. Related products are selection alternatives or system components, not automatic replacements.
Select breaking capacity at the actual AC voltage
CQM5HU has different short-circuit ratings at 800V and 1140V.
Confirm temperature conditions and the trip function
The operating data calls for derating above 40°C.
Compare CQM5NEZ for the required function
Il disgiuntore a custodia stampata CHAC CQM5NEZ DC è disponibile con unità di arresto magnetiche o termomagnetiche per circuiti DC da 1500 V. Se sono richieste sia la protezione da sovraccarico che quella da cortocircuito, selezionare la versione termomagnetiche. Le versioni da 350 A e 630 A coprono i valori di corrente da 63 A a 630 A, con una capacità di arresto determinata dalla versione del quadro e dalla versione M/H.
Compare PXD6-125 for the required function
The CHAC PXD6-125 isolator provides electrical isolation and ON/OFF indication for terminal distribution assemblies. Choose the pole arrangement and rated current for the supply system, with AC-22A utilization and ratings up to 125A.
Need Help Specifying CQM5HU?
Invia i requisiti del circuito, la configurazione selezionata, il mercato di destinazione e la quantità per una verifica specifica del modello.
Select breaking capacity at the actual AC voltage
CQM5HU has different short-circuit ratings at 800V and 1140V. State the network voltage and calculated fault current together in the inquiry. Frame size alone cannot determine whether the breaker meets the installation fault level.
Confirm temperature conditions and the trip function
The operating data calls for derating above 40°C. Provide the actual enclosure temperature and installation conditions for review, and identify whether a magnetic-only or thermal-magnetic release is required. Neither a larger frame nor a larger trip setting substitutes for a coordination study.
How to Specify a CQM5HU Order
Utilizzare i dettagli di configurazione riportati di seguito nella specifica d’acquisto. Conservare la revisione approvata del disegno e l’identificazione del prodotto insieme all’ordine, in modo da poter verificare in modo coerente le consegne ripetute.
| Dettaglio dell'ordine | Informazioni da includere |
|---|---|
| Fotogramma e corrente | 320 frame: 63–320A; 630 frame: 250–630A in listed steps — Check the actual available current and mechanism combination. |
| Capacity at 800V AC | 320 frame: 50kA; 630 frame: 65kA; Ics = Icu — Use the capacity for the operating voltage. |
| Capacity at 1140V AC | 320 frame: 15kA; 630 frame: 20kA; Ics = Icu — Do not carry the higher 800V values into an 1140V design. |
| Release options | Magnetic only or thermal-magnetic — Choose thermal-magnetic when integral overload and short-circuit protection are both needed. |
| Progetto e documenti | Fornire i requisiti documentali relativi all’applicazione, alle condizioni di installazione e al mercato di destinazione. |
| Quantità e identificazione | Indicare la quantità, i requisiti relativi ai campioni, la lingua dell’imballaggio e qualsiasi proposta di marchio; verificare la fattibilità prima dell’approvazione. |
Verificare la corretta installazione prima dell'approvazione.
Designazione del tipo

| No. | Codice | Descrizione |
| ① | CQ | Codice aziendale |
| ② | M | Interruttore di circuito in custodia stampata |
| ③ | 5 | Design Code |
| ④ | HU | Derivative Code |
| ⑤ | 320 / 630 | Frame Size |
| ⑥ | M / — | Breaking Capacity Code: M = Standard Type; “—” for 630 |
| ⑦ | 3 | Number of Poles: 3P |
| ⑧ | 2/3 | Release Code: 2 = Magnetic Only; 3 = Thermal-Magnetic |
| ⑨ | □ | Internal Accessory Code: See Accessory Code Reference |
| ⑩ | □ | Operating Mode: Direct Handle / CS1-A Manual Operating Mechanism / CD2 Motor Operating Mechanism |
| ⑪ | □ | Rated Current |
| ⑫ | □ | Rated Voltage: AC800V / AC1140V |
| ⑬ | □ | Accessory Voltage / Specification |
Operating Conditions
| Oggetto | Specificazione |
| Operating Altitude | ≤ 2500 m |
| Ambient Temperature | −35℃ to +70℃ |
| Derating | Required above +40℃ |
| Storage Temperature | −40℃ to +75℃ |
| Relative Humidity | ≤ 50% at +40℃; up to 90% at +20℃ |
| Livello di inquinamento | 3 |
| Protection Degree | IP20 |
| Installazione | Vertical or horizontal |
| Vertical Installation Inclination | ≤ 5° |
Specifiche tecniche
| Parametro | CQM5HU-320 | CQM5HU-630 |
| Frame Size (A) | 320 | 630 |
| Rated Current In (A) | 63, 80, 100, 125, 140, 160, 180, 200, 225, 250, 280, 315, 320 | 250, 315, 350, 400, 500, 630 |
| Numero di polacchi | 3P | 3P |
| Rated Operational Voltage Ue (V) | AC800 / AC1140 | AC800 / AC1140 |
| Rated Insulation Voltage Ui (V) | 1250 | 1250 |
| Rated Impulse Withstand Voltage Uimp (kV) | 12 | 12 |
| Breaking Capacity Class | M | — |
| Ics = 100% Icu @ AC800V (kA) | 50 | 65 |
| Ics = 100% Icu @ AC1140V (kA) | 15 | 20 |
| Electrical Operations @ AC800V | 1500 | 1000 |
| Electrical Operations @ AC1140V | 1000 | 800 |
| Mechanical Operations | 15000 | 15000 |
| Ambient Temperature | -35℃ to +70℃* | -3℃ to +70℃* |
| Normal Operating Altitude | ≤ 2500 m | ≤ 2500 m |
| Relative Humidity | ≤50% at +40℃; up to 90% at +20℃ | ≤50% at +40℃; up to 90% at +20℃ |
| Livello di inquinamento | 3 | 3 |
| Categoria di installazione | III (Main Circuit) / II (Other) | III |
| Degree of Protection | IP20 | IP20 |
| Terminal Screw | M8 | M10 |
| Terminal Tightening Torque | 12 N·m | 35 N·m |
| Mounting Screw | M4 | M4 / M3 |
| Mounting Tightening Torque | 1.5 N·m | 1.5 / 0.8 N·m |
| Dimensions (L × W × H) mm | 264 × 120 × 103 | 275 × 110 × 170 |
| Standard | IEC 60947-2, GB/T 14048.2 | IEC 60947-2, GB/T 14048.2 |
| Certificazione | CCC、CE、TÜV、CB | CCC |
Recommended Conductor Cross-Section
| Rated Current In (A) | 63 | 80 | 100 | 125 | 140/160 | 180/200/225 | 250 | 315 | 320/350 | 400 | 500 | 630 |
| Conductor Cross-Section (mm²) | 16 | 25 | 35 | 50 | 70 | 95 | 120 | 185 | 185 | 240 | 2×240 | 2×240 |
Accessory List

Time-current characteristic curve

Overall and mounting dimensions
CQM5HU-320

CQM5HU-630

Perché scegliere CHAC
CHAC Electric supplies electrical protection and control products for importers, distributors and equipment brands. For CQM5HU, 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 CQM5HU 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 CQM5HU 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 CQM5HU with the required frame and current, 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 CQM5HU 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
CQM5HU Technical Documents
Request the CQM5HU 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
CQM5HU Product FAQ
What do Icu and Ics mean on an MCCB?
Icu is the rated ultimate short-circuit breaking capacity and Ics is the rated service breaking capacity under the specified test conditions. Compare them at the actual operating voltage. CQM5HU lists Ics equal to Icu for the published frame/voltage combinations.
Can I use the 800V breaking capacity at 1140V?
No. CQM5HU-320 lists 50kA at 800V but 15kA at 1140V; CQM5HU-630 lists 65kA and 20kA respectively. Check the value for the actual system voltage.
Does a magnetic-only MCCB protect against overload?
A magnetic-only release does not provide the thermal overload function. Select the thermal-magnetic CQM5HU option when both protections must be integral, or provide an appropriately coordinated external overload solution.
How do I choose the CQM5HU current rating?
Start with load current and conductor capacity, then check trip function, enclosure temperature and protection coordination. Use an available current step within the chosen frame; frame size alone is not the circuit protection setting.
Can I copy a cable size from the CQM5HU table?
Treat the conductor table as a product reference. Final sizing also depends on installation method, conductor material, temperature, grouping, voltage drop, short-circuit duty and local rules. Check terminal compatibility and the model-specific torque.
What should a distributor specify when ordering CQM5HU?
State frame, rated current, operating voltage, breaking-capacity version, trip function and accessory voltages. Include drawings, destination-market documents, quantity and marking requirements; approve the exact configuration before a repeat order.
Specify the Right CQM5HU 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.


















