Protection contre les surtensions ExS-T2-DC
Le dispositif de protection contre les surtensions CHAC ExS-T2-DC est conçu pour les systèmes photovoltaïques en courant continu, avec des configurations 2P et 3P sélectionnées en fonction de la tension de fonctionnement. Un module enfichable, un indicateur d’état et un support de montage sur rail DIN 35mm facilitent l’installation et la maintenance.
Vue d'ensemble du produit
Le CHAC ExS-T2-DC dispositif de protection contre les surtensions DC photovoltaïque utilise des modules enfichables et une fenêtre d’état pour l’inspection et la maintenance. La gamme comprend les configurations 2P et 3P, avec le niveau de tension sélectionné en fonction du circuit photovoltaïque et de la disposition de mise à la terre.
Pour les importateurs, les distributeurs et les fabricants d’équipements, CHAC peut vérifier la configuration demandée au regard des exigences du circuit électrique et des documents propres au marché de destination. Convenez du modèle exact, des schémas et des exigences de marquage avant l’approbation des échantillons ou la passation d’une commande répétée.
Points clés de sélection
Applications typiques
Use the ExS-T2-DC as part of a coordinated PV surge-protection design in a suitable enclosure. It addresses transient overvoltage; it does not replace string overcurrent protection, isolation or the wider lightning-protection design.
Demandes d’admission et guide de sélection
| Article sélectionné | ExS-T2-DC configuration | Qu'est-ce que l'on doit vérifier ? |
|---|---|---|
| Maximum continuous voltage | 2P: 600V or 1000V DC; 3P: 1000V or 1500V DC | Match the variant to maximum PV voltage and the required connection arrangement. |
| Discharge-current ratings | In 20kA; Imax 40kA, 8/20µs | These are surge-current ratings, not continuous load current or circuit-breaker interrupting capacity. |
| Connection and mounting | 35mm DIN rail; 1.5–25mm² connection range | Confirm conductor details, earthing layout and the installation instructions. |
| Environnement | IP20 device | Use a suitable enclosure and allow access to inspect and replace the correct module. |
Use these checks to compare the protection function, configuration and related CHAC products before specifying ExS-T2-DC. Related products are selection alternatives or system components, not automatic replacements.
Choose the voltage and protective arrangement together
Use maximum PV open-circuit voltage under the project temperature conditions when choosing the SPD.
Coordinate surge protection with the rest of the circuit
Short, correctly routed connections and the required backup protection are part of the installation design.
Compare CQHS for the required function
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.
Compare CQHD for the required function
The 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.
Need Help Specifying ExS-T2-DC?
Send the circuit requirements, selected configuration, destination market and quantity for a model-specific review.
Choose the voltage and protective arrangement together
Use maximum PV open-circuit voltage under the project temperature conditions when choosing the SPD. Confirm the exact 2P or 3P arrangement and its voltage-protection level against the equipment and earthing system. Do not select a device solely because its maximum voltage is higher.
Coordinate surge protection with the rest of the circuit
Short, correctly routed connections and the required backup protection are part of the installation design. Confirm the backup device for the actual fault level and SPD variant. A Type 2 device must not be presented as a complete solution for every direct-lightning exposure.
How to Specify a ExS-T2-DC 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 |
|---|---|
| Maximum continuous voltage | 2P: 600V or 1000V DC; 3P: 1000V or 1500V DC — Match the variant to maximum PV voltage and the required connection arrangement. |
| Discharge-current ratings | In 20kA; Imax 40kA, 8/20µs — These are surge-current ratings, not continuous load current or circuit-breaker interrupting capacity. |
| Connection and mounting | 35mm DIN rail; 1.5–25mm² connection range — Confirm conductor details, earthing layout and the installation instructions. |
| Environnement | IP20 device — Use a suitable enclosure and allow access to inspect and replace the correct module. |
| 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
Parameter table
| Model | ExS-T2-DC | |||
| Polar Number | 2P | 2P | 3P | 3P |
| Maximum Continuous Operating Voltage Uc (v) | DC600 | DC1000 | DC1000 | DC1500 |
| U1ma Pressure-sensitive Voltage (v) | 750 | 1500 | 750 | 1100 |
| Maximum Discharge Current Imax (8/20us) (ka) | 40 | |||
| Nominal Discharge Current In (ka) | 20 | |||
| Voltage Protection Level Up (kv) | ≤2.8 | ≤4.0 | ≤5.2 | |
| Response Time (ns) | ≤25 | |||
| Maximum Backup Fuse | 125AgL/gG | |||
| Working Temperature (℃) | -40~+70; Relative humidity<95% | |||
| Connecting Wire Cross-section (mm2) | 1.5-25mm2 | |||
| Installation Method | 35mm standard guide rail | |||
| Housing Material | Flame retardant material PA6,UL94 V-0 | |||
| Protection Level | IP20 | |||
| Number Of Ports | One port | |||
| Unipolar Width (mm) | eighteen | |||
Product dimensions
Pourquoi choisir CHAC
CHAC Electric supplies electrical protection and control products for importers, distributors and equipment brands. For ExS-T2-DC, 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 ExS-T2-DC 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.
Ligne de montage automatisée
Laboratoire d'essai
Injection et estampage
Inspection de qualité
Qu'est-ce que nous pouvons personnaliser ?
Discuss ExS-T2-DC 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 et identité visuelle
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 ExS-T2-DC with the required maximum continuous voltage, 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 ExS-T2-DC 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
ExS-T2-DC Technical Documents
Request the ExS-T2-DC datasheet, configuration drawing, installation instructions and available model-specific market documents.Request Datasheet
Dois-je avoir des documents techniques ?
Send the application, electrical requirements, assembly layout and destination market for configuration and document review.Contactez-nous
ExS-T2-DC Product FAQ
How do I select a surge protector for solar panels?
Check the maximum PV open-circuit voltage, earthing arrangement, lightning-risk assessment and equipment withstand requirements. For ExS-T2-DC, select the appropriate 2P or 3P voltage variant and confirm its protection level and installation requirements.
Can an AC surge protector be used on a DC solar circuit?
Do not substitute an AC SPD based only on a similar voltage marking. Use a device documented for the PV DC circuit. ExS-T2-DC is the CHAC PV DC model; match the exact variant to the installation.
What is the difference between In and Imax on an SPD?
They describe nominal and maximum discharge-current duties under specified surge test conditions. ExS-T2-DC lists In 20kA and Imax 40kA with an 8/20µs waveform. Neither value is a continuous-current rating or an MCCB breaking capacity.
Does a Type 2 SPD protect against every lightning event?
No. Select the SPD class and arrangement from the lightning-risk assessment and coordination design. ExS-T2-DC Type 2 data does not establish a Type 1 impulse-current rating or complete direct-lightning protection.
When should a plug-in SPD module be replaced?
Inspect the status indicator according to the device instructions and replace a failed module with the exact approved type. Confirm voltage and compatibility; matching appearance does not establish interchangeability. Isolate and service the device using the prescribed procedure.
What should I specify when ordering ExS-T2-DC?
Provide maximum PV voltage, earthing arrangement, required poles, protection level, fault/backup-protection requirements and enclosure conditions. Include the desired replacement-module identification, quantity and applicable market documents.
Specify the Right ExS-T2-DC 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.
