ExS-T1T2-AC Series Single-Pole Pluggable Surge Protector
The ExS-T1T2-AC Series Single-Pole Pluggable Surge Protector is a CHAC surge protection device for transient overvoltage protection. The page keeps the model-specific technical table and original product images so buyers can verify voltage, current, configuration, mounting and applicable standards before ordering. Final suitability depends on the complete circuit, installation method and destination-market rules.
Product Overview
ExS-T1T2-AC Series Single-Pole Pluggable Surge Protector is a surge protection device intended for transient overvoltage protection. The current product record identifies it for PV, building distribution and control panels. Use the exact model variant and preserved technical source as the basis for procurement rather than assuming that every family member has the same rating.
Verified source summary: Dimensions(mm) Technical Specifications Parameter Rated voltage (max. continuous AC voltage) 275V or 385V Lightning impulse current (10/350) [limp] 7 kA Nominal discharge current (8/20) [In] 20 kA Maximum discharge current [Imax] 50 kA Voltage protection level [Up] ≤ 1.5 kV Follow current extinguishing capability at Uc 32A fuse will not be triggered at 2kA…255V Response time [t] ≤ 100 ns Max. backupfuse (L) 200A gL
Key Features
Typical Applications
Typical use can include PV, building distribution and control panels when the project confirms system voltage, current, fault or surge exposure, conductor and enclosure requirements, and the selected variant’s installation instructions. This page does not replace the project design or the authority having jurisdiction.
Applications and Selection Guide
Use the following decision points with the preserved model data. Product-family descriptions explain intent, but the exact technical table controls the ordered variant.
| Selection point | ExS-T1T2-AC Series Single-Pole Pluggable Surge Protector | What the project must confirm |
|---|---|---|
| Application | SPD projects | Confirm the actual system and environment |
| Selection basis | transient overvoltage protection | Use the exact model and technical table |
| Installation | Follow the model instructions | Check mounting, clearances and termination |
| Compliance | Use the listed standard where applicable | Verify edition, scope and destination rules |
| Adjacent product | Evaluate the related CHAC family where function differs | Do not substitute without engineering review |
Function
transient overvoltage protection
Match the protection or switching function to the system.
Configuration
Model-specific options
Confirm current, voltage, poles, terminals or accessories from the table.
Installation
Mechanical and electrical fit
Check enclosure, mounting, wiring space and maintenance access.
Project evidence
Documents and test records
Retain the approved drawing, technical sheet and commissioning record.
Ordering Guide
- State the exact model and variant.
- Provide the system voltage, current, frequency and load or protection function.
- Confirm mounting, terminals, accessories, enclosure and environmental conditions.
- Share quantity, destination market and required technical documents.
Installation and Coordination Checks
- Verify the model’s ratings and connection arrangement against the project drawings.
- Check conductor, busbar, enclosure, clearances and tightening requirements using the product documentation.
- Coordinate upstream and downstream protection or control devices where applicable.
- Use qualified personnel for installation, testing, isolation and maintenance.
Dimensions(mm)
Technical Specifications
| Parameter | |
| Rated voltage (max. continuous AC voltage) | 275V or 385V |
| Lightning impulse current (10/350) [limp] | 7 kA |
| Nominal discharge current (8/20) [In] | 20 kA |
| Maximum discharge current [Imax] | 50 kA |
| Voltage protection level [Up] | ≤ 1.5 kV |
| Follow current extinguishing capability at Uc | 32A fuse will not be triggered at 2kA…255V |
| Response time [t] | ≤ 100 ns |
| Max. backupfuse (L) | 200A gL/gG |
| Max. backupfuse (L-L’) | 125A gL/gG |
| TOV voltage | 355V/5sec |
| Operating temperature range (parallel wiring) | -40℃ to +80℃ |
| Operating temperature range (through wiring) | -40℃ to +60℃ |
| Terminal cross-sectional area | 35 mm2 solid / 50 mm2 flexible |
| Mounting | on 35mm DIN rail |
| Enclosure material | Purple (module)/light gray (base) thermoplastic, UL94-V0 |
| Dimension | 2 modules |
| Type of remote signalling contact | Switching contact |
| Switching capacity AC | 250V/0.5A |
| Switching capacity DC | 250V / 0.1A; 125V / 0.2A; 75V / 0.5A |
| Cross-sectional area for remote signalling contact | Max. 1.5 mm2 solid/flexible |
| Standards | IEC 61643-11; GB 18802.1; YD/T 1235.1 |
| Certification | CE, RoHS, ISO 9001, CQC,TUV |
Why Choose CHAC
With 30+ years of manufacturing experience, 1100+ employees, 100M+ poles
annual capacity and 90% automated production, CHAC provides stable production capacity and strict
quality control for global OEM/ODM customers. Our in-house manufacturing system supports long-term
cooperation for electrical brands, importers and distributors.
30+
YEARS EXPERIENCE
Specialized in low-voltage electrical manufacturing
1100+
EMPLOYEES
Professional team ensures stable quality and delivery
100M+
POLES ANNUAL CAPACITY
Large-scale production capacity to meet global demand
90%
AUTOMATED PRODUCTION
Advanced automation for high efficiency and consistency
Automated Assembly Line
Testing Laboratory
Injection & Stamping
Quality Inspection
Strict quality control system ensures every product meets global standards.
What Can We Customize?
We support customization across branding, packaging, product appearance,
electrical specifications, certification requirements and engineering development. Whether customers
need private label products, market-specific parameters or new product development, CHAC can provide
flexible solutions based on project requirements.
Logo & Branding
Custom logo printing, laser marking and nameplate solutions.
Packaging
Customization
Customized color boxes, cartons, labels and manuals.
Electrical
Customization
Current, voltage, breaking capacity, trip curve and other
special functions.
Product
Appearance
Housing color, handle color and appearance customization.
Certification
Support
Products comply with international standards and market
requirements.
Engineering
Development
Drawing evaluation, prototype testing and mass production.
Download
CQB3 Series Miniature Circuit Breaker
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Need Technical Documents?
Contact us for datasheets, certificates, drawings, selection guidance or OEM/ODM project support.
ExS-T1T2-AC Product FAQ
What does the ExS-T1T2-AC SPD protect?
It is intended to limit transient overvoltage in the system stated by the product record. Confirm the AC or DC system, protection zone, discharge rating and backup protection for the selected variant.
How do I choose an SPD discharge rating?
Use the project's lightning and transient exposure, system arrangement and the device's published In, Imax or Iimp values. Do not select by nominal voltage alone.
Does an SPD replace a circuit breaker?
No. An SPD diverts transient energy, while a breaker or fuse provides overcurrent protection. The two devices must be coordinated.
What should be checked before installation?
Check voltage, wiring mode, earthing, backup fuse, lead length, enclosure and the manufacturer's connection diagram.
When should the module be replaced?
Use the status indicator and the product instructions. Investigate the cause of a fault indication before fitting a replacement module.
What documents can CHAC provide?
Request the applicable datasheet, wiring diagram, dimensions and verified compliance documents for the ordered configuration.
Confirm the Right ExS-T1T2-AC Configuration
Send the exact model, operating conditions, quantity, destination market and required documents. CHAC will review the request against the published product data.
