UL 2580 Clause 26 Short Circuit Tester
The UL 2580 Clause 26 Short Circuit Tester is a temperature controlled external short circuit testing system for lithium battery and battery pack safety evaluation. It provides high-current short circuit capability up to 2000A, chamber temperature control, current / voltage / temperature monitoring and safety protection structures for battery abuse testing under defined laboratory conditions.
- Designed for UL 2580 Clause 26 external short circuit testing
- High-current short circuit capability up to 2000A DC
- Fast DC response time of ≤5μs
- Temperature controlled chamber from RT+10℃ to 100℃
- PLC control with touch screen operation
- Current, voltage and temperature monitoring
- Built-in short circuit resistor configuration for different test requirements
- Reinforced chamber door with explosion-proof lock structure
- Pressure relief system and smoke exhaust design
- Double-layer tempered glass viewing window
- USB data export in CSV format
UL 2580 Clause 26 Short Circuit Tester Overview
UL 2580 Clause 26 Short Circuit Tester
The UL 2580 Clause 26 Short Circuit Tester is used to simulate an external short circuit condition for lithium batteries and battery packs under controlled temperature conditions. During testing, the battery sample is placed inside the chamber and connected to the external short circuit circuit while key test data are monitored.
This equipment is suitable for battery manufacturers, EV battery laboratories, third-party testing institutions, R&D centers and quality control departments that need to evaluate battery behavior under high-current short circuit conditions.
The system supports repeatable battery abuse testing by combining short circuit control, chamber conditioning, safety protection and test record support in one integrated test platform.
Test Performance and Chamber Specifications
| Parameter | Specification | Remark or Notes |
|---|---|---|
| Product name | UL 2580 Clause 26 Short Circuit Tester | Temperature controlled external short circuit tester |
| Model number | SN551-2000A | Original model from product page |
| Applicable standard | UL 2580 Clause 26 | External short circuit test application |
| Test object | Lithium batteries and battery packs | Confirm sample voltage, capacity and size before ordering |
| Maximum load current | 2000A DC | High-current short circuit capability |
| DC response time | ≤5μs | Fast short circuit response |
| Built-in resistor | 20±0.2mΩ / 20±5mΩ and 80±20mΩ listed | Final resistor configuration should be confirmed before order |
| Chamber size | W650 × D650 × H500 mm | Internal test chamber dimensions |
| Temperature range | RT+10℃ to 100℃ | Presettable chamber temperature |
| Temperature rise rate | 3±1℃/min | According to original product information |
| Temperature uniformity | ±2℃ | According to original product information |
Control, Safety and Documentation Information
| Parameter | Specification | Remark or Notes |
|---|---|---|
| Control method | PLC control with touch screen | For parameter setting and operation |
| Data acquisition | Current, voltage and temperature channels | For test monitoring and record keeping |
| Current range | 0–2000A DC | 1 current channel |
| Voltage range | 0–100V DC | 1 voltage channel |
| Battery surface temperature range | -20℃ to 1000℃ | 1 surface temperature channel |
| Data rate | 1 sample / second | For all channels |
| Sample rack | SUS #201 perforated steel, 30 kg per layer | Adjustable height |
| Safety design | Reinforced door, pressure relief, smoke exhaust and observation window | For battery abuse testing safety support |
| External dimensions | Approx. W900 × D850 × H1500 mm | Overall equipment size |
| Weight | Approx. 300 kg | Installation floor load should be confirmed |
| Power supply | AC 220V, 50/60Hz, 3kW | Confirm local power supply before order |
| Certification support | Calibration Certificate available | Cost additional according to original product page |
| Packaging | Plywood case | For export shipment |
Testing Principle and Result Evaluation
The UL 2580 Clause 26 Short Circuit Tester creates a controlled external short circuit condition for lithium batteries or battery packs. The battery sample is placed inside the temperature controlled chamber, and the short circuit circuit is configured according to the required test condition, chamber temperature, resistor configuration and termination setting.
| 1. Test Setup
Confirm sample information, chamber temperature, resistor configuration, cable connection, sensor position and termination condition. |
2. Short Circuit Test
The external short circuit condition is applied while current, voltage, chamber temperature and battery surface temperature are monitored. |
3. Result Review
Evaluate voltage drop, current change, temperature rise, smoke, venting, rupture, fire or other abnormal reactions. |
Result Evaluation Reference
The test may be stopped when the preset short circuit time is reached or when the battery temperature drops according to the defined test condition. The equipment provides the required test condition and data acquisition support, while final evaluation should follow the applicable standard and laboratory procedure.
Common Error Mitigation
Reliable external short circuit testing depends on correct test setup, safe installation and accurate data recording. Laboratories should avoid the following issues:
| ●Selecting the tester only by maximum current without confirming sample voltage and capacity | ● Ignoring the required short circuit resistance specified by the test standard |
| ● Not confirming whether the resistor configuration matches the actual test requirement | ● Using undersized cables or unsuitable battery connection fixtures |
| ● Running the test without proper ventilation and smoke exhaust preparation | ● Opening the chamber before the required observation period is complete |
| ● Recording only final results without saving current, voltage and temperature data | ● Treating the equipment certificate as a battery product certification certificate |
Installation and Laboratory Safety Notes
Battery external short circuit testing is a high-risk abuse test. The equipment should be installed in a ventilated laboratory with smoke exhaust, emergency access, fire protection equipment and operator safety procedures.
| Installation Check:Confirm floor load, equipment clearance, grounding, power supply, exhaust connection and safe operating space. | Operator Safety:Confirm emergency stop function, test area control, PPE requirements and internal laboratory emergency procedures. | Abuse Test Risk:Battery samples may release smoke, heat, gas, flame or debris under abuse conditions. |
Maintenance and Documentation Support
| Maintenance Inspection:After testing, the chamber should be inspected for smoke contamination, residue, corrosion, cable damage or fixture wear. The observation window, sealing strip, pressure relief device, exhaust port, sample rack and connection terminals should be checked regularly. | Recommended Documentation:Formal laboratory use should keep equipment specification, calibration certificate, resistor verification record, acquisition record, setup photo, sample information, test condition, abnormal condition observation and final test report. |
Documentation Support
Calibration Certificate support is available. Users should confirm whether certification, inspection records, resistor verification or additional documentation are required before order.
Standards Compliance Notes
This tester is designed to support UL 2580 Clause 26 external short circuit testing for lithium batteries and battery packs. It may also be configured for related battery short circuit test requirements depending on the applicable standard, sample type, resistor condition, temperature condition and laboratory procedure.
Final compliance does not depend on the equipment alone. The test result should be evaluated based on the official standard, sample preparation, test setup, short circuit resistance, chamber temperature, observation period, recorded data and laboratory acceptance criteria.
The equipment should be described as a test system for supporting UL 2580 Clause 26 testing, not as a product certification result. If a calibration certificate is required, the certificate scope and covered parameters should be confirmed before ordering.
Technical Inquiry & Configuration Support
Before requesting a quotation, customers are recommended to provide the following information:
- Applicable standard: UL 2580 Clause 26 or other battery safety standard
- Battery type: cell, module or battery pack
- Battery voltage and capacity
- Maximum expected short circuit current
- Required short circuit resistance
- Required chamber temperature condition
- Sample size and weight
- Data acquisition requirements
- Required certificate or calibration document
- Local power supply
- Laboratory ventilation and exhaust conditions
- Required delivery time and installation support
Based on this information, Kingpo can confirm whether the SN551-2000A UL 2580 Clause 26 Short Circuit Tester is suitable for the customer’s test requirement.
UL 2580 Clause 26 Short Circuit Tester
UL 2580 Clause 26 Short Circuit Tester FAQs
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