




IEC 60335 Battery Enclosure Pressure Tester
The KP-35B3 is an IEC 60335 battery enclosure pressure tester designed for controlled pressure testing of applicable battery-operated appliances. It combines defined air-volume injection, automated pressure control and real-time monitoring to support laboratory safety evaluation and compliance testing.
- Standard Focus: Designed for battery enclosure pressure testing associated with IEC 60335-1 and applicable IEC 60335-2-120 requirements.
- What It Tests: Evaluates appliance enclosures incorporating integral metal-ion cells under a simulated cell venting pressure condition.
- Test Purpose: Used to assess pressure-relief performance and verify that the enclosure does not suffer unintended rupturing damage during the specified pressure test.
- Test Method: Applies a defined initial pressure and selected air volume while continuously monitoring the enclosure pressure response.
- Typical Users: Suitable for appliance manufacturers, product safety laboratories, R&D teams and conformity assessment laboratories conducting IEC 60335 battery-related safety testing.
Product Overview
The KP-35B3 IEC 60335 battery enclosure pressure tester is developed to simulate the internal pressure condition that may occur when an integral metal-ion cell vents inside an appliance enclosure during a fault condition. The test helps laboratories evaluate the enclosure’s pressure-relief response and determine whether unintended rupturing damage occurs under the specified test condition.
Unlike general battery pressure measurement instruments, the equipment performs a controlled test using a defined initial pressure, selected air volume and specified test orifice. Pressure changes are monitored throughout the test sequence, giving operators a clear view of how the enclosure responds to the applied pressure condition.
Automated process control, real-time pressure monitoring and test curve display make the KP-35B3 suitable for IEC 60335 compliance evaluation, product development and laboratory test documentation.
Applicable Standards and Test Purpose
The battery enclosure pressure tester is designed for applicable battery enclosure pressure test requirements associated with IEC 60335-1 and relevant requirements of IEC 60335-2-120.
For projects involving an IEC 60335-1 Annex B pressure test, the test condition is intended to simulate pressure associated with cell venting and evaluate the response of the appliance enclosure to the resulting internal overpressure.
Test Focus
The test evaluates the pressure-relief and structural response of the appliance enclosure. It is not intended to measure the internal pressure of an individual battery cell.
The applicable standard edition, test clause, sample construction and cell capacity should be confirmed before equipment configuration or quotation.
Technical Specifications
Key specifications of the IEC 60335 battery enclosure pressure tester are organized below for laboratory and purchasing review.
Pressure Test and Control
| Technical Item | Specification |
|---|---|
| Model | KP-35B3 |
| Test Stations | 6 stations |
| Control Method | PLC with touch-screen HMI |
| Pressure Drive | High-pressure pump |
| Test Medium | Gas |
| Test Pressure Range | 1–2.5 MPa |
| Pressure Monitoring | Pressure sensor with real-time monitoring |
| Pressure Curve | Real-time test pressure curve displayed on the control interface |
| Data Export | Test data export via USB |
| Test Time | 0–9999 s, adjustable |
| Test Process | Automatic test process |
Air Injection and Test Connection
| Technical Item | Specification |
|---|---|
| Air Volume Options | 6, 10, 20, 30, 50 and 100 mL |
| Test Orifice | Φ2.85 ±0.05 mm |
| Pipe Volume | <3 mL |
Power, Dimensions and Operating Environment
| Technical Item | Specification |
|---|---|
| Atmospheric Pressure | 80–106 kPa |
| Ambient Temperature | 5–40°C |
| Relative Humidity | 20–80% RH |
| Installation Environment | Stable installation area without severe vibration, strong electromagnetic interference, excessive dust, explosive gases or corrosive gases; adequate heat dissipation required |
| Equipment Dimensions | 1320 × 660 × 1250 mm |
| Equipment Weight | Approx. 200 kg |
| Power Supply | AC 220 V ±10%, 50–60 Hz |

What Does the Battery Enclosure Pressure Tester Evaluate?
The KP-35B3 is intended to evaluate an appliance enclosure incorporating integral metal-ion cells under a defined pressure condition.
During the test, the enclosure is subjected to the specified pressure and air-volume sequence. The resulting pressure change is monitored to assess the pressure-relief response of the enclosure and determine whether unintended rupturing damage occurs.
This test purpose distinguishes the KP-35B3 from battery crush testers, short-circuit testers and cell internal pressure measurement systems. The equipment is specifically intended for battery enclosure pressure safety evaluation under applicable IEC 60335 test requirements.
Testing Principle
The sample enclosure is connected to the pressure system through the specified test connection. A high-pressure pump establishes the required initial pressure, while a pressure sensor continuously feeds the actual pressure value back to the control system.
Specified initial sample pressure
Defined air injection orifice
Continuous pressure response observation
For the specified test sequence, the initial sample pressure is established at 2070 kPa ±10%. A defined volume of air is then introduced through a Φ2.85 ±0.05 mm orifice by the air injection mechanism.
The IEC 60335 battery enclosure pressure tester continuously monitors pressure changes during the test. The pressure response is displayed through the touch-screen interface, allowing the operator to follow the test process and evaluate the enclosure according to the applicable pressure reduction requirement.
This controlled test sequence provides more complete process information than a final visual inspection alone.
Automated Pressure Control and Test Monitoring
The KP-35B3 uses PLC control and a touch-screen HMI to manage the pressure test process. Test pressure and test time can be set through the operating interface, while real-time pressure sensor feedback supports continuous monitoring of the actual test pressure.
Pressure Curve Display
The control system displays the pressure curve generated during the test process, helping operators review pressure development and subsequent pressure reduction. For laboratories conducting an IEC 60335-1 Annex B pressure test, the curve provides a clear visual record of the pressure response during the test sequence.
Automatic Test Process
The system integrates pressure control, monitoring and test timing within an automatic operating sequence. This reduces repeated manual intervention during pressure testing and supports a more controlled laboratory workflow.
Test data can also be exported through USB for subsequent review and laboratory documentation.
Six-Station Test Configuration
The KP-35B3 is configured with six test stations and integrates pressure control, air-volume injection and test monitoring within a single test system.
The sample connection method and applicable station setup should be confirmed according to the test object and standard requirement before quotation.
Selectable Air Volume Configuration
The system provides defined air-volume options of 6, 10, 20, 30, 50 and 100 mL. The applicable air volume is selected according to the capacity of the highest-capacity metal-ion cell incorporated in the appliance.
| Metal-Ion Cell Capacity | Air Volume |
|---|---|
| 0.2 Ah ≤ Ah < 1 Ah | 6 mL |
| 1 Ah ≤ Ah < 3 Ah | 10 mL |
| 3 Ah ≤ Ah < 5 Ah | 20 mL |
| 5 Ah ≤ Ah < 25 Ah | 30 mL |
| 25 Ah ≤ Ah < 100 Ah | 50 mL |
| Ah ≥ 100 Ah | 100 mL |
Air Volume Selection Note
The selected air volume should correspond to the applicable test requirement and the capacity of the highest-capacity metal-ion cell in the appliance. Cell capacity, appliance type and applicable standard information should be provided for configuration review.
Typical Applications
The KP-35B3 battery enclosure pressure tester is intended for manufacturers and laboratories evaluating applicable battery-operated appliances incorporating integral metal-ion cells.
For products subject to applicable IEC 60335-2-120 requirements, the equipment can support relevant battery enclosure pressure testing when required by the applicable standard and test clause.
Why Use a Dedicated IEC 60335 Battery Enclosure Pressure Tester?
A general pressure source may be capable of pressurizing a sample, but the applicable enclosure pressure test also involves a defined initial pressure, selected air volume, specified test orifice and continuous observation of the pressure response.
The KP-35B3 combines these functions within a controlled test system designed around the required pressure test sequence.
For laboratories performing an IEC 60335-1 Annex B pressure test, this integrated setup helps simplify test preparation, monitor pressure changes and retain test data for subsequent review.
Configuration Notes
The appropriate test configuration may depend on the applicable standard edition, test clause, sample construction and metal-ion cell capacity.
- Applicable IEC standard and edition
- Required test clause
- Appliance and enclosure type
- Metal-ion cell chemistry
- Capacity of the highest-capacity cell
- Sample pressure connection or interface
- Test data and documentation requirements
Providing this information before quotation helps determine whether the standard KP-35B3 configuration is suitable for the intended test project or whether additional configuration review is required.
Compliance & Regulatory Assurance
- The KP-35B3 supports battery enclosure pressure testing associated with IEC 60335-1 and applicable IEC 60335-2-120 requirements. As an IEC 60335 battery enclosure pressure tester, it helps laboratories and appliance manufacturers evaluate enclosure pressure-relief response during product development, pre-compliance verification and safety testing.
- To support standard-based testing, the applicable IEC edition, test clause, appliance enclosure structure, highest-capacity metal-ion cell and sample connection method should be confirmed before ordering. The required air-volume configuration and pressure test setup can then be reviewed according to the specific test project.
IEC 60335 Battery Enclosure Pressure Tester
Download the PDF catalogue for product overview, technical specifications,
pressure test principle, selectable air-volume configurations and laboratory
application information.
Technical Inquiry & Expert Support
For correct test configuration, please share the following information when sending an inquiry. This helps confirm whether the KP-35B3 IEC 60335 battery enclosure pressure tester matches your standard, appliance enclosure and metal-ion cell configuration before quotation or purchase.
| Information Needed | Example |
|---|---|
| Applicable standard | IEC 60335-1 or applicable IEC 60335-2-120 requirements |
| Required test clause | IEC 60335-1 Annex B pressure test or applicable project clause |
| Appliance and enclosure type | Battery-operated appliance and enclosure construction |
| Metal-ion cell information | Cell chemistry and capacity of the highest-capacity cell |
| Cell capacity | Capacity value in Ah for air-volume configuration review |
| Sample connection | Pressure interface, connection method or sample connection details |
| Data requirements | Pressure curve review, USB data export or project documentation requirements |
KINGPO can review your standard, test clause, cell capacity and sample connection information before quotation. This helps confirm the appropriate air-volume configuration and pressure test setup for your laboratory, product development or compliance testing project.
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