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CBST Seris UL certified Singe-Phase Isolation Transformer
CBST series is a fully epoxy cast single-phase isolation transformer, specially developed for precision industrial equipment, server cabinets, battery production lines and European & American automated production lines. Adopting 1:1 galvanic isolation design, it can effectively eliminate zero-line voltage, suppress harmonic interference and prevent electric shock risks. The full epoxy resin encapsulation structure features fireproof, dustproof and moisture-proof performance, adapting to complex industrial environments.
This series has obtained and CE certificate, complying with UL5085 and IEC international standards. It is widely applicable to EU, Vietnam and other Southeast Asian industrial power grids (50/60Hz, AC 220V/380V, 230V/400V). It is the preferred power supporting product for precision testing instruments and cabinet terminal power distribution.
Model Explanation
JBK Seiris
- JBK3/JBK4: Traditional old structure, gradually phased out;
- JBK5: Mainstream universal type (our standard model, compact size, widely used worldwide);
- JBK6: New optimized type with enhanced vibration resistance, for high-end machine tools.
Note: All capacity specifications are universal among JBK3/4/5/6; we mainly supply JBK5 series for overseas market.
Core Features & Advantages
- 1:1 Complete Isolation: Primary and secondary windings have no direct electrical connection, thoroughly cut off zero-line voltage and harmonic conduction.
- Full Epoxy Cast Structure: Integral encapsulation, fire retardant, dustproof, damp-proof and anti-vibration, long service life.
- Dual Certifications: UL + CE approved, fully compliant with EU & North American import standards.
- Stable Output: Low voltage deviation, strong anti-interference, protect precision electronic components from abnormal voltage damage.
- Safe Protection: Excellent electric shock prevention performance, meeting EU electrical safety regulations for workshop equipment.
- Wide Voltage Adaptation: Support AC 380/220V, 400/230V dual voltage combinations for global power grids.
- Compact Layout: Small footprint, easy to install inside cabinets and narrow spaces.
Normal Working Conditions
- Altitude: ≤ 2000 m above sea level.
- Ambient Temperature: -10℃ ~ +45℃; Average temperature within 24h ≤ 35℃.
- Relative Humidity: ≤ 95% (Non-condensation), suitable for damp workshop environment.
- Working Medium: No corrosive gas, flammable and explosive substances.
- Power Parameter: Rated frequency 50/60Hz; Power voltage fluctuation range: ±10%.
- Installation Method: Indoor cabinet type or fixed wall mounting.
Technical Parameters
| Model | Rated Capacity | Primary/Secondary Voltage | Rated Frequency | Winding Material | Isolation Ratio |
|---|---|---|---|---|---|
| CBST-0.3 | 0.3 | 380/220 , 400/23 | 50/60Hz | Pure Copper | 1:1 |
| CBST-0.5 | 0.5 | 380/220 , 400/230 | 50/60Hz | Pure Copper | 1:1 |
| CBST-1.0 | 1.0 | 380/220 , 400/230 | 50/60Hz | Pure Copper | 1:1 |
| CBST-2.0 | 2.0 | 380/220 , 400/230 | 50/60Hz | Pure Copper | 1:1 |
| CBST-3.0 | 3.0 | 380/220 , 400/230 | 50/60Hz | Pure Copper | 1:1 |
Overall Dimension & Installation Size
| Model | Overall Size | Mounting Hole Spacing | Hole Diameter | Single Gross Weight |
|---|---|---|---|---|
| CBST-0.3 | 90 × 80 × 90 | 65 × 55 | 4.5 | 1.5 |
| CBST-0.5 | 95 × 85 × 95 | 65 × 55 | 4.5 | 2.0 |
| CBST-1.0 | 105 × 90 × 100 | 70 × 60 | 4.5 | 2.8 |
| CBST-2.0 | 115 × 95 × 105 | 75 × 65 | 5.0 | 3.8 |
| CBST-3.0 | 125 × 100 × 110 | 80 × 70 | 5.0 | 4.8 |
Packing SpecificationSize
| Model | Outer Carton Size | Quantity Per Carton |
|---|---|---|
| CBST-0.3 ~ CBST-3.0 | 130 × 110 × 120 | 1 Pcs/Box |
7. Professional Electrical Performance
- Dielectric Withstand Voltage: Primary to secondary ≥ 3000V AC / 1min; Winding to housing ≥ 4000V AC / 1min, no breakdown.
- Insulation Resistance: ≥ 200 MΩ (Room temperature), excellent insulation performance.
- Zero-line Voltage Suppression: Reduce zero-line voltage below 1V, adapt to precision equipment requirements.
- Harmonic Suppression Rate: Effectively filter 3rd~5th harmonic, harmonic suppression rate ≥85%.
- Temperature Rise: ≤40K under rated continuous operation, H-class insulation.
- Voltage Regulation: ≤3% at full load, ultra-stable output.
Application Scope
- Precision testing equipment & measuring instruments on automotive battery production lines;
- Server cabinets and internal power distribution of data centers;
- European & American imported automation machine tools and control cabinets;
- Medical electronic equipment and laboratory precision power supply;
- Factory workshop anti-electric shock isolation power supply;
- Widely exported to EU, Vietnam, Southeast Asia and other regions.
Custom & After-sales Remark
- Custom voltage ratios (120V/240V etc.) are available for special national power grids.
- All products pass full-load aging test and strict insulation test before delivery.
- Structure: Full epoxy cast, standard IP54 protection grade.
- OEM & ODM: Custom logo, nameplate and outer package are supported.
- Stock status: Conventional models are in stock, delivery time 3-5 working days.
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