LMBK Single Phase Control Transformer | 50–5000VA, 24/36/110/220/380V
LMBK Single Phase Control Transformer | 50–5000VA, 24/36/110/220/380V
RBK (BK) series control transformer is based on domestic BK series control transformer. After years of further absorbing the advantages of similar products at home and abroad, it is manufactured with advanced technology and rigorous design, it is an ideal transformer power supply with excellent performance, reliable operation, low energy consumption, small size, safe connection and wide applicability. The company’s RBK Transformer won the National Patent product title.
RBK (BK) series control transformer is based on domestic BK series control transformer. After years of further absorbing the advantages of similar products at home and abroad, it is manufactured with advanced technology and rigorous design, it is an ideal transformer power supply with excellent performance, reliable operation, low energy consumption, small size, safe connection and wide applicability. The company’s RBK Transformer won the National Patent product title.
1. Product Overview
2. Key Features
- ✅ High-Quality Copper Winding: 100% copper coil for low resistance, minimal heat generation, and high efficiency (≥85%).
- ✅ Low-Loss Silicon Steel Core: Grain-oriented silicon steel sheet reduces no-load loss and noise (≤45dB).
- ✅ Multiple Voltage Options: Primary 220V/380V; Secondary 24V/36V/110V/220V (custom available).
- ✅ Compact & Rugged Design: IP20 protection, steel enclosure, dustproof, moisture-resistant, suitable for cabinet installation.
- ✅ F-Class Insulation: Withstands high temperature (155°C), stable operation under 1.1× rated current.
- ✅ Easy Installation: DIN rail or foot mounting; screw terminals with protective cover for safe wiring.
- ✅ Long Lifespan: Vacuum impregnation treatment, anti-corrosion, anti-aging, 10+ years service life.
3. Technical Specifications
| Parameter | Value |
|---|---|
| Phase | Single Phase |
| Rated Capacity | 50VA, 100VA, 150VA, 200VA, 300VA, 500VA,1000VA,2000VA,3000VA,5000VA |
| Primary Voltage | 220V / 380V (50/60Hz) |
| Secondary Voltage | 24V, 36V, 110V, 220V (customizable) |
| Efficiency | ≥85% |
| Insulation Class | F (155°C) |
| Protection Class | IP20 |
| Core Material | Grain-oriented cold-rolled silicon steel |
| Winding Material | 100% oxygen-free copper |
| Mounting Type | DIN Rail / Foot Mounting |
| Operating Temperature | -20°C ~ +50°C |
| Standards | IEC60076, ISO9001, CE |
4. Applications
- Machine Tools: Lathes, mills, drills, CNC machines (control circuit power).
- Industrial Automation: PLC, sensors, relays, contactors (low-voltage control supply).
- Lighting Systems: Factory, warehouse, emergency lighting (24V/36V safe voltage).
- Electrical Equipment: Control panels, distribution boxes, instrumentation.
- Marine & Mining: Harsh environment control systems (dustproof, moisture-resistant).
5. Dimensions & Installation
- Mounting: DIN rail (35mm) or fixed foot mounting (holes for M4 screws).
- Wiring: Screw clamp terminals with transparent cover (prevents electric shock).
- Cooling: Natural air cooling (no fan required, low noise).
- Installation Tips: Keep away from heat sources; ensure ventilation; avoid overloading.
6. FAQ
Q1: What is a control transformer used for?
A1: It steps down high voltage (220V/380V) to low voltage (24V/36V/110V) for safe control circuits in industrial machines and automation systems.
Q2: Can I customize voltage and capacity?
A2: Yes, we support OEM/ODM. Provide your required primary/secondary voltage and VA rating.
Q3: Is this transformer suitable for outdoor use?
A3: Standard model is IP20 (indoor use). IP54 outdoor model available upon request.
Q4: What is the warranty period?
A4: 18 months warranty against manufacturing defects.
7. Call to Action (CTA)
🔹 Request a Quote: Get wholesale price for bulk orders.
🔹 Download Datasheet: Full technical drawings and specs.
🔹 Contact Us: Professional engineering support for custom solutions.
1. Product Overview
2. Key Features
- ✅ High-Quality Copper Winding: 100% copper coil for low resistance, minimal heat generation, and high efficiency (≥85%).
- ✅ Low-Loss Silicon Steel Core: Grain-oriented silicon steel sheet reduces no-load loss and noise (≤45dB).
- ✅ Multiple Voltage Options: Primary 220V/380V; Secondary 24V/36V/110V/220V (custom available).
- ✅ Compact & Rugged Design: IP20 protection, steel enclosure, dustproof, moisture-resistant, suitable for cabinet installation.
- ✅ F-Class Insulation: Withstands high temperature (155°C), stable operation under 1.1× rated current.
- ✅ Easy Installation: DIN rail or foot mounting; screw terminals with protective cover for safe wiring.
- ✅ Long Lifespan: Vacuum impregnation treatment, anti-corrosion, anti-aging, 10+ years service life.
3. Technical Specifications
| Parameter | Value |
|---|---|
| Phase | Single Phase |
| Rated Capacity | 50VA, 100VA, 150VA, 200VA, 300VA, 500VA,1000VA,2000VA,3000VA,5000VA |
| Primary Voltage | 220V / 380V (50/60Hz) |
| Secondary Voltage | 24V, 36V, 110V, 220V (customizable) |
| Efficiency | ≥85% |
| Insulation Class | F (155°C) |
| Protection Class | IP20 |
| Core Material | Grain-oriented cold-rolled silicon steel |
| Winding Material | 100% oxygen-free copper |
| Mounting Type | DIN Rail / Foot Mounting |
| Operating Temperature | -20°C ~ +50°C |
| Standards | IEC60076, ISO9001, CE |
4. Applications
- Machine Tools: Lathes, mills, drills, CNC machines (control circuit power).
- Industrial Automation: PLC, sensors, relays, contactors (low-voltage control supply).
- Lighting Systems: Factory, warehouse, emergency lighting (24V/36V safe voltage).
- Electrical Equipment: Control panels, distribution boxes, instrumentation.
- Marine & Mining: Harsh environment control systems (dustproof, moisture-resistant).
5. Dimensions & Installation
- Mounting: DIN rail (35mm) or fixed foot mounting (holes for M4 screws).
- Wiring: Screw clamp terminals with transparent cover (prevents electric shock).
- Cooling: Natural air cooling (no fan required, low noise).
- Installation Tips: Keep away from heat sources; ensure ventilation; avoid overloading.
6. FAQ
Q1: What is a control transformer used for?
A1: It steps down high voltage (220V/380V) to low voltage (24V/36V/110V) for safe control circuits in industrial machines and automation systems.
Q2: Can I customize voltage and capacity?
A2: Yes, we support OEM/ODM. Provide your required primary/secondary voltage and VA rating.
Q3: Is this transformer suitable for outdoor use?
A3: Standard model is IP20 (indoor use). IP54 outdoor model available upon request.
Q4: What is the warranty period?
A4: 18 months warranty against manufacturing defects.
7. Call to Action (CTA)
🔹 Request a Quote: Get wholesale price for bulk orders.
🔹 Download Datasheet: Full technical drawings and specs.
🔹 Contact Us: Professional engineering support for custom solutions.
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