Custom
3 kVA Control Transformer, 1 Phase, 208V/240V to 120V
- Stock: In Stock
- Model: PBK-3kVA
- SKU: PBK-3kVA
$897.35
Ex Tax: $897.35
New style 3 kVA control transformer sold from factory directly, 1 phase, 240V/480V primary voltage, 120V secondary voltage, H class enameled wires, vacuum impregnated insulation. Quality step-down transformer worked as power supply in industrial equipment.
Specification
| Model | PBK-3kVA | ||
| Winding Material* | Enameled copper wire or enameled aluminum wire (Optional) | ||
| Capacity* | 3000VA (Customized) | ||
| Primary Voltage (VAC)* | 110, 120, 208, 220, 230, 240, 380, 400, 440, 460, 480, 110/220, 120/240, 240/480, 600...(Customized) | ||
| Secondary Voltage (VAC)* | 6, 12, 24, 36, 48, 110/48, 120/24, 208/36, 220/48, 230/36, 240/120, 120/24/12, 110/36/24, 127/36/6, 208/48/36/24...(Customized) | ||
| Withstand Voltage Test | Primary to secondary 2.5KV/min; Primary to safety ground 2.5KV/min; Secondary to safety ground 1.5KV/min. | ||
| Insulation Resistance | Primary to secondary 2500V>100 megohm; Primary to safety ground 2500V>100 megohm; Secondary to safety ground 1500V>100 megohm. | ||
| Frequency* | 50 / 60Hz | Insulation Level | F / H |
| Induction Withstand Voltage Test | 125Hz/ 800V/min | Ground Resistance | 25<A80 milliohm |
| Cooling Method | Natural or air cooling | Transformation Ratio | <3% |
| Air Carrying Current | <6% | Impedance Voltage | About 6% |
| Total Losses / Efficiency | 0.1 / 80%~99% | Operating Temperature | -25℃~40℃ (40℃, 93% RH, 56 days) |
| Noise | ≤35~65dB (A)(within 1 metre) | Storage Temperature | -25℃~100℃ (40℃, 93% RH, 56 days) |
| Certificate | CE, ISO | Designed Life | 30 years |
| Warranty | 1 year | Net Weight | 27.0 kg |
| Overall Size (A*B*C) | 192*210*220mm | Installation Dimension (D*E) | 140*160mm |
Control Transformer Features
- Terminal Block: High quality terminal block, excellent temperature resistance, pressure resistance and flame retardancy.
- Silicon Steel Sheet: New cold rolled silicon steel sheet, 0.27mm, 0.30mm, 0.35mm, excellent performance.
- Enameled Wires: H class, temperature resistance180℃, winded tightly and uniformly, no insulating layer, high heat dissipation, service life ≥35 years.
- Bobbin: Made of nylon, high temperature resistance, great flame retardancy, has ventilation slots between the coils for smooth air flows and reducing temperature of coils.
- Insulation Process: Vacuum impregnated insulation, temperature resistance of 180°C, lower noise, better insulation and is anti-rust and anti-corrosion.
The single phase control transformers are widely used in CNC machine tools and mechanical equipment, working lighting and signal lamp power supplies and can also be used as small power supplies.
Control Transformer Dimension &Schematic Diagram
KNOWLEDGE BASE --- Purpose of Control Transformer in Machine Control Systems
Control transformers are also known as machine tool transformers, industrial control transformers or control power transformers.
The control transformer can isolate electric to prevent electric shock, is convenient to obtain the appropriate voltage and features anti-interference function.
Control transformer is usually used in machine tools and mechanical equipment as electrical control lighting and indicator lights power supply. The control transformer occupies a very important position in the power transmission and distribution system and it is required to operate safely and reliably. When the control transformer is damaged in operation, it will cause a power outage. Therefore, the control transformer is a very important electrical equipment.
The control transformer is mainly suitable for AC 50H or 60Hz, circuits (≤1000V) and can work continuously for a long time under rated load and is typically used in industrial applications.
