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DK Series - Single-Phase Control Transformers
The DK series single-phase control transformers provide stable voltage output for industrial control circuits, signal lighting, and auxiliary power supply applications. Compact design with high reliability.
Model Number Breakdown
DSingle-phase
KControl transformer
Key Features
- Single-phase 220V/380V input
- Stable output voltage for control circuits
- Compact and lightweight design
- High efficiency and low noise
Applications
- Machine tool control circuits
- Signal lighting systems
- Auxiliary power supply
- Industrial automation
TECHNICAL DRAWING
Model: DK-400VA | Type: Oil-immersed transformer | Capacity: 400 kVA
FRONT ELEVATION
ELECTRICAL SCHEMATIC
EFFICIENCY vs LOAD
SIDE VIEW
TOP VIEW
TERMINAL BLOCK
CORE & WINDING
LEGEND:
Iron core
HV winding/bushing
LV winding/bushing
Dimension line
Specifications Range
All specifications and dimensions can be customized upon request
Model Selector
| Key parameters | Model Range |
|---|---|
| Capacity | 25–3000 VA |
| Input voltage | ≤1000V |
| Output voltage | Custom |
| Frequency (Hz) | 50/60 |
| Efficiency | ≥85%, ≥90%, ≥93% |
| Allowed temperature rise | ≤65 K |
| Short-circuit impedance | ≤8% |
| Insulation class | Class B (130°C) |
Select 2-3 models to compare
| Compare | Model | Series | Capacity (kVA) | Input voltage | Output voltage | Frequency (Hz) | Weight | Dimensions |
|---|---|---|---|---|---|---|---|---|
| DK-25VA | DK | 25VA | ≤1000V | Custom | 50/60 | 110 kg | 78×84×90 mm | |
| DK-50VA | DK | 50VA | ≤1000V | Custom | 50/60 | 130 kg | 78×94×90 mm | |
| DK-100VA | DK | 100VA | ≤1000V | Custom | 50/60 | 130 kg | 112×94×115 mm | |
| DK-150VA | DK | 150VA | ≤1000V | Custom | 50/60 | 130 kg | 112×102×115 mm | |
| DK-200VA | DK | 200VA | ≤1000V | Custom | 50/60 | 130 kg | 112×110×115 mm | |
| DK-250VA | DK | 250VA | ≤1000V | Custom | 50/60 | 130 kg | 112×115×115 mm | |
| DK-300VA | DK | 300VA | ≤1000V | Custom | 50/60 | 130 kg | 112×120×115 mm | |
| DK-400VA | DK | 400VA | ≤1000V | Custom | 50/60 | 130 kg | 140×127×140 mm | |
| DK-500VA | DK | 500VA | ≤1000V | Custom | 50/60 | 130 kg | 140×132×140 mm | |
| DK-700VA | DK | 700VA | ≤1000V | Custom | 50/60 | 130 kg | 140×137×140 mm | |
| DK-1000VA | DK | 1000VA | ≤1000V | Custom | 50/60 | 130 kg | 170×170×165 mm | |
| DK-1500VA | DK | 1500VA | ≤1000V | Custom | 50/60 | 130 kg | 170×180×165 mm | |
| DK-2000VA | DK | 2000VA | ≤1000V | Custom | 50/60 | 130 kg | 200×185×200 mm | |
| DK-2500VA | DK | 2500VA | ≤1000V | Custom | 50/60 | 130 kg | 200×195×200 mm | |
| DK-3000VA | DK | 3000VA | ≤1000V | Custom | 50/60 | 130 kg | 200×205×200 mm |
Instant Selection & Quote Calculator
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2 · Your price
EXW (FOB Qingdao)
$2
Range $2 ~ $2 (±8%)
Price Breakdown
| Base price (interpolation) | $2 |
| × Product factor | ×1.0000 |
| × Country factor | ×1.0000 |
| × Copper-linked factor | ×1.0000 |
| + Options / accessories | $0 |
Shipping quoted separately per destination port.
Complete equipment — no winding copper linkage
Reference prices are for estimation only and do not constitute a formal offer.
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