JBK3/JBK5 Machine Tool Control Transformer – Dry Isolation 63–250VA
JBK5-400VA
$186.82
Sale price
$186.82
Regular price
$231.61
Skip to product information
JBK3/JBK5 Machine Tool Control Transformer – Dry Isolation 63–250VA
$186.82
Sale price
$186.82
Regular price
$231.61
Shipping calculated at checkout.
JBK3 & JBK5 Series Machine Tool Control Transformer
Engineered for demanding industrial environments, the JBK3/JBK5 Series Dry Isolation Control Transformer delivers stable, reliable power isolation for CNC machines, elevators, grinding mills, milling machines, lathes, and other precision machine tools. Built with a high-conductivity copper coil winding, this transformer ensures efficient energy transfer, minimal heat buildup, and long-lasting durability in continuous-duty applications.
Whether you're powering control circuits on a CNC lathe, milling center, or elevator drive panel, the JBK3/JBK5 provides the clean, isolated voltage your equipment demands. Available in multiple VA ratings (63VA, 160VA, 250VA and more) — simply place your order and specify your required input/output voltage in the order notes.
Key Features
- Dry-Type Isolation Design — No liquid coolant needed; safe and maintenance-free for indoor industrial use
- Copper Coil Winding — Superior conductivity for low resistive losses and stable output voltage
- Wide VA Range — Available from 63VA up to 250VA to suit various machine tool control circuits
- Versatile Application — Compatible with CNC machines, lathes, milling machines, grinding machines, elevators, and more
- Custom Voltage Configuration — Specify your required primary and secondary voltage at checkout
- Compact & Robust Construction — Designed to fit standard machine tool electrical enclosures
- Low No-Load Loss — Energy-efficient operation reduces running costs over time
Specifications
| Parameter | Details |
|---|---|
| Series | JBK3 / JBK5 |
| VA Ratings Available | 63VA, 160VA, 250VA (specify at order) |
| Transformer Type | Dry Isolation (Air-Cooled) |
| Winding Material | Copper Coil |
| Applications | CNC Machines, Lathes, Milling, Grinding, Elevators |
| Voltage Configuration | Custom — specify input/output voltage in order notes |
| Country of Origin | Made in China (Mainland) |
Applications
The JBK3/JBK5 control transformer is widely used in:
- CNC (Computer Numerical Control) machining centers and turning centers
- Surface and cylindrical grinding machines
- Horizontal and vertical milling machines
- Metal lathes and engine lathes
- Elevator and lift motor control panels
- Industrial automation and machine tool electrical cabinets
Related Products You May Need
- 1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino
- 1-Channel SCR Solid State Relay Module DC3-24V 40A Optocoupler
- 0.25mm 1000-Turn Precision Copper Inductor Coil for DIY Circuits
Safety & Standards Reference
Transformer installations in industrial and commercial environments should comply with applicable electrical safety standards. For guidance on workplace electrical safety, refer to OSHA Electrical Safety Guidelines.
Frequently Asked Questions
Q: What VA rating do I need for my machine tool control transformer?
A: The VA (volt-ampere) rating you need depends on the total power consumption of the control circuit your transformer will serve. Add up the wattage of all connected control devices (relays, solenoids, indicators, PLCs) and select a VA rating at least 20–25% above that total for safe headroom. Common ratings in the JBK3/JBK5 series include 63VA, 160VA, and 250VA.
Q: Can I specify a custom input and output voltage for this transformer?
A: Yes. When placing your order, simply include a note specifying your required primary (input) voltage and secondary (output) voltage. This transformer series supports a wide range of common industrial voltages including 110V, 220V, 380V, and 440V primary inputs with various secondary output options.
Q: What is the advantage of a dry-type isolation transformer over an oil-filled type?
A: Dry-type isolation transformers use air cooling rather than liquid coolant, making them cleaner, safer, and virtually maintenance-free. They are ideal for indoor machine tool enclosures where leakage or fire hazard from oil would be a concern. The JBK3/JBK5 series is specifically designed for this type of enclosed industrial application.
Q: Why is a copper coil winding preferred in control transformers?
A: Copper coil windings offer lower electrical resistance than aluminum alternatives, resulting in less energy lost as heat, more stable output voltage under varying loads, and a longer operational lifespan — making copper-wound transformers the industry-preferred choice for precision machine tool control circuits.
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
