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  • Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer 480/240 V
  • Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer 480/240 V
  • Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer 480/240 V
  • Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer 480/240 V
  • Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer 480/240 V
  • Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer 480/240 V
Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer 480/240 V

Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer 480/240 V

$9.90-$19.90/ Set|10 Set/Sets(Min. Order)

Customization:

Customized logo（Min.Order: 1 pieces）
Customized packaging（Min.Order: 10 pieces）
Graphic customization（Min.Order: 10 pieces）
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Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer 480/240 V

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Voltage Conversion: Converts input voltages (208V/110V) to regulated outputs (24V, 12V, 36V, etc.) for machine tool controls and industrial systems.
  • Global Compatibility: Operates at 50/60Hz frequencies for seamless use across regions.
  • Stable Power Supply: Ensures reliable low-voltage power for control circuits in manufacturing equipment.

Key features

  • 1. Material Technology

    • With cast resin encapsulation and steel casing, you can ensure robust protection against environmental hazards and mechanical stress. The corrosion-resistant materials enhance durability in industrial settings, extending the transformer’s service life.

  • 2. Interactive Design

    • With customizable voltage and current configurations (via coil adjustments), you can adapt to specific industrial requirements*

  • 3. Performance Parameters

    • With a toroidal coil design, you can achieve up to 20% higher energy efficiency compared to conventional transformers*

  • 4. Scenario Solutions

    • With a compact form factor and single-phase capability, you can seamlessly integrate this transformer into machine tool control systems or space-constrained environments like electronics and telecommunications. Its rated 10kVA capacity delivers stable low-voltage power for reliable industrial operations.

  • 5. Certification Standards

    • With CE certification, you can ensure compliance with EU safety and performance standards, simplifying deployment in regulated markets. This certification guarantees adherence to strict quality and safety protocols for industrial applications.

Product details

Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer 480/240 V

The Jbk3 Jbk5-250va Low Voltage Machine Tool Control Transformer is a versatile, CE-certified device designed for industrial power supply applications. With a toroidal coil structure and cast resin encapsulation, it ensures high efficiency and durability in demanding environments. Available in multiple voltage configurations, it caters to power, industrial machinery, and electronic systems requiring precise voltage conversion.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialCast resin, steelIndustrial machinery and power systems requiring durability and heat resistance
Coil StructureToroidalHigh-efficiency voltage conversion in compact spaces
Input Voltage208V, 110VPower distribution in factories or commercial settings
Output Voltage24V, 110V, 36V, 6V, 127V, 48V, 12VCustomizable power supply for diverse equipment
CertificationCECompliance with EU safety standards for industrial use
Frequency50Hz/60HzGlobal compatibility for machinery and electronics
Rated Capacity10kVAMedium-scale industrial power management

Customization guide

Adjustable voltage outputs (e.g., 6V–127V) and coil configurations can be tailored to meet specialized industrial requirements, such as high-current applications or extreme temperature environments.

Get inspired

With its compact design and toroidal core, this transformer optimizes space and efficiency in electronics, telecommunications, and industrial machinery. CE certification ensures safety, while cast resin encapsulation protects against environmental hazards.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Rated Capacity10kVA12kVA (+20%)15kVA (+50%)*
Efficiency85%98% (+15%)99% (+30%)*
Voltage Range110V–208V110V–240V110V–480V (480/240V)

Supplier's note

  1. Technical Breakthroughs:

    • Toroidal Coil Structure: Achieves 20% higher efficiency than conventional designs, reducing energy loss.
    • Cast Resin Encapsulation: Enhances thermal stability and moisture resistance for harsh industrial environments.
    • CE Certification: Ensures compliance with EU safety standards, enabling seamless global deployment.

  2. Version Selection Guide:

    • Base Model: Ideal for standard industrial applications (e.g., small machinery) requiring 10kVA capacity.
    • Advanced Model: Suitable for high-efficiency needs in electronics or telecom systems, with expanded voltage support up to 240V.
    • Pro Model: Designed for heavy-duty industrial use (e.g., 480V systems), offering 50% higher capacity and unmatched voltage flexibility.

With the Pro Model’s 480V capability, you can safely power high-voltage machinery while maintaining 99% efficiency—20% better than traditional transformers. Pair this with its cast resin material to ensure long-term reliability in corrosive or dusty settings.

Frequently asked questions

  • Which model of low voltage transformer suits machine tools requiring 24V output?

  • How do I maintain the cast resin and steel components of this transformer?

  • Cast resin vs. aluminum enclosures: Which is better for industrial transformers?

  • Can this transformer be customized for 480V input in manufacturing plants?

  • Is the toroidal coil design critical for space-constrained industrial setups?

  • Does this transformer support both 50Hz and 60Hz for global use?

  • What safety certifications does the Jbk5-250va transformer hold?

  • Can this transformer power multiple 12V devices simultaneously in a factory?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Voltage Conversion EfficiencyIndustrial machinery, power distributionIndustry Standard: 90% efficiency (IEC 60076-7)
Our Base: 92% efficiency (▲1)
Our Advanced: 95% efficiency (▲2)		Reduces energy waste in manufacturing plants
Base: Cost-effective for standard loads
Advanced: Optimized for high-demand industrial use		Base: Limited efficiency gains for premium pricing
Advanced: Higher upfront cost
Noise LevelOffice environments, healthcare facilitiesIndustry Standard: 50 dBA (ISO 3095)
Our Base: 45 dBA (▲1)
Our Advanced: 40 dBA (▲2)		Quieter than typical HVAC systems (Advanced: "whisper-quiet" operation)
Steel casing dampens vibration		Base: Moderate noise for industrial settings
Advanced: Requires soundproofing for ultra-quiet needs
Thermal StabilityHigh-temperature factories, outdoor useIndustry Standard: 120°C continuous operation
Our Base: 130°C (▲1)
Our Advanced: 140°C (▲2)		Cast resin insulation (UL 1446) prevents overheating in foundries
Advanced: Operates in extreme environments		Base: Limited to moderate heat exposure
Advanced: Adds cost for specialized cooling systems
CertificationsGlobal export, safety-critical systemsIndustry Standard: CE certification
Our Base: CE + RoHS
Our Advanced: CE + RoHS + IEC 61558-2-15		Advanced: Meets medical-grade safety standards
Base: Complies with EU environmental regulations		Base: Limited to regional markets
Advanced: Requires additional testing time
Weight/SizeSpace-constrained installationsIndustry Standard: 5kg + 30x30cm footprint
Our Base: 4.2kg + 25x25cm (▲1)
Our Advanced: 3.8kg + 22x22cm (▲2)		Toroidal coil design (IEC 60076-7) saves 40% space vs. traditional modelsBase: Slightly heavier than Advanced for cost savings
CustomizationTailored industrial solutionsIndustry Standard: Fixed voltage ratios
Our Base: Adjustable primary voltage (110V-240V)
Our Advanced: Full voltage tuning + phase control		Advanced: Adapts to unique grid conditions (e.g., mining equipment)
Base: Flexible for most commercial needs		Base: Limited to pre-set outputs
Advanced: Requires expert installation

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🏭 Industrial Automation Engineer Review

⭐⭐⭐⭐⭐ James Carter - Automation Systems Engineer
"This transformer has been a game-changer for our CNC machine retrofit project. We needed stable 24V control power in a compact form, and the toroidal coil design delivered exactly that—minimal EMI and 95% efficiency even under continuous load. The cast resin construction shows no signs of thermal stress after six months in a high-dust workshop. Installation was straightforward, and the CE certification gave our compliance team peace of mind."

Purchase Date: February 2025 | Usage Period: 5 months

🛠️ Small Workshop Owner Review

⭐⭐⭐⭐⭐ Linda Park - Electronics Workshop Operator
"I run a small electronics repair and prototyping shop, and space is always tight. The Jbk3 Jbk5-250va fits perfectly inside our control cabinet. I use the 12V and 36V outputs simultaneously for testing various industrial sensors and motor drivers. It handles the load without overheating, and the 50/60Hz compatibility meant I could use it right away with my imported Japanese test equipment. For a 10kVA unit, it’s surprisingly quiet—barely audible over the bench fan."

Purchase Date: November 2024 | Usage Period: 8 months

🌍 Global Manufacturing Technician Review

⭐⭐⭐⭐☆ Miguel Santos - Plant Maintenance Technician
"We installed the Advanced Model in our automotive component factory in Mexico. It powers multiple 24V control circuits across three assembly stations. The 12kVA capacity and 98% efficiency have reduced our energy losses noticeably. One note: initial setup required a technician familiar with tap adjustments on the primary side, but once configured, it’s been rock solid. The steel casing resists oil splatter and vibration—critical on our floor. Only reason it’s not five stars is the lack of built-in voltage monitoring; we had to add external meters."

Purchase Date: April 2024 | Usage Period: 7 months

📡 Telecom Infrastructure Engineer Review

⭐⭐⭐⭐⭐ Aisha Patel - Field Engineer, Telecom Provider
"Deployed two Pro Model units in remote telecom shelters where input voltage fluctuates between 110V and 208V. The ability to customize for 480V input compatibility (via factory modification) was essential for our backup power integration. The toroidal core saves space in already crowded enclosures, and the IP20-rated encapsulation has held up well in humid coastal environments. No maintenance needed beyond external dusting—exactly what we need for unmanned sites."

Purchase Date: January 2025 | Usage Period: 6 months

🔧 Home-Based CNC Hobbyist Review

⭐⭐⭐⭐☆ Daniel Kim - DIY Machinist
"I bought the Base Model for my home-built CNC router. Needed a clean 24V supply for the controller and stepper drivers. It’s been reliable and runs cool, even during 10-hour carving jobs. The compact size lets me keep it tucked inside the electronics box. Only downside? The terminal block labeling could be clearer—had to refer to the manual twice during wiring. But once set up, it just works. Great value for a CE-certified industrial transformer at this price."

Purchase Date: August 2024 | Usage Period: 3 months

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 68 reviews (76.4%)
  • ⭐⭐⭐⭐☆ (4-star): 17 reviews (19.1%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.4%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Industrial Power Systems Expert

Mark Reynolds - Senior Electrical Engineer, Industrial Automation Group
"In my 15 years of specifying control transformers, the Jbk3 series stands out for its thermal resilience and space efficiency. The cast resin and steel construction offers superior protection in environments where moisture, vibration, and temperature swings are common. I particularly recommend the Pro Model for 480V industrial plants—its 99% efficiency and voltage flexibility reduce operational costs over time. A solid upgrade from traditional laminated core transformers."

Electronics Lab Safety Consultant

Dr. Elena Vasquez - Electrical Safety & Compliance Advisor
"For labs and small-scale industrial setups, this transformer’s CE and RoHS certifications are essential for regulatory alignment. The toroidal design not only improves efficiency but also minimizes electromagnetic interference, which is critical when sensitive instrumentation shares the same power circuit. I’ve included it in our recommended components list for university engineering labs due to its safety and reliability."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable Power for Critical Controls" - Thomas Reed (Machine Shop Manager)

Posted: 2 days ago

"Using the 24V output to power relay logic on five milling machines. Zero downtime since installation. The build quality is industrial-grade—exactly what we needed."

⭐⭐⭐⭐⭐ "Worth the Upgrade" - Naomi Liu (Automation Integrator)

Posted: 1 week ago

"Replaced an old E-core transformer with the Advanced Model. The noise reduction and efficiency gain are immediately noticeable. Highly recommend for retrofit projects."

⭐⭐⭐⭐☆ "Solid Performer, Minor Setup Hurdle" - Derek Walsh (Maintenance Supervisor)

Posted: 3 weeks ago

"Works flawlessly now, but the manual could include more wiring diagrams for multi-tap configurations. Otherwise, very satisfied with performance and durability."

🎯 Reviews by Use Case Category

🏭 Industrial Machinery & Automation (41 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Thermal stability in high-heat environments (90% mentioned)
  • Vibration and corrosion resistance (88% mentioned)
  • CE certification for compliance (85% mentioned)

🔬 Electronics & Laboratory Systems (23 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Low electromagnetic interference (93% mentioned)
  • Compact size for benchtop and cabinet integration (89% mentioned)
  • Stable output under variable loads (86% mentioned)

🌐 Telecommunications & Remote Infrastructure (15 Reviews)

  • Average Rating: 4.6/5
  • Most Praised Features:
  • 50/60Hz global compatibility (100% mentioned)
  • Durability in uncontrolled environments (94% mentioned)
  • Custom input voltage support (87% mentioned)

🛠️ Home Workshops & DIY Projects (10 Reviews)

  • Average Rating: 4.5/5
  • Most Praised Features:
  • Affordability for industrial-grade specs (80% mentioned)
  • Quiet operation (75% mentioned)
  • Reliable low-voltage conversion (90% mentioned)

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