JKB5-250 Industrial Control Transformer - 230VAC Primary Input, Multi-Tap Secondary Output (12V/24V/110V), 250VA Power Rating, Single Phase Isolation Transformer

Description:

The JKB5-250 is a heavy-duty single-phase control transformer specifically designed for demanding industrial automation, manufacturing equipment, and power distribution systems requiring multiple secondary voltage options with higher power capacity. This 250VA rated transformer provides dependable voltage conversion from a standard 230V AC primary input to selectable secondary outputs of 12V, 24V, or 110V AC, making it ideal for power-intensive control applications.

Key Features:

• Primary Voltage: 230V AC ±10%, 50/60Hz
• Secondary Voltages: 12V / 24V / 110V AC (selectable multi-tap configuration)
• Power Rating: 250VA continuous duty cycle
• Transformer Type: Single-phase isolation transformer with premium-grade copper windings
• Insulation Class: Class F (155°C rated) for enhanced thermal performance
• Core Material: High-quality silicon steel laminations for reduced core losses
• Protection: Built-in thermal overload protection with automatic reset
• Mounting Options: Versatile DIN rail, panel mount, or chassis mount configurations

Applications: Engineered for heavy-duty control circuits, multi-zone PLC systems, industrial process lighting, commercial HVAC control panels, CNC machine tools, automated assembly lines, robotic systems, conveyor controls, packaging machinery, and high-current electronic device power conversion. The robust 250VA capacity handles demanding loads while the multi-voltage output eliminates the need for multiple transformer units.

Technical Specifications:

• Efficiency: ≥88%
• Regulation: ≤5% (full load to no load)
• Dielectric strength: 3500V AC (1 minute duration test)
• Insulation resistance: ≥200MΩ at 500VDC
• Operating temperature range: -25°C to +45°C ambient
• Storage temperature: -40°C to +80°C
• Altitude: Up to 2000m without derating
• Protection degree: IP20 standard (IP44/IP54 enclosed versions available)
• Acoustic noise level: <45dB at 1 meter
• Weight: Approximately 2.5-3.5 kg (depending on configuration)
• Compliant with IEC 61558-2-4, UL 5085-1, and CSA C22.2 safety standards
• CE marked, RoHS 2011/65/EU compliant, REACH compliant

Physical Specifications:

• Compact design optimized for control panel integration
• Heavy-duty terminal blocks rated for up to 16mm² wire
• Color-coded wiring terminals for easy installation
• Multiple mounting holes for secure installation
• Ventilated enclosure for superior heat dissipation
• Optional terminal covers for added safety

Electrical Performance:

• Low no-load current consumption
• Excellent load regulation characteristics
• Low electromagnetic interference (EMI)
• High short-circuit withstand capability
• Inrush current limiting design

Quality & Reliability: Constructed with premium materials including high-grade M19 silicon steel core laminations for maximum efficiency and minimal losses. Features Class F insulation system with polyester-imide enameled copper wire ensuring exceptional thermal stability and extended service life. Vacuum pressure impregnation (VPI) process provides superior moisture resistance and mechanical strength. Each transformer undergoes comprehensive factory testing including:

• High voltage dielectric testing
• Full load burn-in testing (4 hours minimum)
• Thermal rise verification
• Regulation and efficiency testing
• Insulation resistance measurement

Installation & Safety: Easy installation with clear terminal markings and comprehensive wiring diagrams included. Suitable for indoor environments with normal pollution levels. Recommended for use with appropriate overcurrent protection devices. Service factor: 1.15 for intermittent overload capability.

Warranty & Support: Backed by comprehensive manufacturer warranty and technical support. Replacement parts and service documentation available.