Industrial Heating & Motor Control Solution – SanRex UF3-0150F | UF3 Series Three-Phase Power Regulator
The SanRex UF3-0150F is a high-performance three-phase thyristor power regulator engineered for precision power control in demanding industrial environments. Designed for continuous-duty operation, this unit delivers stable, phase-angle-controlled output to resistive and inductive loads — making it the preferred choice for process engineers who require repeatable, energy-efficient thermal management.
Where This Product Is Used
The UF3-0150F is specified across a wide range of industrial applications where precise, stepless power control is critical:
- Industrial Resistance Furnaces & Kilns — Ceramic sintering, glass annealing, and heat treatment furnaces requiring stable temperature ramp profiles
- Plastic Extrusion & Injection Molding — Barrel heater band control for consistent melt temperature in polymer processing lines
- Chemical & Pharmaceutical Reactors — Jacketed vessel heating where precise thermal uniformity is mandated by GMP standards
- Semiconductor & Electronics Manufacturing — Reflow oven and diffusion furnace control in cleanroom environments
- Food Processing & Sterilization — Continuous-flow heating systems requiring hygienic, repeatable temperature control
- HVAC & Industrial Drying — Air-handling unit heater banks and industrial dryer drum control
- Motor Soft-Start Applications — Controlled ramp-up of three-phase induction motors to reduce mechanical stress and inrush current
Technical Specifications
| Model | UF3-0150F |
| Brand | SanRex (Japan) |
| Series | UF3 — Three-Phase Thyristor Power Regulator |
| Phase Configuration | Three-Phase (3φ) |
| Control Method | Phase-Angle Control (PAC) |
| Rated Current | 150 A |
| Applicable Voltage | 200–480 V AC (50/60 Hz) |
| Load Type | Resistive / Inductive |
| Control Signal Input | 4–20 mA / 0–10 V DC (configurable) |
| Cooling Method | Forced Air (Fan-Cooled) |
| Protection Class | IP20 |
| Mounting | DIN Rail / Panel Mount |
| Weight | Approx. 400 g |
| Origin | Japan |
Why Engineers Specify This Model
- 150 A Continuous Rating — Handles high-current loads without derating in ambient temperatures up to 40°C
- Phase-Angle Control Precision — Smooth, stepless power adjustment eliminates thermal shock to heating elements, extending element service life by up to 3×
- SanRex Thyristor Quality — SanRex (Sansha Electric Mfg.) thyristors are manufactured to JIS and IEC standards with 100% factory burn-in testing
- Universal Signal Compatibility — Accepts both 4–20 mA and 0–10 V control signals, integrating directly with PLCs, DCS, and temperature controllers from Omron, Siemens, Yokogawa, and Honeywell
- Compact Form Factor — High power density design minimizes panel space requirements in retrofit and new-build control cabinets
- Proven Field Reliability — UF3 series units are deployed in automotive, chemical, and semiconductor plants across Asia, Europe, and North America
Complete System Bill of Materials
For a complete power regulation system using the UF3-0150F, engineers typically specify the following complementary components:
- Temperature Controller (e.g., Omron E5CC, Yokogawa UT35A) — closed-loop PID signal source
- Current Transformer (CT) — for load current monitoring and feedback
- Semiconductor Fuses (fast-acting, 150 A class) — thyristor protection
- Heat Sink / Cooling Fan Assembly — if not included in enclosure design
- EMI/RFI Line Filter — for CE-compliant installations
- Shielded Control Cable (twisted pair) — for 4–20 mA signal integrity
- DIN Rail Mounting Hardware — for panel integration
Contact support@konmask.com for complete BOM sourcing assistance.
Compliance & Industry Standards
- Manufactured in compliance with JIS C 8374 (Japanese Industrial Standard for thyristor power controllers)
- Meets IEC 60947-4 low-voltage switchgear and controlgear requirements
- CE marking applicable for EU installations (verify with local integrator)
- RoHS compliant — no restricted hazardous substances
- Suitable for use in UL 508A-compliant industrial control panels (verify with AHJ)
Quality Assurance & Sourcing
Konmask.com sources SanRex UF3-0150F units exclusively through authorized industrial distribution channels. Every unit undergoes the following verification process before shipment:
- Visual inspection against OEM packaging and labeling standards
- Date code and lot traceability verification
- Functional continuity check
- Anti-static packaging for electrostatic-sensitive components
We do not source from gray-market or unverified secondary suppliers. Counterfeit thyristor modules are a known risk in the industrial components market — our sourcing process protects your installation and your warranty.
How to Source This Part
- In Stock: Add to cart and proceed to checkout — most orders ship within 1–3 business days
- Bulk / OEM Orders: Contact support@konmask.com for volume pricing and lead time on quantities of 5+ units
- Urgent / Emergency Replacement: Call or WhatsApp +0086 19859288691 for expedited sourcing and same-day quotation
- Technical Pre-Sales Support: Our engineering team can confirm compatibility with your existing control system before you order
Application-Specific FAQ
Q: Can the UF3-0150F control a resistive heating element directly at 380 V three-phase?
A: Yes. The UF3-0150F is rated for 200–480 V AC three-phase operation and is designed for direct resistive load control. Ensure semiconductor fuses are installed in series for thyristor protection.
Q: Is this unit compatible with a Siemens S7-1200 PLC analog output (0–10 V)?
A: Yes. The UF3-0150F accepts 0–10 V DC control input, which is directly compatible with Siemens S7-1200/1500 analog output modules (AQ) without additional signal conditioning.
Q: What is the difference between the UF3-0150F and the UF3-0100F?
A: The primary difference is rated current capacity — 150 A vs. 100 A. Select the UF3-0150F for loads requiring 100–150 A continuous current. Both units share the same control interface and mounting footprint.
Q: Does this unit include built-in soft-start functionality?
A: The UF3 series supports ramp-up control via the external control signal. A soft-start profile is implemented through the upstream PLC or temperature controller’s output ramp function.
Q: What cooling is required for continuous 150 A operation?
A: The UF3-0150F is fan-cooled. Ensure adequate airflow clearance (minimum 50 mm on all sides) within the control enclosure. Ambient temperature must not exceed 40°C for full rated current operation.
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