Description

QVR/S-TB 15A Switched Phase Angle Regulator for 230V Quartz Lamps | 5Way Terminal Block

The QVR/S-TB 15A Switched Regulator is a compact and robust 230V phase-angle voltage regulator designed for precise control of quartz lamps, heating elements, and selected inductive loads. Featuring a built-in switched potentiometer and terminal block connections, it provides adjustable output control for commercial kitchen and industrial heating applications.

Designed for demanding environments, the QVR/S-TB can provide variable output from 0–98%, helping users regulate heat and power accurately. Its large TRIAC provides high inrush-current handling, while the compact enclosure makes it suitable for panel and equipment integration.

⚠️  NOTE: This regulator is a high-current solid-state device. Efficient heat transfer is mandatory for reliable operation. For proper installation, a thermal grease/paste MUST be applied evenly to the back of the regulator before mounting to ensure maximum thermal coupling. (Warranty void if Heatsink paste is not used)   https://united-automation.com/product/tm500-thermal-grease-syringe/

Key Features:

• Variable Output: Enjoy fully adjustable voltage outputs ranging from 0-98% Output, providing precise control over power distribution.
• Triac for Inrush Protection: Equipped with a large triac, these regulators can handle high inrush currents, ensuring safety and reliability in industrial settings.
• Robust and Compact Design: Built to last, these regulators feature a robust and compact enclosure, ideal for demanding environments.
• Optional Extras: Adhesive-backed silver label and hairline knob are optional extras for convenient front panel mounting, enhancing usability.

Technical Specifications

• Product: QVR/S-TB Switched Regulator
• Regulator Type: Phase-angle switched voltage regulator
• Maximum RMS On-State Current: 15A
• Minimum Operating Current: 200mA
• TRIAC Limiting RMS On-State Current: 25A
• Peak One-Cycle Surge @ 20ms: 250A
• I²t for Fusing: 112A²s
• Isolation Voltage: 2500V RMS
• Maximum Recommended Unit Temperature: 70°C
• Maximum Cable Temperature: 105°C
• Maximum Recommended Load @ 20°C Ambient: 10A without additional heatsink
• Maximum Recommended Load @ 40°C Ambient: 5A without additional heatsink
• Mains Supply: 230V AC ±10%
• Mains Frequency: 50/60Hz
• Output Range: 0–98%
• Connection Type: Terminal Block
• Control Type: Switched Potentiometer
• Heatsink Requirement: Heatsink paste must be used during installation
• QVR/S-TB: Switched Potentiometer with Terminal Block

Operation

The QVR/S-TB uses phase-angle control to regulate the amount of AC power delivered to the connected load. Adjusting the front-mounted potentiometer changes the TRIAC conduction angle, allowing the output power to be increased or decreased according to the application’s requirements.

This makes the regulator particularly suitable for applications where precise adjustment of heating intensity or lamp output is required.

The built-in TRIAC is designed to handle significant inrush currents, providing additional protection when controlling loads such as heating elements and quartz lamps.

Applications

The QVR/S-TB 15A Switched Regulator is ideal for commercial ovens, bain marie systems, hot food cupboards, heated gantries, quartz lamps, infrared heat lamps, heating elements, moulders, dryers, food warming equipment, selected transformers, some motor and inductive loads, commercial kitchen equipment, industrial heating systems

Benefits

• Precise adjustment of heating and lamp output
• Wide 0–98% variable output range
• High inrush-current capability
• Compact design for equipment integration
• Robust construction for commercial environments
• Suitable for a wide range of heating applications
• Simple switched potentiometer operation
• High electrical isolation for improved system protection
• Available in multiple regulator configurations

Safety & Installation

• Installation should only be carried out by suitably qualified personnel.
• Always isolate the mains supply before installation or maintenance.
• Heatsink paste must be applied during installation.
• Failure to use the required heatsink paste may result in overheating and will void the product warranty.
• Ensure the controller is operated within the specified temperature limits.
• Do not exceed the recommended load current for the ambient operating temperature.
• Provide appropriate external protection and fusing in accordance with the installation requirements.
• Ensure adequate ventilation around the regulator and heatsink.