Description

VAC1/S-15E 15A 1.6kW 110V Single Phase Switched Fan Controller

The VAC1/S-15E Single Phase Switched Fan Controller is a robust and compact variable phase-angle regulator designed for precise control of single-phase mains-driven inductive loads. Rated at 15A for 110V applications, it provides infinitely variable voltage control from 0–98% output, allowing accurate adjustment of motor and fan speed.

With an integrated ON/OFF switch, minimum set-speed adjustment, large TRIAC for high inrush current handling, and an R-C snubber network for inductive loads, the VAC1/S-15E is a reliable solution for HVAC, ventilation, and industrial fan-control applications. The enclosed design provides convenient installation, while the rear minimum-speed adjuster helps prevent motors from operating below their recommended speed.

Important:For 15A operation, the controller must be mounted to a suitable heatsink or panel rated at2°C/W or better.Heatsink paste is essentialbetween the controller and heatsink to ensure effective thermal bonding.

The package includes the controller, control knob, label, and printed datasheet.

Key Features

• 15A single-phase fan controller for 110V applications
• 1.6kW rated application at 110V
• Variable 0–98% output for precise speed control
• Integrated ON/OFF switch
• Minimum set-speed adjustment
• Large TRIAC for high inrush current protection
• Integral R-C snubber network for inductive loads
• Rugged and compact enclosed design
• Single-hole fixing for easy installation
• Suitable for mains-driven induction motors, fans and pumps
• Adhesive-backed silver label and hairline knob supplied
• Designed for reliable operation in industrial environments

Technical Specifications

• Product: VAC1/S-15E
• Controller Type: Single-phase variable phase-angle fan controller
• Switching: Integrated ON/OFF switch
• Maximum RMS On-State Current: 15A
• Minimum Operating Current: 200mA
• Triac Limiting RMS On-State Current: 25A
• Peak One-Cycle Surge @ 10ms: 250A
• Peak One-Cycle Surge – HS Model @ 10ms: 300A
• I²t for Fusing: 112 A²s
• Output Range: 0–98% variable
• Mains Supply: 110V or 230V AC ±10%
• Operating Frequency: 50/60Hz
• 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
• Minimum Speed Adjustment: Rear-access cermet adjustment
• Cooling Requirement: Mount to a suitable heatsink/panel rated at 2°C/W or better for 15A operation

Operation

The VAC1/S-15E regulates the voltage supplied to single-phase inductive loads using variable phase-angle control. The adjustable 0–98% output enables smooth control of fan and motor speed according to application requirements.

The integrated ON/OFF switch provides convenient local control, while the rear minimum-speed adjuster allows the installer to establish a suitable minimum operating voltage. This helps prevent connected motors from running too slowly, which can improve operational reliability.

A large TRIAC provides additional capacity for high starting and inrush currents, while the integrated R-C snubber network helps improve performance when controlling inductive loads.

Applications

The VAC1/S-15E is suitable for single-phase induction motors, ventilation fans, HVAC systems, industrial fans, extraction systems, pumps, air-handling equipment, building ventilation, heating and ventilation applications and other suitable mains-driven inductive loads.

Benefits

• Precise variable fan and motor speed control
• Convenient integrated ON/OFF switching
• Adjustable minimum motor speed
• Handles demanding motor inrush currents
• Compact enclosed construction
• Suitable for 110V and 230V systems
• Improved inductive-load performance through R-C snubber
• Easy single-hole installation
• Suitable for HVAC and industrial applications
• Reliable phase-angle power regulation

Safety & Installation

• Installation should only be carried out by suitably qualified personnel.
• Isolate the mains supply before installation, adjustment or maintenance.
• Heatsink paste is essential between the controller and heatsink/panel to ensure effective thermal transfer.
• For 15A operation, the unit must be mounted to a suitable heatsink/panel rated at 2°C/W or better.
• Ensure adequate ventilation around the controller.
• The minimum-speed adjustment is accessed through the rear cover hole beneath the adhesive label.
• Use a small terminal screwdriver to adjust the rear cermet screw.
• Select the correct supply voltage before commissioning.

Quick VAC Controller Selection Guide

 Which VAC fan controller is right for my application?

The easiest way to select a VAC controller is to consider three things: supply voltage, load requirements and whether you need an integrated ON/OFF switch.

• 110V application? Choose a VAC1 model.
• 230V application? Choose a VAC2 model.
• Need an integrated ON/OFF switch? Choose an /S model.
• Need variable speed control only? Choose the standard model.

Important: Always verify the motor’s compatibility with phase-angle speed control and check the actual running current, starting characteristics, ambient temperature and thermal requirements before selecting a controller.