VSP-2 Single Phase Preventor

The VSP-2 Single Phase Preventor is a reliable motor protection relay designed to safeguard three-phase motors against harmful power supply faults such as single phasing, reverse phasing, and voltage unbalance. In industrial and agricultural installations, motor failures are often caused by phase loss or uneven voltage conditions, resulting in overheating, reduced efficiency, and costly downtime. The VSP-2 continuously monitors the incoming three-phase supply and automatically disconnects the motor when an unsafe condition is detected, helping to prevent damage to motor windings and associated equipment. It features automatic reset functionality and is suitable for motors of virtually any HP or kW rating. Its compact panel-mounted design makes it easy to install in motor control centers, pump panels, and automation systems. The VSP-2 operates on a 415VAC three-phase supply and trips when voltage unbalance exceeds approximately 40V, ensuring reliable protection for critical equipment.

Key Features

• Protection against single phasing

• Reverse phase sequence detection

• Voltage unbalance protection

• Automatic reset operation

• 415VAC three-phase operation

• 1 NO output relay contact

• Compact panel mounting design

• Suitable for motors of any HP/kW rating

Applications

• Agricultural pump starters

• Industrial motor control panels

• Hoist and crane motor control systems

• Injection moulding machines

• Machine tools and manufacturing equipment

• Valve actuator motors

• HVAC and air-conditioning systems

Why Buy From Voltkart?

• Authorised Mean Well distributor in India

• GST invoice provided

• Pan India delivery in 5-7 days

• Bulk pricing available on WhatsApp

FAQs

Q1. What does a Single Phase Preventor do?
A Single Phase Preventor protects three-phase motors from damage caused by phase failure, reverse phasing, and voltage imbalance by disconnecting the motor when abnormal conditions are detected.

Q2. Is the VSP-2 suitable for agricultural pumps?
Yes. The VSP-2 is widely used for agricultural pump starters and irrigation systems to prevent motor burnout due to supply faults.

Q3. Does the VSP-2 reset automatically after the supply becomes normal?
Yes. The VSP-2 features an auto-reset function that restores operation once healthy supply conditions return.

Q4. What supply voltage is required for the VSP-2?
The relay is designed to operate on a 415VAC three-phase supply with a frequency of 50Hz.