3 phase control SSR Series Soft Starter 480V 500V 7.5kW 11A Three phase Input And Three phase Output

Overview of Phase Control Thyristor

A phase control thyristor, often referred to as a triac or SCR (Silicon Controlled Rectifier) in certain applications, is a semiconductor device used for controlling the amount of power delivered to a load by adjusting the phase angle at which the AC waveform is allowed to conduct. This method of control is known as phase angle control or simply phase control. Phase control thyristors are widely used in various applications that require precise regulation of electrical power, such as lighting dimmers, motor speed controls, temperature controllers, and more.

Features of Phase Control Thyristor

Phase Angle Control: Allows adjustment of the conduction point within each half-cycle of the AC waveform, enabling precise control over the average power delivered to the load.

High Efficiency: Operates with minimal losses when conducting, providing efficient power control.

Bidirectional Conductivity (Triacs): For AC applications, triacs can conduct current in both directions, making them suitable for full-wave control of AC loads.

Unidirectional Conductivity (SCRs): SCRs conduct current in one direction only and are typically used for half-wave control of AC or DC loads.

Gate Triggering: Conduction begins when a small current is applied to the gate terminal, allowing for easy control of the turn-on point.

Latching Current: Once triggered, the thyristor continues to conduct until the current through it falls below a certain level called the holding current.

Temperature Sensitivity: Performance can be affected by temperature changes, requiring thermal management considerations in design.

Voltage and Current Ratings: Available in a wide range of voltage and current ratings to suit different application needs.

Noise Generation: Can generate electromagnetic interference (EMI), necessitating proper filtering and shielding in sensitive applications.

Protection Mechanisms: Often include built-in protection against overvoltage and overcurrent conditions to safeguard the device and connected systems.

(3 phase control SSR Series Soft Starter 480V 500V 7.5kW 11A Three phase Input And Three phase Output)

Specification of 3 phase control SSR Series Soft Starter 480V 500V 7.5kW 11A Three phase Input And Three phase Output

The 3 Phase Control SSR Series Soft Starter is designed to provide smooth acceleration and deceleration of three-phase AC motors, reducing mechanical stress and electrical surges during start-up and shutdown. This solid-state soft starter is engineered for industrial applications requiring reliable motor control with minimal maintenance. It supports a three-phase input and output configuration, compatible with 480V to 500V AC systems, making it suitable for high-power motor-driven equipment.

Key specifications include a rated power of 7.5kW and a continuous current capacity of 11A, ensuring efficient operation under typical load conditions. The device operates within a voltage range of 380V to 500V AC, accommodating fluctuations in industrial power supplies. Its wide input frequency range of 45Hz to 65Hz ensures compatibility with global power standards. The soft starter utilizes solid-state relay (SSR) technology, eliminating mechanical contacts for enhanced durability and silent operation.

Protection features include overload detection, short-circuit protection, phase-loss monitoring, and thermal shutdown to safeguard both the motor and the soft starter from damage. An integrated bypass contactor reduces heat generation during steady-state operation, improving energy efficiency. The unit is designed for natural cooling or optional forced-air cooling, depending on ambient conditions, and operates reliably in temperatures ranging from -30°C to +60°C.

User-adjustable parameters such as start-up time, ramp-down time, and torque control allow customization for specific motor applications, including pumps, fans, compressors, and conveyor systems. The compact, IP20-rated enclosure ensures easy integration into control panels while providing basic dust and moisture resistance.

Installation requires a three-phase power supply connection, and the soft starter supports standard DIN rail mounting. Compliance with international standards such as CE and RoHS guarantees safety and environmental responsibility. Designed for minimal maintenance, the SSR Series Soft Starter offers a cost-effective solution for extending motor lifespan, reducing energy consumption, and enhancing operational reliability in demanding industrial environments.

(3 phase control SSR Series Soft Starter 480V 500V 7.5kW 11A Three phase Input And Three phase Output)

Applications of 3 phase control SSR Series Soft Starter 480V 500V 7.5kW 11A Three phase Input And Three phase Output

The 3 Phase Control SSR Series Soft Starter is a high-performance motor management solution designed to ensure smooth and efficient operation of three-phase induction motors in industrial and commercial settings. With an input and output voltage range of 480V to 500V, a power rating of 7.5kW, and a current capacity of 11A, this soft starter is engineered to reduce mechanical stress, minimize electrical surges, and extend the lifespan of motors and connected equipment.

Applications:
1. Industrial Machinery: Ideal for controlling the startup of conveyor belts, crushers, mixers, and compressors. By gradually ramping up motor speed, it prevents sudden torque spikes, reducing wear on gears, belts, and bearings.
2. HVAC Systems: Enhances the performance of pumps, fans, and blowers by eliminating inrush currents during compressor startups. This ensures stable operation, energy savings, and reduced maintenance in heating, ventilation, and air conditioning units.
3. Water and Wastewater Management: Protects pumps and motors in water treatment plants by mitigating water hammer effects during abrupt starts/stops, ensuring consistent flow and pressure control.
4. Agricultural Equipment: Safeguards irrigation pumps, grain augers, and processing machinery from voltage fluctuations and mechanical jolts in rural power networks.
5. Material Handling: Optimizes the operation of elevators, escalators, and cranes by delivering smooth acceleration and deceleration, improving safety and precision.

Key Benefits:
– Reduced Inrush Current: Limits startup current to 2-4 times the full-load current (vs. 6-8 times with direct-online starting), preventing circuit breaker trips and grid instability.
– Energy Efficiency: Minimizes power wastage during motor startup, aligning with sustainability goals.
– Solid-State Reliability: Utilizes SSR (solid-state relay) technology for silent, spark-free operation and long-term durability without mechanical contacts.
– Protection Features: Built-in safeguards against overloads, phase imbalance, and overheating ensure motor longevity.
– Easy Integration: Compact design and user-friendly settings simplify installation in control panels or standalone setups.

Suitable for industries like manufacturing, construction, and utilities, the 3 Phase SSR Soft Starter offers a cost-effective, low-maintenance alternative to traditional starters. Its robust construction and adaptive performance make it a critical component for optimizing motor-driven systems in demanding environments.

Company Profile

PDDN Photoelectron Technology Co., Ltd.(sales@pddn.com) is one of the leading enterprises in power electronics technology and power products, which is fully involved in developing solar inverters， transformers, voltage regulators, distribution cabinets, thyristors， modules， diodes， heaters, and other electronic devices or semiconductors. We will be committed to providing users with high-quality, efficient products and considerate service.

It accepts payment via Credit Card, T/T, West Union, and Paypal. PDDN will ship the goods to customers overseas through FedEx, DHL, by sea, or by air. If you want high-quality 3 phase control SSR Series Soft Starter 480V 500V 7.5kW 11A Three phase Input And Three phase Output, please send us inquiries; we will be here to help you.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment

By sea, by air, by express, as customers request.

Storage Conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

5 FAQs of 3 phase control SSR Series Soft Starter 480V 500V 7.5kW 11A Three phase Input And Three phase Output

What is the primary application of the 3-phase SSR Series Soft Starter?
The 3-phase SSR Series Soft Starter is designed to control and protect three-phase AC motors in industrial applications. It is ideal for managing the smooth startup and shutdown of motors in machinery such as pumps, fans, compressors, conveyors, and mixers. By reducing inrush current and mechanical stress during motor startup, it enhances equipment longevity and minimizes power grid disruptions, making it suitable for use in manufacturing, HVAC systems, and water treatment plants.

What are the key protection features of this soft starter?
This soft starter includes multiple protection mechanisms to safeguard motors and connected systems. These include overload protection (prevents damage from excessive current), phase imbalance protection (detects uneven phase voltages/currents), overcurrent protection (limits current surges), and thermal protection (monitors internal temperature to prevent overheating). These features ensure reliable operation under varying load conditions and reduce the risk of motor failure.

How does the soft start function work?
The soft start function gradually increases the voltage supplied to the motor during startup, allowing it to accelerate smoothly instead of experiencing a sudden jolt. This controlled ramp-up reduces inrush current by up to 500% of the motor’s rated current, minimizing mechanical wear on belts, gears, and bearings. The voltage ramp time is adjustable, enabling customization based on specific motor or application requirements.

Is this soft starter compatible with all three-phase motors?
Yes, the SSR Series Soft Starter is compatible with most three-phase induction motors rated up to 7.5kW (10 HP) with a current rating of 11A. It supports input and output voltages of 480V or 500V AC. Ensure the motor’s specifications align with these ratings before installation. Compatibility with other motor types (e.g., synchronous motors) should be verified with the manufacturer.

What are the installation requirements?
Installation requires a dry, well-ventilated environment with ambient temperatures between -30°C to 60°C. Ensure proper mounting on a DIN rail or panel, and connect the input/output terminals according to the wiring diagram. Adequate cooling is essential to prevent overheating. A qualified technician should perform the setup to configure parameters like ramp time and current limits. Regular maintenance, such as checking connections and cleaning dust, is recommended for optimal performance.

(3 phase control SSR Series Soft Starter 480V 500V 7.5kW 11A Three phase Input And Three phase Output)