Why Solid State Relays (SSR) are a Game Changer for Industrial Switching?

In industrial automation, keeping machines running smoothly and efficiently is key. Contactors, which were once commonly used for switching purposes, have their downsides. They create unwanted noise and their mechanical parts can get damaged over time, leading to inaccuracies, breakdowns, and expensive repairs. This can affect the production efficiency.

To fix this, Solid State Relay offers semiconductor-based instant switching solution that eliminates noise and provides comparatively better performance and endurance. These relays turn out to be economical solutions.

Why choose Solid State Relays over conventional Relays??

1. Longer Lifespan: Unlike conventional relays, SSRs have no physical contact to wear out. With no mechanical components, SSRs require no maintenance and are less prone to failure.?

2. Instant Switching: This makes them ideal for applications that require rapid switching, such as high-frequency power supplies and motor control.????

3. Higher Reliability: SSRs are made up of semiconductors, which helps eliminate the contact bounce that occurs in conventional relays, improving reliability.

4. Low Power Consumption: SSRs typically require less input power to control the same load compared to conventional relays.

5. Noise-free Switching: SSRs produce no audible noise during switching, making them suitable for noise-sensitive environments.

How Do SSRs Work??

SSRs work by using a voltage input signal to gate or control high-voltage loads. When a control output signal, from a PLC or PID temperature controller, is given, the SSR switches on, allowing current to flow through the output. Once the control signal is removed, the SSR will cut off the load from the supply.

SSR Switching Mode:

• Zero-crossing SSR switches the load at the zero-voltage point of the AC signal. Ideal for sensitive applications. By minimizing disturbances, they extend the life of both the load and the relay.?

Selec Controls’ Range of SSRs?

Selec offers SSRs in various current ratings—25A, 40A, 90A, and 125A providing flexibility for different load requirements. With zero cross switching it is suitable for sensitive loads. TRIAC/ SCR is used for instant switching. Available in compact sizes, saving valuable space in control panels.?

1. DC Input, AC Output SSR?

These SSRs receive a DC input signal (4V to 32V DC) and control an AC output (24V to 480V AC). They are perfect for applications such as heat tracing.?

2. AC Input, AC Output SSR?

This range is ideal for systems that require both the input and output to be AC, offering flexibility in applications like lighting and motor control. These SSRs receive an AC input signal (90V to 280V AC) and control an AC output (24V to 480V AC).?

Applications of SSRs:?

SSRs are widely used in a variety of industries and applications, including:?

• Heating Systems (ovens, heat tracing, heaters)?

• Valve Control?

• Extruder Control Panel
• Injection Moulding
• Boilers and Furnaces
• Food Processing
• Pouch Packaging
• CNC Machines
• Pharmaceuticals
• Ceramic / Cement Manufacturing

• Industrial Automation?

SSRs are especially suited for systems requiring high load switching (25A to 125A), making them ideal for heavy-duty applications.?

Why Choose Selec SSRs??

Selec SSRs control specified load current at an exceptional 55°C operating temperature compared to competitors. Selec SSRs are designed for high performance, reliability, and longer life. With noise-free operation, instant response, and compact designs.

Switch to Selec Solid State Relays today to boost your system's endurance, reduce maintenance, and enhance operational efficiency. Explore Selec’s full range of SSRs and find the ideal product for your specific application needs.?

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Company News:

Selec Controls Shines at ElectriExpo 2024

Selec Controls successfully participated in ElectriExpo 2024, hosted by SETA at the HITEX Exhibition Center in Hyderabad from August 29th to 31st.

Selec showcased a comprehensive range of innovative products that captivated customers across industries. Highlights included:

• Multifunction Meters: Visitors appreciated the high-end meters offering an accuracy class of 0.2S and 0.5S precision which can help them achieve precise energy measurement and system monitoring along with other advanced features.
• Protection Relays: Attendees found these relays ideal for protecting critical equipment and electrical systems, offering reliable fault detection to ensure uninterrupted operation and a healthy system.
• MiBRX Micro Modular PLC Solution: Visitors experienced the powerful technology product MiBRX, Micro-Modular PLC, a cutting-edge technology that delivers an exceptional cost-to-performance ratio.
• BIS Certified Solar On-Grid Inverter: Visitors were amazed by the inverter’s compliance with Indian standards and class-1 manufacturer, enabling efficient solar energy use and helping lower energy costs sustainably.
• Advanced Static VAr Generator (ASVG): Visitors expressed their admiration for the Advanced Static VAr Generator (ASVG), particularly its ability to stabilize power factor and significantly reduce energy penalties. They recognized its importance in managing fluctuating loads, highlighting the ASVG as an essential solution for maintaining energy efficiency and system stability.

Customers expressed keen interest in Selec’s cutting-edge solutions, reinforcing its reputation as a leader in industrial electrical, solar, and automation products.

Selec Controls Pvt. Ltd. is one of India’s leading manufacturers in Electrical Measurement & Protection, Power Quality, Solar, Industrial Automation, and Process Control having a market reach in over 75+ countries worldwide with three subsidiaries Selec GmbH Germany, Selec Controls USA, and Selec Australia.

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