Blog
Contactors: Complete Guide, Types, Applications & Price in Bangladesh
⚙️ What is a Contactor?
A contactor is an electrically controlled switching device used to turn electrical circuits on and off. It is commonly used in industrial and commercial applications to control motors, lighting systems, and power circuits.
Unlike relays, contactors are designed to handle high current loads, making them essential for heavy-duty operations.
How Does a Contactor Work?
A contactor operates using an electromagnetic coil. When voltage is applied to the coil, it creates a magnetic field that pulls the contacts together, allowing current to flow.
When the power is removed, the contacts open, stopping the current flow.
🔧 Types of Contactors
There are several types of contactors based on application:
1. AC Contactors
Used for alternating current systems such as motors and HVAC units.
2. DC Contactors
Designed for direct current applications like battery systems and solar power.
3. Magnetic Contactors
The most common type, widely used in industrial automation.
4. Auxiliary Contactors
Used for control and signaling purposes.
🏭 Applications of Contactors
Contactors are widely used across multiple industries:
- Industrial automation systems
- Motor control panels
- HVAC systems
- Lighting control systems
- Power distribution units
📊 Contactor Price in Bangladesh
The contactor price in Bangladesh depends on several factors:
- Brand (Schneider, Siemens, ABB, etc.)
- Current rating (6A, 9A, 18A, etc.)
- Coil voltage (24V, 110V, 230V)
- Type and application
💡 Typically, prices vary from BDT 1,200 to BDT 8,000+ depending on specifications and brand.
🏢 Where to Buy Contactors in Bangladesh?
f you are looking for genuine and reliable products, Synapse Engineering & Supply is a trusted source for industrial components.
We provide:
✔ Genuine branded products
✔ Competitive pricing
✔ Technical consultation
✔ Fast delivery across Bangladesh
Contactors are a critical component in modern electrical systems. Whether you are working on industrial automation, HVAC, or power control, selecting the right contactor ensures safety, efficiency, and long-term performance.
Understanding the types, applications, and contactor price in Bangladesh will help you make a smarter purchasing decision.