


| Brand | JERWICKELI |
|---|---|
| Manufacturer Part Number | FLS821 |
| Current Rating | 40 AMPS |
| Mounting Type | PLUG IN MOUNT |
| Product Dimensions | 0.98 X 0.59 X 1.77 INCHES; 1.13 OUNCES |
| Country Of Origin | CHINA |
| Connector Type | QUICK CONNECT |
| Contact Type | NORMALLY OPEN |
| Contact Material | SILVER ALLOY |
| UPC | 445033564588 |
The Jerwickeli FLS821 is a versatile 12VDC 40A Relay that offers reliable switching performance for various applications. This heavy-duty relay comes with four pins, including N/O (Normally Open) for the normally open contacts, N/C (Normally Closed) for the normally closed contacts, IN1 (Input 1) for the coil, and GND (Ground) for the ground connection.
The FLS821 is built with a robust and durable design, making it an ideal choice for automotive, industrial, and other demanding environments. Its 12VDC operation voltage range provides compatibility with a wide array of power systems, ensuring versatility. The relay boasts a considerable current carrying capacity of 40A at a contact rating of 30A, ensuring substantial power transfer and ensuring the reliable operation of the connected devices.
The contacts in the Jerwickeli FLS821 are of high quality and are designed to ensure a clean and reliable switching action. Although rated for a maximum contact bounce of 2mm, these contacts typically provide much smoother switching action, reducing the likelihood of arcing or sparking, which could potentially damage connected equipment. Additionally, this relay is engineered with a low contact resistance, ensuring efficient power transfer and reduced power loss.
Safety features integrated into the Jerwickeli FLS821 include an over-current protection system and a snap-in latching mechanism that enables quick and easy mounting on a DIN rail. The polycarbonate housing helps to shield the internal components, ensuring protection from dust and water while providing exposure to the terminal blocks for easy wiring. The high-quality terminals are self-cleaning and resistant to corrosion, ensuring long-lasting performance even in harsh environments.
With its ability to handle high currents, robust design, and reliable switching performance, the Jerwickeli FLS821 is an excellent addition to any system or application that requires dependable switching functionality, making it not just a reliable choice, but a cost-effective one as well.
The Jerwickeli FLS821 relay is a 12VDC, 40A, 4-pin solid-state relay. Here are some potential pros and cons of buying this relay: Pros:1. High Current Capacity: The FLS821 can handle up to 40 amps of current, making it suitable for heavy-duty applications.
2. Solid-State Design: This type of relay utilizes transistors instead of moving parts, resulting in a longer lifespan and faster response time.
3. Compact Size: The FLS821 has a small form factor, allowing it to be easily mounted in tight spaces.
4. Normally Open (NO) Contact: This relay features normally open contacts, which remain open until an electric signal is applied to the control input.
Cons:1. Limited Input Voltage: The FLS821 can only operate on 12VDC. Using a higher voltage may cause damage to the relay.
2. No Diode: This relay does not include a flyback diode, so it is essential to add one in your circuit to protect against voltage spikes.
3. Lack of Indication LED: The relay does not have an built-in LED to indicate relay status. You may need to add external LED or an indicator if desired.
Conclusion:The Jerwickeli FLS821 relay is an excellent choice when looking for a high-current, solid-state option for your electrical projects. Its compact size, fast response time, and long lifespan adds to its appealing features. However, consider the limitations, such as the 12VDC input voltage and the need for external diode and LEDs, before making your final decision.
If the Jerwickeli FLS821 aligns with your requirements, then it is a recommendable option. Keep in mind the necessary modifications for the voltage spikes and the indicator. However, if the lack of built-in protection diodes and indicators is a major concern, you may want to explore other alternatives from the market with similar specifications but with these features built-in.
Heavy duty automotive relay FLS821 12vdc 40a 4 pins:: item model number FLS821, current rating 40 amps, mounting type plug in mount, product dimensions 0.98 x 0.59 1.77 inches; 1.13 ounces, country of origin china, connector quick connect, contact normally open, material silver alloy, manufacturer Jerwickeli. This versatility makes it a valuable component for various vehicles and ensures efficient reliable operation. Enclosed design: this fan relay features a sealed and enclosed design, protecting it from dust, moisture, other environmental factors, ensuring long-lasting durability. With its robust construction and sealed design, this relay can withstand harsh conditions, including dust, moisture, temperature variations, ensuring durability long-term operation.
Its sturdy construction ensures reliable operation and contributes to the longevity of relay. Heavy duty performance: the FLS821 automotive relay is designed for heavy-duty applications, providing reliable and efficient performance in demanding conditions. By saving time and effort during installation, this relay enhances convenience for automotive technicians enthusiasts. Abs construction: crafted with high-quality material, this relay offers excellent resistance to wear, impact, and heat, making it a reliable replacement for heavy-duty switching fan relays.
This simplifies the integration process, allowing for quick and hassle-free installation in automotive electrical systems. Versatile compatibility: with a 12vdc voltage rating and 40a current capacity, the FLS821 relay is compatible with various automotive systems, including cooling fans, heaters, other heavy-duty electrical applications. It can be used in cooling fan circuits, heater controls, and other heavy-duty electrical applications. Easy installation: the FLS821 relay comes with a 4-pin configuration, making it easy to install and integrate into automotive electrical systems, saving time effort.
