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Single Pole Single Throw Relay
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Single Pole Single Throw Relay

Single Pole Single Throw Relay

Single Pole Single Throw (SPST) relays are similar to simple light switches. There is a switch that turns something on or off. They are often used to control simple circuits and devices, making them a fundamental and integral component of electrical systems.

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Description

Electromechanical relays come in various configurations based on their contact arrangements, including SPST, SPDT, DPST, and DPDT. An SPST relay is a straightforward on/off switch used to control circuits and devices. Imagine it like a basic light switch. Its function in electrical systems is vital, and its design is similar to a single switch that toggles something on or off. Its structure is shown in the following figure:

SPST RELAY

Let's take a closer look at these four relays, which are representative products (APAN3105, APAN3124, ALFG2PF121, he1an-p-dc12v-y5) with varying parameters and performances.

 

APAN3105

 

The maximum voltage for this product is 250VAC or 110VDC, which guarantees dependable relay switching. To further ensure environmental stability, this relay operates in the temperature range of -40°C to 90°C. With a response time of 10ms and a coil current as low as 22mA, these characteristics can improve reliability in a range of applications.

APAN3105

APAN3105

 

APAN3124

 

The Panasonic APAN3124 relay is yet another excellent product. This relay is meant to assist with applications that need a lot of switching power. The APAN 3124 coil was designed with a 5.24k ohm, 24VDC voltage to effectively handle larger loads. The product offers great adaptability and dependability in a range of scenarios, functioning well in a temperature range of -40°C to 90°C. Comparable to the prior model, but with a 10 ms response time and a 4.6 mA coil current. A great, dependable relay for applications needing strong, flexible switching is the APAN3124.

apan3124

APAN3124

 

ALFG2PF121

 

The ALFG2PF121 relay from Panasonic Electric Works has outstanding features for high-current applications. When operating at a coil voltage of 12VDC, it needs 8.4VDC to run at a low coil current of 117mA. AgSnO contact material and a robust 33A contact current rating also ensure dependable performance. Finally, it can be said that the relay operates between -40°C and 60°C, with a response time of 20 ms and a release time of 10 ms.

ALFG2PF121

ALFG2PF121

 

HE1AN-P-DC12V-Y5

 

This relay is widely used as a reliable device. Launched by Matsushita, this model is designed with durable and reliable functions. Carrying by a coil voltage of 12VDC and a current of 160mA, it operates on a coil voltage of 12VDC and a current of 160mA. AgNi contact material is appropriate for a variety of applications due to its up to 48A contact current rating. The flexible option offers a 30 ms response time and a 10 ms release time reliability, and it operates between -50°C and 55°C.

HE1AN-P-DC12V-Y5

HE1AN-P-DC12V-Y5

 

 

 

These relays have maintained their top spots in the market thanks to their dependability, usefulness, and large inventory.

 

To improve your projects and applications, our HK XRS TECHNOLOGY LIMITED is dedicated to offering creative and best-fit solutions, like ALFG2PF121 and HE1AN-P-DC12V-Y5 relays. Please contact us with any product-related questions. In no time at all, we will provide you with the most affordable quote.

 

 

WHY US?

Support component testing services-XRS Co

1. Experience and Authenticity: With more than 20 years of expertise in locating authentic imported electronic components, we guarantee high-quality goods that were acquired legally.

2. Customized Verification: Provide a tailored inspection service that enables clients to confirm specific items fulfil all requirements and expectations before shipment.

3. Global Shipping Assurance: Work together with trustworthy shipping partners to guarantee careful packing and dependable, safe international deliveries, highlighting our dedication to safe shipping procedures.

 

4. Safe Transactions: To ensure financial security, conduct safe transactions on reputable platforms such as HK INVENTORY. Enable safe exchanges or refunds via platform protocols in the event of problems.

 

 

FAQ

Q1: What's the deal with an SPST relay?

A:Alright, let's break it down. An SPST relay is like a solo artist. It's got one pole and one throw in its toolbox. Now, if you peek at its buddy, the SPDT relay, things get a bit more interesting. The SPDT relay also rocks one pole but flaunts two throws. And here's the plot twist: depending on where that pole starts, one throw is usually up for grabs as "normally open" while the other hangs tight in the "normally closed" zone. So, SPST relays keep it simple, while SPDT relays add a twist to the tale!

Q2: How can you use an SPST relay?

A: Using an SPST relay is like having a remote-controlled switch for heavy-duty tasks. Picture this: a small signal commands a big action. It goes like this:
Pin 30 is your go-to for handling high-amperage power. When a positive signal hits pin 86 and you ground pin 85, voilà – pin 30 links up with pin 87 within the relay. And when you remove power from pin 86 or unground pin 85, the connection between pin 87 and 30 takes a timeout.
Think of it as the relay's secret handshake! Most people see it as positive output/positive control. Super simple!

Q3:Is it possible to employ a DPDT as an SPST?

A: Sure thing.A DPDT is essentially two SPDT switches bundled with a shared toggle.

Q4: What is the difference between SPST and SPDT relays?

A: Alright, let's delve deeper into the relay world! Imagine a single pole single throw (SPST) relay - it's like a single player having a pole and a throw, as shown in the figure. Now, its friend is here, the Single Pole Double Throw (SPDT) relay. It has a pole, but it has two throws. Guess what? According to the starting position of the pole, a throw usually involves swinging the "normally open" title, while the partner holds the "normally closed" badge. So, in short, SPST keeps it simple, while SPDT brings some switch magic to the desktop!

Q5: Is there a post-sale support system in place at XRS?

A:In fact, if you encounter any problems after receiving the order, we will help you solve them in every possible way. In the event of product quality concerns or damage during transportation, we are willing to consider and are always ready to provide convenience for returns or exchanges to solve the problem at hand.

Q6: Does XRS offer global delivery for its products?

A: Sure, we are pleased to confirm that all our products are available for worldwide shipping. You have the flexibility to choose renowned courier services like DHL, UPS, FedEx, TNT, and others for shipping. Once your order is processed, our sales team will promptly send you an email containing the shipment status and tracking number.
Please be aware that tracking information might take up to 24 hours to be updated by the courier. Typically, the delivery process takes around 3-5 days. Additionally, for orders that exceed a certain quantity or amount, we also provide complimentary shipping services.

Q7:Could you outline your company's return/replacement process briefly?

A: PProducts undergo Pre-Shipment Inspection (PSI) before shipment. If delivered products have issues like quantity shortage, incorrect delivery, or visible defects, they can be replaced/returned within 90 days, provided defects are reported and models are unused in original condition.
Process: (1) Notify within 90 days, (2) Get Return Merchandise Authorization.

 

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