Single Pole, Double Throw Relay

Your Leading Single Pole, Double Throw Relay Supplier

Zhejiang Qianji Relay Co.,Ltd. Established in 2000, located in Zhejiang, China. It is a modern professional enterprise that researches, develops, produces, and sells relays. The company specializes in producing over 50 series and 1000 specifications of Qianji products, including small relays, high-power relays, automatic relays, timers, solid-state relays, counters, temperature controllers, relay sockets, switches, etc. Our 24V high power relay includes 24 Volt DC power relay, 24V 120V relay, 24V100A high power relay, 24V200A high power relay, etc.

Single Pole, Double Throw 12V Relay
Single pole double throw 12V relay with 10a contact switching capability, ultra small size, and product quality certified by CE. And it has two packaging forms: plastic and non plastic.
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12V Single-Pole, Double-Throw Relay
This simple PCB relay board kit will allow you to turn on and off other electrical devices. Applying any 12 volt DC signal to the input of the board will energize the relay. With multiple contact...
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Standard Single-Pole, Double-Throw Relay
PCB 12V relay, available in various styles. The power relay used for printed circuit boards provides excellent performance in high-capacity load switching in power systems, as its material can...
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DC 12V Single-Pole, Double-Throw Relay
DC 12V single pole double throw relay, customized electromagnetic power relay, suitable for various large electrical equipment, safe and reliable, stable output.
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10A Single Pole Double Throw Relay
10A single pole double throw relays contribute to the high functionality and safety of equipment with various current capacities, contact structures, protection structures, and coil...
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Why Choose Us

Broad Market
There are dealers all over the country and our products are exported to the Middle East, South America, Southeast Asia, Taiwan, South Korea, Australia, Europe, the United States, and other countries and regions.

Quality Assurance
We have passed ISO9001 international quality system certification, and our products have passed non-toxic and environmentally friendly tests; some products have obtained American UL, German TUV certification, CE certification, and CQC certification.

Professional Technical Team
We have been engaged in foreign trade export production of relays for over 20 years and have cooperated with over 200 countries. Our professional salesperson provides you with reliable consulting services and procurement related matters.

OEM & ODM Available
We provide professional ODM customization services, which can be set to the pattern you want on the product. And provide free samples for your reference.

Specifications of Single Pole, Double Throw Relay

Contact Ratings
Contact Ratings	3Z/4Z
Contact Resistance	100MΩ (1A 6VDC)
Contact Material	Silver Alloy
Contact Capacity	10A/250V 28VDC
Specification
Insulation Resistance	500MΩ. 500VDC
Dieletric Strength	BCC 1500V 1 min
	BOC 1000V 1 min
	COC 1500V 1 min
Operate Time	25ms/20ms
Terminal Type	PCB, Socket

Types of Single Pole, Double Throw Relay

Standard Single-Pole, Double-Throw Relay

DC 12V Single-Pole, Double-Throw Relay
DC 12V single pole double throw relay, customized electromagnetic power relay, suitable for various large electrical equipment, safe and reliable, stable output, product quality meets international standards, and the shell is made of PC material, 2Z, 3Z, 4Z contact form.

10A Single Pole Double Throw Relay
10A single pole double throw relays contribute to the high functionality and safety of equipment with various current capacities, contact structures, protection structures, and coil specifications.

Single Pole, Double Throw 12V Relay
Single pole double throw 12V relay with 10a contact switching capability, ultra small size, and product quality certified by CE. This type of relay has three terminals: one common (C), one Normally Closed (NC), and one Normally Open (NO). And it has two packaging forms: plastic and non plastic.

Standard Single-Pole, Double-Throw Relay
A Standard Single-Pole, Double-Throw (SPDT) relay is an electromechanical switch with one input terminal and two output terminals, allowing it to switch between two circuits, either connecting the input to the "Normally Open" (NO) or "Normally Closed" (NC) terminal.

Features of Single Pole, Double Throw Relay

It is less cost.
It is reliable for most the applications.
It can work with high voltages & currents.
High switching currents let the device control relays, pumps & drive motors.

Usage of Single Pole, Double Throw Relay

For circuits that have an input and an output, isolate the circuit.

The circuit's input should be connected with the common terminal of the SPDT switch.

Linking its output on one end to a switch terminal should be done on your circuit.

When attaching another circuit you have to take the other output terminal of the switch before attaching it.

Continue with steps 3 and 4 for more circuits.

Test the circuits by operating the switch.

Be certain that the power and amperage in your electrical system match up with the switch that you would like to utilize.

Prevent short circuits by fastening each wire securely to its proper connection point.

Always be cautious when working with electricity.

Usage Requirements of SPDT Relay

A SPDT Relay (Single Pole Double Throw Relay) is a type of electrical switch that has two switching positions. In the first position, the switch connects the input terminal to the first output terminal. In the second position, the switch connects the input terminal to the second output terminal. The switch is operated by applying a current to the control input, which activates an electromagnet or other switching mechanism to change the position of the switch.

SPDT relays are commonly used in control systems, where they can be used to switch between two different circuits or to switch a single circuit on or off. For example, an SPDT relay could be used to switch between two different lighting circuits or to control a motor by switching the power supply on or off.

Packaging & Delivery

Packing:	Neutral white box and brown cardboard box; Customizable.
Payment:	EXW, FOB, CFR, CIF, DDU;
Payment:	T/T 30% as deposit, 70% paid before delivery.
Delivery time:	It takes 30 to 60 days after advance payment
Shipping:	By logistics; by automobile; by train; by shipping; by air.

Certificate

FAQ

Q: What are your packaging conditions?

A: Generally speaking, we use neutral boxes and cardboard boxes to package the goods. If you have a legally registered patent, we can package it. After receiving your authorization letter, place the product in your brand box.

Q: What is the mode of transportation?

A: It can be transported by sea, air, or express delivery (EMS, UPS, DHL, TNT, FEDEX, etc.). Please confirm with us before Place an order.

Q: Is the shipping cost cheap when importing to our country?

A: For small orders, express delivery will be the best. For bulk orders, sea freight is the best option, but it takes a lot of time.
For urgent orders, we suggest air freight to the airport, along with our shipping partner delivering them to your doorstep.

Q: If we have our own market position, can we receive support?

A: Please let us know your detailed thoughts on market demand, and we will discuss and provide useful suggestions, find the best solution for you.

Q: How to handle faults?

A: Firstly, our products are produced under strict quality control.

Q: What is the function of SPDT relay?

A: SPDT relays are commonly used in control systems, where they can be used to switch between two different circuits or to switch a single circuit on or off. For example, an SPDT relay could be used to switch between two different lighting circuits or to control a motor by switching the power supply on or off.

Q: Is SPDT relay a 3-way switch?

A: 28 Single-pole, double-throw (SPDT) A.K.A. The 3-way switch. This switch connects a single-line conductor to either of two possible switch legs. A common household example of this is in a three-way switch loop, which allows control of a single load (usually a light) from two different locations.

Q: How to prevent SPDT relay failure?

A: First, always maintain the SPDT relay within its specified temperature range to prevent overheating, which can cause wear and lead to failure. Ensure the relay is used within its rated voltage and current limits to avoid overloading. Regularly inspect and clean the contacts to prevent dirt and corrosion.

Q: Can a SPDT relay stay closed?

A: SPDT relays stay in continuous normally closed (NC) position without power supply. When power flows through the relay's coil the relay switches to a normally open (NO) position, remaining here while power is applied.

Q: What is the difference between SPST relay and DPDT relay?

A: SPST or single pole single throw (with no lamps) usually has 2 terminals. SPDT or single pole double throw (with no lamps) usually has 3 terminals. DPST or double pole single throw (with no lamps) usually has 4 terminals. DPDT or double pole double throw (with no lamps) usually has 6 terminals.

Q: Where is SPDT relay used?

A: They can work in any circuit(s) where one switch is needed to power different actions, which can be as simple as an on/off switch or as complex as rerouting circuits that shouldn't run simultaneously.

As one of the leading single pole, double throw relay manufacturers and suppliers in China, we warmly welcome you to buy high-grade single pole, double throw relay in stock here from our factory. All our products are with high quality and low price.

10A Single Pole Double Throw Relay, Single Pole Double Throw Relay, 12V Single Pole Double Throw Relay