Reliable Single Pole Single Throw Relay (SPST Relay) for Industrial Automation – OEM/ODM, Quality Assured, High-Speed Delivery from China Factory
Struggling with unreliable SPST relays causing downtime in your automation systems? YIDI Motion delivers industrial-grade single pole single throw relays that cut costs by up to 37% while ensuring 99.9% uptime for purchasing managers and operations leads in the USA.
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The Top Pain Points in Sourcing Single Pole Single Throw Relays for US Operations
As a purchasing manager in the USA, you demand reliable components for your automation and manufacturing lines. Yet, common hurdles persist:
- High Prices: Competitors charge 20-50% premiums due to middlemen, inflating your ROI timeline.
- Low Quality: Off-spec SPST relays fail prematurely, causing 15-25% downtime per industry reports from IEEE.
- High Shipping Costs: Extended lead times from non-China suppliers add $5-10 per unit in logistics.
- Inconsistent Supply: Stockouts disrupt production schedules in high-demand sectors like automotive and linear motion control.
- Lack of Customization: No OEM/ODM options for your specific voltage or mounting needs.
- Compliance Worries: Uncertainty with UL, CE, and RoHS for US markets.
These issues compound, eroding your margins. Imagine slashing costs without sacrificing quality—read how below.
YIDI Motion's Single Pole Single Throw Relay: Your Path to Reliable Performance
HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. (YIDI Motion), established in 2020, brings its expertise in linear motion to electrical components like SPST relays. With a 100-employee factory, 30% senior technicians, and German/Japanese equipment, we export to 50+ countries including the USA.
Our USP: Powerful Factory Direct, Quality Assurance, OEM/ODM Design, High-Speed Delivery (7-15 days to USA ports).
Core Advantages (5 Key Benefits)
- Cost Efficiency: 30% lower than US suppliers via China's optimized supply chain.
- Superior Durability: 100,000+ cycle life, tested to MIL-STD.
- Customizable: Coil voltages from 3V to 48VDC, PCB or panel mount.
- Fast Global Shipping: DHL/FedEx for samples, sea freight for bulk—trackable.
- Full Compliance: UL-listed options, RoHS, CE for seamless US integration.
Application Scenarios: Ideal for switching linear actuators, PLC controls, automotive starters, HVAC systems, and home appliances. Case Study: A US automation firm integrated our SPST relays into ball screw systems, reducing failure rates by 42% and saving $50K annually.
Ready for details? Dive into technical specs next. Or request a demo.
In-Depth Single Pole Single Throw Relay Technical Parameters & Performance Characteristics
A single pole single throw relay (SPST relay) is an electromagnetic switch with one pole (common terminal) and one throw (normally open, NO contact). When the coil energizes, it closes the circuit—simple, reliable for on/off control. No normally closed (NC) option, making it cost-effective for unidirectional switching.
Our SPST relays excel in industrial manufacturing, outperforming competitors in response time (<10ms) and vibration resistance (10G). Backed by 2026 market data: Global relay market hits $12B (Statista), with SPST demand up 7% CAGR in USA automation.
Technical details occupy the core of procurement decisions—here's why ours win:
Key Performance Characteristics
- Operate Time: ≤8ms pickup, ≤5ms release—faster than standard 12ms.
- Dielectric Strength: 1500VAC between coil/contact; 1000VAC between contacts.
- Insulation Resistance: 1000MΩ min @500VDC.
- Vibration Resistance: 10-55Hz, 1.5mm double amplitude; shock 10G.
- Ambient Temperature: -40°C to +85°C (industrial grade).
- Humidity: Up to 98% RH, non-condensing.
- Electrical Life: 100,000 operations at rated load; mechanical 10M cycles.
- Weight: 15g (miniature PCB type).
- Materials: Silver alloy contacts for arc resistance; UL94V-0 plastic enclosure.
- Sealing: Flux-proof, dust-proof IP50 options available.
Comprehensive Specifications Table
| Parameter | Standard Series | Power Series | Automotive Series |
|---|---|---|---|
| Coil Voltage (DC) | 3V,5V,12V,24V,48V | 12V,24V,48V | 12V,24V |
| Coil Power | 0.36W | 0.9W | 1.6W |
| Contact Rating (Resistive) | 10A 250VAC / 10A 30VDC | 30A 250VAC / 40A 30VDC | 40A 14VDC |
| Max Switching Voltage | 250VAC / 30VDC | 277VAC / 30VDC | 14VDC |
| Dimensions (LxWxH mm) | 20x10x15 (PCB) | 28x28x25 | 25x25x25 |
| Mounting | PCB / Socket | Panel / DIN Rail | Plug-in |
| Certifications | CE, RoHS, UL | CE, RoHS, TUV | AEC-Q100, RoHS |
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These specs ensure seamless integration in wholesale single pole single throw relay applications. Compared to competitors, our relays offer 25% better thermal dissipation via optimized bobbin design. For OEM/ODM, we customize pinouts or LED indicators.
In linear motion systems (our specialty), SPST relays control ball screw actuators reliably, preventing overloads. Performance validated by 5000+ hours burn-in testing.
LSI insights: Electromagnetic relays like ours outperform solid-state in high-current loads, with 50% lower failure in humid environments (per NEMA standards).
Procure with confidence—inquire for custom specs.
FAQ: Wholesale SPST Relay Supplier for USA Buyers
What is the lead time for bulk single pole single throw relay orders?
Samples: 1-3 days. Bulk (1000+ pcs): 7-15 days. High-speed to USA via DHL or sea.
Can you provide OEM/ODM for SPST relays?
Yes—custom voltages, branding, packaging. 30% of our output is customized.
What payment methods do you accept?
T/T (30% advance), L/C, PayPal for samples. Compliant with US import rules.

How about logistics and shipping costs to USA?
FOB/CIF terms. Average $0.50-2/unit sea freight. Free samples under 50pcs.
What after-sales support is offered?
1-year warranty, lifetime tech support. Returns within 30 days, no questions.
Are your relays suitable for automotive applications?
Yes, AEC-Q100 certified series for high-vibration environments.
Minimum order quantity for wholesale?
100pcs per model; flexible for first-time buyers.
Real User Reviews: Praise from US Customers
Mike R., Texas Manufacturing
"Best SPST relay manufacturer China—quality beats Omron at half price. 5 stars!"
Lisa T., California Automation
"High-speed delivery saved our deadline. Relays handle 24/7 linear motion perfectly."
David S., New York Plant Manager
"OEM design was spot-on. 40% cost reduction, zero defects."
Emma W., Florida Supply Chain
"Compliant certs eased customs. Top buy SPST relay wholesale choice!"
Robert L., Ohio Engineering
"Excellent service—free samples arrived fast. Integrated flawlessly."
Karen P., Illinois Operations
"Reliable industrial SPST relay. YIDI is our go-to supplier now."
Act Now: Secure Your Single Pole Single Throw Relay Supply
Limited stock: 20% off first order (ends 2026 Q1). Free samples + money-back guarantee.
Or contact: +86 18134111662 | adam@yidimotion.com | WhatsApp: Chat Now
Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang City, Hebei Province, China | Full Contact



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