Skip to main content
  • No Customs Hassles
  • Guaranteed Authenticity
  • 7-Day Free Returns
  • Direct from USA
  • Factory-Direct from China
  • Fast Delivery โ€” FedEx & DHL
  • 100% Genuine Products
  • Duties Included in Price
Poshace
YWBL-WH YWBL-WH 30A 4 Channel Relay Module Expansion Board with Optocoupler for DSP AVR ARM 5VDC High Performance Control Solution
Tap to zoom
1 / 8
YWBL-WH

YWBL-WH 30A 4 Channel Relay Module Expansion Board with Optocoupler for DSP AVR ARM 5VDC High Performance Control Solution

โ˜…โ˜…โ˜…โ˜…4.4(10 ratings on Amazon)
Share:WhatsAppTelegramFacebookXPinterestEmail
โ‚น3,981.39

All taxes included | Tracking provided

โ— IN STOCK

Check delivery date & COD availability for your area

Qty:

Secured Transaction โ€” 256-bit SSL Encrypted Payment

100% Authentic
Free Shipping
7-Day Returns
GST Invoice

We'll notify you the moment the price drops. No spam โ€” one email, one alert.

US Store

Authentic source

Ships to India

Free shipping

12-21 Days

With tracking

Ships direct from US suppliers for authenticity and better pricing.

Payment methods

UPIRuPayCODNetBank

US โ†’ India delivery

Tracking provided
๐Ÿ‡บ๐Ÿ‡ธ๐Ÿ‡ฎ๐Ÿ‡ณ

Dispatch

2โ€“4 days

Transit

8โ€“14 days

Delivery

12โ€“21 days

Est. delivery: Tue, 5 May โ€“ Thu, 14 May

Our Partners:FedExDHL

Typical USโ†’India timelines. Customs or weather can add variance. We notify proactively.

Free International Shipping

International delivery included.

Free International Returns

International orders supported.

Lowest Price Guaranteed

Best price across all channels.

International COD

Available on select orders.

Direct sourcing: Lower final price.

Easy returns: Hassle-free.

1 Year warranty: On international products.

Customs handling: We assist where applicable.

Tracking: End to end visibility.

GST invoices: Available.

Priority support: Faster website resolution.

Price advantage: Better than most marketplaces.

โœ“

Website first, Amazon second

Best price and support on the website. Amazon is available for convenience and reviews.

Found it cheaper elsewhere?

If you find this product at a lower price anywhere in India, tell us. We'll review it before selling.

About this item

Key details

Brand
YWBL-WH
  • High Output Capacity: With an output capability of up to AC 250V/30A and under DC 30V/30A, this relay module easily controls large-current appliances and equipment. It handles heavy loads reliably, making it suitable for industrial machines, smart home devices, or any setup needing robust current controlย—no need for extra .
  • Clear Interface Layout: This relay module has a straightforward interface: DC+ (external DC power positive), DC- (power negative), IN1-IN4 (input terminals), NO (relay normally open), COM (common relay), and NC (relay normally closed). Before activation, NO is suspended (connects to COM when activated) and NC is shorted to COMย—making wiring intuitive for MCU, PLC, or smart home control setups.
  • Stable Barrier Terminals: Equipped with 9.5mm black barrier terminals (standard 30A), this relay module ensures stable, reliable connections. The high-quality terminals resist loosening and handle high currents without overheating, keeping your MCU, PLC, or industrial control circuits secure. They simplify wiring and maintain performance even in frequent-use scenarios.
  • Wide Application Range: This relay module supports all MCU control, industrial field use, PLC control, and smart home control. It adapts to diverse setupsย—from home automation (like smart lights) to industrial machinery or PLC-driven systems. Its versatility makes it a go-to choice for both professional and residential electrical control needs.
  • Anti-Interference Design: Using top-quality miniature optocouplers, this relay module has strong anti-interference ability and The optocouplers prevent external electrical noise from disrupting signals, ensuring consistent operation for MCU, PLC, or industrial control. It maintains reliability even in noisy electrical environments, reducing downtime.

Pros

  • โ€ข [PRO 1]
  • โ€ข [PRO 2]
  • โ€ข [PRO 3]

Cons

  • โ€ข [CON 1]
  • โ€ข [CON 2]

Common Questions

Is this product genuine and authentic?
Yes. All products on Poshace are 100% authentic, sourced directly from authorized US suppliers. Every order comes with a GST invoice as proof of authenticity.
How long does delivery take to India?
Estimated delivery is 12โ€“21 business days from the date of dispatch. We ship via FedEx and DHL with end-to-end tracking provided on every order.
Are customs duties and taxes included in the price?
Yes, completely. The price you see is the price you pay โ€” no hidden customs fees, no surprise charges at delivery.
What is the return policy?
We offer a 7-day free return policy. If you're not satisfied, return the product within 7 days of delivery for a full refund. The item must be unused and in original packaging.

What customers say

โ˜…โ˜…โ˜…โ˜…โ˜…

โ€œBought on PoshAce to save vs Amazon. Tracking was clear the whole way.โ€

โ€” Ria, Bengaluru

Verified Buyer

โ˜…โ˜…โ˜…โ˜…โ˜…

โ€œSaved โ‚น2,400 vs Amazon India on the same model. Legit product, sealed box.โ€

โ€” Rohan, Chennai

Verified Buyer

โ˜…โ˜…โ˜…โ˜…โ˜…

โ€œFirst time buying internationally. Customs and duties were included. No surprises.โ€

โ€” Ananya, Kolkata

Verified Buyer

โ˜…โ˜…โ˜…โ˜…โ˜…

โ€œCompared 3 sites. PoshAce was โ‚น1,800 cheaper. Shipped and tracked as promised.โ€

โ€” Aditya, Lucknow

Verified Buyer

โ˜…โ˜…โ˜…โ˜…โ˜…

โ€œGST invoice was ready the same day. Perfect for business expense claims.โ€

โ€” Nisha, Bhopal

Verified Buyer

โ˜…โ˜…โ˜…โ˜…โ˜…

โ€œI've ordered 4 times now. Consistent quality and pricing every single time.โ€

โ€” Swati, Kochi

Verified Buyer

Quick Overview

  • โœ“Adopt 95mm black barrier terminal standard 30A terminal stable and reliable quality ApplicationSupports all MCU control The industrial field PLC control Smart home control
  • โœ“Widely used for all MCU control industrial sector PLC control smart home control
  • โœ“The use of the industrys top quality miniature optocoupler antiinterference ability stable performance
  • โœ“Module Interface DescriptionDC the positive pole of the external DC power supply DC external DC power supply negative pole IN1IN2IN3IN4 input terminal NO the relay often opens the interface the relay suspends before pulling in and then shortens the connec
  • โœ“Output capability AC 250V30A DC 30V30A less than Be able to control various appliances and other equipments with large current
Delivery timeline
Dispatch2 to 4 days
Transit8 to 14 days
Delivery12 to 21 days

Tracking is provided end to end.

YWBL-WH 30A 4 Channel Relay Module Expansion Board with Optocoupler for DSP AVR ARM (5VDC)