Omron

Omron W4S1-03B W4S1 Industrial Switching Hub

SKU W4S1-03B

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Omron

  • Product No.: W4S1-03B

  • Country of origin:Japan

  • Product Type: Industrial Ethernet Switches

  • Payment: T/T, Western Union

  • Weight: 2000g

  • Dimensions: 9.0 cm x 7.8 cm x 2.5 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

Engineered for reliable network performance at the field level, the W4S1-03B industrial switching hub provides robust Ethernet connectivity in demanding factory automation environments. This compact, 3-port unmanaged switch supports fast Ethernet speeds (10BASE-T/100BASE-TX) and is optimized for direct integration with PLCs, HMIs, and distributed I/O systems.

The device ensures stable packet transmission using an internal 80 KB buffer capacity and accommodates up to 2,000 MAC address entries. Designed with industrial-grade resilience, it features a low power consumption profile and comes supplied with a dedicated power supply connector for secure 24 VDC wiring.

Features

  • Compact 3-port layout designed for high-density space-constrained control panels.
  • Full compatibility with IEEE 802.3 (10BASE-T) and IEEE 802.3u (100BASE-TX) Ethernet standards.
  • Integrated 80 KB packet buffer to minimize data frame loss during peak traffic.
  • Support for up to 2,000 MAC addresses.
  • Supplied with a dedicated terminal connector for stable power distribution.

Applications

  • Factory automation and control systems networking.
  • Fieldbus and machine-level Ethernet distribution.
  • PLC-to-HMI communications.
  • Compact control panel integration.

Technical Specifications

Manufacturer Omron
Part Number / Model W4S1-03B
Product Series W4S1 Industrial Switching Hubs
Number of Ports 3
Ethernet Standards IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX
Power Supply Voltage 24 VDC (plus/minus 5%)
Current Consumption 0.22 A
Power Consumption 5.28 W max.
Inrush Current lp = 1.42 A
Buffer Capacity 80 KB
MAC Address Capacity 2,000
Dimensions (H x W x D) 9.0 cm x 7.8 cm x 2.5 cm (approximate)
Shipping Weight 2.0 kg
Included Accessories Power supply connector

Connections and Interfaces

Interface Type Function / Description
RJ45 Ports (1-3) 10/100BASE-TX auto-sensing communication ports
Power Terminal Removable connector for 24 VDC input

Installation Guidelines

  • Mounting: Install within a clean, dry, and dust-free control cabinet. Ensure sufficient spacing around the module vents to facilitate heat dissipation.
  • Wiring: Always use shielded twisted-pair (STP) Ethernet cables (Category 5 or higher) to mitigate electromagnetic interference (EMI) in industrial zones.
  • Power Input: Use the supplied power supply connector to secure the 24 VDC source, maintaining the strict plus/minus 5% voltage tolerance window.

FAQ

What power supply voltage is required for the Omron W4S1-03B?

The W4S1-03B requires a stable nominal voltage of 24 VDC within a tolerance of plus/minus 5%.

Does the W4S1-03B switch package include a power connector?

Yes, a dedicated power supply terminal connector is included as standard with the W4S1-03B module.

What Ethernet speeds and standards are supported by this industrial hub?

The device features 3 ports that support IEEE 802.3 10BASE-T and IEEE 802.3u 100BASE-TX standards for fast Ethernet performance.

What is the buffer size and MAC address capacity of this module?

The W4S1-03B has an internal buffer memory capacity of 80 KB and a MAC address lookup table that holds up to 2,000 address entries.

View all FAQs →

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Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Japan

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