Media gallery
Media gallery

Yokogawa SEC402-21 ESB Bus Coupler Module Brand New

13 in stock

Manufacturer: Yokogawa
Product No.: SEC402-21
Product Type: ESB Bus Coupler Module
Condition: Brand New
Payment: T/T, Western Union
Weight: 0.24 kg
Dimensions: 3.2 × 10.6 × 13 cm
Shipping port: Xiamen
Warranty: 12 months

Description
Reviews
Shipping & Payment

Overview

The Yokogawa SEC402-21 is an ESB Bus Coupler Module. It enables high-speed, reliable communication between safety control units and node units. This module ensures data integrity in ProSafe-RS safety control systems. It mounts in slots 7 and 8 of the safety control unit and supports redundant network configurations.

Technical Specifications

Model Number: SEC402-21
Type: ESB Bus Coupler Module
System Compatibility: Yokogawa ProSafe-RS safety control systems
Communication Interface: ESB Bus (Ethernet Safety Bus)
Slot Position: Slots 7 and 8 of the safety control unit
Connection Capacity: Up to 9 safety node units per upper or lower port
Connectable Units: Up to 13 I/O nodes
Transmission Speed: 128 Mbps (I/O module data transmission)
Transmission Distance: Maximum 10 m per upper or lower ESB bus cable
Network Structure: Bus
Network Redundancy: Dual-redundant for transmission channel
Redundancy Support: Yes
Current Consumption: 0.5 A
Weight: 0.24 kg
Operating Temperature: -20 to 70 °C
Storage Temperature: -40 to 85 °C
Installation Standard: Complies with JEM 1459 reference dimensions
Applications: Emergency shutdown systems, safety instrumented systems (SIS), process safety

Payment: T/T, Western Union.

Shipping port: Xiamen.

Lead time: Typically 1–3 working days after payment confirmation (subject to stock).

Worldwide delivery: We ship industrial automation parts to customers around the world. Freight is quoted with your RFQ.

F.A.Q.

Common questions about quotes, shipping, warranty and returns

Click Request a Quote on the product page and send us the part number, required quantity, and destination country. Our sales team will reply with current availability, pricing, and estimated delivery time.

In-stock items are normally prepared after payment and order confirmation. Most orders are dispatched from our warehouse in China, although the shipping location may vary depending on current stock.

Yes. We ship industrial automation parts to customers worldwide. Shipping cost and transit time depend on the destination, package weight, product size, and local import requirements.

We commonly use DHL, FedEx, UPS, and other international courier services. The carrier can be selected according to the destination, delivery speed, shipment size, and customer requirements.

Our products are generally covered by a 12-month warranty. Eligible products may also be returned under our 30-day refund policy. Please contact our team before returning any item to confirm the applicable terms and return instructions.