ABB TU843 3BSE021443R1 | Redundant Terminal Block Price Advantage

Release time	Dec 8, 2025
Brand	ABB PLC
Product Numbe	ABB TU843 3BSE021443R1
Country Of Origin	Sweden
Dimensions	131 × 64 × 186.5 mm
Weight	0.6kg
Condition	New & In Stock
Payment Methods	T/T, PayPal, Western Union
Lead Time	1-3 Working Days
Warranty	One Year
Courier partners	DHL, UPS, TNT, FedEx and EMS.

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Overview
The ABB TU843 3BSE021443R1 is a Redundant Terminal Block designed for use in ABB’s 800xA control system. It provides dual redundant wiring connections for high-availability applications, ensuring continuous operation even in the event of a single wiring or channel failure. With stable signal routing and a reliable terminal layout, the TU843 is ideal for critical process environments requiring maximum uptime.

General Information
Part Number: 3BSE021443R1
Manufacturer: ABB
Series: TU (Termination Unit / Terminal Block)
Type: Redundant Terminal Block
Mounting: DIN rail or enclosure installation
Technology: Redundant field signal termination
Brand / Country of Origin: ABB / Sweden

Power Specifications
Supply Voltage: Powered through the connected I/O subsystem
Power Consumption: ≤ 5 W
Input: From controller or I/O backplane
Protection: Integrated surge and polarity protection

Communication & Interface
Terminal Type: Redundant field wiring terminal block
Connectivity: Supports dual-channel redundant I/O module connections
Diagnostics: Ensures reliable wiring continuity and stable signal performance
Field Interface: Direct wiring interface for process signals and redundant paths

Environmental
Operating Temperature: −20 to +60 °C
Humidity: Up to 95% RH, non-condensing
Protection Rating: IP20, suitable for protected control cabinet environments

Dimensions & Weight
Dimensions (L × W × H): 131 × 64 × 186.5 mm
Weight: 0.6 kg

Stock updated daily — grab yours now!

QDo you provide technical support or installation services?

A Yes, we offertechnical supportfor installation, configuration, and troubleshooting.

QCan I return products if they don’t meet my requirements?

A Returns are accepted within30 daysif the product is unused, unopened, and in its original packaging. Return shipping costs are the buyer's responsibility.

QHow can I ensure compatibility with my existing systems?

A If unsure, please provide yoursystem details, and our support team will verify compatibility before purchase.

QAre there discounts for new wholesale customers?

A We occasionally offerpromotional discountsfor new wholesale customers. Contact us for current offers.

QCan I purchase different quantities of a product?

A Yes, we offerflexible ordering options, whether you need a single unit or a large batch.

QWhat payment methods do you accept for wholesale orders?

A We accept various methods, includingbank transfers (T/T), letters of credit (L/C), and more upon agreement.

QCan I get discounts for bulk purchases?

A Yes, we offercompetitive pricingfor bulk purchases. Contact our sales team for a custom quote.

QWhat is the minimum order quantity (MOQ)?

A The MOQ is usuallyone unit. For bulk orders, please contact us for discounts and pricing details.

QHow long does shipping take?

A Shipping times vary by location. With our16 global warehouses, we strive for fast delivery. Contact us for an estimated delivery time.

QHow can I verify the product before purchasing?

A We can provide high-resolution product images upon request, and our team can arrange warehouse photos for verification.

QDoes this product come with a warranty?

A Yes, we provide a1-year warrantyand support returns and exchanges to protect your rights.

Company Information
E-mail		[email protected]
Mobile		+8613620394314
Whatsapp		+8613620394314
WeChat		+8613620394314
Add		Room 1102, Jiuzhou Commercial Building, Siming District, Xiamen, China

Warranty Conditions

At Qunlebu Co., Ltd., we are committed to ensuring the quality of our products. Our one-year warranty provides coverage for any defects in material or workmanship, excluding damages caused by deliberate misuse.

🛡️Coverage Details:

This warranty encompasses all instances of product malfunction or failure due to inherent manufacturing flaws, with the exception of intentional damage.

📝Claim Process:

To avail of warranty services, please notify us of any quality-related issues within the warranty period. We may conduct online troubleshooting and examination as needed.

🚚Shipping Assistance:

We understand the importance of prompt service. Therefore, we cover return shipping costs for warranty-related returns within the first month of supply. Within three months of supply, we cover one-way shipping costs for warranty-related returns. After three months, the customer is responsible for shipping costs both ways.

🚫Exclusions:

Unauthorized modifications, repairs, or misuse of the product.

Normal wear and tear.

Negligence.

Extreme environmental conditions beyond product specifications.

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