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The Honeywell 8U-BXCB20-CN 51307039-100 Circuit Breaker Box Assembly is a robust Series 8U module engineered for reliable power distribution and protection in industrial automation systems. Designed to integrate seamlessly with Honeywell DCS platforms, this assembly ensures safe circuit management, stable bus communication, and long-term operational reliability.
Model Number / Order Code: 8U-BXCB20-CN 51307039-100
Manufacturer: Honeywell
Module Type: Circuit Breaker Box Assembly
Condition: Brand New
System Compatibility: DCS (Distributed Control System)
Product Range: Series 8U
Dimensions: 120 × 145 × 65 mm (approx.)
Weight: 0.28 kg
HS Code: 8537101190
Origin: USA
Lead Time: In Stock
MOQ: 1
Operating Temperature: -25°C to +60°C
Mounting: DIN-rail installation
Protection: Integrated circuit breaker functionality for overload and short-circuit protection
Communication: Ethernet-based bus interface
Compliance: IEC 61131-2, UL 508
MTBF: 500,000 hours (industrial-grade reliability)
Additional Features: Hot-swappable design, diagnostic LEDs, reinforced terminals for vibration resistance.
Provides circuit protection and bus communication in one compact assembly.
Ensures safe power distribution with integrated breaker functionality.
Hot-swappable capability allows maintenance without interrupting system operation.
Diagnostic LEDs simplify monitoring and troubleshooting.
Designed for continuous operation in harsh industrial environments.
Power distribution and protection in chemical and petrochemical plants.
Circuit management in power generation facilities.
Manufacturing systems requiring reliable breaker assemblies with bus communication.
Large-scale automation projects integrating Series 8U modules.
Q: What is the primary function of this assembly? A: It combines circuit breaker protection with bus communication for Series 8U systems.
Q: Can the assembly be replaced during live operation? A: Yes, the hot-swappable design supports safe replacement without downtime.
Q: Is it suitable for high-vibration environments? A: Yes, reinforced terminals and industrial-grade construction ensure reliable performance under vibration up to 5G.

Quick dispatch from our global inventory to reduce downtime and ensure uninterrupted operations.
All parts are sourced from reputable manufacturers and undergo thorough quality checks.
Extensive stock of industrial automation and discontinued parts, ready for immediate shipment.
Every product — including obsolete items — is covered by a 12-month warranty and 30-day return guarantee.
All product names, trademarks, brands, and logos mentioned on this website are the property of their respective owners.These names and trademarks are used for identification and reference purposes only.We are an independent supplier of industrial automation spare parts.We are not an authorized distributor, dealer, or representative of any manufacturer.Products supplied may include surplus inventory or unused items.We do not claim any affiliation with or endorsement by the original manufacturers.