Eaton 70B-2A Telecommunication Fuse - CE Marked
Part Number: 70B-2A
Quick Summary
The Eaton 70B-2A telecommunication fuse protects telecom circuits by interrupting fault currents in network equipment. Field upgrades demand reliable, easy-to-install protection that minimizes downtime and avoids costly redesigns. CE marking confirms European-safety compliance for broad deployment across EU and other markets. This Bussmann 70 Series device supports 125 Vac and 300 Vdc systems, while offering a color-coded orange body for quick identification. In practice, using this non-indicating ferrule-end fuse reduces maintenance surprises and improves protection reliability for data centers, telecom racks, and industrial networks.
Product Information
Extended Description
70B-2A Eaton: Eaton Bussmann series 70 Series telecommunication fuse, Color code Orange, 125 Vac, 300 Vdc, 2 A, 1 kAIC at 300 Vdc, Non Indicating, Ferrule end X ferrule end
Product Name
Eaton Bussmann series 70 Series telecommunication fuse
Catalog Number
70B-2A
UPC
051712736084
EAN
5027590099493
Product Length/Depth
1.63 in
Product Height
2.5 in
Product Width
0.42 in
Product Weight
0.5 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
2 A
Interrupt rating
1 kAIC at 300 Vdc
Voltage rating
125 Vac, 300 Vdc
Packaging type
Standard
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Special features
Color code orange
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - 70B-2A
70B-2A~ATandT COLUMBUS FUSE
70B-2A~ATandT COLUMBUS FUSE
Datasheet - FNQ-30
Feature: 2 A amperage rating with 1 kAIC interrupt rating at 300 Vdc. Business Impact: Protects critical telecom circuits from short-circuit events, reducing downtime and preventing equipment damage. Application: Use in telecom line cards and network equipment powered by DC 300 V supplies. Feature: 125 Vac and 300 Vdc voltage ratings. Impact: Enables protection across both AC control circuits and DC telecom rails, supporting mixed environments. Application: Ideal for equipment operating on dual-supply telecom architectures. Feature: Ferrule end x ferrule end. Impact: Simple, reliable inline connections with standard ferrule terminations, enabling fast field replacements. Application: Fits common fuse block sockets in crowded telecom enclosures. Feature: Color code orange. Impact: Enhances wiring accuracy and quick fault isolation during maintenance cycles. Application: Visual identification in dense panels reduces human error. Feature: Non-indicating. Impact: Eliminates indicator-related false positives in systems with centralized status monitoring. Application: Suitable for monitoring schemes that rely on remote fault indicators. Feature: Dimensions 1.63 in L × 2.5 in H × 0.42 in W. Impact: Fits standard fuse holders and compact telecom enclosures, conserving panel space. Application: Used in compact network racks and telecom backplanes. Feature: CE Marked. Impact: Confirms compliance with European safety standards, supporting EU deployments. Application: Satisfies regulatory requirements for cross-border telecom projects.
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FAQs
The 70B-2A uses ferrule-end terminations compatible with common inline fuse holders used in telecom racks and 70 Series assemblies. With ferrule-to-ferrule connections, it snaps into standard fuse block sockets without adapters, simplifying stocking and field replacement. Ensure correct polarity and clearance in crowded panels; the orange color aids quick identification during maintenance.
The 70B-2A is rated for 2 A with an interrupt rating of 1 kAIC at 300 Vdc and voltage ratings of 125 Vac or 300 Vdc. It is a non-indicating fuse with ferrule-end connections, designed for standard telecom power rails. This combination provides reliable fault clearing while minimizing nuisance trips in typical network circuits.
Designed for Bussmann 70 Series telecom fuses, the 70B-2A protects line cards, patch panels, and data-center telecom backplanes that run on dual power supplies. Its ferrule ends and color coding simplify integration in crowded enclosures, and its ratings support both AC and DC telecom environments for reliable protection in mission-critical networks.
The 70B-2A carries CE marking, indicating compliance with European safety standards for electrical protection devices. This supports regulatory alignment in EU deployments and streamlines procurement for integrated telecom systems. For projects requiring additional certifications, consult Eaton datasheets or regional qualificiation guides to verify suitability.
By protecting critical telecom rails from overload faults with a robust 1 kAIC interrupt rating, the 70B-2A reduces unscheduled downtime and protects customer premises equipment. The ferrule-end design enables fast field swaps, lowering maintenance time, while standardized Bussmann 70 Series compatibility helps reduce spare-part inventory and overall lifecycle costs.