Eaton BK/GMT-1A Fuse - 125 Vac, 60 Vdc, 1 A, 300 AIC
Part Number: BK/GMT-1A
Quick Summary
Eaton GMT telecommunication fuse protects telecom circuits with fast-acting overload protection. Engineers often battle nuisance trips and inconsistent ratings, leading to downtime and costly field service. This device is CE marked and RoHS compliant, aligning with European regulatory and environmental standards. Its 125 Vac and 60 Vdc ratings, 1 A current rating, and 300 AIC at 125 Vac provide reliable protection for telecom equipment in data centers and service cabinets. Designed for quick installation and long-term reliability, it supports standard panel and rack designs while reducing maintenance costs.
Product Information
Extended Description
BK/GMT-1A Eaton: Eaton Bussmann series GMT telecommunication fuse, 125 Vac, 60 Vdc, 1 A, 300 AIC at 125 Vac, 450 AIC at 60 Vdc, Non Indicating, Fast-acting, Thermoplastic, Tin-plated beryllium copper terminal
Product Name
Eaton Bussmann series GMT telecommunication fuse
Catalog Number
BK/GMT-1A
UPC
051712576901
EAN
5027590444064
Product Length/Depth
0.78 in
Product Height
0.62 in
Product Width
0.11 in
Product Weight
0.1 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
1 A
Interrupt rating
300 AIC at 125 Vac 450 AIC at 60 Vdc
Voltage rating
125 Vac, 60 Vdc
Packaging type
Standard
Fuse indicator
Non-indicating
BK/GMT-1A~BK-GMT-1A~BUSS INDICATING FUSE FAST ACTING
BK/GMT-1A~BK-GMT-1A~BUSS INDICATING FUSE FAST ACTING
Bussmann series Fuseology
Eaton Specification Sheet - BK/GMT-1A
Feature: Fast-acting GMT fuse delivers rapid interruption during overcurrent events. Benefit: Minimizes fault duration, protecting sensitive telecom components and reducing downstream damage. Application: Data center power distribution panels and telecom line cards benefit from predictable outages and improved uptime. Long-tail keywords: fast-acting telecom fuse, GMT series fuse, 125 Vac protection, overload protection. Feature → Business Impact → Application: Thermoplastic body and tin-plated beryllium copper terminals provide durable contact and environmental resilience, lowering replacement cycles and maintenance costs in outdoor and harsh environments. Application: Outdoor telecommunications cabinets and rugged rack installations. Feature → Business Impact → Application: 1 A rating with 300 AIC at 125 Vac and 450 AIC at 60 Vdc offers clear interrupt capabilities for mixed AC/DC circuits, enabling safer equipment interfaces and compliance. Application: Telecom power shelves and mixed-signalPDUs. Feature → Business Impact → Application: Non-indicating design reduces visual clutter in high-density panels, speeding inspection and diagnostics during routine maintenance. Application: Mass deployments in service cabinets with quick replacement needs. Feature → Business Impact → Application: CE Marking and RoHS compliance ensure regulatory alignment and environmental stewardship, reducing risk in cross-border deployments. Application: Global telecom installations and regulated industrial environments. Compatibility and installation advantages: Standard packaging and compatible form factor with Bussmann GMT series support fast stocking, straightforward field retrofit, and reduced labor time during commissioning. Industry insight: In high-volume rollouts, predictable fuse behavior and standardized components translate to lower total cost of ownership and quicker repair cycles.
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FAQs
BK/GMT-1A installs like other GMT series fuses with its tin-plated beryllium copper terminals and thermoplastic body. Ensure the panel has the correct footprint, insert with the correct orientation, and secure terminals per standard terminal torque guidelines. The non-indicating design simplifies quick visual checks while maintaining reliable contact in rack-mounted or cabinet-based installations.
The fuse offers a 1 A rating with high interrupt ratings—300 AIC at 125 Vac and 450 AIC at 60 Vdc—providing fast overcurrent protection across mixed AC/DC telecom circuits. This combination minimizes nuisance trips and protects sensitive equipment in network and data-center environments.
Yes. BK/GMT-1A is part of the GMT family and shares the same form factor, packaging, and mounting compatibility. This enables straightforward substitution, streamlined stock management, and easier field upgrades across telecom cabinets and power distribution units.
The BK/GMT-1A is CE marked and RoHS compliant, ensuring regulatory alignment for European markets and environmental compliance. These certifications support safer, legally compliant deployments in data centers, telecom rooms, and cross-border installations.
By using a fast-acting GMT fuse with high interrupt ratings and durable terminals, you can reduce downtime from nuisance trips, extend equipment life, and simplify maintenance. Standardized GMT components also lower parts diversity, accelerate replacements, and improve overall reliability in high-volume rollouts.