Eaton ALS-250B Fuse - 36 Vdc, Non-indicating, 250 A
Part Number: ALS-250B
Quick Summary
ALS-250B fuse provides DC circuit protection for forklift and battery charger systems. Finding a compact, reliable protection device that fits in limited space while delivering consistent performance is a common challenge in material handling and electrical distribution. While the provided data lists Not Applicable for standard certifications, always verify SIL, CE, and IP ratings in the official Eaton datasheet for the final certification scope. This DC fuse supports 36 Vdc systems up to 250 A and ships in bulk, offering a cost-effective path to streamlined spare parts and reduced downtime for each fleet and facility.
Product Information
Extended Description
ALS-250B Eaton: Eaton Bussmann series ALS fuse, Non time-delay, Type B, DC circuits protection for fork lift truck and battery chargers, 250 A, Non-indicating, Standard, 36 Vdc
Product Name
Eaton Bussmann series ALS fuse
Catalog Number
ALS-250B
UPC
051712395571
Product Length/Depth
3.75 in
Product Height
1.63 in
Product Width
1.63 in
Product Weight
0.184 lb
Warranty
Not Applicable
Compliances
Not Applicable
Catalog Notes
Bulk
Amperage Rating
250 A
Voltage rating
36 Vdc
Packaging type
Standard
Fuse indicator
Non-indicating
Special features
Silver-plated fuse caps
ALS-250B~ONE TIME FUSE-125V-TYPE A
ALS-250B~ONE TIME FUSE-125V-TYPE A
Bussmann series Fuseology
Eaton Specification Sheet - ALS-250B
Feature → The ALS-250B has a compact footprint (3.75 in L × 1.63 in W × 1.63 in H) and a lightweight design (0.184 lb). Business Impact → This small form factor enables quick installation in crowded panels and minimizes cabinet rework during retrofits. Application → Perfect for DC distribution in forklift motor controllers and battery chargers where space is at a premium. Feature → Amperage rating of 250 A provides robust overcurrent protection for high-current DC circuits. Business Impact → Reduces nuisance trips and protects critical drives and chargers, cutting maintenance costs. Application → Well-suited for 36 Vdc forklift charging circuits and high-current DC distribution near the vehicle. Feature → Voltage rating of 36 Vdc aligns with typical forklift and charger supplies. Business Impact → Ensures reliable protection without false trips during startup surges. Application → Ideal for 36 Vdc forklift trucks and battery charging harnesses. Feature → Non-indicating fuse with silver-plated fuse caps. Business Impact → Enhances contact reliability and corrosion resistance in harsh environments, extending service life. Application → Beneficial for industrial installations where long-term durability matters. Feature → Bulk catalog packaging and standard availability. Business Impact → Simplifies procurement, stocking, and fleet-wide maintenance planning. Application → Supports cross-site deployments and service centers needing rapid replacements.
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FAQs
The ALS-250B is designed to protect high-current DC circuits in industrial equipment, notably forklift motor controllers and battery charging systems operating at 36 Vdc. Its 250 A rating ensures consistent overcurrent protection for demanding loads, reducing the risk of damage to drives, controllers, and chargers and supporting longer equipment life in harsh environments.
ALS-250B features a compact footprint with a length of 3.75 inches, width of 1.63 inches, and height of 1.63 inches, weighing 0.184 pounds. It is offered in standard bulk packaging, which simplifies stocking and replacement across multiple sites and fleets, improving maintenance efficiency and inventory control.
Yes. The ALS-250B is rated for 36 Vdc operation and provides protection for high-current DC circuits found in forklift truck systems and battery charging stations. When selecting, verify that the circuit current and voltage align with the 250 A and 36 Vdc specifications, and consider the mounting and panel space to ensure proper fit and accessibility.
The provided data marks compliances as Not Applicable. For critical approval details such as SIL, CE, or IP ratings, consult the official Eaton datasheet and product documentation. Always confirm current regulatory certifications with the manufacturer before deployment in regulated environments or where specific approvals are required.
When replacing with ALS-250B, ensure the device is intended for 36 Vdc systems and that wiring gauges and harnesses meet manufacturer recommendations. The fuse is non-indicating, so rely on system diagnostics or current monitoring to confirm protection status. Use the bulk-packaged supply to maintain consistent spare parts availability and minimize downtime during field service.