OMEGA ST522240 5×20 mm Glass Fuse 4A Slow – 5-Pack
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Description
Description
The OMEGA 25.1500.42 ST522240 is a slow-blow (time-delay) glass cartridge fuse in the standard 5×20 mm format. Rated at 4A and 250V, it tolerates brief inrush currents — such as those produced by motors, transformers, and capacitive loads at start-up — without nuisance tripping, while still protecting the circuit against sustained overcurrents. The transparent glass body allows visual inspection of the fuse element without removal from its holder.
Contacts are nickel-plated brass for corrosion resistance and a stable electrical connection across the fuse's service life. Supplied as a pack of 5, providing standard service stock for maintenance trays or equipment commissioning.
Key Features
- Type: slow-blow / time-delay (T)
- Current rating: 4A
- Voltage rating: 250V
- Body material: glass
- Dimensions: 5×20 mm
- Contact material: nickel-plated brass
- Pack quantity: 5 pcs
Product Benefits
- Slow-blow characteristic handles start-up inrush currents without nuisance tripping in motor and transformer circuits
- Transparent glass body provides instant visual fault diagnosis without removing the fuse from its holder
- Nickel-plated brass contacts resist oxidation and maintain stable contact resistance throughout service life
- Standard 5×20 mm format is universally compatible with the vast majority of fuse holders in consumer and industrial equipment
- 5-pack provides on-hand replacement stock for maintenance kits and service trays
Technical Specifications
- Model: 25.1500.42 / ST522240
- Type: Slow-blow / time-delay (T)
- Current rating: 4A
- Voltage rating: 250V
- Body: Glass
- Dimensions: 5×20 mm
- Contacts: Nickel-plated brass
- Weight per fuse: 0.08 g
- Pack quantity: 5 pcs
Why You'll Love It
- Slow-blow action prevents unnecessary fuse replacements in circuits with inductive or capacitive loads at start-up
- Standard 5×20 mm size fits virtually all fuse holders without adapters
- Visual inspection in seconds — no need to remove the fuse to determine if it has blown
- 5-pack quantity is the standard service replacement quantity, reducing re-order frequency
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Inspired to create a chair where the back
Made entirely of oak, the Bow Chair is comfortable, visually pleasing and brimming with character. The moulded plywood seat is unusually wide in proportion to its depth and a waterfall edge at the front softens contact with the hamstrings.
- Ships directly from US warehouses
- 4,8 Review Score
- Over 200 Curated Electronics
Inspired to create a chair where the back
Made entirely of oak, the Bow Chair is comfortable, visually pleasing and brimming with character. The moulded plywood seat is unusually wide in proportion to its depth and a waterfall edge at the front softens contact with the hamstrings.
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