RUEF400 PTC Resettable Fuse 30V 4A Through Hole
Prices updated: 13 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Makers ElectronicsCheapest | RUEF400 PTC Resettable Fuse 30V 4A Through Hole | 5.5 EGP | View in store |
 UGE | RUEF400 Series 30V PPTC PolySwitch Resettable Fuse 4A 30V | 11.4 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 5.5 EGP
About this product
The RUEF400 is a 30V, 4A radial-leaded resettable PPTC (PolySwitch) fuse for through-hole mounting. It limits current during an overcurrent fault and resets automatically once the fault is removed and the device cools. It suits protecting low-voltage PCB circuits, sensors and peripherals.
Specifications
- Rated voltage
- 30V
- Rated current
- 4A
- Fuse type
- Resettable PTC (PPTC)
- Mounting
- Through-hole, radial leads
- Product series
- RUEF
Frequently asked questions
What is the price of RUEF400 PTC Resettable Fuse 30V 4A Through Hole in Egypt?
RUEF400 PTC Resettable Fuse 30V 4A Through Hole currently costs between 5.5 and 11.4 EGP across 2 offers in Egypt.
Where can I buy RUEF400 PTC Resettable Fuse 30V 4A Through Hole in Egypt?
RUEF400 PTC Resettable Fuse 30V 4A Through Hole is available from Makers Electronics and UGE. Compare the offers above to find the best price.
How does this PTC fuse protect a circuit?
It is wired in series with the load. Under normal current its resistance is low. If current stays above its 4A rating, it heats up, its resistance rises sharply and limits the current. After the fault is removed and the device cools, it returns to low resistance automatically. It reacts more slowly than a glass fuse, so it is not a substitute for fast short-circuit protection.
Can I use it on a 12V or 24V circuit?
Yes, as long as the circuit voltage does not exceed its 30V rating. Choose a current rating above the normal operating current of your load, because a rating that is too low may trip during normal operation.
