Home › Manufacturers › Siemens › 5SD440

Siemens

Siemens 5SD440 SILIZED Fuse Link — 25A, 500V, Quick-acting

Siemens 5SD440 SILIZED quick-acting fuse link for semiconductor protection.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number5SD440

Type SILIZED fuse link

Size DII

Base E27

Current Rating 25A

Get a price for 5SD440

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

SILIZED fuse link Semiconductor protection Quick-acting characteristic DII size 25A current rating 500V AC voltage

Product description

The Siemens 5SD440 is a SILIZED fuse link engineered for fast-acting (F) semiconductor protection. This DII size fuse, with an E27 base, has a 25A current rating and a 500V AC voltage rating. It is designed to provide extremely rapid interruption of fault currents, safeguarding sensitive electronic components.

This fuse link is ideal for power electronic applications where quick response to overcurrents is essential to prevent damage to components like transistors and thyristors. It is commonly found in motor drives, power supplies, and industrial control systems.

Stanlo Automation, a veteran-owned business, is your reliable source for the Siemens 5SD440. We provide surplus industrial automation parts with a commitment to quality and customer satisfaction.

Technical specifications

Type	SILIZED fuse link
Size	DII
Base	E27
Current Rating	25A
Voltage Rating	500V AC
Characteristic	Quick-acting (F)
Application	Semiconductor protection
Manufacturer	Siemens

Common applications

Motor drives

Power supplies

Industrial automation

Power electronics

Semiconductor safeguarding

Compatible systems

Standard DIAZED fuse holders (DII size) Power electronic systems

Also known as

Siemens 5SD440 fuse SILIZED 25A fuse Siemens DII fast-acting fuse

Replaces / compatible with

Designed as a replacement for Siemens SILIZED fuse links with similar specifications.

Technical note

Expert tip

The 5SD440 is specifically designed for protecting semiconductor devices; using it in applications requiring time-delay characteristics will lead to premature failure.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

What is the difference between the Siemens 5SD440 and a standard gG fuse?

The Siemens 5SD440 is a quick-acting (F) fuse, meaning it interrupts fault currents much faster than a standard gG (general purpose) fuse. This speed is crucial for protecting sensitive semiconductor devices that cannot withstand the same level of thermal stress as other components.