2CSM258703R1801 ABB E9F14AM20 E 9F14 AM20 Fuse 20 A 14 × 51 mm aM

Why Choose the ABB E9F14AM20 Cylindrical Fuse?

The ABB E9F14AM20 is a reliable 20 A cylindrical aM fuse designed for short-circuit protection of motors and associated switching equipment in industrial electrical installations. As part of the ABB E 9F cylindrical fuse series, it features a delayed operating characteristic suited to motor circuits that experience high inrush currents during start-up.

Featuring an aM utilisation category, the E 9F14 AM20 is specifically intended for motor circuit protection where overload protection is provided separately. Its delayed characteristic helps accommodate normal motor starting currents while providing dependable protection against damaging short-circuit currents.

With a rated current of 20 A, a rated voltage of 690 V AC and a 120 kA breaking capacity, the E9F14AM20 provides robust protection for demanding industrial applications. Its standard 14 × 51 mm cylindrical format enables straightforward installation in compatible ABB fuseholders and fuse disconnectors.

Key Advantages

• Purpose-designed aM cylindrical fuse for motor protection.
• 20 A rated current for appropriately rated motor circuits.
• 690 V AC rated voltage suitable for industrial electrical systems.
• High 120 kA breaking capacity for dependable short-circuit protection.
• Delayed operating characteristic accommodates motor start-up inrush currents.
• Compact 14 × 51 mm cylindrical format for compatible fuseholders and disconnectors.

Key Features

• ABB E 9F14 aM cylindrical fuse series.
• 20 A rated current.
• 690 V AC rated voltage.
• 120 kA breaking capacity.
• aM utilisation category for motor circuit protection.
• 14 × 51 mm fuse size.
• Delayed characteristic designed to accommodate high motor starting currents.
• Designed in accordance with IEC 60269-2.
• RoHS-compliant E 9F series construction.
• ABB order code 2CSM258703R1801.

Reliable Short-Circuit Protection for Motor Circuits

aM fuse links are specifically designed to protect motor circuits against short-circuit currents. Their delayed operating characteristic allows the temporary high inrush currents associated with motor start-up without unnecessary fuse operation, making them well suited to industrial motors and motor-control equipment.

Because an aM fuse provides short-circuit rather than full-range overload protection, it is normally coordinated with a suitable overload protective device. The ABB E9F14AM20 can therefore form part of a coordinated motor protection system incorporating contactors, motor starters, overload relays and compatible fuseholders.

Typical Applications

• Industrial motor circuits.
• Motor starters and control equipment.
• Pumps, fans and compressor systems.
• Conveyors and material handling machinery.
• Industrial automation and machinery control panels.
• OEM motor-control assemblies and production equipment.