Why Choose the ABB E9F10AM20 Cylindrical Fuse?
The ABB E9F10AM20 is a compact 20 A aM cylindrical fuse link designed primarily for short-circuit protection of industrial motor circuits. Identified by ABB as the E 9F10 AM20 with order code 2CSM257463R1801, it forms part of the ABB E 9F range of cylindrical fuses for motor-protection applications.
The fuse uses the standard 10.3 × 38 mm cylindrical format and features an aM utilisation category. Its delayed operating characteristic is suited to motors with high starting currents, allowing normal motor-starting inrush to pass while providing effective interruption of dangerous short-circuit currents.
With a rated current of 20 A, rated voltage of 500 V AC and breaking capacity of 120 kA, the E9F10AM20 provides dependable protection for demanding motor circuits. Its compact ceramic construction is suitable for compatible 10.3 × 38 mm fuseholders and fuse disconnectors used in machinery, automation and motor-control equipment.
Key Advantages
- Purpose-designed aM fuse for motor short-circuit protection.
- 20 A rated current for appropriately coordinated motor circuits.
- 500 V AC rated voltage for industrial electrical applications.
- High 120 kA breaking capacity for effective fault-current interruption.
- Delayed operating characteristics accommodate normal motor-starting inrush currents.
- Compact 10.3 × 38 mm cylindrical format for compatible fuseholders.
Key Features
- ABB E 9F10 cylindrical fuse range.
- 20 A rated current.
- 500 V AC rated voltage.
- 120 kA breaking capacity.
- aM utilisation category.
- 10.3 × 38 mm cylindrical fuse format.
- 1.05 W power loss at rated current.
- Ceramic fuse construction for industrial motor-protection applications.
Delayed Protection for Industrial Motor Circuits
aM cylindrical fuses are designed for motor circuits where high temporary inrush currents occur during starting. Their delayed operating characteristic helps prevent unnecessary fuse operation during normal motor start-up while retaining high short-circuit interruption capability.
Because an aM fuse provides partial-range protection, it is normally coordinated with a suitable overload relay or other motor overload protection device. The ABB E9F10AM20 combines a 20 A current rating, 500 V AC capability and 120 kA breaking capacity in a compact 10.3 × 38 mm format.
Typical Applications
- Industrial motor circuits.
- Motor starters and control panels.
- Motor control centres.
- Pumps, fans and compressors.
- Conveyor and material-handling systems.
- Industrial machinery and automation equipment.
- OEM motor-control assemblies.
