Ferraz Shawmut ATM5 Cylindrical Fast-acting Fuse 5A

Product Description

The FERRAZ SHAWMUT ATM5 is a cylindrical fast-acting fuse rated at 5 amps, designed for electrical circuit protection in control panels, instrumentation, and low-voltage branch circuits. Fast-acting fuses respond immediately to overcurrent events, interrupting the circuit before downstream components sustain damage. The ATM5 carries an interrupting rating of 100 kiloamps (kA) at both AC and DC, making it suitable for high fault-current environments. It conforms to the GMG class standard. Licensed electricians and industrial maintenance technicians are the primary installers of this component.

The ATM5 is used in residential, commercial, and light industrial electrical systems where fast-acting overcurrent protection is required. Common applications include control circuit protection, transformer secondary protection, and instrumentation panel fusing. The 10.5 mm diameter cylindrical body fits standard fuse holders designed for that form factor. This fuse is appropriate wherever the GMG class form factor is specified by panel or equipment documentation.

Key Features

• Fast-acting response for immediate overcurrent interruption
• 5-amp current rating suitable for low-current control circuits
• 100 kA interrupting capacity at AC and DC voltage
• GMG class cylindrical form factor
• 10.5 mm diameter body fits standard cylindrical fuse holders

Compatibility

Designed as an OEM-style replacement for cylindrical GMG class fast-acting fuses used in control panels, instrumentation enclosures, and low-voltage branch circuit protection applications.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the circuit before removing or installing any fuse. Verify that the fuse holder is rated for the GMG cylindrical form factor and that the replacement fuse matches the original amperage and voltage rating. Never substitute a higher-amperage fuse to bypass a repeated overcurrent condition.