A70P80-4TAFerraz Shawmut - Fuse

A70P80-4TA Description

electric fuse is a type of electrical safety device designed to protect electrical circuits and equipment from overcurrent conditions. Based on the designation, it has an amperage rating of 70 amps and a voltage rating of 80 volts. The "-4TA" portion of the designation suggests that it is a cylindrical, time-delay fuse with a specific form factor. The time-delay feature allows the fuse to handle temporary current surges without blowing, which can be useful in circuits where a short-term overload is expected, such as in motor start-up circuits or inrush current conditions. The A70P80-4TA fuse is designed to be used in a range of electrical applications, including power distribution, industrial machinery, and automotive systems. It is important to select the appropriate fuse for the specific application to ensure proper protection of the electrical equipment and avoid potential hazards.

Summary of Features

Target Applications

Ferraz Shawmut A70P80-4TA is used for protection of power semiconductors in AC and DC drives up to 700 V, UPS systems, inverters, reduced voltage motor starters and similar power electronic equipment.

Key Specifications

Mersen (Ferraz Shawmut) A70P80-4TA is an Amp-Trap Form 101 A70P semiconductor protection (high speed) fuse, 80 A, 700 VAC / 650 VDC, blade, bolt-in mounting, with trigger actuator (TA) for blown-fuse microswitch. Source: Mersen A70P Amp-Trap Form 101 semiconductor protection fuses datasheet (D 36-37).

Parameter	Value
Series	A70P Amp-Trap Form 101 semiconductor protection fuse
Rated current	80 A
Rated voltage	700 VAC / 650 VDC
Interrupting rating	100 kA AC / 100 kA DC (L/R 10 ms)
Mounting type	4: blade, bolt-in
Indicator	trigger actuator (TA) for blown-fuse microswitch
Characteristics	Very fast acting, current limiting, low I²t, controlled arc voltage
Approvals	UL Recognized Component (file E60314, JFHR2) for AC; DC tested to UL 198L parameters
Overall length (A)	4.38 in (111 mm)
Body diameter / width (B)	1.22 in (31.0 mm)
Mounting hole centres (D)	3.69 in (93.7 mm)
Matching fuse block	P243C

Download A70P80-4TA Datasheet

A70P80-4TA PDF Datasheet