What do letters on fuses mean?

What do letters on fuses mean?

The number and the A (may be mA) is the amp rating of the fuse. The L denotes that it is a low breaking capacity or glass fuse (H is High breaking capacity and is usually a ceramic package). A marking of F315mA would be a 315 milliAmp Quick Acting or Anti Surge, fuse.

What is a Type P fuse?

Standard non-time delay fuses are for receptacle and lighting circuits. For Canadian requirements, a type “P” fuse is used for non-motor loads and type “D” fuses are used for electric heating and cycling loads circuits. Both fuses have low melting-point temperature elements.

What does ABC stand for on A fuse?

Bussmann ABC series are a group of low voltage, general purpose miniature fuses. These fuses are used to protect electronic circuits and components. Optional Axial Leads. Ceramic Tube.

What does H mean on A fuse?

What is a Class H, Fuse? A UL Class H fuse is a non-current limiting, fuse that is rated to interrupt a minimum of 10,000 amps. The Class H fuse is a one-time fuse that does not have any appreciable degree of time delay. Class H fuses are rated at either 250 volts AC or 600 volts.

What is a Type C fuse?

Class C fuses are not dimensionally or electrically interchangeable with other North American fuses. They feature ceramic bodies and bolt-in mounting. They are for short-circuit protection only, in motor controllers, for example, where overload protection is provided by an overload relay.

What does a Littelfuse do?

Littelfuse battery management devices provide methods of conserving battery power, protecting against over-discharge, combining and protecting auxiliary equipment such as liftgate motors.

How do you tell if a cartridge fuse is blown without a multimeter?

To test a fuse without multimeter, take a flashlight equipped with a flat battery. Unscrew the bulb and get the battery. Place the fuse of one of the battery “blades” and the base of the bulb on the other side of the fuse. Put the bulb pad in contact with the second “blade” of the battery.

What does a cartridge fuse look like?

Types. Cartridge fuses are cylindrical in shape and have contact points at each end. They are rated for circuits over 30 amps and typically 240 volts. They have a cylindrical metal cap on each end and look like big versions of the fuses you find inside the plug end of holiday lights.

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