30A time-delay fuse

This is a 30A replacement fuse for hot tub control systems. Fuses like this are usually attached directly to the circuit board of the spa.

Balboa control boxes contain several of these fuses; usually one for each major piece of equipment controlled by the system.

It is a T-type fuse, which means that it is a slow acting fuse, sometimes called an anti-surge fuse. It is able to tolerate high levels for a short time without short circuiting. Therefore, if a sudden change occurs, this fuse does not blow immediately.

Dimensions
Length: 41 mm
Diameter: 10 mm

Part numbers
Cooper-Bussman: SC-30
Dimension One: 01560-53
Sundance: 6660-105

Technical Data