Microclimate Ultra Fast Fuse Pack (5) – Thermostat Protection Fuses

The Microclimate Ultra Fast Fuse Pack contains five replacement ultra-fast fuses designed specifically for use with Microclimate thermostats. These are not standard fast-blow fuses — they operate at a speed that allows them to protect thermostat circuitry against large electrical spikes, particularly the kind that can occur when an incandescent lamp fails suddenly.

Why These Fuses Matter

Standard fast-blow fuses, as fitted to some other thermostat brands, are not fast enough to intercept the electrical surge caused by a failing incandescent bulb. The ultra-fast rating of these fuses gives the thermostat meaningful protection in that critical moment, helping to prevent damage to the unit itself. For keepers running heat lamps or other incandescent sources through their thermostat, this distinction is practically significant.

Compatibility

These fuses are fitted as standard in all Microclimate Prime thermostats, and in all Microclimate Dimming thermostats (B1 and B1ME) manufactured after January 2014. This pack is the correct replacement option when a fuse needs changing in any of these units.

Keeping a spare pack to hand means a blown fuse does not mean a period without temperature control — a straightforward precaution for any keeper relying on a Microclimate thermostat to maintain their vivarium or terrarium environment.