THE MZ EDGE



The Micro-Z™ Cable: The story behind the cable that outperforms all others. What Do You Really Need in A Surge Protector? • Must divert all transients away from sensitive equipment. • Perform for 20 years - at least! How Do We Achieve 20 Years+ Life? Easy. Use higher rated MOVs on the AC line. On a 120VAC line, use 180V MOVs rather than the typically employed 140-150V MOVs. Concern: In most cases, the use of higher voltage MOVs results in a higher clamp voltage, enabling larger transient exposure to downstream equipment. At first glance, Micro-Z™ cable looks much like any other cable, however its special construction creates a cable with only 60% of the voltage drop of conventional cables. The significant MCG edge is to use higher voltage MOVs overall for long life and lower cable drop to get lower clamp voltage. Micro-Z™ Cable is not just any other cable. It’s a high-performance approach in your fight against surges.

Voltage Drops along Power Cabling - Cable Voltage Drop - Micro-Z vs. #6 AWG
Test Conditions: Velonex Pulse Generator delivered a Standard ANSI C62.41 waveform (6kv/3kA, 8/ 20µs) into a 12 foot cable pair, consisting of two #6 AWG power cables, tightly taped along its full length. Measurements: Voltage drop measurements were made at 1 foot intervals along the cable length.

Micro-Z™ Cable Axial power cabling configuration from the protector to the service panel forces magnetic field cancellation within the cable. This results in a correspondingly low "inductive" voltage drop along the cable that is up to 67% lower than conventional cabling approaches. Observation Your sensitive equipment will be exposed to a peak transient voltage which is the sum of the surge protector’s "Clamp Voltage" + the cable voltage drop, which is a function of its length. Example A surge protector designed for use on 120 VAC Service, will limit a 6kv/3kA (8/20µs) transient to a clamp voltage of 464V at its terminals, ...with 3ft. of #6 AWG cable, equipment exposure totals: 464V + 220V = 684V ...with 3ft. of Micro-Z™ cable, equipment exposure totals: 464V + 70V = only 534V Using 9ft. of Micro-Z™ cable, equipment exposure totals are: 464V + 207V = 671V, or about the same as three feet of #6 AWG cable.

Why Low "Let-Through" Voltage is Critical
Let-through voltage, which is what the sensitive downstream equipment sees, consists of cable drop + SPD (MOV) drop. MCG’s unique Micro-Z™ approach allows very low let-through voltage. Our protectors have very long life and extraordinary clamping.