Mikro MK330

Technical Data
SETTINGS
Sensitivity adjustment :
Range 1 is stepping from 0.03 A 0.05 A 0.10 A 0.15 A
Range 2 is from 0.20 A to 0.75 A in step of 0.05 A
Range 3 is from 0.80 A to 3.00 A in step of 0.05 A

Delay time adjustment :
From 0.05 to 3.00 sec in step of 0.05 sec
From 3.00 to 10.0 sec in step of 0.50 sec

Number of self-reclosing :
From 1 to 10 times in step of 1
Reclosing time delay : From 1 to 999 sec in step of 1 sec
Automatic reset time : From 1 to 999 min in step of 1 min

AUXILIARY SUPPLY
Supply voltage : 198 ~ 265 V AC / 90 ~ 120 V AC
Rated frequency : 50 or 60 Hz
VA rating : 3 VA typical

INPUTS
External Test / Reset Inputs : N.O. dry contact

CONTACTS
Contact arrangement : Change-over
Contact rating : 6 A, 250 V AC ( cosj = 1) for tripping contact /5 A, 250 V AC ( cosj = 1) for alarm contact Contact material : Silver alloy
Operating time : 15 ms max.
Expected electrical life : 100,000 operations at rated current
Expected mechanical life : 5 million operations
Approval : UL /CSA, VDE, TUV, SEMKO

INDICATORS
Auxiliary supply : Green colour LED indicator
Time delay : Red colour LED indicator
Trip : 7-segment LED and red colour LED indicator
Real-time leakage current : 7-segment LED

ZERO - PHASE CURRENT TRANSFORMER
To operate with ZCT series of current transformer

MECHANICAL
Mounting method : Panel mounting
Front panel : Standard DIN 96mm x 96mm
Approximate weight : 0.8 kg ( excluding ZCT )

Ordering Information
MK330 - 240A With 240 V AC, 50 Hz power supply
MK330 - 110A With 110 V AC, 50 Hz power supply