Mikro MK201A User Manual

MK201A DT Earth Fault Relay User's
Guide
A BRIEF OVERVIEW
a
b
c
d
h
g
f
e
a - Auxiliary power supply indicator
b - High-set start/trip status indicator
c - Low-set start/trip status indicator
d - Earth-fault high-set adjustment
e - Trip reset button
f - Test button
g - Earth-fault low-set adjustment
h - Delay time adjustment

Mikro MK201A Specifications

General

Brand	Mikro
Model	MK201A
Category	Relays
Language	English

Summary

Brief Overview of MK201A Relay

Indicator Functions

Describes the function of the auxiliary power and start/trip status indicators.

Adjustment Controls

Details the controls for earth-fault current and delay time adjustments.

Operational Buttons

Identifies the TEST and RESET buttons on the relay.

Technical Data and Indicators

Current and Time Adjustments

Details on setting earth-fault current and time delay parameters.

Light Indicator Status

Explanation of system status indicated by LEDs (AUX, I>, I>>).

Operational Controls and Specifications

Push Button Operations

Describes the function and usage of the Reset and Test buttons.

Trip Contact R1

Details on the manual reset type trip contact (R1) and its activation.

Electrical and Mechanical Specifications

Covers supply voltage, frequency, VA rating, and physical dimensions.

Connection Diagram and Case Dimensions

Connection Diagrams

Illustrates wiring for earth fault and combined overcurrent/earth fault relays.

Case Dimensions

Provides physical dimensions and panel cutout information.