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ARMA

T

Basic information about product

The module of auxiliary contacts of the ARMAT series of the IEK trademark 

(hereinafter referred to as 

 MVK) is designed for switching of the control circuits 

and signaling of AC and DC when the switching state of the main contacts changes. 
MVK is a module that is latched on the left side of the modular ARMAT series 
equipment.

The state contact serves to obtain information about the state of the circuit 

breakers.

The MVK correspond to the requirements LVD Directive No. 2014/35/EU and 

RoHS 2011/65/EU.

The switched contact is a two-in-one product: a mechanical switch allows 

selecting between two pairs of contacts, AS (alarm c state contact) 

 alarm 

c state contact or 2S (two state contacts) 

 two state contacts. To simulate 

emergency operation, turn the test handle towards the control.

The emergency contact serves to signal the position of the circuit breaker 

cocking mechanism. Switching of contacts occurs only when the breaker operates 
from overloads or short circuits. To simulate an emergency operation, turn the test 
handle towards the control unit.

Record of MVK when ordering and in the documentation of another product:

MODULE OF AUXILIARY CONTACTS 
OF 

À

RMAT SERIES

Operation manual

2

3

4

5

6

7

8

Specifications and operating conditions

– checking the reliability of fastening to the switch;

If you have any claims during the warranty period, contact the seller or 

organization:

– removal of dust and dirt;

Transportation of MVK is allowed by any type of covered transport in the 

manufacturer's packaging, ensuring the protection of the packed MVK from 
mechanical damage, pollution and moisture at temperatures from minus 40 

°

Ñ

to plus

 

55 

°

Ñ

.

Maintenance 

When inspection, the following actions are carried out:

– performance check as part of the equipment when checking it for 

functioning in operating modes.

Warranty period of MVK – 10 years from the date of sale to the consumer, 

under observance of that the consumer meets the requirements of transportation, 
storage and operation.

– tightening the screws of the terminals;

Disposal of products is carried out by transferring MVK to specialized 

organizations.

Service life of MVK – 15 years.

Under normal operating conditions, it is necessary to inspect the MVK once 

a year. Regardless of this, an inspection of the release should be carried out after 
each interruption of the short-circuit current by the circuit breaker.

Service life and manufacturer's warranty  

Transportation, storage and disposal

Storage of MVK is carried out only in the manufacturer's packaging in rooms 

with natural ventilation at an ambient temperature of minus 25 

°

Ñ

 to plus

 

55 

°

Ñ

 and 

relative humidity of no more than 90 % at a temperature of 20 

°

Ñ

. Storage is 

allowed at 50 % relative humidity and 40 

°

C.

Electric schematic diagrams of MVK

 

Overall and mounting dimensions of MVK

All installation and maintenance work should be carried out in de-energized 

state.

The operation of the MVK should be carried out in accordance with the «Rules 

on design of power electric installations», «Rules of technical operation of electric 
installations of consumers» and «Interindustry labor safety rules (safety rules) for 
the operation of electric installations». 

Installation

Safety precautions

To use MVK when formation of cracks or chips on the case during operation.

IT IS FORBIDDEN

Before installation, you must familiarize yourself with the operation manual of 

the product with which the MVK will be docked.

 

– MVK – 1 pcs.;

Completeness of set

– ðassport – 1 copy.

Òhe delivery package includes:

Version 

3

Record of MVK when ordering and in the documentation of another product

Item

ARMAT state contact AR-AUX 240...415 V IEK

AR-AUX-SC-240-415

ARMAT emergency contact AR-AUX 240...415 V IEK

AR-AUX-AC-240-415

ARMAT switched contact AR-AUX 240...415 V IEK

AR-AUX-DC-240-415

Switching mode 

of MVK

 

Kind of current

Utilization ategory

Voltage, V

Current

, À

AC

ÀÑ-12

240

6

415

3

DC

DC-12

48

2

130

1

11

91

11

12

92

12

14

94

14

24

22

21

91

94

92

14

12

11

or

State contact

Emergency contact

Emergency contact

Switched contact

Switched contact

 9 max 

 13,3 max 

 81,5 max 

 35,5 max 

 23 

 43,7 

 45 max 

 63,7 

 70,3 max 

 5,5 

Test

Emergency activation 

 

indicator

 81,5 max 

 9 max 

 13,3 max 

 45 max 

 70,3 max 

 63,7 

 43,7 

 5,5 

 35,5 max 

 23 

State contact

 9 max 

 13,3 max 

 81,5 max 

A

Position indicator of mechanical 

 5,5 

 43,7 

 63,7 

 23 

 45 max 

 35,5 max 

 70,3 max 

Emergency activation 

Test

indicator

A

Mechanical 

switch

switch

SD

OF

Connect MVK to the circuit breaker, RCBO, RCCB, Shunt Release (hereinafter 

referred to as 

 the main device) in the following sequence:

– insert the upper hook of the MVK into the upper groove of the main device;
– turn the MVK counterclockwise until the pin and protrusions in the handle 

and sidewall are aligned with the holes of the main device. Press the MVK firmly to 
the main device and the MVK latch, aligning with the upper groove of the main 
device, will fix in it;

– after connecting, turn on the main device. The handle should be clearly fixed 

in the on position "I", and the indicator of the circuit breaker, RCBO, RCCB should 
be red.

Docking of no more than two devices is allowed.

– move the handles of all devices to the off position;

Parameters

Value 

– of DC

– of AC with frequency of 

50/60

 Hz

Rated voltage, Ue, V

240…415 
24…130

Utilization category

DC-12, ÀÑ-12

Rated insulation voltage, V

415

Conventional thermal current Ith, 

À

Rated impulse withstand voltage, kV

4

Degree of protection according to IEC 60529

IP20

Mechanical wear resistance, ON-OFF cycles

20000

2

Cross section of connected conductors, mm

1

2,5

Types of compatible circuit breakers

ARMAT

Ñonnection to the circuit breaker

left-handed

Repairability

none repairable

Operation mode

maintained

Tightening torque for terminal screws when using a screwdriver, N

Ч

m, maximum

0,8

Weight, kg, maximum

0,045

Operating temperature range, 

°

Ñ

From minus 40 up to 

plus

 70

– at 40 

°

Ñ

Relative air humidity, %:

– at 20 

°

Ñ

50

90

Base altitude, m

Ј

 2000

Operation position 

any

1

AS

 

position

2S position

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