micaver®

Standard & Long Creeping Distance Micaver® Insulators

Highly resistant electrical insulators

Standard & Long Creeping Distance (also known as LCD or LLF) Micaver® Insulators are made with long time used lead-free Mica-glass composition. Mechanically and electrically robust, resistant to thermal shock, they are today the reference material for demanding applications such as in railway rheostatic brakes.

Main properties

Excellent vibration resistance and non-fragile behavior

As opposed to ceramic insulators, Micaver insulators are non-fragile and highly resistant to vibrations.

Resistant to thermal shock

Excellent resistance to thermal shocks from extreme winter temperature to high operating temperature (-40°C / +400°C).

Prevent most rusting issues

Standard Micaver insulators are commonly equipped with Nickel-plated Steel inserts. To further prevent most rusting issues in aggressive and salty enviroment, Micaver can also be offered with Stainless Steel 304L inserts which meet all the requirements of NF F 61-016.

Fire resistant

Micaver® insulators are classified A1 and therefore do not burn (EN45545-2).

Electrically insulating

Minimum insulation resistance of 1 TΩ.

Find your Micaver insulator

Product family
Height
Insert type
Insert material
Insert diameter
Creepage distance
Title Height (mm) Insert diameter (mm) Insert type Insert material Electrical rigidity (mn) Creepage distance (mm) Tensile strength (daN) Torsion resistance (daN.m) End flexural strength (daN) Datasheet
*MV 483B SS304L 50 10 FF Stainless Steel 304L 22 kV/50 Hz/1 min 97 ≥ 1900 ≥ 4.5 ≥ 400
MV 483B 50 10 FF Nickel plated 22 kV/50 Hz/1 min 97 ≥ 1900 ≥ 4.5 ≥ 400
MV 483A SS304L 50 12 FF Stainless Steel 304L 22 kV/50 Hz/1 min 97 ≥ 1900 ≥ 8 ≥ 400
MV 483A 50 12 FF Nickel plated 22 kV/50 Hz/1 min 97 ≥ 1900 ≥ 8 ≥ 400
*MV 322D SS304L 25 6 MF Stainless Steel 304L 12 kV/50 Hz/1 min 34 ≥ 800 ≥ 1.2 ≥ 160
MV 322D 25 6 MF Nickel plated 12 kV/50 Hz/1 min 34 ≥ 800 ≥ 1.2 ≥ 160
*MV 322C SS304L 25 8 MM Stainless Steel 304L 12 kV/50 Hz/1 min 34 ≥ 800 ≥ 2.3 ≥ 160
MV 322C 25 8 MM Nickel plated 12 kV/50 Hz/1 min 34 ≥ 800 ≥ 2.3 ≥ 160
*MV 322A SS304L 25 6 MM Stainless Steel 304L 12 kV/50 Hz/1 min 34 ≥ 800 ≥ 1.2 ≥ 160
MV 322A 25 6 MM Nickel plated 12 kV/50 Hz/1 min 34 ≥ 800 ≥ 1.2 ≥ 160
*Special minimum order quantity & lead-time. Please conctact us for further information.

Search tool details

Creepage distance

Shortest distance along the surface of the insulator between two conductive inserts.

Insert type

Micaver insulators are made with 2 inserts which are described by type.

FF: Female/Female

MF: Male/Female

MM: Male/Male

Applications

Related markets

 
Industrial
Industrial
Trains, metro and trams using Micaver
Railway