Rezistențe tubulare cu fir înfășurat FW

Rezistențe tubulare cu fir înfășurat FW

Construction and execution
The FW pipe resistors consist of a ceramic tubular body on which a coil of resistive wire in Constantan or NiCr steel is wound and are supplied as standard with the side mounting brackets. The FW resistors can also be supplied in groups of 2 or 3 elements (starting from the FW30 version) and for models starting from FW 40 the units are also available with an optional protection grid. Other accessories, silicon resin surface and with clamps.

Features

Nominal power range: 12 W up to 3’000 W
Standard tolerance: K (±10%) (tighter tolerances on request)
Temperature coefficient: +40 ppm up to +80 ppm

Application fields

Starter resistors for compressors
Grounding resistors
Braking resistors (also for application under inverter)

Program of fabrication
Our standard production program contains 6 series.

Type
Tube Ø
mm
Tube length
mm
Power
W
Resistance
Sheet

 FW 15
15
 50-200
 12-60
R25-10K2
PDF

 FW 18
18
 75-200
25-80
 R21-12K3
PDF

 FW 22
22
80-200
35-100
R28-15K
PDF

 FW 30
30
 100-200
50-125
R14-18K8
PDF

 FW 40
40
120-400
80-400
R151-28K2
PDF

FW  60
60
300-500
450-800
R72-53K
PDF

Documents accompanying