Alpha

ALUMINIUM HOUSED COMPACT BRAKE RESISTORS

These resistors are insulated and can easily be mounted in compact constructions. They are specially constructed for high pulse loads compared to the average load. The nominal load can be improved by forced air cooling or by mounting the resistors on a heat sink.

The resistor elements are wire wound on mica support sheets. Lower ohmic values are however made with helix wound elements mounted in a ceramic support part. The outer housing is an aluminum profile isolated with micanite sheets on all inner surfaces. The resistor elements are fixed symmetrical in the profile by the mica construction. This ensures a symmetric expansion of the resistors and a maximum stability to high load impulses. The aluminum profile with the fixed resistor element is filled with quarts sand.  This ensures a minimum change of the resistor surface temperature even if the resistor element reaches its maximum temperature during a pulse load. If higher protection classes are required please use our CCR, CBR or CBT resistors. The highest protection class is IP65 / Type 4X, and the power range is up to 6 kW.

CAH/CAV

Nominal Load: steady state 55W - 190W
 
Pulse Load: 40s/120s: 170W - 550W
10s/120s: 500W - 2.3kW
5s/120s: 890W - 4.3kW
1s/120s: 2.5kW - 14 kW

 CBH/CBV

Nominal Load: steady state 110W - 330W  
Pulse Load: 40s/120s: 330W- 1000W
10s/120s: 1000W - 4.5kW
5s/120s: 1800W - 8.3kW
1s/120s: 5.5kW - 25 kW

 CCH - Flat Pack CCH

Nominal Load: steady state 110W - 330W  
Pulse Load: 40s/120s: 330W- 1000W
10s/120s: 1000W - 4.5kW
5s/120s: 1800W - 8.3kW
1s/120s: 5.5kW - 25 kW

IP50 - IP65, Silicone free
Best model for mounting on Heat Sinks

 

CDH - Flat Pack CCH

Nominal Load: steady state 110W - 205W  
Pulse Load: 40s/120s: 330W- 615W
10s/120s: 1.3kW - 2.4kW
5s/120s: 2.5kW - 4.9kW
1s/120s: 4.0kW - 8.0kW

 CAR - the smallest large surface profile

Nominal Load:  
Cable Conn; Steady state: 100W - 350W
Conn. Box Steady state: 100W - 335W
Pulse load,
Cable connections
40s/120s: 280W - 950W
10s/120s: 1.2kW - 4.2kW
5s/120s: 2.3kW - 7.6kW
1s/120s: 7kW - 25 kW

ALPHA DIN Rail mounting

Small resistor types from the CAR, CBR and CCR
lines can be mounted easily on DIN Rails.
 
Resistors mounted this way can be used as
Dehumidifier Elements

CBR - the medium sized large surface profile

Nominal Load:  
Cable Conn; Steady state: 220W - 1700W
Conn. Box Steady state: 280W - 1290W
Pulse load,
Cable connections
40s/120s: 660W - 4.3kW
10s/120s: 2.2kW - 17kW
5s/120s: 4.0kW - 30kW
1s/120s: 13kW - 100kW

CCR - the original, medium sized large surface profile

Nominal Load:  
Cable Conn; Steady state: 185W - 1045W
Conn. Box Steady state: 140W - 790W
Pulse load,
Cable connections
40s/120s: 550W - 4.5kW
10s/120s: 1.2kW - 11kW
5s/120s: 2.5kW - 14kW
1s/120s: 4.5kW - 43kW

IP20, IP50, IP65; silicone free.

 

CBT - the most powerful large surface profile

Nominal Load:  
Cable Conn; single profile
Steady state:
500W - 3200W
Conn. Box two profiles
Steady State:
2800W - 5500W
Pulse load,
Cable connections
one profile
40s/120s: 1.25kW - 9.5kW
10s/120s: 4.2kW - 32kW
5s/120s: 7.6kW - 57kW
1s/120s: 25kW - 190kW

IP20, IP50, IP65; silicone free.