Hitachi SJ300 Series Manuale utente
SJ300 Dynamic Braking Selection Chart
1/2 to 15 hp (0.4 to 11 kW)
Voltage
Class Model Number Motor hp
Braking
Unit
B
ra
ki
ng
Torque @
60 Hz
(Without
External
Resistor)
(%)
External
Resistance
(ohms)
Braking Torque
@ 60 Hz (%)
Minimum
Resistance
(ohms)
Maximum
Braking
Duty
Cycle (%)
Minimum
Resistance
for 100%
Braking
Duty Cycle
(ohms)
SJ300-004LFU 1/2 Built in 50 50 200 50 10 150
SJ300-007LFU 1 Built in 50 50 200 50 10 150
SJ300-015LFU 2 Built in 50 35 200 35 10 100
200 SJ300-022LFU 3 Built in 20 35 160 35 10 100
SJ300-037LFU 5 Built in 20 35 100 35 10 100
SJ300-055LFU 7.5 Built in 20 17 80 17 10 50
SJ300-075LFU 10 Built in 20 17 80 17 10 50
SJ300-110LFU 15 Built in 10 17 70 17 10 50
SJ300-007HFU 1 Built in 50 100 200 100 10 300
SJ300-015HFU 2 Built in 50 100 200 100 10 300
SJ300-022HFU 3 Built in 20 100 200 100 10 300
400 SJ300-040HFU 5 Built in 20 100 140 70 10 200
SJ300-055HFU 7.5 Built in 20 70 100 70 10 200
SJ300-075HFU 10 Built in 20 70 100 50 10 150
SJ300-110HFU 15 Built in 10 70 70 50 10 150
With Optional External Resistor Minimum ResistanceInternal Resistor
SJ300 Dynamic Braking Selection Chart
20 to 200 hp (15 to 150 kW)
Voltage
Class Model Number Motor hp
B
ra
ki
ng
Torque
Without
External
Braking Unit
(%)
Applicable
External
Braking Unit
Model
Minimum
Resistance
(ohms)
Maximum
Braking
Duty Cycle
(%)
Mi
n
i
mum
Resistance
for 100%
Braking
Duty Cycle
(ohms)
Applicable
External
Braking Unit
Model
Minimum
Resistance
(ohms)
Maximum
Braking
Duty Cycle
(%)
Mi
n
i
mum
Resistance
for 100%
Braking
Duty Cycle
(ohms)
SJ300-150LFU 20 10 BRD-E2 17 10 46 BRD-E2-30K 4 20 6
SJ300-185LFU 25 10 BRD-E2 17 10 46 BRD-E2-30K 4 20 6
SJ300-220LFU 30 10 BRD-E2 17 10 46 BRD-E2-30K 4 20 6
200 SJ300-300LFU 40 10 BRD-E2-30K 2 20 4
SJ300-370LFU 50 10 BRD-E2-55K 2 20 4
SJ300-450LFU 60 10 BRD-E2-55K 2 20 4
SJ300-550LFU 75 10 BRD-E2-55K 2 20 4
SJ300-150HFU 20 10 BRD-EZ2 20 10 34 BRD-EZ2-30K 10 10 24
SJ300-185HFU 25 10 BRD-EZ2 20 10 34 BRD-EZ2-30K 10 10 24
SJ300-220HFU 30 10 BRD-EZ2 20 10 34 BRD-EZ2-30K 10 10 24
400 SJ300-300HFU 40 10 BRD-EZ2-55K 6 20 12
SJ300-370HFU 50 10 BRD-EZ2-55K 6 20 12
SJ300-450HFU 60 10 BRD-EZ2-55K 6 20 12
SJ300-550HFU 75 10 BRD-EZ2-55K 6 20 12
SJ300-750HFU 100 10 BRD-EZ2-55K 6 20 12
SJ300-900HFU 125 10 BRD-EZ2-55K 6 20 12
SJ300-1100HFU 150 10 BRD-EZ2-55K 6 20 12
SJ300-1320HFU 175 10 BRD-EZ2-55K 6 20 12
SJ300-1500HFU 200 10 BRD-EZ2-55K 6 20 12
SJ300 Dynamic Braking Resistor Selection Chart
200 V Class
Type (&
Quantity)
Total
Ohms
Total
Watts
Max. Duty
Cycle (%)
Type (&
Quantity) Ohms Watts
Max. Duty
Cycle (%)
Type (&
Quantity)
Total
Ohms
Total
Watts
Max.
Duty
Cycle (%)
SJ300-004LFU 120-3 50 120 1.5 300-1 50 300 7.5 200
SJ300-007LFU 120-3 50 120 1.5 300-1 50 300 7.5 200
SJ300-015LFU 120-4 35 120 1 400-1 35 400 7.5 200
SJ300-022LFU 120-4 35 120 1 400-1 35 400 7.5 160
SJ300-037LFU 120-4 35 120 1 400-1 35 400 7.5 100
SJ300-055LFU
120-4 x (2)
in parallel 17.5 240 1
400-1 x (2)
in parallel 17.5 800 7.5 HRB3 17 1200 10 80
SJ300-075LFU
120-4 x (2)
in parallel 17.5 240 1
400-1 x (2)
in parallel 17.5 800 7.5 HRB3 17 1200 10 80
SJ300-110LFU
120-4 x (2)
in parallel 17.5 240 1
400-1 x (2)
in parallel 17.5 800 7.5 HRB3 17 1200 10 70
HRB1 50 400 10 30
HRB2 35 600 10 35
HRB3 17 1200 10 60
HRB1 50 400 10 25
HRB2 35 600 10 30
HRB3 17 1200 10 50
HRB1 50 400 10 25
HRB2 35 600 10 30
HRB3 17 1200 10 45
(2) x HRB3 8.5 2400 20 110
(3) x HRB3 5.7 3600 20 150
(4) x HRB3 4.3 4800 20 200
(2) x HRB3 8.5 2400 20 90
(3) x HRB3 5.7 3600 20 130
(4) x HRB3 4.3 4800 20 170
(2) x HRB3 8.5 2400 20 80
(3) x HRB3 5.7 3600 20 110
(4) x HRB3 4.3 4800 20 150
(2) x HRB3 8.5 2400 20 55
(3) x HRB3 5.7 3600 20 80
(4) x HRB3 4.3 4800 20 110
(2) x HRB3 8.5 2400 20 45
(3) x HRB3 5.7 3600 20 65
(4) x HRB3 4.3 4800 20 90
(2) x HRB3 8.5 2400 20 35
(3) x HRB3 5.7 3600 20 50
(4) x HRB3 4.3 4800 20 75
(2) x HRB3 8.5 2400 20 30
(3) x HRB3 5.7 3600 20 40
(4) x HRB3 4.3 4800 20 60
SRB/NSRB Series HRB Series
SJ300-370LFU
SJ300-185LFU
SJ300-220LFU
SJ300-300LFU
JRB Series
SJ300-450LFU
SJ300-550LFU
Model Number
Available
Braking
Torque (%)
Braking Characteristics using the following Resistors in conjuction with
Braking Unit BRD-E2:
Braking Characteristics using the Following PARALLEL Resistor Combinations in conjuction with
Braking Unit BRD-E2-30K:
SJ300-150LFU
SJ300-185LFU
SJ300-220LFU
SJ300-150LFU
SJ300 Dynamic Braking Resistor Selection Chart
400 V Class
Type (&
Quantity)
Total
Ohms
Total
Watts
Max. Duty
Cycle (%)
Type (&
Quantity) Ohms Watts
Max. Duty
Cycle (%)
Type (&
Quantity)
Total
Ohms
Total
Watts
Max. Duty
Cycle (%)
SJ300-007HFU 120-2 100 120 1.5 200-2 100 200 7.5 200
SJ300-015HFU 120-2 100 120 1.5 200-2 100 200 7.5 200
SJ300-022HFU 120-2 100 120 1.5 200-2 100 200 7.5 200
SJ300-040HFU 120-2 100 120 1.5 200-2 100 200 7.5
HRB1 x (2)
in series 100 800 10 140
SJ300-055HFU
120-4 x (2)
in series 70 120 1
400-1 x (2)
in series 70 800 7.5
HRB2 x (2)
in series 70 1200 10 100
SJ300-075HFU
120-4 x (2)
in series 70 240 1
400-1 x (2)
in series 70 800 7.5
HRB2 x (2)
in series 70 1200 10 100
SJ300-110HFU
120-4 x (2)
in series 70 240 1
400-1 x (2)
in series 70 800 7.5
HRB2 x (2)
in series 70 1200 10 70
HRB1 x (2)
in series 100 800 10 40
HRB2 x (2)
in series 70 1200 10 60
HRB3 x (2)
in series 34 2400 10 110
HRB1 x (2)
in series 100 800 10 40
HRB2 x (2)
in series 70 1200 10 50
HRB3 x (2)
in series 34 2400 10 90
HRB1 x (2)
in series 100 800 10 35
HRB2 x (2)
in series 70 1200 10 45
HRB3 x (2)
in series 34 2400 10 80
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 190
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 200
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 170
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 200
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 150
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 200
JRB Series SRB/NSRB Series
Braking Characteristics using the Following SERIES/PARALLEL Resistor Combinations in conjuction with
Braking Unit BRD-EZ2-30K:
SJ300-150HFU
SJ300-185HFU
SJ300-220HFU
SJ300-150HFU
HRB Series
Model Number
A
vailabl
e
Braking
Torque
(%)
Braking Characteristics using the following SERIES Resistor Combinations in conjuction with
Braking Unit BRD-EZ2:
SJ300-185HFU
SJ300-220HFU
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 110
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 170
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 90
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 150
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 70
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 120
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 60
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 100
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 45
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 70
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 40
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 60
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 30
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 50
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 25
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 40
HRB4 x (4)
(2) parallel
(2) series 17 3200 10 20
HRB3 x (6)
(3) parallel
(2) series 11.3 7200 10 35
SJ300-1320HFU
SJ300-1500HFU
SJ300–750HFU
SJ300-900HFU
SJ300-1100HFU
Braking Characteristics using the Following SERIES/PARALLEL Resistor Combinations in conjuction with
Braking Unit BRD-EZ2-55K:
SJ300-450HFU
SJ300-550HFU
SJ300-300HFU
SJ300-370HFU
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