Solid state starter, Jksss4+ series – Toshiba XT JK Series User Manual
Page 3

Toshiba's JKSSS4 series complies with EEMAC,
NEMA, UL and CSA standards and is available in
non-reversing and reversing, multi-speed, synchro-
nous and wound rotor configurations.
The JKSSS4 series is available in the following
enclosed ratings:
360 Amps Max.
2300-6900 Volts
Short Circuit & Withstand Capability
Approximate Maximum Horsepower Based on Continuous Current
SOLID STATE STARTER
JKSSS4+ Series
z
Electronic Overload:
Retentive Thermal Memory
Dynamic Reset Memory
z
Phase Imbalance/Single Phase
z
Short Circuit
z
Ground Fault - Optional
z
RTD Temperature
z
Phase Reversal/Phase Sequence
z
Overcurrent
z
Starts-per-Hour
z
Shorted SCR
z
Undercurrent/Loss of Load
z
Starter Overtemperature
z
Shorted SCR
z
Undervoltage
z
Overvoltage
Protective Features
Continuous Current
Enclosure Type
Max. Continuous Amps*
90" One-High Controller
Type 1 Ventilated
360A
Type 12 Ventilated w/
Fans & Type 12 Filters
310A
Type 1 Non-Ventilated
300A
Type 12 & 3R
300A
Interrupting
Capacity
(Symmetrical
Amperes)
Interrupting
Capacity
(Symmetrical
MVA)
Short Time
Capability
30 Seconds
(Amperes)
Short Time
Capability
1 Second
(Amperes)
Dielectric
Withstand
1 Minute
(kVAC)
Impulse
Voltage
Withstand
(kV)
50,000
@ 2.3 - 6.6 kV
200 @ 2.3 kV
350 @ 4.0 kV
400 @ 4.6 kV
570 @ 6.6 kV
2400
6000
18.2
60
2300V
4200V
6600V
0.8 PF 1.0 PF
0.8 PF 1.0 PF
0.8 PF 1.0 PF
360
1500 1750
1500
2500 3000
3000
4000 5000
4500
320
1250 1500
1250
2250 2500
2500
3500 4000
4000
300
1000 1250
1000
2000 2500
2250
3000 3500
3500
Synchronous
Motors
Induction
Motors
Enclosed
Maximum
Continuous
Current
(Amperes)
Maximum Horsepower at Utilization Voltage
Synchronous
Motors
Induction
Motors
Synchronous
Motors
Induction
Motors
If UL or CUL is required,
specify when ordering.
Consult Factory for
applicable models and
options.