THYRISTOR REGULATORJU SERIESJU series small and lightweight thyristor
regulators for single-phase loads arecharacterized with high panel installation
density.
Two control systems, a phase-angle firing
system and a zero-cross firing system, are built
in and can be changed by remote contacts
signal.
In the phase-angle firing system, feedback
types of voltage, current and power, andno-feedback type are selectable depending on
heating characteristics of heaters.
Three kinds of input signals, 4 to 20mADC, 1 to5VDC and ON-OFF contact signal, can bechanged by terminal connections. Options ofheater disconnection alarm function andcurrent limit function are available.
The rapid fuse is built in all models and thecurrent transformer built-in type is alsoavailable.
By the option setting unit (with communication
function), it can be connected to the higher
instruments such as PC and PLC (signalconverter may be required) and centralize
control the setting value and data up to 31
units.
 FEATURES
 Compact structure
Compact, lightweight and high panel installation
density.
 Options
The options of heater disconnection alarmfunction and current limit function are available.

 Setting unit (option)
Display of various parameters, voltage/current/
power and change of the feedback system arepossible. By using communication function,
various settings value can be changed from thehigher side instruments or send various data to
the higher side.

 Phase-angle firing/zero-cross firing
The phase-angle firing system and thezero-cross firing system are switchable.*1 The
running by the phase-angle firing system at theinitial stage and by the zero-cross firing system atthe normal stage is possible.

 Various protections functions built-in
The thyristor element is protected by melting of
the rapid fuse for short-circuit of load, and bygate-off for over-current. For models with acooling fan built-in, alarm is activated and output
is stopped for abnormal heat-sink temperature.

 Zero-cross firing system
With the delta-sigma modulation, which controls
every 1 cycle, the fine control like thephase-angle firing system is possible.

 Self-diagnosis function built-in
The self-diagnosis function is built in for abnormal
operation, abnormal thyristor element andabnormal power supply.

*1If the model is without setting unit and with heater disconnection
alarm or the heater is SiC heater then it is not applicable.

1PSE-316B

 MODELS
JU         Power supply
10: 100V
11: 110V
12: 120V
20: 200V
40: 400V 44: 440V
99: Others
Rated current
010: 10A 020: 20A
030: 30A 050: 50A
200: 200A 250: 250A 300: 300A 400: 400A
Control system/feedback type

22: 220V 24: 240V

38: 380V

075: 75A 100: 100A 150: 150A
55500: 500A 750: 750A* X00: 1000A*

V: Phase-angle firing ∙ voltage feedback / Zero-cross firing
A: Phase-angle firing ∙ current feedback / Zero-cross firing
W: Phase-angle firing ∙ power feedback / Zero-cross firing
N: Phase-angle firing ∙ no-feedback * / Zero-cross firing
C: Zero-cross firing
Rapid fuse
A; Built-in N: Not provided
Setting unit (option)
2
0: Not provided 1: Provided (installed to unit)
2: Provided (panel installation) *3: Provided (with communications, installed to unit),2
4: Provided (with communications, panel installation) *CT (current transformer) function (option)0: Mounted externally (rated current 10 to 1000A, standard)
1: Built-in (rated current 10 to 75A only)
Other functions (option)
3
0: Not provided
1: Heater disconnection alarm *4
2 : Current limit * 3: Heater disconnection alarm + current limit (with setting unit only)1*1: For no-feedback types, then the heater disconnection alarm, current limit and setting unit cannot be added.
*2: For the panel installation type setting unit, the exclusive cable SH-JUK3 (3m) or SH-JUK5 (5m) is required separately.
*3: For models without setting unit and with heater disconnection alarm, or if the heater is SiC heater then the phase-angle firing system and thezero-cross firing system cannot be switched.
*4: For models with current limit, the zero-cross firing system cannot be combined.
*5: 750A and 1000A is built to order product.

 SPECIFICATIONS
Output accuracy:
No-feedback … Within ±10% of rated voltage
Voltage feedback … Within ±3% of rated voltage (at ±10%fluctuation of rated voltage)
Current feedback … Within ±3% of rated current (at 1 to 10 times
variation of load resistance)
Power feedback …Within ±3% of rated voltage (at 1 to 3 times
variation of load resistance, at ±10% fluctuation of ratedvoltage)* Performance guarantee is 0 to 50ºC
Applicable load:
Resistive load, inductive load (primary side control of transformer,
flux density 1.2T or lower, phase-angle firing system only)
Minimum load current:
0.5A or more (at 98% output of rated voltage)
Alarm:
Over-current (on built-in or external CT), rapid fuse melting (30A ormore),
Heat sink abnormal over-heating (200A or more) …
LED lights and alarm contact output 1 is ON.
Abnormal thyristor element, abnormal operation, heater
disconnection …
LED blinks and alarm contact output 2 is ON.
* No-feedback types … Only abnormal operation and abnormal
power supply, no alarm contact
Alarm contact output: 2 points, maximum 250VAC, 1A
Over-current protection: Thyristor gate-off (120% or more of rated
current, on built-in or external CT)
Heater disconnection is protected by melting of built-in rapid fuse(built-in type only).
Cooling system:
Natural cooling for 150A or less of rated currentBuilt-in cooling fan for 200A or more
Other functions: Soft-start, soft-up/down (1 to 20 seconds), soft-start at
power failure recovery
Weight: About 2kg for 10A, 20A, about 3kg for 30 to 75A,about 6kg for 100 to 150A, about 7kg for 200 to 250A,
about 12kg for 300 to 500A, about 35kg for 750A,
about 37kg for 1000A

Phase: Single-phase
Rated voltage: 100, 110, 120, 200, 220, 240, 380, 400, 440VAC (to bespecified)
Rated current: 10, 20, 30, 50, 75, 100, 150, 200, 250, 300, 400, 500,750, 1000A (to be specified)
Allowable voltage fluctuation range: ±10% of rated voltage
Rated frequency: 50/60Hz (automatic change)
Allowable frequency fluctuation: ±2Hz of rated frequency (±1Hz forperformance guarantee)
Working temperature range: -10 to 55ºC (load current will decrease if
50ºC or higher)
Working humidity range: 30 to 90%RH (no dew condensation)
Insulation resistance: 50MΩ or larger at 500VDC (between power
terminals and ground terminal)
Dielectric strength:
1 minute at 2000VAC (rated voltage 100 to 240V)
1 minute at 2500VAC (rated voltage 380V or higher)
Output control system: Phase-angle firing system and zero-crossfiring system (selectable on models)
Feedback type: Voltage, current, power or no-feedback
Input signal: Selectable on terminals of 4 to 20mADC (internalresistance 100Ω), 1 to 5VDC (internal resistance 25kΩ), ON-OFF
contact signal, and Resistance signal (10kΩ, manual)Ramp setting: By built-in variable resistor (0 to 100% of output range)
or external variable resistor (10kΩ)
Elevation setting: By built-in variable resistor (0 to 100% of outputrange) or external variable resistor (10kΩ)
Built-in variable resistor cannot be used for models without thesetting unit and with optional heater disconnection alarm.
Soft-start time setting: 1 to 20 seconds
Running/stop selection: By contact signal
Phase-angle firing system/zero-cross firing system selection:
By contact signal
External CT input: 0 to 5A for full scale of rated current
Models with built-in CT are available in 75A or lower.
Output range:
No feedback………0 to 98% of rated voltage
Voltage feedback…0 to 98% of rated voltage
Current feedback…0 to 100% of rated voltage
Power feedback…. 0 to 98% of rated voltage x
0 to 100% of rated voltage

2 DIMENSIONS
 10A, 20A

 750A

Setting terminal M3

Setting terminal M3

 30A to 75A
Earth terminal M6

Main power terminal M16

 1000A 100A to 250A
Setting terminal M3
Setting terminal M3

Earth terminal M6

Main power terminal M16

 300A to 500A

 Setting unit

Unit: mm3 OPTIONS (not applicable for no feedback type) Setting unit
Setting: Output (0 to 100%), high/low limits (0 to 100%), ramp
setting (0 to 100%), soft-start time setting (1 to 20 seconds),
heater disconnection alarm setting (load resistance 0 to 100%,
available in models with heater disconnection alarm only),phase-angle firing system/zero-cross firing system selection,
feedback system selection, current limit)
Display: Output value (voltage, current, power), heater resistancevalue, alarm, parameters
Communication: RS422A/RS485 MODBUS protocol (varioussetting, output display, alarm display, heater disconnection alarm
setting is available)
Installation: Installed to thyristor unit or panel [by exclusive cable ofSH-JUK3 (3m) or SH-JUK5 (5m) between thyristor unit andsetting unit]

Power supply: Supplied from thyristor unit
Working temperature: -10 to 55ºC
Working humidity: 30 to 90%RH (no dew condensation)
Weight: About 50g
 Heater disconnection alarm
Detects the heater disconnection by built-in or external CT. Whendisconnection is detected, LED blinks and alarm contact output
becomes ON. The switching of phase-angle firing system/zero-cross firing system is not possible without setting unit. Also notapplicable for SiC heater.
 Current limit
Sets the maximum limit of the load current (detected by built-in or
external CT. The combination with zero-cross firing system is notpossible.

 ACCESSORIES RAPID FUSE

 Setting unit
ModelVL-JAL

PurposeSpecifications

Ramp setting
Manual setting
High/low limits setting
Elevation setting
Current limit setting

Variable resistor 10kΩVL-JAM1N:
0 to 150V
VL-JAM2N:
0 to 250V
VL-JAM4N:
0 to 500V

Output indicator
Ramp/manual setting
Combined with selector switch

1: Voltage indicator
0 to 150V
2: Voltage indicator
0 to 250V
4: Voltage indicator
0 to 500V
Variable resistor 10kΩ,2kΩ

VL-JAL is consisted of variable resistor, scale and knob.
VL-JAM series output indicator can be used for phase angle firing only.

 VL-JAL

ModelRated
current

100/200V line

400V line

10A

350KH-15

600KH-15

20A

350KH-30

600KH-30

30A

250GH-50S

660GH-50S

50A

250GH-75S

660GH-80S

75A

250GH-100S

660GH-100S

100A

250GH-160S

660GH-160S

150A

250GH-200S

660GH-200S

200A

250GH-315S

660GH-315S

250A

250GH-350S

660GH-350S

300A

250GH-450S

660GH-450S

400A

250GHW-630S

660GH-630S

500A

250GHW-710S

660GH-710S

750A

50SRF1000S

50SRF1000S1000A

50SRF1250S

50SRF1250S

 EXCLUSIVE CABLE(between thyristor unit and setting unit)
Model

Specification

SH-JUK3

Length: 3m

SH-JUK5

Length: 5m

 TERMINAL COVER(for main circuit)
Model
SH-JUR500

 VL-JAMNSpecification
For 300 to 500A

SH-JUR1000
For 750A, 1000A
Note:
The terminal cover is attached for 10 to 75A.
The thyristor unit cover serves as the terminal
cover concurrently for 100 to 250A.
The thyristor unit cover serves as the setting
terminal cover concurrently for 300 to 500A.
The setting terminal cover is attached for 750A
and 1000A.
Weight: About 700g
Unit: mm

Specifications subject to change without notice. Printed in Japan (I)32-8, KUMANO-CHO, ITABASHI-KU, TOKYO 173-8632
PHONE: +81-3-3956-2171
FAX: +81-3-3956-0915
E-mail: inter@chino.co.jp
Website: http://www.chino.co.jp

42016.11