CHINO Works America Inc.

Thyristor Regulators

JB Series Single-Phase Thyristor Regulators
The JB series small and lightweight thyristor regulators for single-phase loads are characterized with high panel installation density. 6-models from 10A rated current to 100A rated current are available. Two control systems, a phase-angle firing system and a zero-cross firing system, are built.

TabView Example - Basic From Existing Markup

Compact and standalone, mounting space-saving, easy wiring.

Phase-angle firing/zero-cross firing can be selected according to applications, power source environment, etc.

Soft-start, soft-up/down and soft-start at power failure recovery for precise control0.

Automatic frequency judgment function, ramp setting function and low limit setting function are built-in.

Phase	Single-phase
Rated current	20, 30, 40, 50, 75, 100A (to be specified)
Rated voltage	100Ω to 120VAC, 200 to 240VAC (selectable by terminals)
Rated frequency	50/60Hz (automatic change)
Input signal	4 to 20mADC, 1 to 5VDC or ON-OFF contact signal (selectable by terminals)
Input resistance	100Ω (4 to 20mADC), 25 (1 to 5VDC)
Output range	0 to 98% of rated voltage
Minimum load current	0.5A (at 98% output)
Applicable load	Resistive load, inductive load (primary side control of transformer, flux density 1.2T or lower, phase-angle firing system only)
Control system	Phase-angle firing/zero-cross firing (selectable by internal dip switches)
Output setting range	Ramp setting (0 to 100%) Low limit setting (0 to 100%)
Over-current protection	Thyristor gate-off (120% or more of rated current, on built-in or external CT)
Other functions	Soft-start, soft-up/down (1 to 20 seconds), soft-start at power failure recovery
Dimension	H172 x W48 x D143mm (for 20A, 30A) H188 x W68 x D148mm (for 40A, 50A) H200 x W116 x D157mm (for 75A, 100A)
Weight	About 1.0kg for 20A and 30A, about 1.3kg for 40A and 50A, about 1.9kg for 75A and 100A

PS Sheet

JB series

PSE-297