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Type code
The type designation of the thyristor-power controller is derived from
the configuration of the power unit as well as from other features.
Thyro-A 1A Thyristor controller with single phase power unit,
suited for single phase loads
Thyro-A 2A Thyristor controller with two phase power unit, sui-
ted for symmetrical loads in three phase operation
in three phase saver circuit
Thyro-A 3A Thyristor controller with three phase power unit,
suited for three phase loads
Designation Characteristics Different version
(example) of the
power controller
Thyro-A 3A Three phase power controller with three
phase power unit
...400- with 400V type voltage 230V, 400V,
500V, 600V
...280 with 280A type current 16 ... 1500A
H with integrated semiconductor fuse
F with fan (from 280A types) *
R with signalling relay *
L with load monitoring *
P with additional power control
(H RLP) *
1 Identification Thyro-A, series *
Example:
Thyro-A 3A...H1
* device-specific
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