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Features
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25-500 amps, 500Vac, max.
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Three or four wire loads
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Selectable control and firing modes
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Resistive and inductive loads
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| The TC3000 SCR assembly is a general
purpose three phase power controller for all constant resistance or inductive
loads up to 500A/500Vac. The TC3000 fires evenly on all phases to match
the load to the generator supply. Three wire star or delta, four wire star
with neutral and six-wire inside delta load configurations can be controlled.
Resistive load firing modes include logic firing for action as a solid
state contactor, single cycle for special applications, fast cycle for
quick acting heaters and slow cycle for large loads. Phase angle firing
is available |
for inductive loads. Inputs are
logic or analog. The TC3000 is phase rotation insensitive. The unit is
shrouded in a protective cover with commissioning and diagnostic points
available on the front. Protective measures include built-in high speed
fuses with optional fuse-fail microswitches, snubbers and varistors and
SCR quenching action on any of several operational alarm conditions. Cooling
at 100A and up is by fans, with over-temperature shutdowns. It may be used
with the model 260 Diagnostic Unit. |
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TECHNICAL SPECIFICATIONS
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Dimensions (mm): |
25 to 250A; |
480H x 248W x 268D;
16kg |
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(250A:18kg) |
|
300 to 500A: |
570H x 373W x 268D;
21kg |
| Operating temperature: |
|
0°C to 45°C |
| Mounting: |
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Panel mounting |
| Load type: |
|
Resistive or inductive |
| Inputs: |
DC voltage: |
0 to 5V, 1 to 5V, 0
to 10V or 2 to 10V, |
|
|
impedance
100Kž |
|
DC
current: |
0 to 20mA or 4 to 20mA,
impedance 100ž |
|
Logic: |
5V, 10V,
20mA (>50% ON : <25% OFF) |
|
|
input impedance as above |
| Firing mode: |
|
Logic, phase angle and
fast cycle, |
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slow cycle and single
cycle |
| Control mode: |
|
V2, external measurement
or open loop |
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