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7.1 Load circuit
7.2 Control
7.3 General data
Power units 05.01
Nominal load voltage
(supply voltage for control electronics = nominal load voltage)
Continuous load
current I
L
Load types
Current limiting
With phase-angle control, the load current can be adjusted over the range
Fusing
TSE circuit
Power loss
Control accuracy
Control signal
Input signal
attenuation
Circuit variants
- single-phase operation
- star circuit with accessible star point
- open delta circuit
- economy circuit using master-slave principle and subsidiary V
in burst-firing operation
- free-running economy circuit (star or delta) only with subsidiary P control
in burst-firing operation
Operating modes
- phase-angle control for resistive and transformer loads, with soft start
(with current limiting for extra codes TR, TO)
- burst-firing operation for resistive or transformer load
Features
Two single-phase units can be linked to form an economy circuit for burst-firing
operation.
- free-running economy circuit for resistive loads
- master-slave economy circuit for resistive and transformer loads
Subsidiary control
types
With extra code TR or TO: free choice of V
24V-20%/+15% AC 45 — 63Hz
42V-20%/+15% AC 45 — 63Hz
115V-20%/+15% AC 45 — 63Hz
230V-20%/+15% AC 45 — 63Hz
265V-20%/+15% AC 45 — 63Hz
400V-20%/+15% AC 45 — 63Hz
460V-20%/+15% AC 45 — 63Hz
500V-20%/+15% AC 45 — 63Hz
25A, 50A, 75A, 100A, 150 A, 250A
resistive and resistive-inductive loads (B ≤ 1.2 Tesla)
10 — 100% I
by a trimmer on the front panel.
N
The limiting is based on the rms value of the load current.
super-fast semiconductor fuse
RC network as standard
Supply voltage fluctuations within the tolerance range (-20%/+15%)
are accurately compensated.
Fluctuations ≤ 0.5%.
0 (4) — 20 mA
0 (2) — 10 V
0 (1) — 5 V
0/10V (0/5 V)
0/20mA
manual control by an external 5 kΩ potentiometer
adjustment range 100 — 20%
2
V
control as standard.
7 Technical data
≈ 1.3V x I
(A)
L
= 50 Ω
R
I
R
= 25kΩ
I
R
= 12kΩ
I
R
= 12kΩ
I
R
= 50Ω
I
floating contact
or
2
2
, P , I
control via internal switches.
2
control
51
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