LIghtIng ChokeS
Lighting and debuzzing Chokes
• Precision wound heavy-duty toroidal inductors
• Rugged design
• 120 volt models from 12.5 to 100 Amps
• 240 volt models from 8.3 to 60 Amps
• High quality noise rejection filter
• Ideal for lighting dimmers, EMI/RFI filters, PWM and
PM circuits primarily for motor controls, UPS Systems,
differential mode line filters
typical dimmer Circuits for Single &
Multi-Lamp Loads
I= Load current
TR= Time taken for current to rise from 10% to 90% of its peak value
This factor and the rate of the current rise (slew rate) * determine the amount of
noise reduction in the lamp
Vd= Voltage drop due to choke. (See circuits 1 and 2)
Tr= Approximate temperature rise (convection cooled)
L= Low level inductance
+15
-7.5%
Vp= Primary side of transformer T-1
Vs= Secondary (Low voltage side) of transformer T-1
VL= Voltage seen at the load (Lamps)
Vd=Voltage drop due to choke (Vd= Vs-VL)
L1.L2.L3.L4, etc. + Debuzzing chokes. May or may not be the same type. **
*Foot mounting may be cut iff at factory or in the field and the center mounting
hole he used only.
Architectural Lighting debuzzing Chokes
Part No.
101425-119091
1328-118100
Lamp
Voltage
12
120
12
120
12
120
12
120
12
120
12
120
12
120
12
120
l (Amps)
4.167
4.167
4.167
4.167
4.167
4.167
6.25
6.25
4.167
4.167
4.167
4.167
4.167
4.167
6.25
6.25
Load
(Watts)
50
500
50
500
50
500
75
750
50
500
50
500
50
500
75
750
Tr (µS)
500
67
1060
157
1070
128
1070
134
1100
134
1250
156
1300
154
1300
161
Vd (Volts)
0.625
0.458
0.798
0.601
0.588
0.473
0.972
0.719
0.732
0.597
0.828
0.617
0.669
0.514
1.12
0.785
Tr (°C)
69
69
56
56
44
44
75
75
52
52
57
57
43
43
74
74
DCR
(Ohms)
0.11
0.11
0.14
0.14
0.11
0.11
0.11
0.11
0.14
0.14
0.14
0.14
0.12
0.12
0.12
0.12
L (mH)
1.38
1.38
1.51
1.51
1.15
1.15
1.15
1.15
1.25
1.25
1.56
1.56
1.33
1.33
1.33
1.33
Wire Ga.
19
19
18
18
17
17
17
17
18
18
18
18
17
17
17
17
Figure
1
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
1
161859-117120
161859-118125
1618-118127
162359-117115
+1 814.474.1571 • eis.apitech.com/magnetics
Inductors
APITECH [ API Technologies Corp ]
