Altech CDL4U(E)LA, CDL4U(E)3LA Catalog Page
SURGE SUPPRESSOR
TERMINAL BLOCKS
In applications where circuit
protection against transient
overvoltage is required, Altech
Surge Suppressor Terminal
Blocks with built-in electronic
components are recommended.
These terminals are designed
to protect a single line against
a longitudinal (line / earth)
surge, thereby protecting distribution and inputs.
Terminal Width
Height x Length
Stripping Length
CDL4U(E)LA CDL4U(E)3LA
Lightning Arrestor 3 Pole Lightning Arrestor
12 mm
54 x 55.5 mm
9 mm
18 mm
54 x 55.5 mm
9 mm
Insulation Material
Type of Connection
Ratings
Wire Range
Voltage Rating
Nominal Discharge Current
Peak Current
ResponseTime
Nominal Current
Capacitance
Application
Terminal Block
End Plate
DIN Rail
for ordering information
refer to page 62
Polyamide 6.6
4 screw clamps
22-10 AWG
75, 90, 240, 600, 1000 V DC
20 KA (8/20 µs)
–
100 ns
10A
<1.5 pf
For coarse line protection of
measuring, distributing or data
communication interfaces.
Cat. No. Std. Pk.
CDL4U(E)LA* 20
EPCDL4U 50
Polyamide 6.6
4 screw clamps
22-10 AWG
90, 250, 350, 450 V DC
10 KA (8/20 µs)
–
100 ns
5A
<1.0 pf
For simultaneous protection of lines
against transversal (line/line) and longitu-
dinal (line/earth) surge.
Cat. No. Std. Pk.
CDL4U(E)3LA* 20
EPCDL4U 50
COLOR BLOCKS
(other than grey standard)
When ordering please add
color suffix to Cat. No.
Example: CTS2.5U-N/R
Color Ordering Suffix
Red R
Blue BU
Black BL
Orange O
Green G
Yellow Y
White W
Beige BG
Dark Brown DB
End Stop
for ordering information
refer to page 63
Marking Tags (MT Type)
CA702 50
CA802 50
MT2 100
CA702 50
CA802 50
MT2 100
* Add required voltage to part number as a suffix
i.e. CDL4U(E)LA/75 is for 75V.
CDL4U(E)MOV
1
CDL4U(E)SD CDL4U(E)RC
MOV Suppressor Diode RC Circuit
12 mm
54 x 55.5 mm
9 mm
Polyamide 6.6
4 screw clamps
22-10 AWG
130 V AC*
–
2kA-6.5kA (8/20 µs)
<25ns
10A
100-20,000 pf
For protection from voltage
surge, spikes
Cat. No. Std. Pk.
CDL4U(E)MOV 20
12 mm
54 x 55.5 mm
9 mm
Polyamide 6.6
4 screw clamps
22-10 AWG
12-48V DC / 12-160V AC**
1.5 KA (8/20 µs)
–
1 ns DC / 5 ns AC
10A
–
For fine protection of data interfcaes, sen-
sors, contacts, etc.
Cat. No. Std. Pk.
CDL4U(E)SD 20
18 mm
54 x 55.5 mm
9 mm
Polyamide 6.6
4 screw clamps
22-10 AWG
250 V AC / 330 V DC
20A
–
–
10A
0.1 µf or 0.22 µf
2
For protection of DC solenoid valves
and contactors
Cat. No. Std. Pk.
CDL4U(E)RC 10
EPCDL4U 50
CA702 50
CA802 50
MT2 100
1
A fuse block is recommended to protect MOV terminals by disconnecting the faulted varistor. See pages 28-30 for fuse blocks.
EPCDL4U 50
CA702 50
CA802 50
MT2 100
* Other voltages available upon request. Call Altech for voltage selection.
** Phase to Phase / Phase to ground. Call Altech for voltage selection.
EPCDL4U 50
CA702 50
CA802 50
MT2 100
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