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ELECTRICAL NOISE SUPPRESSORS 1Ø
ELECTRICAL
NOISE SUPPRESSORS 1Ø
GENERAL DESCRIPTION
Transient Voltage Suppression in the Control Circuit
The opening and the closing of every electric device gen-
erates various random circuit phenomenons depending on
the type of loading, connected gears, cables, screens, etc.
and their effect on command devices, both electro-
mechanical and electrical. The mixed overvoltages, so
generated, result from the disconnecting of these inductive
loads. The electrical noise generated by these inductive
loads varies dramatically. Typical diagrams include:
Every load represents a combination of factors such as,
resistance, capacitive and inductive loads, type of input,
temperature variations, etc., which determines the vari-
ables toconsider in the choice of the most suitable tran-
sient voltage suppressor to avoid random malfunction or
direct, the destruction of the connected device.
The suppression, which can operate at different circuit lev-
els, is obtained using a module, mounted in parallel to the
inductive load.
Series D-9011 Electrical Noise Suppressors
Common sources of electrical noise are contactor coils
and solenoids, both AC & DC, and AC Motors.
Type D-9011 are electrical noise suppressors available in
three types, Diode, Varistor, and RC Circuit. Each is
encapsulated in a Mini housing to be wired in parallel with
the inductance or contactor coil. Important advantages
include compact size, low cost, and versatile mounting.
Mounting includes an industrial adhesive backing with cut-
to-length 8 inch leads. Type D-9011, then, mounts with
any manufactures contactors, reducing inventory, with
both cost and space savings.
Mounting and Wiring Options
D-9011 with
POWER
CONTACTOR
D-9011 with MINI
Contactor & Starter
Another important consideration is that the suppres-
sor device itself must not generate noise, or modify,
in any way, the normal function of the circuit.
The positioning of the suppressor module in the circuit
is another important factor. The best solution is to
mount the module as near as possible to the origin
of the noise itself. This avoids the involving of
other devices in the phenomenon such as cables.
SOLUTION
Solutions include the use of diodes as DC current
dumping circuit, the use of combinations resistance-
capacitor (RC) for alternating current, and varistors,
effective in both types of circuits. In addition, DETAS
has developed combination devices RC + Varistors, in
order to reach the best solution in difficult cases.
The wide choice available by DETAS permits you to find
the type of suppressor suitable to your requirements.
Finally, the DETAS and EE CONTROLS design depart-
ments can assist further with more detailed information
about specific circuit needs voltage
suppressors.
D-9011 DESIGN FEATURES
* Versatile Mounting
* UL Varistors Approved
* Compact Size
* Polycarbonated Class V2 Housing
* Low Cost
* Epoxy Resin per sec. UL94VO
* 7.8 Wire Leads with Fork types terminals
247
This module must preform two functions:
The elimination of the voltage increase and the fastest dis-
charge of the accumulated magnetic energy.
DET
AS
SUPPRESSORS DET
AS
FIL
TERS
TRANSIENT VOLTAGE
SUPPRESSORS
General Purpose
D
IODE
V
ARISTOR
24 - 230 v / DC
Diode
1 Amp
For LS4K to LS18K
Catalog No.
D 9011 00
$6.50 List Each
Diode
3 Amp
For LS22K to LS180K
Catalog No.
D 9011 03
$8.50 List Each
24V / AC / DC
Catalog No.
D 9011 30
$8.50 List Each
120V / AC
Catalog No.
D 9011 35
$9.00 List Each
230V / AC
Catalog No.
D 9011 40
$9.00 List Each
400v / AC
Catalog No.
D 9011 45
$9.50 List Each
(Mini Size) Series D9011 For Coils
RC
V
ARISTOR
(VDR)+ RC
400 v / AC max
.47 uf 220 ohm
For LS05 to LS75K
Catalog No.
D 9011 99
$6.50 List Each
24v / AC / DC
Catalog No.
D 9011 90
$8.00 List Each
120v / AC
Catalog No.
D 9011 91
$8.00 List Each
230v / AC
Catalog No.
D 9011 92
$8.50 List Each
400v / AC
Catalog No.
D 9011 93
$9.50 List Each
TRANSIENT SUPPRESSORS
SERIES 9050 CONTACTOR MOUNT
(SIEMENS & KM)
RC
24-48v / AC
1.6 uf
110 ohm
Catalog No.
D 9050 48
$7.50 List Each
115-230v /AC
.22 uf
220 ohm
Catalog No.
D 9052 50
$7.50 List Each
V
ARISTOR
24v /AC /DC
Catalog No.
D 9052 24
$6.00 List Each
D
IODE
24v - 230v DC
Catalog No.
D 9051 24
$5.00 List Each
(1.26 x .87 x .43:)
* 7.8
(1.26 x .87 x .43:)
* 7.8
(1.06 x .43 x 1.10)
* 7.8
For Allen Bradley or Square D (Tele)
Use above Mini Series
* Wire Lead Length -- Inches
Dimensions
Approx.
W x H x D
W x H x D
H
D
L (W)
248
Discount Schedule: DE