Starting relay for starter capacitors - Reissmann Sensortechnik GmbH
Starting relay for starter capacitors - Reissmann Sensortechnik GmbH
Starting relay for starter capacitors - Reissmann Sensortechnik GmbH
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Product In<strong>for</strong>mation<br />
motor and machine protection<br />
Electronic Start Capacitor Relay:<br />
Start capacitor switching<br />
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REISSMANN <strong>Sensortechnik</strong> <strong>GmbH</strong> · Schollenäcker 3 (unterm Wasserturm) · D-74538 Rosengarten-Uttenhofen<br />
Telefon +49 (0)791 950 15-0 · Telefax +49 (0)791 950 15-29 · E-Mail info@reissmann.com · Internet http://www.reissmann.com<br />
Type: ERA<br />
Basic in<strong>for</strong>mation<br />
The ERA electronic <strong>relay</strong> controls the motor and start<br />
capacitor by means of an electronic adjustable time<br />
switch.<br />
Application<br />
The main function of the electronic <strong>relay</strong> is to control the<br />
connection between the start capacitor and the motor<br />
and is particularly suitable <strong>for</strong> applications demanding<br />
frequent switching.<br />
• single phase motors<br />
• three phase motors at single phase<br />
General function<br />
The start capacitor is switched off after an adjustable time<br />
delay. The time delay corresponds to the time required,<br />
<strong>for</strong> the motor to achieve nominal rotary speed, after start<br />
up.<br />
Advantages<br />
• High reliability throughout its life, produced through<br />
wear free, non-moving components.<br />
• Compact construction <strong>for</strong> mounting inside the motor<br />
terminal box.<br />
• Easier to install and adjust than centrifugal switches.<br />
• Optimum setting of motor torque, by means of adjustable<br />
switch off time, of the start capacitor.<br />
• Complete suppression of sparking during switching, unlike<br />
mechanical switches.<br />
• Higher tripping currents but compact device.<br />
page 1 of 3
Product In<strong>for</strong>mation<br />
motor and machine protection<br />
Electronic Start Capacitor Relay:<br />
Start capacitor switching<br />
L1<br />
N<br />
U2<br />
U1<br />
N L CA<br />
Schematic diagram and<br />
measurement of switching current I B<br />
Z1 Z2<br />
Lead pattern<br />
REISSMA NN<br />
electronic <strong>relay</strong><br />
<strong>for</strong> starting capacitor<br />
t = 0...4,5s<br />
d<br />
CB CA<br />
A I B<br />
L1, N: operating voltage<br />
U1, U2, Z1, Z2: motor windings<br />
CB: operating capacitor<br />
CA: start capacitor<br />
I : switching current<br />
B<br />
Electronic Start<br />
Capacitor Relay<br />
ERA 230/115<br />
Technical data<br />
���������<br />
REISSMANN <strong>Sensortechnik</strong> <strong>GmbH</strong> · Schollenäcker 3 (unterm Wasserturm) · D-74538 Rosengarten-Uttenhofen<br />
Telefon +49 (0)791 950 15-0 · Telefax +49 (0)791 950 15-29 · E-Mail info@reissmann.com · Internet http://www.reissmann.com<br />
Type: ERA<br />
Electrical data<br />
operation voltage: 230V ~ ± 10%<br />
optional: 115V ~ ± 10%<br />
Attention! The operational liability cannot<br />
be guaranteed with a permanent<br />
overvoltage of +10%<br />
and a maximum ambient<br />
temperature at the same time!<br />
switching current I B : max. 24A~<br />
ambient temperature<br />
max. +80°C<br />
time delay until start<br />
capacitor switches off: 0.25s ... 5s ± 10%,<br />
adjustable<br />
supply voltages above the<br />
rated voltage and ambient<br />
temperatures above the rated<br />
temperature reduce these<br />
times to smaller values,<br />
supply voltages below the rated<br />
voltage increase the times to<br />
higher values<br />
operating temperature<br />
of device: 0°C...+70°C<br />
ambient temperature: maximum +80°C<br />
storage temperature: -40°C ... +85°C<br />
Alternative 1 (ERA):<br />
time delay to reclosing<br />
of the start capacitor: about 60s<br />
terminals: cable shoes,<br />
connecting terminals<br />
Alternative 2 (ERA-nd):<br />
time delay to reclosing<br />
of the start capacitor: < 50 ms<br />
terminals: cable shoes,<br />
connecting terminals<br />
page 2 of 3
Product In<strong>for</strong>mation<br />
motor and machine protection<br />
Electronic Start Capacitor Relay:<br />
Start capacitor switching<br />
22 mm<br />
35 mm<br />
4 mm<br />
52 mm<br />
39 mm<br />
31 mm<br />
drawing<br />
schematic circuit:<br />
electronic start capacitor <strong>relay</strong> in motor terminal box<br />
Motor terminal box<br />
Z2<br />
U1<br />
U2 Z1<br />
Screw terminal<br />
red<br />
black<br />
blue<br />
brown blue<br />
CA<br />
5 mm<br />
11 mm<br />
17 mm<br />
Further advice and in<strong>for</strong>mation always available:<br />
Diameter=3,5mm<br />
Time delay<br />
21 mm<br />
Electronic start<br />
capacitor <strong>relay</strong><br />
start capacitor<br />
Mechanical data<br />
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housing: plastic/blue<br />
REISSMANN <strong>Sensortechnik</strong> <strong>GmbH</strong> · Schollenäcker 3 (unterm Wasserturm) · D-74538 Rosengarten-Uttenhofen<br />
Telefon +49 (0)791 950 15-0 · Telefax +49 (0)791 950 15-29 · E-Mail info@reissmann.com · Internet http://www.reissmann.com<br />
Type: ERA<br />
material - DIN-designation PA 66<br />
continuous rated temperature [°C] 100<br />
melting temperature (DIN 53 736) [°C] 255<br />
dynamic glass transition temperature<br />
(DIN 53 736) [°C]<br />
dimensional stability under heat according to<br />
ISO-R 75, procedure A (DIN 63 461) [°C]<br />
dimensional stability under heat according to<br />
ISO-R 75, procedure B (DIN 63 461) [°C]<br />
5/50<br />
100<br />
>200<br />
short time rated temperature [°C] 170<br />
coeffi cient of thermal conductivity<br />
(23°C)[W/(K*m)]<br />
0.23<br />
specifi c heat capacity (23°C) [J/(g*K)] 1.7<br />
coeffi cient of linear thermal expansion<br />
(23°C) [10 -5 *1/K]<br />
dimensions: 52 x 22 x 35 mm<br />
see drawing<br />
mounting: with screws or glued<br />
protection factor: IP 20<br />
weight: about 70 g<br />
7<br />
page 3 of 3
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