4QD-PRO120-24 4QD PRO-120 24V Speed Controller
<p align="left"><font size="2" face="Arial, Helvetica, sans-serif"> <font color="00ff66">Pro
120 Mark 2 is built on the success of the Pro controller. The circuits
of these are so well proven and successful that no major design
was possible, but the board has been re-laid using sub-miniature
resistors to give room for more features.</font></font></p>
<p align="left"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">The
Pro includes a reverse polarity protection relay. The connections are
all arranged at one end of the board for ease of access once the controller
is boxed. The Pro-120 is a full featured, Four Quadrant (acceleration
and regenerative braking, forward and reverse) motor speed controller
principally for 12v, 24v and 36v battery operation, but a 48v version
is also available. Although it is similar in size to other industry
standard 110 amp controllers, the power performance is considerably
enhanced with no loss of reliability.</font></p>
<p align="left"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Two
controllers can be coupled so two motors work as one, but with independent
current limiting, giving control of currents up to 240 amps. </font></p>
<p align="left"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">For
complete specifications, please download the 'Details' PDF and/or
Owners Manuals. For information on the interface you will need
to control this ESC, <a href="4qd_electronic_interfaces.html">click here</a>. </font></p>
<table width="95%" border="1" cellpadding="0" cellspacing="0" bordercolor="#666666">
<tr>
<td width="17%" rowspan="3" bgcolor="#003300"><p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Output<br>
Current </font></p></td>
<td width="40%"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">155
Amps </font></td>
<td width="43%"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Intermittent</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">115 Amps</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">for 1 minute</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">30 Amps</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">continuous</font></td>
</tr>
<tr>
<td bgcolor="#003300"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Size</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">6.3 x 4.0
x 1.57&quot; </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">All PRO 120
series</font></td>
</tr>
<tr>
<td bgcolor="#003300"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Weight</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">11.36 oz (0.71
lb)</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">All PRO 120
series</font></td>
</tr>
</table>