Electronic Components Datasheet Search
  English  ▼


MP240D2 Datasheet(PDF) 20 Page - Opto Electronics Co,. LTD

Part # MP240D2
Description  Solid-State Relays
Download  23 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  E-OEC [Opto Electronics Co,. LTD]
Direct Link  http://www.e-oec.com
Logo E-OEC - Opto Electronics Co,. LTD

MP240D2 Datasheet(HTML) 20 Page - Opto Electronics Co,. LTD

Back Button MP240D2 Datasheet HTML 15Page - Opto Electronics Co,. LTD MP240D2 Datasheet HTML 16Page - Opto Electronics Co,. LTD MP240D2 Datasheet HTML 17Page - Opto Electronics Co,. LTD MP240D2 Datasheet HTML 18Page - Opto Electronics Co,. LTD MP240D2 Datasheet HTML 19Page - Opto Electronics Co,. LTD MP240D2 Datasheet HTML 20Page - Opto Electronics Co,. LTD MP240D2 Datasheet HTML 21Page - Opto Electronics Co,. LTD MP240D2 Datasheet HTML 22Page - Opto Electronics Co,. LTD MP240D2 Datasheet HTML 23Page - Opto Electronics Co,. LTD  
Zoom Inzoom in Zoom Outzoom out
 20 / 23 page
background image
Solid-State Relays
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Three-Phase Reversing Motor Control
Three-phase reversing motor control can be implemented
with four SSRs as shown in the connection diagram. The SSRs
work in pairs with SSR1 and SSR3 operated for rotation in one
direction and SSR2 and SSR4 operated for rotation in the
reverse direction. The resistor R1 as shown in the connection
diagram protects against line-to-line shorts if SSR1 and SSR4
or SSR3 and SSR2 are on at the same time during the reversing
transition period. Use the following table as a guide to the
proper selection of an SSR for this application.
FAQ: SSR Applications
Q : What is a solid-state relay?
A: A solid-state relay (SSR) is a semiconductor device that can
be used in place of a mechanical relay to switch electricity to a
load in many applications. Solid-state relays are purely
electronic, normally composed of a low current “control” side
(equivalent to the coil on an electromechanical relay) and a
high-current load side (equivalent to the contact on a
conventional relay). SSRs typically also feature electrical
isolation to several thousand volts between the control and
load sides. Because of this isolation, the load side of the relay is
actually powered by the switched line; both line voltage and a
load (not to mention a control signal) must be present for the
relay to operate.
Q : What are the advantages of using an SSR over a
mechanical relay?
A: There are many applications that require a moderate
amount of power (W to kW) to be switched on and off fairly
rapidly. A good example would be the operation of a heater
element in a controlled-temperature system. Typically, the
amount of heat put into the system is regulated using pulse-
width modulation turning a fixed-power heating element on
and off for time periods ranging from seconds to minutes.
Mechanical relays have a finite cycle life, as their components
tend to wear out over thousands to millions of cycles. SSRs do
not have this problem; in the proper application, they could
be operated almost infinitely.
Q : What are the limitations of using an SSR?
A: SSRs have a few limitations when compared to the
capabilities of their mechanical counterparts. First, because
the relay is semiconductor-based, it will never turn all the way
on, nor off. This means that in the “on” state, the relay still has
some internal resistance to the flow of electricity, causing it to
get hot. When in the “off” state, the relay will exhibit a small
amount of leakage current, typically a few mA. This leakage
can conspire to keep some loads, especially ones with a high
impedance, from turning off! Additionally, SSRs are more
sensitive to voltage transients; while Opto 22 relays are very
well transient-protected, if a relay gets hit hard enough a
sufficient number of times, it will die or degrade. This makes
SSRs less ideal for driving highly inductive electromechanical
loads, such as some solenoids or motors. SSRs should also
never be used for applications such as safety power
disconnects, because even in the off state, leakage current is
present. Leakage current through an SSR also implies the
presence of a potentially high voltage. Even though the relay
is not conducting a large amount of current, the switched
terminal will still be “hot,” and thus dangerous.
480 Volt Three-Phase Motors
1-½ HP
1-½ HP
Opto 22
Motor Full
Load Rating
Resistor for
120V line
Resistor for
240V line
4 ohm 50 W
8 ohm 50 W
1 ohm 100 W
2 ohm 100 W
.5 ohm 100 W
1 ohm 100 W
.25 ohm 150 W
.5 ohm 150 W
1 ohm 100 W
2 ohm 100 W

Similar Part No. - MP240D2

ManufacturerPart #DatasheetDescription
Crydom Inc.,
MP240D2 CRYDOM-MP240D2 Datasheet
1Mb / 20P
List of Unclassifed Man...
MP240D2 ETC2-MP240D2 Datasheet
317Kb / 12P
More results

Similar Description - MP240D2

ManufacturerPart #DatasheetDescription
Omron Electronics LLC
G3NE OMRON-G3NE_1 Datasheet
452Kb / 8P
   Solid State Relays
700-SH ALLEN-BRADLEY-700-SH Datasheet
598Kb / 7P
   Solid-State Relays
2982689 PHOENIX-2982689 Datasheet
168Kb / 4P
   Solid-State Relays
TT Electronics.
OSSRD1001A TTELEC-OSSRD1001A Datasheet
586Kb / 15P
   Solid State Relays
GREEGOO Electric Co.,Lt...
GRV1024PW GREEGOO-GRV1024PW Datasheet
428Kb / 1P
   Solid State Relays
Omron Electronics LLC
G3M OMRON-G3M Datasheet
419Kb / 8P
   Solid State Relays
700-SF ALLEN-BRADLEY-700-SF Datasheet
374Kb / 4P
   Solid-State Relays
700-SC ALLEN-BRADLEY-700-SC Datasheet
391Kb / 5P
   Solid-State Relays
98Kb / 6P
   Solid-state relays
700-SK ALLEN-BRADLEY-700-SK Datasheet
370Kb / 5P
   Solid-State Relays
More results

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Datasheet Download

Go To PDF Page

Link URL

Privacy Policy
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com

Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com