MP240D4 OPTO 22, MP240D4 Datasheet - Page 15

Solid State Relay

MP240D4

Manufacturer Part Number
MP240D4
Description
Solid State Relay
Manufacturer
OPTO 22
Datasheets

Specifications of MP240D4

Control Voltage Type
DC
Input Voltage
3VDC To 24VDC
Load Current
4A
Load Voltage Range
24VAC To 280VAC
Switching Mode
Zero Cross
Relay Terminals
Through Hole
Load Voltage Max
280VAC
Load Voltage Min
24VAC
Capacitance
8 pF (Max.) Coupling (Input-Output)
Current, Surge, Non-repetitive Peak
85 Apeak @ 1 Cycle
Dimensions
1.70 in. L x 0.40 in. W x 0.98 in. D
Control Voltage Max
32V
Control Voltage Min
3V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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DATA SHEET
Form 859-050513
Applications: Tips (cont.)
load if the load is cycled on and off in a continuous manner as might
occur in a temperature control application. Constant cycling can
cause thermal fatigue in the thyristor chip at the point where the
chip bonds to the lead frame. Opto 22 employs a thick copper lead
frame for mounting the SCR chips in the power series SSRs to elimi-
nate thermal fatigue failures. In addition, Opto 22 recommends
operating any SSR at 75% rated current for cycling heater loads to
ensure complete reliability.
given heater load.
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: 951-695-3000 • 800-321-OPTO • Fax: 951-695-3095 • www.opto22.com
Lamp Loads (cont.)
Heater Loads
Care should be taken in selecting a SSR for driving a heater
The following table is a guide to selecting the proper SSR for a
Inside Sales: 800-321-OPTO • E-mail: sales@opto22.com • Product Support: 800-TEK-OPTO • 951-695-3080 • Fax: 9051695-3017
Current Rating
Nominal SSR
10 480V
10 480V
10-Amp
25-Amp
45-Amp
2-Amp
4-Amp
Recommended
Heater Current
Maximum
2½-Amp
7½-Amp
1½-Amp
18-Amp
35-Amp
8-Amp
8-Amp
inductance and the phase shift capacitor can cause twice line volt-
age to appear across the open SSR. A 240-volt SSR should be used
for a 120-Volt line. During the transition period when one SSR is
turned on and the other SSR is going off, both SSRs may be on. In
this case, the capacitor may discharge through the two SSRs, caus-
ing large currents to flow, which may destroy the SSRs. The addition
of RL as shown will protect the SSRs from the short circuit capacitor
discharge current.
The resistors are unnecessary if the control circuit is designed
SOLID-STATE RELAYS
Single-Phase Reversing Motor Control
The circuit diagram illustrates a typical 1 Ø motor winding
to ensure one SSR is off before the other SSR is on.
page 15/19

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