240D25 OPTO 22, 240D25 Datasheet - Page 7

• Manufacturer Part Number: 240D25
• Description: SSR, PANEL MOUNT, 280VAC, 32VDC, 25A
• Manufacturer: OPTO 22

Specifications of 240D25

• Control Voltage Range: 3VDC To 32VDC
• Operating Voltage Range: 24VAC To 280VAC
• Load Current: 25A
• Isolation Voltage: 4000Vrms
• Control Voltage Type: DC
• Relay Terminals: Screw
• Peak Surge Current: 250A
• Brand/series: DC Series
• Current, Rating: 25 A
• Current, Surge: 250 A (Max.)
• Dimensions: 1.75 in. W x 2.25 in. H x 0.77 in. T
• Function: Power
• Mounting Type: PCB
• Relay Type: Solid State
• Standards: UL, CSA, CE
• Termination: Quick Connect
• Voltage, Control: 240 VAC
• Voltage, Drop, On-state: 1 VAC
• Control Voltage Max: 32V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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16
Applications: Tips (cont.)
Three-Phase Motor Control
Three-phase motors may be controlled by solid-state relays as
shown. A third SSR as shown is optional, but not necessary. The
control windings may be connected in series or parallel. Care should
be taken to ensure that the surge current drawn by the motor does
not exceed the surge current rating of the SSR.
SSR MODEL
Z240D25
Z240D10
240D10
240A10
240D25
240A25
240D45
SSR MODEL
480D10-12
480D15-12
480 Volt Three-Phase Motors
240 Volt Three-Phase Motor
MOTOR
1/3 HP
3/4 HP
3/4 HP
3/4 HP
2 HP
2 HP
3 HP
MOTOR
1-½ HP
1-½ HP
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.
Opto 22
10-Amp
25-Amp
45-Amp
15-Amp
3-Amp
Relay
Load Rating
Motor Full
1.25-Amp
16-Amp
5-Amp
8-Amp
5-Amp
Solid-State Relays
.25 ohm 150 W
.5 ohm 100 W
1 ohm 100 W
1 ohm 100 W
Resistor for
4 ohm 50 W
120V line
.5 ohm 150 W
2 ohm 100 W
2 ohm 100 W
1 ohm 100 W
Resistor for
8 ohm 50 W
240V line