240D10-17 OPTO 22, 240D10-17 Datasheet - Page 10

• Manufacturer Part Number: 240D10-17
• Description: SSR, 10A, 240VAC
• Manufacturer: OPTO 22

Specifications of 240D10-17

• Control Voltage Range: 3Vdc To 32Vdc
• Operating Voltage Range: 24VAC To 280VAC
• Load Current: 10A
• Isolation Voltage: 4000V
• Control Voltage Type: DC
• Svhc: No SVHC (18-Jun-2010)
• Approval Bodies: UL, CSA
• Control Voltage: RoHS Compliant
• Brand/series: DC Series
• Current, Rating: 10 A
• Function: Timing
• Mounting Type: PCB
• Relay Type: Solid State
• Termination: Screw
• Timer Type: Off Delay
• Voltage, Control: 240 VAC
• Relay Terminals: Screw
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: RoHS Compliant part

Opto 22 • 43044 Business Park Drive • Temecula, CA 92590 • Phone: [phone] • (800)321-OPTO • Fax: [phone] • Internet: www.opto22.com
Inside Sales: (800)452-OPTO • Product Support: (800)TEK-OPTO • [phone] • Fax: [phone] • E-mail: [e-mail] • FaxBack: (800)474-OPTO
DATA SHEET
Transformer Loads
Form 859-990514
Applications
Careful consideration should be given to the selection
of the proper SSR for driving a given transformer. Transformers
are driven from positive saturation of the iron core to negative
saturation of the core each ½ cycle of the alternating
voltage. Large inrush currents can occur during the first ½ cycle
of line voltage when a zero voltage SSR happens to turn on
during the positive ½ cycle of voltage when the core is
already in positive saturation. Inrush currents greater than
10 times rated transformer current can easily occur.
The following table provides a guide for selecting the
proper SSR for a given transformer rating.
Tips (Continued)
120D10 or 120A10
240D10 or 240A10
240D25 or 240A25
120D25 or 120a25
P or MP 120D2
P or MP 120D4
P or MP240D2
P or MP240D4
SSR MODEL
SSR MODEL
480D10-12
480D15-12
Z120D10
7240D10
240D45
120D45
120D3
120D3
120-Volt Transformers
240-Volt Transformers
480-Volt Transformers
TRANSFORMER
TRANSFORMER
5-Amp Primary
5-Amp Primary
500 VA
250 VA
500 VA
200 VA
200 VA
500 VA
100 VA
100 VA
1 KVA
2 KVA
1 KVA
1 KVA
2 KVA
4 KVA
All Opto 22 DC controlled SSRs have a control circuit consisting of 1000 ohms in
series with an LED. Since 3 volts is required to turn on any SSR, the maximum current
required is (3 volt - 1 volt) divided by 1000 ohms which equals 2.0 mA. The 1 volt is subtracted
from the 3 volt signal because 1 volt is dropped across the LED. For higher control voltages,
an external resistor can be added in series with the control voltage to limit the control
current. To limit the control current to 2 mA, calculate the external resistor R
where E
The DC control voltage range is 3–32 VDC. To calculate the control current for any
voltage within the 3–32 VDC range, use the formula:
I
where R
With a 5V control signal,
I
Control Current Calculation
C
C
=
=
SOLID-STATE RELAYS
C
E
5 - 1
1000
1000
= the control voltage.
C
C
= zero.
- 1
All Opto 22 SSRs are designed to drive inductive loads such as solenoid
valves and electromechanical contactors. The built-in snubber in each SSR
assures proper operation into inductive loads. The following table is a
guide in selecting an SSR to drive a solenoid or contactor.
Solenoid Valve and Contactor Loads
= 4 mA.
SSR CURRENT
SSR CURRENT
RATING
RATING
2-Amp
4-Amp
2-Amp
4-Amp
120-Volt Coils
240-Volt Coils
SOLENOID
SOLENOID
1-Amp
3-Amp
1-Amp
3-Amp
CONTACTOR
CONTACTOR
NEMA Size 4
NEMA Size 7
NEMA Size 7
NEMA Size 7
C
= 500 (E
page 10/12
C
- 3)