參數(shù)資料
型號: 240A25
英文描述: RELAY SOLID STATE 240V 25A
中文描述: 繼電器固態(tài)240伏25A條
文件頁數(shù): 10/12頁
文件大?。?/td> 315K
代理商: 240A25
Form 859-990514
SOLID-STATE RELAYS
DATA
SHEET
page 10/12
Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com
Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO
Transformer Loads
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 cycle of the alternating
voltage. Large inrush currents can occur during the first cycle
of line voltage when a zero voltage SSR happens to turn on
during the positive 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.
Solenoid Valve and Contactor Loads
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.
Tips (Continued)
Applications
Control Current Calculation
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
C
= 500 (E
C
- 3)
where E
C
= the control voltage.
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:
E
C
- 1
1000
I
C
=
where R
C
= zero.
With a 5V control signal,
5
- 1
1000
I
C
=
= 4 mA.
120-Volt Coils
SSR CURRENT
RATING
SOLENOID
CONTACTOR
2-Amp
1-Amp
NEMA Size 4
4-Amp
3-Amp
NEMA Size 7
240-Volt Coils
SSR CURRENT
RATING
SOLENOID
CONTACTOR
2-Amp
1-Amp
NEMA Size 7
4-Amp
3-Amp
NEMA Size 7
120-Volt Transformers
SSR MODEL
TRANSFORMER
P or MP 120D2
100 VA
Z120D10
500 VA
120D3
100 VA
P or MP 120D4
250 VA
120D10 or 120A10
500 VA
120D25 or 120a25
1 KVA
120D45
2 KVA
240-Volt Transformers
P or MP240D2
200 VA
7240D10
1 KVA
120D3
200 VA
P or MP240D4
500 VA
240D10 or 240A10
1 KVA
240D25 or 240A25
2 KVA
240D45
4 KVA
480-Volt Transformers
SSR MODEL
TRANSFORMER
480D10-12
5-Amp Primary
480D15-12
5-Amp Primary
相關(guān)PDF資料
PDF描述
240D3 RELAY SOLID STATE 240V 3A
575D45-12 RELAY SOLID STATE 575V 45A
240NQ035 240 AMP SCHOTTKY RECTIFIER
240NQ040 240 AMP SCHOTTKY RECTIFIER
240NQ045 240 AMP SCHOTTKY RECTIFIER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
240A25 制造商:Opto 22 功能描述:Solid-State pwr Relay pwr ser Standard
240A45 制造商:Opto 22 功能描述:Relay;SSR;Power;Cur-Rtg 45A;Vol-Rtg 240AC;Panel Mnt;UL, CSA, CE;AC Series 制造商:Opto 22 功能描述:SSR 45A 240VAC 制造商:Opto 22 功能描述:SSR, PANEL MOUNT, 280VAC, 280VAC, 45A; Operating Voltage Min:24VAC; Operating Voltage Max:280VAC; Control Voltage AC Min:280VAC; Control Voltage AC Max:85VAC; Contact Configuration:-; Load Current:45A; Switching Mode:Zero Crossing ;RoHS Compliant: Yes 制造商:Opto 22 功能描述:Relay SSR 280V AC-IN 45A 280V AC-OUT 4-Pin
240A45 制造商:Opto 22 功能描述:SOLID STATE RELAY ((NW)) 制造商:Opto 22 功能描述:SSR, PANEL MOUNT, 280VAC, 280VAC, 45A
240A45MSTB-5AMP 制造商:Olympic Controls Corporation 功能描述:STB
240AF30DF 制造商:Olympic Controls Corporation 功能描述:DF