Watlow SSR-240-10A-DC1, SSR-240-25A-DC1, SSR-240-50A-DC1, SSR-240-10A-AC1, SSR-240-25A-AC1 Specifications
...
Solid State Relay
Solid State Relay Offers
More For Less: Longer
Heater Life at Lower Cost
®
Watlow
advantages of solid state power controllers, yet at a lower
cost. Watlow’s extensive knowledge in power controller
design has led to the development of a special fast cycle
input card that enables a SSR to operate from a standard
4-20mA instrumentation command signal. Test results
have shown that a zero cross SSR in combination with the
fast cycle card promotes better temperature control and
longer heater life than slow cycle relays. Through a time
proportional cycle rate of one tenth of a second heater life
will be extended.
Both low and high voltage models are available from
24 up to 530VAC. All ac output models include back to back
Silicon Controlled Rectifiers (SCRs) for a more rugged design
than the traditional triac based SSR. The internal design
allows it to handle high currents and the harsh electrical
environments of heavy industry. Watlow also offers a
switched VDC model for dc heating applications.
Watlow can provide all the components necessary
for trouble-free operation. This includes two standard
convenience items: a thermal foil to ensure proper thermal
transfer from the relay to the heat sink and belville washers
that ensure the relay is mounted with sufficient pressure for
good heat transfer. Matched semiconductor fuses and heat
sinks are available to complete the power switching package.
solid state relays (SSR) offer many of the
Features and Benefits
Fast cycle card
• Increases heater life
• Optimizes temperature control
• Allows for higher watt density heaters
Zero cross firing
• Results in minimal electrical noise
Back-to-back SCR design
• Withstands harsh or hostile industrial environments
UL® recognized File #E151484 and #E73741;
CSA certified File #LR700195; VDE 60950
License #40021401, File #1995500 up to 480VAC
• Meets applications requiring agency approval
© 2013 Watlow Electric Manufacturing Company
WIN-SSR-0413
Specifications
07
Load Current (Amperes)
Specifications Standard To All SSRs:
Dielectric Strength (Volts) 4000 RMS
Input, DC Control
Voltage range 3-32VDC
Typical input current 3.4 to 20mA
Turn on voltage (max.) 3VDC
Turn off voltage (min.) 1VDC
Input, AC Control
Voltage range 90-280VAC
Typical input current 2mA (typical) @ 120VAC
4mA (typical) @ 240VAC
Turn on voltage (max.) 90VAC
Turn off voltage (min.) 10VAC
AC Output (Max.)
Forward voltage drop 1.5VAC and 2.1VDC
Min. holding current (mA) 50mA
Turn on-off time (ms) up to 10ms (max.)
Frequency range 47 to 63Hz
Ambient Temperature Operating Curve
85
80
75
70
65
60
55
50
45
Ambient temperature inside enclosure
3 inches left or right of the heatsink (ºC)
40
35
30
25
SSR-240-10A-XXX and Z100-0815-000A Heatsink
51015202530354045505560657
SSR-XXX-25A-XXX and Z100-0815-000B Heatsink
SSR-100-20A-DC1 and Z100-0815-000B Heatsink
SSR-XXX-75A-XXX and Z100-0815-000C Heatsink
SSR-XXX-50A-XXX and Z100-0815-000C Heatsink
SSR-XXX-75A-XXX and
Z100-0815-XXFC Heatsink
120/240VAC
Model Number
Current output 10A 25A 50A 10A 25A 50A
Nominal voltage 120/240VAC 120/240VAC 120/240VAC 120/240VAC 120/240VAC 120/240VAC
One cycle surge current 120A 250A 625A 120A 250A 625A
2
Max. I
t for fusing 60A2 seconds 260A2 seconds 1,620A2 seconds 60A2 seconds 260A2 seconds 1,620A2 seconds
Thermal resistance 1.48° C/W 1.05° C/W 0.63° C/W 1.48° C/W 1.05° C/W 0.31° C/W
Ambient operating
temperature
Output (Max.)
Voltage range 48-280VAC 48-280VAC 48-280VAC 48-280VAC 48-280VAC 48-280VAC
Over voltage rating 600V (peak) 600V (peak) 600V (peak) 600V (peak) 600V (peak) 600V (peak)
Off state leakage 10mA 10mA 10mA 10mA 10mA 10mA
SSR-240-10A-DC1 SSR-240-25A-DC1 SSR-240-50A-DC1 SSR-240-10A-AC1 SSR-240-25A-AC1 SSR-240-50A-AC1
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
5
120/240VAC Random Fired Models 100VDC
Model Number
Current output 75A 75A 50A 75A 10A 20A
Nominal voltage 120/240VAC 120/240VAC 480VAC 480VAC 120/240VAC 100VDC
One cycle surge current 1000A 1000A 625A 1000A 120A 42A (10ms)
2
Max. I
t for fusing 6000A2 seconds 6000A2 seconds 1,620A2 seconds 6000A2 seconds 60A2 seconds N/A
Thermal resistance 0.31° C/W 0.31° C/W 0.63° C/W 0.31° C/W 1.48° C/W 1.06° C/W
Ambient operating
temperature
Output (Max.)
Voltage range 48-280VAC 48-280VAC 80-530VAC 80-530VAC 48-280VAC 0-100VDC
Over voltage rating 600V (peak) 600V (peak) 1200V (peak) 1200V (peak) 600V (peak) N/A
Off state leakage 10mA 10mA 10mA 10mA 10mA 0.3mA VDC
SSR-240-75A-DC1 SSR-240-75A-AC1
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
SSR-480-50A-
-40 to 176°F
(-40 to 80°C)
RND
SSR-480-75A-
-40 to 176°F
(-40 to 80°C)
RND
SSR-240-10A-
-40 to 176°F
(-40 to 80°C)
RND SSR-100-20A-DC1
-4 to 176°F
(-20 to 80°C)
480 VAC
Model Number
Current output 25A 50A 75A 25A 50A 75A
Nominal voltage 480VAC 480VAC 480VAC 480VAC 480VAC 480VAC
One cycle surge current 250A 625A 1000A 250A 625A 1000A
2
Max. I
t for fusing 260A2 seconds 1,620A2 seconds 6,000A2 seconds 260A2 seconds 1,620A2 seconds 6,000A2 seconds
Thermal resistance 1.02° C/W 0.63° C/W 0.31° C/W 1.02° C/W 0.63° C/W 0.31° C/W
Ambient operating
temperature
Output (Max.)
Voltage range 48-530VAC 48-530VAC 48-530VAC 48-530VAC 48-530VAC 48-530VAC
Over voltage rating 1200V (peak) 1200V (peak) 1200V (peak) 1200V (peak) 1200V (peak) 1200V (peak)
Off state leakage 10mA 10mA 10mA 10mA 10mA 10mA
SSR-480-25A-DC1 SSR-480-50A-DC1 SSR-480-75A-DC1 SSR-480-25A-AC1 SSR-480-50A-AC1 SSR-480-75A-AC1
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
-40 to 176°F
(-40 to 80°C)
Loading...