1104
P&B
Dimensions are shown for
reference purposes only.
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Catalog 1308242
Issued 3-03 (PDF Rev. 1-05)
Specifications and availability
subject to change.
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
Sample Part Number SSR -240 D
1. Basic Series:
2. Line Voltage:
3. Input Type & Voltage:
SSR = "hockey puck" inverse parallel SCR output solid state relay
25
4. Maximum Switching Rating/Output:
240 = 24 - 240VAC
25 = .1 - 25A rms, mounted to heatsink
50 = .1 - 50A rms, mounted to heatsink
125 = .1 - 125A rms, mounted to heatsink
5. Options: Leave Blank = Zero voltage turn-on
R = Random voltage turn-on (phase controllable)
480 = 48 - 660VAC
A = 90 - 280VAC
D = 3 - 32VDC
Ordering Information
File E81606
Users should thoroughly review the technical data before selecting a product part
number. It is recommended that users also seek out the pertinent approvals files of
the agencies/laboratories and review them to ensure the product meets the
requirements for a given application.
Engineering Data
Form: 1 Form A (SPST-NO).
Duty: Continuous.
Isolation: 4,000V rms minimum.
Capacitance: 8 pf typical (input to output).
Temperature Range:
Storage: –40°C to +100°C
Operating: –20°C to +80°C
Case Material: Plastic, UL rated 94V-0.
Case and Mounting: Refer to outline dimension.
Termination: Refer to outline dimension.
Approximate Weight: 3.5 oz. (98g).
Features
• Standard “hockey puck” package.
• Enhanced noise immunity (designed to meet level 3 requirements of
European EMC Directive).
• LED indicator.
• Inverse parallel SCR output.
• 25, 50, & 125A rms versions.
• 120/240VAC & 480VAC output types.
• Zero voltage and random voltage turn-on versions.
• AC & DC input versions.
• 4,000V rms optical isolation.
• Floating terminal design.
Input Specifications
Our authorized distributors are more likely to maintain the following items in stock for immediate delivery.
SSR-240A25 SSR-240D25 SSR-240D50
SSR-240A50 SSR-240D25R SSR-480D125
Parameter
Control Voltage Range V
Must Release Voltage V (Min.)
Input Current (Max.)
3 - 32VDC
Must Operate Voltage V (Min.) 3VDC
1VDC
15mA
4 - 32VDC
4VDC
1VDC
15mA
AC Input DC Input
240VAC Rated Models
IN
Zero V Turn-on Units
90 - 280VAC
90VAC
10VAC
15mA
Zero and Random V Turn-on Units
IN(OP)
IN(REL)
480VAC Rated Models
SSR series
“Hockey Puck”
Solid State Relay With
Paired SCR Output
1105
P&B
Dimensions are shown for
reference purposes only.
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Catalog 1308242
Issued 3-03 (PDF Rev. 1-05)
Specifications and availability
subject to change.
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
Electrical Characteristics (Thermal Derating Curves)
Output Specifications (@ 25° C, unless otherwise specified)
*See Derating Curves
Parameter Conditions Units
Load Voltage Range V
Repetitive Blocking Voltage (Min.)
Thermal Resistance, Junction to Case
(R ) (Max.)
I T Rating A Sec.
V rms
°C/W
V/µs
ms
ms
Turn-Off Time (Max.)
I = Max.
θ
2
Turn-On Time (Max.)
L
L
.1
25A Models
Single Cycle Surge Current (Min.)
Load Current Range I *
Leakage Current (Off-State) (Max.)
Static dv/dt (Off-State) (Min.)
Load Power Factor Rating
L
t = 8.3 ms 2
f = 60 Hz.
f = 60 Hz.
I = Max.
L
f = 60 Hz. V = 240V rms
V peak
V rms
A peak
On-State Voltage Drop (Max.)
250
.05 - 25 .1 - 125
J-C
1,700
.15
24 - 280
1.35
.25
48 - 660
±600
500
L
50A Models
12,000
Nom. Line Voltage
120/240V Model
480V Model
120/240 Model
480V Model
120/240 & 480V Models
120/240 & 480V Models
120/240V Model
480V Model
120/240 & 480V Models
120/240 & 480V Models
120/240 & 480V Models
120/240 & 480V Models
120/240 & 480V Models
120/240 & 480V Models
120/240 & 480V Models
f = 60 Hz. V = 480V rms
L
A rms
0.4
937
.1 - 50
750
0.25
2,458
V peak ±1200
8.3 for Zero Voltage Turn-On DC input types,
20 for Zero Voltage Turn-On AC input types,
0.02 for Random Voltage Turn-On Models
8.3 for DC input types, 30 for AC input types
0.5 - 1.0
125A Models
Resistive
mA rms
Heatsink Recommendations
• We recommend that solid state relay modules be mounted to a
heatsink sufficient to maintain the module’s base temperature at less
than 85°C under worst case ambient temperature and load conditions.
• The heatsink mounting surface should be a smooth (30-40 micro-inch
finish), flat (30-40 micro-inch flatness across mating area), un-painted
surface which is clean and free of oxidation.
• An even coating of thermal compound (Dow Corning DC340 or
equivalent) should be applied to both the heatsink and module mounting
surfaces and spread to a uniform depth of .002” to eliminate all air
pockets.
• The module should be mounted to the heatsink using two #10 screws.
Outline Dimensions
1.750
(44.45)
.785
(19.94)
.250
(6.35)
1.100
(27.94)
.470
(11.9)
2.250
(57.15)
1.850
(47.0) 1.700
(43.18)
1.000
(25.4)
.875
(22.23)
.870
(22.1)
LED INDICATOR
ZERO
VOLTAGE
CIRCUIT
ZERO
VOLTAGE
CIRCUIT
1
†
†
1
2
2
-4
4
3
+3 EQUIVALENT CIRCUIT ONLY
CONSTANT
CURRENT
DC INPUT
OUTPUT
AC INPUT OUTPUT
EQUIVALENT CIRCUIT ONLY
†Random Turn-on Units have a Random Turn-on circuit
instead of Zero Voltage Circuit
Operating Diagrams
50A Units
25A Units
125A Units
