Specifications are subject to change without notice (30.09.2005)
1
Rated opera-
Non-rep.
Control
Rated operational current
tional voltage
voltage
voltage
25 A
40 A
230 VACrms
650V
p
110 VAC 15%
RS1A23A1-25
RS1A23A1-40
230 VAC 15%
RS1A23A2-25
RS1A23A2-40
400 VAC 15%
RS1A23A4-25
RS1A23A4-40
400 VACrms
850V
p
230 VAC 15%
RS1A40A2-25
RS1A40A2-40
400 VAC 15%
RS1A40A4-25
RS1A40A4-40
Zero switching AC Solid State Relay
Direct copper bonding (DCB) technology
Alternistor power unit
LED indication
Clip-on IP 20 protection cover
Self-lifting terminals
Housing free of moulding mass
Fixed AC control input
Operational ratings up to 40 AACrms and 400 VAC
Non-repetitive voltage: Up to 850 V
p
Opto-isolation: > 4000 VACrms
Product Description
The zero switching relay with
alternistor output is an inex-
pensive solution for resistive
loads. The zero switching
relay switches ON when the
sinusoidal curve crosses zero
and switches OFF when the
current crosses zero. The
Solid State Relay
Number of poles
Switching mode
Rated operational voltage
Control voltage
Rated operational current
Ordering Key
Solid State Relays
LED indicates the status of
the control input. The clip-on
cover is securing touch pro-
tection (IP 20). Output termi-
nals can handle cables up to
16 mm
2
.
Type Selection
Switching mode
Rated operational
Rated operational
Control voltage
voltage
current
A: Zero Switching
23: 230 VACrms
25: 25 AACrms
A1: 110VAC 15%
40: 400 VACrms
40: 40 AACrms
A2: 230VAC 15%
A4: 400VAC 15%
Selection Guide
Industrial, 1-Phase ZS w. LED
Types RS 23 A, RS 40 A
RS 1 A 23 A2- 25
General Specifications
RS1A23...
RS1A40...
Operational voltage range
42 to 265 VACrms
42 to 440 VACrms
Non-rep. peak voltage
650 V
p
850 V
p
Zero voltage turn-on
15 V
15 V
Operational frequency range
45 to 65 Hz
45 to 65 Hz
Power factor
0.95 @ 230 VACrms
0.95 @ 400 VACrms
Approvals
UL, cUL, CSA
UL, cUL, CSA
CE-marking
Yes
Yes
(external filter for EN 61000-6-4)
2
Specifications are subject to change without notice (30.09.2005)
RS1A..A
Output Specifications
Thermal Specifications
Input Specifications
RS1A...25
RS1A...40
Operating temperature
-30 to 70C
-30 to 70C
Storage temperature
-40 to 100C
-40 to 100C
Junction temperature
125C
125C
R
th
junction to case
1.10 K/W
0.8 K/W
R
th
junction to ambient
20 K/W
20 K/W
RS1A...25
RS1A...40
Rated operational current
AC51 @ Ta=25C
25 Arms
40 Arms
Min. operational current
150 mA
150 mA
Rep. overload current t=1 s
< 37 AACrms
< 60 AACrms
Non-rep. surge current t=10 ms
300 A
p
390 A
p
Off-state leakage current @ rated
voltage and frequency
< 3 mArms
< 3 mArms
I
2
t for fusing t=1-10 ms
450 A
2
s
760 A
2
s
Critical dI/dt
50 A/s
50 A/s
On-state voltage drop @ rated current
1.6 Vrms
1.6 Vrms
Critical dV/dt off-state
500 V/s
500 V/s
Rated insulation voltage
Input to output
4000 VACrms
Output to case
4000 VACrms
Insulation
Weight
Approx. 60 g
Housing material
Noryl GFN 1, black
Baseplate
Aluminium
Potting compound
None
Relay
Mounting screws
M5
Mounting torque
1.5-2.0 Nm
Control terminal
Mounting screws
M3 x 9
Mounting torque
0.5 Nm
Power terminal
Mounting screws
M5 x 9
Mounting torque
2.4 Nm
Housing Specifications
RS1A..A1
RS1A..A2
RS1A..A4
Control voltage
80 to 130VAC
200 to 260 VAC
360 to 440 VAC
Control frequency
50Hz / 60Hz
50Hz / 60Hz
50Hz / 60Hz
Pick-up voltage
70VAC
190VAC
350VAC
Drop out voltage
30VAC
70VAC
160VAC
Input current @ max input voltage
13mA
13mA
13mA
Typical response time pick-up
20mS
20mS
20mS
Typical response time drop-out
20mS
20mS
20mS
Functional Diagram
A1 (~)
A2 (~)
T1
L1
Regulation
ZC
Specifications are subject to change without notice (30.09.2005)
3
RS1A..A
Heatsink Dimensions
(load current versus ambient temperature)
RS25.
2.31
1.96
1.62
1.28
0.93
0.59
2.85
2.45
2.06
1.66
1.27
0.87
3.49
3.03
2.56
2.10
1.64
1.18
4.17
3.63
3.08
2.53
1.99
1.44
5.11
4.44
3.78
3.12
2.45
1.79
6.43
5.60
4.77
3.95
3.12
2.29
8.45
7.37
6.29
5.21
4.12
3.04
11.85 10.35
8.84
7.33
5.83
4.32
18.7
16.4
14.0 11.63
9.27
6.90
-
-
-
24.6
19.7
14.7
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
Load
current [A]
Thermal resistance
[K/W]
T
A
Ambient temp. [
C]
Power
dissipation [W]
29
25
22
18
15
12
9
7
4
2
20
30
40
50
60
70
Junction to ambient thermal resistance, R
th j-a
< 20.0 K/W
Junction to case thermal resistance, R
th j-c
< 1.10
K/W
Case to heatsink thermal resistance, R
th c-s
< 0.20
K/W
Maximum allowable case temperature
100
deg.C
Maximum allowable junction temperature
125
deg.C
Carlo Gavazzi Heatsink
Thermal
...for power
(see Accessories)
resistance... dissipation
No heatsink required
---
N/A
RHS 300
5.00 K/W
> 0 W
RHS 100
3.00 K/W
> 25 W
RHS 45C
2.70 K/W
> 60 W
RHS 45B
2.00 K/W
> 60 W
RHS 90A
1.35 K/W
> 60 W
RHS 45A plus fan
1.25 K/W
> 0 W
RHS 45B plus fan
1.20 K/W
> 0 W
RHS 112A
1.10 K/W
> 100 W
RHS 301
0.80 K/W
> 70 W
RHS 90A plus fan
0.45 K/W
> 0 W
RHS 112A plus fan
0.40 K/W
> 0 W
RHS 301 plus fan
0.25 K/W
> 0 W
Consult your distribution
> 0.25 K/W
N/A
Infinite heatsink - No solution
---
N/A
Heatsink Selection
RS40..
1.25
1.04
0.82
0.61
0.39
0.18
1.59
1.35
1.10
0.85
0.60
0.36
2.02
1.74
1.45
1.16
0.87
0.58
2.53
2.19
1.85
1.51
1.17
0.83
3.12
2.70
2.29
1.87
1.46
1.04
3.95
3.43
2.91
2.39
1.87
1.35
5.21
4.53
3.85
3.18
2.50
1.83
7.33
6.39
5.45
4.51
3.57
2.62
11.63 10.16
8.68
7.20
5.72
4.24
24.6
21.5
18.4
15.3
12.2
9.12
40.0
36.0
32.0
28.0
24.0
20.0
16.0
12.0
8.0
4.0
Load
current [A]
Thermal resistance
[K/W]
T
A
Ambient temp. [
C]
All dimensions in mm
Power
dissipation [W]
47
41
35
29
24
19
15
11
7
3
20
30
40
50
60
70
Junction to ambient thermal resistance, R
th j-a
< 20.0 K/W
Junction to case thermal resistance, R
th j-c
< 0.80
K/W
Case to heatsink thermal resistance, R
th c-s
< 0.20
K/W
Maximum allowable case temperature
100
deg.C
Maximum allowable junction temperature
125
deg.C
Dimensions
4
Specifications are subject to change without notice (30.09.2005)
Faston terminals
All accessories can be ordered pre-assembled with Solid State Relays.
Other accessories include DIN rail adaptors, fuses, varistors and spacers.
For futher information refer to Accessories datasheets.
Fast-on tabs
Tab dimensions accord-
ing to DIN 46342 part 1
Pure tin-plated brass
RS, RM Solid State Relay
Faston terminals
Tab orientation
Input Tab width: 4.8mm
Output Tab width: 6.3mm
Ordering Key
Screw mounted
Faston terminals
RS1A23A2-25 F 4
*
Other Accessories
Heatsinks and fans
Type RHS....
0.25 to 5.00 k/W
Single and dual
relay types
Touch safety cover
Type RMIP20
IP20 protection degree
Pack size: 20 pieces
RS, RM Solid State Relay
Tab orientation
** 48: 4.8mm faston for input
63: 6.3mm faston for output
Faston terminals
in packs of 20
RM48 F4
*
**
0: Flat (0)
4: Angled (45)
*
RS1A..A
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