Solid State Relays
Industrial, 1-Phase ZS (IO) w. LED and Built-in Varistor
Types RM 23, RM 40, RM 48, RM 60
• Zero switching (RM1A) or instant-on
switching (RM1B) AC Solid State Relay
• Direct copper bonding (DCB) technology
• LED indication
• Built-in varistor 230, 400, 480, 600V
• Clip-on IP 20 protection cover
• Self-lifting terminals
• Housing free of moulding mass
• 2 input ranges: 3-32* VDC and 20-280VAC/22-48VDC
• Operational ratings: Up to 100AACrms and 600VACrms
• Blocking voltage: Up to 1400V
p
• Opto-isolation: > 4000VACrms
Product Description
The industrial, 1-phase relay
with antiparallel thyristor out-
put is the most widely used
industrial SSR due to its mul-
tiple application possibilities.
The relay can be used for
resistive,
inductive
and
capacitive loads. The zero
switching relay switches ON
when the sinusoidal curve
crosses zero and switches
OFF when the current cross-
es zero. The instant-on relay
with DC control input can be
used for phase control. The
built-in varistor secures tran-
sient protection for the heavy
industrial applications, and
the LED indicates the status
of the control input. The clip-
on cover is securing touch
protection to IP 20. Protect-
ed output terminals can han-
dle cables up to 16mm
2
.
Ordering Key
Solid State Relay
Number of poles
Switching mode
Rated operational voltage
Control voltage
Rated operational current
RM 1 A 23 D 25
Type Selection
Switching mode
A: Zero Switching
B: Instant-on switching
(DC Control only)
Rated operational
voltage
23: 230VACrms
40: 400VACrms
48: 480VACrms
60: 600VACrms
Control voltage
A: 20-280VAC/22-48VDC
D: 3-32VDC*
*4 to 32VDC for 400, 480 and 600VAC types
*4 to 32VDC for RM1B types
Rated operational
current
25: 25AACrms
50: 50AACrms
75: 75AACrms
100: 100AACrms
Selection Guide
Rated opera-
tional voltage
230VACrms
Blocking Control
voltage
voltage
650V
p
3 - 32VDC
20 to 280VAC
22 to 48VDC
4 - 32VDC
20 to 280VAC
22 to 48VDC
4 - 32VDC
20 to 280 VAC
22 to 48VDC
4 - 32VDC
20 to 280VAC
22 to 48VDC
Rated operational current
25A
50A
RM1A23D25
RM1A23A25
RM1A40D25
RM1A40A25
RM1A48D25
RM1A48A25
RM1A60D25
RM1A60A25
RM1A23D50
RM1A23A50
RM1A40D50
RM1A40A50
RM1A48D50
RM1A48A50
RM1A60D50
RM1A60A50
75A
RM1A23D75
RM1A23A75
RM1A40D75
RM1A40A75
RM1A48D75
RM1A48A75
RM1A60D75
RM1A60A75
100A
RM1A23D100
RM1A23A100
RM1A40D100
RM1A40A100
RM1A48D100
RM1A48A100
RM1A60D100
RM1A60A100
400VACrms
850V
p
480VACrms
1200V
p
600VACrms
1400V
p
1
RM1A, RM1B
General Specifications
RM1.23...
Operational voltage range
RM1A...
RM1B...
Blocking voltage
Zero voltage turn-on
Operational frequency range
Power factor
Approvals
CE-marking
* Heatsink must be connected to ground
RM1.40...
RM1.48...
RM1.60...
24 to 265VACrms
42 to 265VACrms
≥
650V
p
≤
10V
45 to 65Hz
> 0.5 @ 230VACrms
UL, cUL, CSA
Yes
42 to 440VACrms
42 to 440VACrms
≥
850V
p
≤
10V
45 to 65Hz
> 0.5 @ 400VACrms
UL, cUL, CSA
Yes
42 to 530VACrms
42 to 530VACrms
≥
1200V
p
≤
10V
45 to 65Hz
> 0.5 @ 480VACrms
UL, cUL, CSA
Yes
42 to 660VACrms
42 to 660VACrms
≥
1400V
p
≤
10V
45 to 65Hz
> 0.5 @ 600VACrms
UL, cUL, CSA
Yes *
Input Specifications
RM1...D..
Control voltage range
RM1A23...
RM1A40... RM1A48... RM1A60...
RM1B...
Pick-up voltage @ Ta = 25˚C
RM1A23...
RM1A40... RM1A48... RM1A60...
RM1B ...
Reverse voltage
Drop out voltage
Input current @ max input voltage
RM1A
RM1B
Response time pick-up
RM1A
RM1B
Response time drop-out
RM1...A..
3 - 32VDC
4 - 32VDC
4 - 32VDC
2.5VDC
3.5VDC
3.5VDC
32VDC
1.2VDC
≤12
mA
≤15
mA
≤1/2
cycle
≤0.1ms
≤1/2
cycle
20 - 280VAC, 22 - 48VDC
20 - 280VAC, 22 - 48VDC
-
18VAC/DC
18VAC/DC
-
-
6VAC/DC
≤
20mA
-
≤
12ms
-
≤
40ms
Output Specifications
RM1....25
Rated operational current
AC51 @ Ta=25°C
AC53a @ Ta=25°C
Min. operational current
Rep. overload current t=1 s
Non-rep. surge current t=10 ms
Off-state leakage current @
rated voltage and frequency
I
2
t for fusing t=10 ms
On-state voltage drop @ rated current
Critical dV/dt off-state min.
25Arms
5Arms
150mA
< 55AACrms
325A
p
< 3mArms
< 525A
2
s
1.6Vrms
1000V/µs
RM....50
50Arms
15Arms
250mA
< 125AACrms
600A
p
< 3mArms
< 1800A
2
s
1.6Vrms
1000V/µs
RM1....75
75Arms
20Arms
400mA
< 150AACrms
1150A
p
< 3mArms
< 6600A
2
s
1.6Vrms
1000V/µs
RM1....100
100Arms
30Arms
500mA
< 200AACrms
1900A
p
< 3mArms
< 18000A
2
s
1.6Vrms
1000V/µs
2
RM1A,RM1B
Thermal Specifications
RM1....25
Operating temperature range
Storage temperature range
Junction temperature
R
th
junction to case
R
th
junction to ambient
-20° to 70°C
-40° to 100°C
≤
125°C
≤
0.80K/W
≤
20.0K/W
RM1....50
-20° to 70°C
-40° to 100°C
≤
125°C
≤
0.50K/W
≤
20.0K/W
RM1.60.50
-20° to 70°C
-40° to 100°C
≤
125°C
≤
0.72K/W
≤
20.0K/W
RM1....75
-20° to 70°C
-40° to 100°C
≤
125°C
≤
0.35K/W
≤
20.0K/W
RM1....100
-20° to 70°C
-40° to 100°C
≤
125°C
≤
0.30K/W
≤
20.0K/W
Housing Specifications
Weight
25A, 50A
75A, 100A
Housing material
Baseplate
25A, 50A
75A, 100A
Potting compound
Approx. 60g
Approx. 100g
Noryl GFN 1, black
Aluminium
Copper, nickel-plated
None
Housing Specifications (Cont.)
Relay
Mounting screws
Mounting torque
Control terminal
Mounting screws
Mounting torque
Power terminal
Mounting screws
Mounting torque
M5
1.5-2.0Nm
M3 x 9
0.5Nm
M5 x 9
2.4Nm
Functional Diagram
Dimensions
A1(
+
)
~
REGULATION
T1
ZC
IO
-
A2(
~
)
L1
LED
APPLY
HEATSINK
COMPOUND
All dimensions in mm
Heatsink Selection
Carlo Gavazzi Heatsink
Thermal
...for power
(see Accessories)
resistance... dissipation
No heatsink required
---
N/A
RHS 300
5.00K/W
> 0W
RHS 100
3.00K/W
> 25W
RHS 45C
2.70K/W
> 60W
RHS 45B
2.00K/W
> 60W
RHS 90A
1.35K/W
> 60W
RHS 45C plus fan
1.25K/W
> 0W
RHS 45B plus fan
1.20K/W
> 0W
RHS 112A
1.10K/W
> 100W
RHS 301
0.80K/W
> 70W
RHS 90A plus fan
0.45K/W
> 0W
RHS 112A plus fan
0.40K/W
> 0W
RHS 301 plus fan
0.25K/W
> 0W
Consult your distribution > 0.25K/W
N/A
Infinite heatsink - No solution
---
N/A
Isolation
Rated isolation voltage
Input to output
Rated isolation voltage
Output to case
≥
4000VACrms
≥
4000VACrms
3
