2-122
Specifications are subject to change without notice (10.05.2002)
Solid State Relay
Switching mode
Rated operational voltage
Rated operational current
Control voltage
Option 1 (overvoltage protection)
Option 2 (pilot duty switch)
A Solid State Relay family
designed to switch various
loads such as heating ele-
ments, motors and trans-
formers. The relay is capable
of switching high voltages up
to 690 VACrms.
Technique
For higher reliability and load
cycle capability three alter-
nistor chips are soldered di-
rectly on to the direct copper
bonded (DCB) substrate. AC-
or DC-controlled versions are
available. Built-in LED status
indication for applied control
voltage. Other features in-
clude overvoltage protection
via the varistors and the
possibility of installing a ther-
mostat for overtemperature
protection. When equipped
with a pilot duty switch and
connected to a mechanical
relay a hybrid function is
achieved, and it is no longer
necessary to use a heatsink.
Solid State Relays
Industrial, 3-Phase ZS
Types RZ .... HD P., RZ .... HA P.
3-phase Solid State Relay
Zero switching
Rated operational current: 3 x 10, 25, 40 or 55 AACrms
Rated operational voltage: Up to 690 VACrms
Control voltage 10 to 40 VDC or 20 to 265 VAC/DC
Transient overvoltage protection built-in
Prepared for overtemperature protection
Pilot duty switch available as an option
IP 10 back-of-hand protection
Ordering Key
Product Description
Type Selection
Switching
Rated
Rated
Control
Option 1
Option 2
mode
operational
operational
voltage
(protection)
(pilot duty switch)
voltage
current
RZ
40: 400 VACrms
10: 10 AACrms
HD: 10 - 40 VDC
P: Protected
0: Without PDS
48: 480 VACrms
25: 25 AACrms
HA: 20 - 265 VAC/DC J: Unprotected
1: 1 A/230 VAC
40: 40 AACrms
2: 1 A/24 VDC
55: 55 AACrms
RZ 4010 HD P.
RZ 4025 HD P.
RZ 4040 HD P.
RZ 4055 HD P.
RZ 4010 HA P.
RZ 4025 HA P.
RZ 4040 HA P.
RZ 4055 HA P.
RZ 4810 HD P.
RZ 4825 HD P.
RZ 4840 HD P.
RZ 4855 HD P.
RZ 4810 HA P.
RZ 4825 HA P.
RZ 4840 HA P.
RZ 4855 HA P.
Selection Guide
Control
voltage
Rated opera-
tional voltage
Rated operational current
10 AACrms
25 AACrms
40 AACrms
55 AACrms
20 - 265 VAC/DC
10 - 40 VDC
20 - 265 VAC/DC
480 VACrms
400 VACrms
10 - 40 VDC
1
Protection: unprotected version only available on request.
2
Pilot duty switch: add suffix 1 or 2 for pilot duty switch (e.g. 1 A/230 VAC). Example: RZ 4025 HDP1.
Ordering example for RZ-relay with built-in varistors and pilot duty switch: RZ 4025 HDP1.
Options
R Z 48 55 HA P0
Specifications are subject to change without notice (10.05.2002)
2-123
General Specifications
RZ .... HD P., RZ .... HA P.
Input Specifications
RZ .... HD P0
RZ .... HA P0
RZ .... HD P2
RZ .... HA P1
Control voltage range
10 to 40 VDC
20 to 265 VAC/DC
10 to 40 VDC
20 to 265 VAC/DC
FELV-SELV-PELV
FELV-SELV-
FELV-SELV-PELV
FELV-SELV-
PELV/line
PELV/line
Pick-up voltage
10 VDC
20 VAC/DC
10 VDC
20 VAC/DC
Drop-out voltage
3 VDC
5 VAC/DC
3 VDC
5 VAC/DC
Input current
18 mADC @ 10 V
in
20 mA AC/DC
18 mADC @ 10 V
in
20 mA AC/DC
22 mADC @ 24 V
in
30 mADC @ 24 V
in
28 mADC @ 40 V
in
40 mADC @ 40 V
in
Response time pick-up
Power output
10 ms
10 ms
10 ms
10 ms
Pilot duty switch
-
-
10 ms
10 ms
Response time drop-out
Power output
20 ms
40 ms
100 ms
100 ms
Pilot duty switch
-
-
10 ms
20 ms
RZ ..10 .. P.
RZ ..25 .. P.
RZ ..40 .. P.
RZ ..55 .. P.
Rated operational current
AC51 ratings
10 Arms
25 Arms
40 Arms
55 Arms
AC53a ratings
2 Arms
5 Arms
8 Arms
15 Arms
Minimum operational current
100 mArms
100 mArms
200 mArms
200 mArms
Rep. overload current t=1 s
18 Arms
37 Arms
60 Arms
85 Arms
t=5 s
15 Arms
32 Arms
50 Arms
70 Arms
Non-rep. surge current t = 20 ms
120 A
p
230 A
p
300 A
p
550 A
p
Off-state leakage current
10 mArms
10 mArms
10 mArms
10 mArms
I
2
t for fusing t = 1-10 ms
72 A
2
s
265 A
2
s
450 A
2
s
1500 A
2
s
Critical dI/dt
50 A/s
50 A/s
100 A/s
100 A/s
On-state voltage drop
1.6 Vrms
1.6 Vrms
1.6 Vrms
1.6 Vrms
Critical dV/dt off state
500 V/s
500 V/s
500 V/s
500 V/s
Output Specifications
Star
(load connected to neutral)
Delta
RZ 40.. .. P.
RZ 48.. .. P.
Operational voltage ranges
Line to neutral
12 to 440 VACrms
12 to 530 VACrms
Line to line
12 to 400 VACrms
12 to 660 VACrms
(load connected to neutral)
Non-rep. peak voltage
1000 V
p
1200 V
p
Varistor voltage
420 VACrms
510 VACrms
Operational frequency range
45 to 65 Hz
45 to 65 Hz
Overvoltage category
III
III
Pollution degree
3
2
Approvals
CSA, UL
CSA, UL
CE-marking
Yes
Yes
2-124
Specifications are subject to change without notice (30.11.2001)
RZ .. .. HD P., RZ .. .. HA P.
RZ ..10 .. ..
RZ ..25 ..
RZ ..40 ..
RZ ..55 ..
Operating temperature
-20 to +70C
-20 to +70C
-20 to +70C
-20 to +70C
(-4 to +158F)
(-4 to +158F)
(-4 to +158F)
(-4 to +158F)
Storage temperature
-40 to +100C
-40 to +100C
-40 to +100C
-40 to +100C
(-40 to +212F)
(-40 to +212F)
(-40 to +212F)
(-40 to +212F)
Junction temperature
125C (
257F)
125C (
257F)
125C (
257F)
125C (
257F)
R
th
junction to case 3-phase
0.75 K/W
0.5 K/W
0.3 K/W
0.2 K/W
1-phase
2.25 K/W
1.5 K/W
1.0 K/W
0.6 K/W
Thermal Specifications
Option 1 - Overvoltage Protection
Transients are generated by
overvoltage of atmospheric
origin on the public distribu-
tion system or when motors,
solenoids, valves, lights, heat-
ers or any electrically oper-
ated equipment are con-
nected to or disconnected
from the power source. To
perform a transient voltage
clipping or suppression func-
tion on the AC-load side of an
RZ relay, metal oxide varistors
(MOV) are normally built in.
MOV's assume a low imped-
ance state when their voltage
threshold is exceeded. Car-
lo Gavazzi SSR's are option-
ally available without varis-
tors if no transient protec-
tion is required.
Insulation
ACrms
ACrms
3 cycles
1 min
Rated insulation voltage
Input to output
5660 V
4000 V
Input to pilot duty switch
5660 V
4000 V
Input to heatsink
5660 V
4000 V
Rated insulation voltage
Output to heatsink
4240 V
4000 V
Output to output
4240 V
4000 V
Output to pilot duty switch
4240 V
4000 V
Option 2 - Pilot Duty Switch
The RZ relay is available ei-
ther with or without pilot duty
switch (PDS).
Equipped with the PDS and
connected to a mechanical
relay, a hybrid function is
achieved and it is no longer
necessary to use a heatsink.
The built-in timing function of
the relay will ensure that the
switching on and switching
off is carried out by the Solid
State Relay. As soon as the
control voltage is applied, the
power output turns on and
the full voltage is applied to
the load. After max. 10 ms,
the PDS will activate the con-
tactor shunting the SSR in
about 20 ms. As the load is
already under full voltage, the
contactor does not take any
high inrush currents. It only
bypasses the SSR. When the
control voltage is removed,
the pilot duty switch will first
disconnect the contactor. Af-
ter a delay of min. 30 ms, the
load will be switched off. The
power outputs will be off max.
100 ms after the input control
voltage has been removed.
PDS 01
PDS 02
Operational voltage range
24 to 280 VACrms
5 to 24 VDC
Rated operational current
1 Arms @ 40C
1 A @ 40C
0.85 Arms @ 50C
0.85 A @ 50C
0.7 Arms @ 60C
0.7 A @ 60C
0.55 Arms @ 70C
0.5 A @ 70C
Non-rep. surge current
t = 20 ms
30 A
p
-
Rep. overload current t = 1s
5 Arms
2 A DC
I
2
t for fusing t=1-10 ms
5 A
2
s
-
Off-state leakage current
1 mArms
1 mA DC
On-state voltage
1.2 VACrms
1.5 VDC
Control voltage
Shunting
contactor
Power output
td
1
100 ms
td
1
10 ms
td
2
20 ms
td
2
30 ms
td
1
= time delay semiconductor
td
2
= time delay contactor
Heatsink Dimensions
(load current versus ambient temperature)
RZ .... HD P., RZ .... HA P.
12
11
10
9
8
7
6
5
4
3
2
1.7
1.4
1.2
1.0
0.7
41
2.0
1.7
1.4
1.2
0.9
37
2.3
2.0
1.7
1.4
1.1
33
2.7
2.4
2.0
1.7
1.3
29
3.1
2.7
2.3
1.9
1.5
25
3.7
3.2
2.7
2.3
1.8
21
4.4
3.8
3.3
2.7
2.2
18
5.4
4.7
4.1
3.4
2.7
15
7.0
6.1
5.2
4.3
3.5
12
9.5
8.3
7.1
5.9
4.7
8
14.7
12.9
11.0
9.2
7.3
5
20
30
40
50
60
Load
current [A]
Thermal resistance
[K/W]
T
A
90C
Temp. pro-
tection [C]
Power
dissipation
[W]
Ambient temp [C]
RZ ..10.. ..
RZ ..40.. ..
Power
dissipation
[W]
0.26
-
-
-
-
165
0.36
0.29
-
-
-
143
0.49
0.40
0.32
-
-
122
0.65
0.55
0.46
0.36
0.26
103
0.87
0.76
0.64
0.52
0.40
84
1.2
1.1
0.90
0.75
0.60
67
1.5
1.4
1.2
1.0
0.78
51
2.2
2.0
1.7
1.4
1.1
37
3.5
3.1
2.7
2.2
1.8
23
7.4
6.5
5.6
4.6
3.7
11
20
30
40
50
60
Load
current [A]
Thermal resistance
[K/W]
Temp. pro-
tection [C]
40
36
32
28
24
20
16
12
8
4
Ambient temp [C]
T
A
80C
70C
90C
RZ ..25.. ..
Power
dissipation
[W]
0.46
0.36
0.26
-
-
101
0.62
0.50
0.39
0.28
-
88
0.81
0.68
0.55
0.42
0.28
76
1.0
0.91
0.76
0.60
0.44
64
1.4
1.2
1.0
0.85
0.66
53
1.9
1.6
1.4
1.1
0.95
43
2.4
2.1
1.8
1.5
1.2
33
3.4
3.0
2.5
2.1
1.7
24
5.3
4.7
4.0
3.3
2.6
15
11.2
9.8
8.4
7.0
5.6
7
20
30
40
50
60
Load
current [A]
Thermal resistance
[K/W]
Temp. pro-
tection [C]
Ambient temp [C]
T
A
90C
80C
70C
RZ ..55.. ..
-
-
-
-
-
215
0.28
-
-
-
-
191
0.35
0.29
-
-
-
167
0.45
0.38
0.31
-
-
145
0.58
0.50
0.42
0.33
0.25
123
0.75
0.65
0.55
0.46
0.36
103
0.96
0.84
0.72
0.60
0.48
83
1.3
1.1
0.93
0.78
0.62
65
1.8
1.5
1.3
1.1
0.85
47
2.7
2.4
2.0
1.7
1.4
30
5.5
4.8
4.1
3.5
2.8
15
20
30
40
50
60
Load
current [A]
Thermal resistance
[K/W]
T
A
Temp. pro-
tection [C]
Power
dissipation
[W]
Ambient temp [C]
55
50
45
40
35
30
25
20
15
10
5
80C
90C
25
22.5
20
17.5
15
12.5
10
7.5
5
2.5
Carlo Gavazzi Heatsink
(see Accessories)
No heatsink required
RHS 300 Assy or backplate
RHS 301 Assy
RHS 301 F Assy
Consult your distributor
Thermal resistance
R
th s-a
> 8.0
K/W
5.0 K/W
0.8
K/W
0.25 K/W
< 0.25 K/W
Heatsink Selection
Compare the value found in the load current versus tempe-
rature chart with the standard heatsink values and select the
heatsink with the next lower value.
It is recommended to protect the Solid State Relay against
overheating. Therefore the chart also states the maximum
switching temperature (70, 80 or 90C) for the optional
temperature limit switch.
Specifications are subject to change without notice (30.11.2001)
2-125
2-126
Specifications are subject to change without notice (30.11.2001)
RZ .. .. HD P., RZ .. .. HA P.
Dimensions
Functional Diagram
Housing Specifications
Accessories
Protection cover
For further information refer
Heatsinks
to "General Accessories".
Varistors
Fuses
Temperature limit switch
Load output
Mains input
Control
inputs
N
Weight
Approx. 380 g
Material
Noryl, glass reinforced
Colour
Black
Base plate
Aluminum, nickel-plated
Potting compound
Polyurethane, black
Relay
Mounting screws
M5
Mounting torque
1.5 Nm
Control terminal
Mounting screws
M3
Mounting torque
0.5 Nm
Wire size
Max.
2 x 2.5 mm
2
Min.
2 x 1.0 mm
2
Power terminal
Mounting screws
M5
Mounting torque
2.5 Nm
2 x 6 mm
2
(AWG8)
Wire size
Max.
2 x 6 mm
2
Min.
2 x 1 mm
2
Heat
Sink
Compound
RZ .. .. HD P., RZ .. .. HA P.
Applications
Selection Guide
Direct switching
Selection Guide
Delta switching
Selection Guide
380/400 V
Motor size
[kW]
[Arms]*
1.1
1.5
1.5
2.1
2.2
3.0
3.0
4.0
4.0
4.6
5.5
6,2
7.5
8.7
11.0
12.1
15.0
16.2
* I
/
3.
Switching motor loads
Control
Control
Motor connections
Motor start with shunting by electromechanical relay
(no heatsink needed)
Direct switching
Control
10 25 40 55
Relay type [A]
10 25 40 55
Relay type [A]
10 25 40 55
[kW]
[Arms]
3.0
7.0
5.5
11.9
7.5
15.3
15
29
Relay type [A]
380/400 V
Motor size
[kW]
[Arms]
0.25
0.8
0.37
1.1
0.55
1.5
0.75
1.9
1.1
2.6
1.5
3.5
2.2
4.7
3.0
6.2
4.0
8.1
5.5
10.7
7.5
15.0
380/400 V
Motor size
Specifications are subject to change without notice (30.11.2001)
2-127
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