Solid State Relays
Industrial, 3-Phase ZS
Type RZ3A
• 3-phase Solid State Relay
• Zero switching
• Rated operational current: 3 x 25, 40, 55 or 75 A
• Rated operational voltage: Up to 600 VAC
• Control voltage 5 VDC, 4-32 VDC or 24-275 VAC
• Integral snubber network
• Over-temperature protection option with alarm output
• IP 10 back-of-hand protection
• LED indication of control input and over-temperature
alarm status
Product Description
A Solid State Relay family
designed to switch various
loads such as heating elements, motors and transformers. The relay is capable of
switching high voltages up to
600 VACrms.
Ordering Key
strate.
AC- or DC-controlled versions
are available. Built-in LED status indication for applied control voltage and over-temperature alarm (optional). A version
that can be controlled with 5
For higher reliability and load VDC @ 15 mA (max) is also
cycle capability three semi- available (LD).
conductor power units are soldered directly on to the direct The series covers a range of
copper bonded (DCB) sub- load currents up to 75 AACrms.
RZ 3 A 60 D 75 P
Solid State Relay
Number of poles
Switching mode
Rated opertional voltage
Control voltage
Rated opertional current
Options
Type Selection
Switching
mode
Rated operational
voltage
Rated operational
current
Control
voltage
Option
A: Zero Switching
40: 400 VACrms
60: 600 VACrms
25: 3 x 25 AACrms
40: 3 x 40 AACrms
55: 3 x 55 AACrms
75: 3 x 75 AACrms
LD: 5 VDC
D: 4-32 VDC
A: 24-275 VAC/24-50 VDC
P: Overtemperature
protection and
alarm output
(available only for A and D input)
Selection Guide
Rated operational Control
voltage
voltage
Rated operational current
3 x 25 A
3 x 40 A
3 x 55 A
3 x 75 A
400 VACrms
RZ3A40LD25
RZ3A40D25
RZ3A40A25
RZ3A60LD25
RZ3A60D25
RZ3A60A25
RZ3A40LD55
RZ3A40D55
RZ3A40A55
RZ3A60LD55
RZ3A60D55
RZ3A60A55
RZ3A40LD75
RZ3A40D75
RZ3A40A75
RZ3A60LD75
RZ3A60D75
RZ3A60A75
600 VACrms
5 VDC
4-32 VDC
24-275 VAC/24-50 VDC
5 VDC
4-32 VDC
24-275 VAC/24-50 VDC
RZ3A40LD40
RZ3A40D40
RZ3A40A40
RZ3A60LD40
RZ3A60D40
RZ3A60A40
Notes
Over-temperature protection and alarm output: add suffix P to include over-temperature protection and alarm output.
Example: RZ3A60D75P. Not available with “LD” type control.
Insulation
Rated insulation voltage
Input to output
Output to case
Thermal Specifications
≥ 4000 VACrms
≥ 4000 VACrms
Specifications are subject to change without notice (30.09.2005)
Operating temperature
Storage temperature
Junction temperature
-30° to +80°C (-22° to +158° F)
-40° to +100°C (-40° to + 212° F)
≤ +125°C (+ 257˚F)
1
RZ3A
General Specifications
RZ3A40..
24-440 VAC
850 Vp
45 to 65 Hz
III
3
UL, cUL, CSA
Yes
Operational voltage range
Non-rep. peak voltage
Operational frequency range
Overvoltage category
Pollution degree
Approvals
CE-marking
RZ3A60..
42-660 VAC
1200 Vp
45 to 65 Hz
III
3
UL, cUL,CSA
Yes
Input Specifications
Control voltage range
Pick-up voltage
Drop-out voltage
Input current
Response time pick-up
Power output = 50 Hz
Response time drop-out
Power output = 50 Hz
RZ3A..LD..
RZ3A..D..
RZ3A..A..
5 VDC
4.5 VDC
1.2 VDC
≤ 15 mA
4-32 VDC
3.8 VDC
1.2 VDC
≤ 23 mA
24-275 VAC/24-50 VDC
18 VAC/20 VDC
9 VAC/DC
≤ 15 mA
10 ms
10 ms
20 ms
10 ms
10 ms
30 ms
All data specified at Ta=25°C
Output Specifications
Rated operational current
AC51 @ Ta=25°C
AC53a @ Ta=25°C
Minimum operational current
Rep. overload current t=1 s
Non-rep. surge current t = 10 ms
Off-state leakage current
I2t for fusing t = 1-10 ms
Critical dI/dt @ 50 Hz
On-state voltage drop
Critical dV/dt off-state
RZ3A..25..
RZ3A..40..
RZ3A..55..
RZ3A..75..
25 Arms
5 Arms
150 mArms
37 Arms
300 Ap
< 3 mArms
450 A2s
≥ 50 A/µs
≤ 1.6 Vrms
≥ 500 V/µs
40 Arms
8 Arms
150 mArms
60 Arms
390 Ap
< 3 mArms
760A2s
≥ 50 A/µs
≤ 1.6 Vrms
≥ 500 V/µs
55 Arms
15 Arms
150 mArms
< 125 Arms
580 Ap
< 3 mArms
1680 A2s
≥ 50 A/µs
≤ 1.6 Vrms
≥ 500 V/µs
75 Arms
20 Arms
150 mArms
< 150 Arms
1150 Ap
< 3 mArms
6600 A2s
≥ 50 A/µs
≤ 1.6 Vrms
≥ 500 V/µs
Over-temperature Protection (Option: ...P)
≥ 20ms
SSR Input*
Green LED
SSR Output
Over-temperature
sensing
Red LED
Over-temperature
detection
Over-temperature protection is ON
SSR output disabled
Closed
Alarm status
Open
*After over-temperature condition is removed, SSR can be reset by switching OFF the control input for more than 20 ms and switching back ON: this will
*switch ON the SSR output
2
Specifications are subject to change without notice (30.09.2005)
RZ3A
Heatsink Dimensions
(load current versus ambient temperature)
RZ3..25
RZ3 ..40
Load
current [A]
Power
dissipation [W]
Thermal
resistance [K/W]
Load
current [A]
Power
dissipation [W]
Thermal
resistance [K/W]
25.0
0.44
0.34 0.23
0.12
0.01
--
--
92
40.0
0.54
0.44 0.34
0.24
0.14
0.04
--
101
22.5
0.62
0.49 0.37
0.24
0.12
--
--
80
36.0
0.66
0.55 0.44
0.33
0.22
0.11
--
91
20.0
0.84
0.69 0.54
0.40
0.25
0.10
--
68
32.0
0.81
0.68 0.56
0.43
0.31
0.18 0.06
80
17.5
1.12
0.95 0.78
0.60
0.43
0.25 0.08
58
28.0
1.00
0.86 0.72
0.57
0.43
0.29 0.14
70
15.0
1.51
1.30 1.09
0.88
0.67
0.46 0.25
47
24.0
1.26
1.09 0.93
0.76
0.59
0.42 0.25
60
12.5
2.06
1.80 1.54
1.27
1.01
0.75 0.48
38
20.0
1.62
1.42 1.21
1.01
0.81
0.61 0.41
49
10.0
2.75
2.40 2.06
1.72
1.37
1.03 0.69
29
16.0
2.03
1.78 1.52
1.27
1.02
0.76 0.64
39
7.5
3.83
3.35 2.87
2.39
1.91
1.43 0.96
21
12.0
2.72
2.38 2.04
1.70
1.36
1.02 1.03
29
5.0
6.01
5.26 4.51
3.76
3.01
2.25 1.50
13
8.0
4.11
3.59 3.08
2.57
2.05
1.54 1.81
19
2.5
12.62 11.04 9.46
7.89
6.31
4.73 3.15
6
4.0
8.26
7.22 6.19
5.16
4.13
3.10 4.14
10
50
60
20
30
40
50
60
70
TA
80
20
30
40
70
Ambient temp [°C]
TA
Ambient temp [°C]
RZ3 ..75
RZ3 ..55
Load
current [A]
Power
dissipation [W]
Thermal
resistance [K/W]
0.22 0.17
0.12
0.07
0.02
--
201
70.0
0.32
0.27 0.21
0.16
0.10
0.05
--
184
65.0
0.38
0.32 0.26
0.20
0.14
0.08 0.02 167
60.0
0.44
0.38 0.31
0.25
0.18
0.11 0.05 151
55.0
0.52
0.45 0.38
0.30
0.23
0.16 0.08 136
50.0
0.62
0.54 0.45
0.37
0.29
0.21 0.12 121
45.0
0.74
0.64 0.55
0.46
0.36
0.27 0.17 106
40.0
0.87
0.76 0.65
0.54
0.43
0.32 0.22
92
35.0
1.01
0.89 0.76
0.63
0.51
0.38 0.25
79
30.0
1.21
1.06 0.91
0.76
0.60
0.45 0.30
66
25.0
1.49
1.30 1.11
0.93
0.74
0.56 0.37
54
20.0
1.90
1.67 1.43
1.19
0.95
0.71 0.48
42
TA
15.0
2.60
2.28 1.95
1.63
1.30
0.98 0.65
31
Ambient temp [°C]
10.0
4.01
3.51 3.01
2.51
2.01
1.50 1.00
20
5.0
8.24
7.21 6.18
5.15
4.12
3.09 2.06
10
50
60
0.23 0.17
0.11
0.05
--
--
164
50.0
0.36
0.29 0.22
0.16
0.09
0.02
--
148
45.0
0.44
0.36 0.29
0.21
0.14
0.06
--
133
40.0
0.54
0.46 0.37
0.29
0.20
0.12 0.03 118
35.0
0.67
0.58 0.48
0.38
0.28
0.19 0.09 103
30.0
0.85
0.74 0.62
0.51
0.39
0.28 0.16
87
25.0
1.10
0.96 0.82
0.68
0.55
0.41 0.27
73
20.0
1.38
1.21 1.04
0.87
0.69
0.52 0.35
58
15.0
1.85
1.62 1.39
1.16
0.93
0.70 0.46
43
10.0
2.80
2.45 2.10
1.75
1.40
1.05 0.70
29
5.0
5.62
4.92 4.21
3.51
2.81
2.11 1.40
14
2.5
11.26 9.85 8.45
7.04
5.63
4.22 2.82
7
50
60
40
70
Power
dissipation [W]
Thermal
resistance [K/W]
0.27
0.29
30
Load
current [A]
75.0
55.0
20
80
80
Heatsink Selection
20
30
40
70
80
TA
Ambient temp [°C]
Carlo Gavazzi Heatsink
(see Accessories)
No heatsink required
RHS 300 Assy or backplate
RHS 112A Assy
RHS 301 Assy
RHS 112A F Assy
RHS 301 F Assy
Consult your distributor
Thermal resistance
Rth s-a
> 8.0
5.0
1.1
0.8
0.4
0.25
< 0.25
K/W
K/W
K/W
K/W
K/W
K/W
K/W
Specifications are subject to change without notice (30.09.2005)
Alarm Output Specifications
Collector - emitter voltage
Emitter - collector voltage
Collector current
Delay time on reset
35 Vdc
6 Vdc
50 mA
20 ms
3
RZ3A
Connection Diagrams
Terminal Wiring
A1 (~) (+)
Common Alarm Wiring
T1
Regulation
ZC
Output A
B1
A1
B2
A2
B1
A1
B2
A2
B1
A1
B2
A2
L1
T2
ZC
Control
Input
AC/DC
Output B
L2
T3
ZC
Output C
A2 (~) (-)
L3
B1 (+)
Alarm
Output
Over Temp
Circuit
Logic
Input
B2 (-)
Housing Specifications
Approx. 380 g
Noryl
73.5
4xM4
6xM5
41
Aluminum, nickel-plated
Copper, nickel-plated
Polyurethane
12
M5
≤ 1.5 Nm
5.3
B1
M5
≤ 2.5 Nm
2 x 6 mm2 (AWG8)
2 x 1 mm2
Heatsink
Compound
T1 T2 T3
M4
≤ 0.5 Nm
2 x 2.5 mm2 (AWG14)
2 x 1 mm2
A2
L1 L2 L3
A1
103
92
Weight
Material
Base plate
25, 40, 55A
75A
Potting compound
Relay
Mounting screws
Mounting torque
Control terminal
Mounting screws
Mounting torque
Wire size
Max.
Min.
Power terminal
Mounting screws
Mounting torque
Wire size
Max.
Min.
Dimensions
B2
47.6
Relay On LED
Over-temperature Alarm Trip LED (suffix “P” option)
All dimensions in mm
Alarm Output Connection
Active Low
Active High
VCC
VCC
B1
Forward voltage ≤35 VDC
Reverse voltage ≤6 VDC
Through current ≤50mA
Alarm reset: interrupt control
input for more than 20ms
B2
RZ3A..
Alarm Output
4
Logic Input
Logic Input
Specifications are subject to change without notice (30.09.2005)
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