Carlo Gavazzi RZ3A Specifications
RZ3A
Industrial, 3-phase zero switching
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. The built-in varistor secures transient
protection for heavy industrial applications.
For higher reliability and load cycle capability three
semiconductor power units are soldered directly
on to the direct copper bonded (DCB) substrate.
AC- or DC-controlled versions are available. Builtin LED status indication for applied control voltage
and overtemperature alarm (optional).
The series covers a range of load currents up to
75 AACrms.
Main features
• 3-phase Solid State Relay
• Zero switching
• Rated operational current: 3 x 25, 55 or 75 A
• Rated operational voltage: Up to 690 VAC
• Control voltage, 4-32 VDC or 24-275 VAC
• Integral snubber network
• Built-in varistor
• Over-temperature protection option with alarm output
• IP 10 back-of-hand protection
• LED indication of control input and over-temperature
alarm status
Applications
Plastic extrusion machines, thermoforming machines, blow moulding machines, coee machines, electrical
ovens, vending machines, soldering ovens, dryers, climatic chambers, air handling units, plastic sealing
machines, shrink tunnels, etc.
Main functions
• 3-pole switching AC solid state relay
RZ3A DS ENG09/02/2017
Carlo Gavazzi LTD
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References
Order code
RZ3A
Enter the code entering the corresponding option instead of
Code Option Description Notes
RZ - Solid State Relay
3 - Number of poles
A - Switching mode: zero switching
40 Rated operational voltage: 400 VACrms
48 Rated operational voltage: 480 VACrms
60 Rated operational voltage: 600 VACrms
69 Rated operational voltage: 690 VACrms
D Control voltage: 4 - 32 VDC
A Control voltage: 24-275 VAC / 24-50 VDC
25 Rated operational current: 3 x 25 AACrms
55 Rated operational current: 3 x 55 AACrms
75 Rated operational current: 3 x 75 AACrms
RZ3A
P Over-temperature protection and alarm output Available only for A and D input
Selection guide
Rated operational
voltage
400 VACrms
480 VACrms
600 VACrms
690 VACrms
Control voltage
4-32 VDC RZ3A40D25 RZ3A40D55 RZ3A40D75
24-275 VAC/24-50
VDC
4-32 VDC RZ3A48D25 RZ3A48D55 RZ3A48D75
24-275 VAC/24-50
VDC
4-32 VDC RZ3A60D25 RZ3A60D55 RZ3A60D75
24-275 VAC/24-50
VDC
4-32 VDC - - RZ3A69D75
24-275 VAC/24-50
VDC
3 x 25 A 3 x 55 A 3 x 75 A
RZ3A40A25 RZ3A40A55 RZ3A40A75
RZ3A48A25 RZ3A48A55 RZ3A48A75
RZ3A60A25 RZ3A60A55 RZ3A60A75
- - RZ3A69A75
Rated operational current
Notes
Over-temperature protection and alarm output: add sux P to include over-temperature protection and alarm
output.
Example: RZ3A60D75P. Not available on 690VACrms versions.
RZ3A DS ENG09/02/2017
Carlo Gavazzi LTD
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CARLO GAVAZZI compatible components
Purpose Component name/code Notes
Heatsinks RHS Heatsinks and fans
Thermal pad RZHT Packing qty. 10 pcs.
Further reading
Information Where to nd it
Online heatsink selector tool http://www.productselection.net/heatsink/heatsinkSelector.php?LANG=UK
RZ3A
RZ3A DS ENG09/02/2017
Carlo Gavazzi LTD
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