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Case
Weight: about 380 g
Case material: Noryl, glass reinforced
Colour:Black
Base plate: Nichel plated alumium
Potting compound: Black polyuretan
Relay fixing
fixing screws:
torque wrench setting: ≤ 1,5 Nm
Control terminal
mounting screws:
torque mounting:
Wire size:
Max. 2x2,5mm
Min.
Power terminals
mounting screws:
torque mounting:
2x6mm
Load: engines
1) Direct switching
2) Triangle switching
Load: Resistances
wire size:
Overvoltage protection
Noises, or transitories, are generally
caused by lightnings on the public
distribution system.
Other noises might be caused by
M5
engines, solenoids, valves, lights, heating
equipments or by switching on or off
other electric devices.
M3
In order to avoid transitories some metal
≤ 0,5 Nm
oxide varistors (MOV) are mounted
2
inside RZ relay.
2x1,0mm
2
MOVs are in a low impedance status
when their voltage threshold is
M5
exceeded.
≤ 2,5 Nm
2
(AWG8)
ELECTRICAL CONNECTIONS
Resistive load
star or delta
Max. 2x6mm
2
Min. 2x1mm
2
Selection guide
380/400 V
Power Eng.
Tipo di relè [A]
[kW]
[Arms]
10 25 40 55
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
Guida alla selezione
380/400 V
Tipo di relè [A]
Power Eng
10 25 40 55
[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.
R
6
Solid State Relay Dissipated Power
Calculation
Three-phase relay
Pd = 3 x 1,6 x I Line
ILine = three-phase load current
Heatsink Thermal Resistance
Calculation
Rth = 110°C - max. amb.T
Pd
with Pd = dissipated power
Max amb.T = max air temperature inside
the electrical cabinet.
Use a heatsink with thermal resistance
inferior to the calculated one (Rth)
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