Relays
Model 905 3-Phase
Three-phase switching, with overload protection built in.
5–90 A
Load current
5
Series
13
Models
Choose your switching
Choose Your Switching.
Every Model 905 3-Phase type side by side, from Unison's own specifications.
| Type | Input | Output | Current | Best for |
|---|---|---|---|---|
| Zero-cross | 80-280VAC, 5-20mA, Plug in Type | AC | 25–90 A | Resistive heating |
| Standard | — | 24-480 VAC (47-63 Hz), 05Amp | 5–15 A | — |
The range
5 Series, 13 Models.
- 3 models · 25–40 A
3-PHASE AC to AC Solid State Relay
View models →
- 3 models · 25–50 A
3-PHASE DC to AC Solid State Relay
View models →
- 3 models · 5–15 A
3-PHASE Forward DC to AC Over Load Solid State Relay
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- 3 models · 5–15 A
3-PHASE Forward Reverse DC to AC Solid State Relay
View models → - 1 models · 90 A
3-PHASE Universal to AC Solid State Relay
View models →
Rated with every heat sink
Know the Current Before You Build.
Load current at 40 °C for UNI 905 3PH ZAA 48 50 28 + A-100 HEAT SINK + DIN RAIL, from Unison's derating tables.
Find Your Heat Sink →E-75Upto 3 HP Motor
A-100Upto 7.5 HP Motor
A-10021Amp X 3=63Amp
(21 A / phase across 3 phases)
| Heat Sink / Mounting | Rated Load Current @ 40 °C |
|---|---|
| E-75 | Upto 3 HP Motor |
| A-100 | Upto 7.5 HP Motor |
| A-100 | 21Amp X 3=63Amp |
