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Unison Controls
Unison Model 905 3-Phase
UNI 905 3PH ZAA 48 50 28 + A-100 HEAT SINK + DIN RAIL with dimensions
Dimensions and terminals, from Unison's catalogue photograph of UNI 905 3PH ZAA 48 50 28 + A-100 HEAT SINK + DIN RAIL.

Model 905 3-Phase · 3-PHASE AC to AC Solid State Relay

UNI 905 3PH ZAA 48 50 28 + A-100 HEAT SINK + DIN RAIL

40 A · Zero-cross solid state relay.

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Specifications

Input
80-280VAC, 5-20mA, Plug in Type
Input LED Indication
Green
3PhaseOutput
24-480VAC (47-63 Hz), 40Amp
3PhaseOutput
24-480VAC (47-63 Hz), 40Amp
Body isolation
4kV for 1min
I/P. to O/P. isolation
6kV for 1min
Inbuilt surge voltage protection of 2700Vrms
Zero Cross Over SSR
IP 20 protection Flaps Cover
Inbuilt Snubber

Load current by heat sink

Rated at 40 °C ambient, from Unison's derating tables.

E-75Upto 3 HP Motor
A-100Upto 7.5 HP Motor
A-10021Amp X 3=63Amp
(21 A / phase across 3 phases)
Derating Table: Rated load current at 40 °C ambient
Heat Sink / MountingRated Load Current @ 40 °C
E-75Upto 3 HP Motor
A-100Upto 7.5 HP Motor
A-10021Amp X 3=63Amp

Same series

3-PHASE AC to AC Solid State Relay