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Unison Model 901
UNI 901 RDA 60 90 01 CU2 + B-48 HEAT SINK + DIN RAIL with dimensions
Dimensions and terminals, from Unison's catalogue photograph of UNI 901 RDA 60 90 01 CU2 + B-48 HEAT SINK + DIN RAIL.

Model 901 · Random DC to AC Solid State Relay · UL approved

UNI 901 RDA 60 90 01 CU2 + B-48 HEAT SINK + DIN RAIL

90 A · Random solid state relay.

Specifications

Lowest thickness 19.5mm with 2mm Copper Plate
Input
4-32VDC / 4-16mA, Green LED indication
Output
24-600VAC (47-63 Hz), 90 Amp
Instant Switching (Random SSR) design
PIV
1600, I²T : 7200A²S for 9.6mS
Body insulation
6kV for 1min
I/P. to O/P. insulation
8kV for 1min
Inbuilt surge voltage protection of 2700Vrms
Short Circuit Protection by “B” Curve DP MCB
Resistive load Max 63 A SC protect by 63 A DP MCB

Load current by heat sink

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

B-4836 Amp
B-7260 Amp
A-10065 Amp
A-190 Heat Sink without Fan36 A x 3 = 108 Amp
(36 A / phase across 3 phases)
A-190 Heat Sink with Fan40 A x 3 = 120 Amp
(40 A / phase across 3 phases)
Derating Table: Rated load current at 40 °C ambient
Heat Sink / MountingRated Load Current @ 40 °C
B-4836 Amp
B-7260 Amp
A-10065 Amp
A-190 Heat Sink without Fan36 A x 3 = 108 Amp
A-190 Heat Sink with Fan40 A x 3 = 120 Amp