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Unison Model 803 Slim
UNI 803 RDA 58 90 01 + B-24 HEAT SINK + DIN RAIL with dimensions
Dimensions and terminals, from Unison's catalogue photograph of UNI 803 RDA 58 90 01 + B-24 HEAT SINK + DIN RAIL.

Model 803 Slim · Slim Random DC to AC Solid State Relay · UL approved

UNI 803 RDA 58 90 01 + B-24 HEAT SINK + DIN RAIL

90 A · Random solid state relay.

Specifications

Input
4-32VDC/4-16mA
Input LED Indication
Output
24-580(47-63 Hz), 90 Amp
PIV
1400, I²T : 7200A²S for 9.6mS
Random Switching
Body insulation
4kV for 1min
I/P. to O/P. insulation
8kV for 1min
Short Circuit Protection by “B” Curve DP MCB
63Amp Load Current/63Amp “B” Curve DP MCB
Short Circuit Current Rating
10kA for <3mS

Load current by heat sink

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

B-2434 Amp
B-4818 A x 2 = 36 Amp
(18 A / phase across 2 phases)
B-7220 A x 3 = 60 Amp
(20 A / phase across 3 phases)
B-9620 A x 4 = 80 Amp
(20 A / phase across 4 phases)
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-2434 Amp
B-4818 A x 2 = 36 Amp
B-7220 A x 3 = 60 Amp
B-9620 A x 4 = 80 Amp
A-190 Heat Sink without Fan36 A x 3 = 108 Amp
A-190 Heat Sink With Fan40 A x 3 = 120 Amp