

Model 803 Slim · Zero-cross Slim DC to AC Solid State Relay
UNI 803 ZDA 58 150 01 + B72 HEAT SINK + DIN RAIL
150 A · Zero-cross solid state relay.
Specifications
- Slim width 23.6 mm design, Zero cross over SSR
- Input
- 4-32VDC / 4-16mA, RED LED Indication
- Output
- 24-580VAC(47-63 Hz), 150 Amp
- PIV
- 1400, I²T : 15000A²S for 9.6mS
- Body insulation
- 4kV 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 80 A SC protect by 80 A 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-7260 Amp
B-9680 Amp
A-190 Heat Sink without Fan40 A x 3 = 120 Amp
(40 A / phase across 3 phases)
A-190 Heat Sink With Fan45 A x 3 = 135 Amp
(45 A / phase across 3 phases)
| Heat Sink / Mounting | Rated Load Current @ 40 °C |
|---|---|
| B-72 | 60 Amp |
| B-96 | 80 Amp |
| A-190 Heat Sink without Fan | 40 A x 3 = 120 Amp |
| A-190 Heat Sink With Fan | 45 A x 3 = 135 Amp |
Same series












