

Model 803 Slim · Zero-cross Slim DC to AC Solid State Relay
UNI 803 ZDA 58 50 01 - 4 NOS. SSR + B-96 HEAT SINK + DIN RAIL
50 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), 50 Amp
- PIV
- 1400, I²T : 3000A²S 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 15 A SC protect by 16 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.
V-8722 Amp
B-2430 Amp
B-4816 A x 2 = 32 Amp
(16 A / phase across 2 phases)
B-7216 A x 3 = 48 Amp
(16 A / phase across 3 phases)
B-9616 A x 4 = 64 Amp
(16 A / phase across 4 phases)
| Heat Sink / Mounting | Rated Load Current @ 40 °C |
|---|---|
| V-87 | 22 Amp |
| B-24 | 30 Amp |
| B-48 | 16 A x 2 = 32 Amp |
| B-72 | 16 A x 3 = 48 Amp |
| B-96 | 16 A x 4 = 64 Amp |
Same series












