Brand: Crydom / Sensata.
Model: A53TP50D (53TP series three‑phase SSR, panel mount).
Condition: New, never used, from old stock. Unit is unused and clean; original cardboard box shows heavy storage wear, discoloration and writing but still protects the relay.
Function: 3‑phase solid state relay, 3 Form A (3PST-NO) thyristor/SCR output.
Load voltage: 48–530 V AC, 47–63 Hz.
Load current: Up to 50 A per phase with proper heat sinking.
Control/input voltage: 90–280 V AC, zero‑crossing turn‑on.
Input current: Approx. 2.2–10 mA over rated control range.
Transient overvoltage: up to about 1200 V peak (internal overvoltage protection).
Operating temperature: approximately −40 °C to +80 °C (with suitable heatsink).
IP rating: IP00 open-frame, panel-mount “hockey puck” module with screw terminals (A1–C1 / A2–C2).
Agency approvals: CE, cURus and other safety approvals typical for the 53TP series (markings on relay body).
Three‑phase AC solid state relay for switching heaters, motors, and other industrial loads where fast, silent and maintenance‑free switching is desired.
Zero‑cross switching reduces electrical noise and inrush stress on loads, improving reliability in automation systems.
Direct‑bond copper substrate and robust screw terminals provide low thermal resistance and secure wiring for demanding environments.
Ideal for OEMs, repair shops, and maintenance engineers needing a drop‑in replacement for existing Crydom A53TP50D or compatible 3‑phase SSRs.
