R. Stahl – 9251/02‑20 – Relay Repeater Amplifier Module, 2‑Channel, 24 V

The R. Stahl 9251/02‑20 is a 2-channel relay repeater and amplifier module engineered for industrial control systems, particularly in hazardous locations. It receives intrinsically safe input signals (≤10.5 V, ≤32 mA) and switches two output relays rated at 2 A/250 VAC, facilitating reliable signal amplification and isolation for safe-area interfaces.

Key Features & Technical Specifications:

• Model: 9251/02‑20 (Relay Repeater Amplifier Module)  

• Input: ≤10.5 V, ≤32 mA (intrinsically safe)

• Output: 2 channels; relay contacts rated 2 A @ 250 VAC (also DC operation: e.g., 220 Vdc @ 0.1 A, 24 Vdc @ 2 A)  

• Power Supply: 24 V, 2.5 W; 48–62 Hz  

• Temperature Rating: Up to 60 °C ambient  

• Certification: Suitable for Ex‑ia environments (Class I Div. 2 A-D, Class II E-G, Class III)  

• Dimensions & Weight: Compact DIN-rail compatible; approx. 270 g