Product Overview
The R. STAHL 9276A is a loop-powered binary output device designed for intrinsically safe (Ex i) field circuits. This compact unit, measuring only 12.5 mm wide, is suitable for a wide range of applications, including the operation of Ex i solenoid valves, indicator lights, and horns. It requires no separate auxiliary power, drawing its energy directly from the control circuit. The device offers galvanic isolation between its intrinsically safe outputs and the inputs, enhancing safety and reliability.
Key Features and Certifications
- Compact Design: Space-saving 12.5 mm width.
- SIL 3 Capability: Certified according to IEC/EN 61508, indicating a high level of functional safety.
- Hazardous Area Certifications: Meets requirements for various hazardous zones (Zone 0, 1, 2, 20, 21, 22) with ATEX and IECEx certifications for gas and dust environments.
- Wide Operating Temperature Range: Operates reliably between -40 °C and +60 °C.
- Multiple Approvals: Includes cULus, ATEX, IECEx, and CCC certifications, ensuring broad applicability.
Technical Specifications
The R. STAHL 9276A provides specific technical data for its operation, including maximum voltage (25.1 V), maximum current (188 mA), and maximum power (1180 mW). It details the maximum permissible external capacitance and inductance for various gas and dust groups (IIC, IIB, IIA, IIIC) to ensure safe operation within intrinsically safe parameters. The device also features a fast response time (≤ 20 ms) for switching signals.
Applications
This device is ideal for applications in potentially explosive atmospheres where intrinsically safe signaling is required. Its robust design and comprehensive certifications make it suitable for use in industries such as oil and gas, chemical processing, and mining.
