ABB OETL XS3B0501A1 Explosion-Proof Limit Switch 5A

ABB OETL XS3B Explosion-Proof Limit Switch — ATEX Zone 1 for Saudi Oil and Gas Valve Position Monitoring

The ABB OETL XS3B0501A1 explosion-proof limit switch monitors valve stem travel and actuator position in Saudi oil and gas facilities — ATEX Zone 1 certified for hazardous area use where flammable gases and vapors are present during normal operations. OETL XS3 series is the standard limit switch for quarter-turn valve actuators in Saudi Aramco and SABIC plants.

Saudi Aramco instrumentation standards require explosion-proof limit switches on all actuated valves in Class I Division 1 (Zone 1 equivalent) areas — OETL XS3B provides reliable position feedback to plant control systems via dual limit contacts without introducing ignition sources in hazardous atmospheres.

Key Features

ATEX Zone 1 / IECEx Zone 1: Certified for use in Zone 1 hazardous areas with explosive gas atmospheres.

Quarter-Turn Operation: Spring-return operator for 90 degree travel — standard for ball valves, butterfly valves, and plug valves found throughout Saudi process plants.

Dual Limit Contacts: SPDT contacts for open and closed position signaling — direct PLC/DCS integration without additional relay modules.

316 Stainless Steel Shaft: Corrosion-resistant operator shaft for coastal Saudi offshore and marine applications.

Applications in Saudi Arabia

Saudi Aramco Tank Farm Valves: OETL XS3B monitors position of tank isolation valves in Jubail crude oil storage tank farms.

Yanbu Refinery Block Valves: OETL XS3B provides position feedback for actuated block valves in Yanbu refinery process units.

SABIC PP Plant Process Valves: OETL XS3B monitors quarter-turn valve positions in Jubail polypropylene plant.

Technical Specifications