Check the listing for details. NEW TELEMECANIQUE XMJ-A300 PRESSURE SWITCH. Condition: New. Listed at 97.99 USD. The Telemecanique XMJ-A300 Pressure Switch is a reliable and durable electrical component designed to regulate pressure in a system. With a focus on quality and performance, this switch is ideal for industrial applications where precise control over pressure levels is crucial. The Telemecanique brand is known for its expertise in electrical equipment and supplies, making this pressure switch a dependable choice for various business and industrial settings.