Pressure switch RT30AB 017-518866

High‑limit pressure switch with manual reset.

For pressure switch RT30AB this device is designed as a safety pressure limiter for boiler and steam systems as well as hot‑water installations, including marine approvals for shipbuilding applications. It provides mechanical overpressure shutdown so that your control system responds clearly when the set limit is exceeded, with the bellows measuring system sensing the applied pressure and operating a changeover contact to deliver unambiguous signals in the control panel. After tripping, the safety pressure switch remains locked until you intentionally reset it, preventing the system from restarting unintentionally and supporting controlled operation in pressure‑critical applications.

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