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The POTTER ELECTRIC SIGNAL CO. US 2020355 is a high security contact device designed for specialized alarm and detection applications. This unit functions as a door or access-point contact that signals an open or tampered state to a connected control panel. It is intended for installations where standard contacts are insufficient and a higher level of tamper resistance or detection sensitivity is required. Licensed alarm technicians and low-voltage security contractors are the primary installers of this device.
This high security contact is suited for commercial and institutional environments where access control integrity is critical. Typical applications include secured doors, server rooms, vaults, and other controlled-entry points requiring reliable positional detection. It is sold as a single unit and is classified under special application contacts, indicating it is intended for non-standard or high-integrity security installations rather than general-purpose residential alarm work.
Designed as an OEM-style replacement or new-installation component for special application contact positions in commercial security and alarm systems. No specific compatible model numbers were provided in the available product data.
Installation should be performed by a licensed low-voltage or alarm systems contractor in accordance with applicable local codes and NFPA 731 guidelines. Disconnect or power down the alarm control panel before wiring this contact to avoid false alarms or panel faults. Verify proper gap alignment between the contact and magnet per the manufacturer data sheet before securing the device. Do not substitute standard residential contacts in applications where this high security part is specified.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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