Banner Engineering SI-QM100AMG Safety Interlock Switch

The Banner SI-QM100AMG is a locking-style safety interlock switch in Banner’s SI-QM100 series, designed to secure guarded access on industrial equipment. It provides four contacts: two safety contacts that must be wired in series to a 2-channel safety module or safety interface, and two monitoring contacts for fault detection. This arrangement supports safe machine stop and prevents an unauthorized restart if a fault is detected, aligning with common guarding practices that use two interlock switches per gate. The SI-QM100 family is built for guard-door applications and shares a common interlock body and wiring enclosure design that accommodates standard installation methods for locking-style switches. Typical applications include guarding doors on presses, conveyors, and automated cells where reliable interlock operation and monitored safety are required. The four-contact configuration enables essential safety signaling and built‑in diagnostics without compromising guard integrity.