In automated industrial environments where machinery operates at high speeds, the need for a reliable emergency stop system cannot be overstated. A properly designed E‑Stop device must not only halt operations instantly but also prevent unauthorized or accidental restarts. This is where our advanced safety components excel. We supply a complete lineup of intuitive control units including the Key-Release Emergency Stop Button for applications requiring a deliberate key-driven reset, and the Emergency Stop Button with Key that integrates access control directly into the actuator head. Both variants are built on the same fail‑safe principles and share a common design language, giving system integrators the flexibility to match the safety architecture of any panel or workstation. The housing materials are selected to perform under aggressive chemical washdowns, heavy vibration, and extreme temperature swings, while the internal double‑break contacts ensure an immediate galvanic isolation of the control circuit. Every unit conforms to the latest machine safety directives, offering peace of mind during third‑party audits and risk assessments.
The Key Lock Emergency Stop Button distills decades of safety engineering into a single robust form factor. Its defining characteristic is the removable key mechanism that physically locks the actuator in the depressed position after an emergency trigger. This prevents the machine from being restarted until a supervisor inserts the matching key and turns it clockwise to release the mushroom button. Installation is straightforward on standard 22.5 mm panel cutouts, with an optional 30.5 mm version available for legacy retrofit projects. The contact blocks snap onto the rear of the operator, allowing field replacement without disturbing wiring. Each Key Lock Emergency Stop Button arrives with a comprehensive technical dossier that covers wiring schematics, torque specifications for the mounting nut, and the recommended fuse rating for the control circuit. The large red mushroom head, manufactured from UV‑stabilized polycarbonate, maintains its vivid color even after prolonged exposure to sunlight or metalworking fluids. An integrated silicone boot can be fitted externally to further elevate the ingress protection to IP69K, making the assembly suitable for food processing lines demanding high‑pressure steam cleaning. Below you will find the essential performance data and build specifications that define this safety crucial device.
| Parameter | Specification |
|---|---|
| Panel Cutout Diameter | 22.5 mm (IEC 60947‑5‑1) |
| Contact Element Type | 1NC + 1NO, or 2NC positive opening (IEC 60947‑5‑1 Annex K) |
| Rated Insulation Voltage Ui | 690 V AC |
| Conventional Thermal Current Ith | 10 A |
| Utilization Category AC‑15 | 230 V / 3 A; 400 V / 1.5 A |
| Utilization Category DC‑13 | 24 V / 1.5 A; 110 V / 0.5 A |
| Short‑Circuit Protection | 10 A gG fuse per IEC 60269‑1 |
| Degree of Protection | IP67 (front); IP65 (terminals) / IP69K with optional boot |
| Ambient Temperature Range | −25 °C to +80 °C (operation); −40 °C to +85 °C (storage) |
| Mechanical Operating Cycles | ≥ 600 000 |
| Electrical Endurance (NC contact, AC‑15) | ≥ 150 000 cycles at rated current |
| Key Material / Durability | Nickel‑plated brass; 20 000 insertion cycles minimum |
| Terminal Type | Screw clamp (M3.5) with self‑lifting captive washer; torque 0.8–1.0 Nm |
| Certifications & Compliance | CE, UKCA, UL 508, CSA C22.2 No. 14, TÜV Rheinland, RoHS III, REACH |
