USD 127.83
IP67 aluminum guard lock safety switch with 24 VDC solenoid. Features 1NC/1NO + 1NC contacts and status LEDs for secure industrial door access control.
The Omron D4BL-1CRA-A is a heavy-duty, industrial-grade guard lock safety-door switch engineered to enforce secure access control for hazardous machinery. Encased in a rugged aluminum die-cast housing with an IP67 rating, this switch withstands harsh environments while employing a power-to-unlock mechanism driven by a 24 VDC solenoid. It features a 1NC/1NO + 1NC slow-action contact configuration equipped with a certified direct opening mechanism on the NC contacts for fail-safe operation. The D4BL-1CRA-A includes a built-in LED indicator for clear status visibility, an auxiliary release key for emergency access during power failures, and a PG13.5 conduit opening. Its adjustable head allows operation key insertion from four different directions, providing high installation versatility for automated manufacturing and robotic cells.
| Parameter | Value |
|---|---|
| Locking Mechanism | Mechanical Lock / 24 VDC Solenoid Release (Power-to-Unlock) |
| Contact Configuration | 1NC/1NO + 1NC (Slow-action) |
| Conduit Opening | PG13.5 |
| Rated Current | 10 A (Thermal), 6 A / 115 VAC (Indicator Model) |
| Direct Opening Force | 19.61 N min. |
| Operating Speed | 0.05 to 0.5 m/s |
| Ingress Protection | IP67 |
| Housing Material | Aluminum Die-cast |
| Mechanical Durability | 1,000,000 operations min. |
| Electrical Durability | 500,000 operations min. |
Secures access doors to robotic welding or assembly cells. The power-to-unlock mechanism ensures the door remains mechanically locked until the robotic arm comes to a complete halt and the PLC sends a 24 VDC signal to the solenoid.
Prevents operators from opening safety doors while robotic equipment is still moving, avoiding catastrophic injury and ensuring safety compliance.
Installed on CNC milling machines or lathes where flying debris, oil, and coolant are persistently present. The robust aluminum die-cast body and IP67 rating completely protect the internal switch components from cutting fluids.
Guards against unauthorized access to rotating spindles while ensuring long-term switch reliability and preventing fluid ingress in harsh machining environments.
Deployed on the perimeter guarding of mechanical stamping presses. The switch utilizes the direct opening mechanism (NC contacts) to safely interrupt the press control circuit, maintaining a locked barrier until the high-inertia ram safely runs down to zero speed.
Eliminates the risk of operator entry during the hazardous run-down time of high-inertia machinery, physically preventing the door from opening without authorized PLC release.
