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Cleanroom Doors, Windows and Interlock Systems
Cleanroom Door Interlock Controller
A central low-voltage controller for cleanroom airlocks, coordinating door-position inputs, electric locks, request devices, status indicators, alarms and emergency release functions.
- Configurable Door Logic
- Labeled Lock and Sensor I/O
- Alarm and Emergency Inputs
- Access-Control Integration
Product Introduction
The cleanroom door interlock controller is the logic hub behind a personnel or material airlock. It reads each door-position contact, determines whether another opening request is permitted and controls the corresponding electromagnetic lock or electric strike. A serviceable enclosure contains the power supply, protected output circuits, labeled terminals and programmable logic. Interface contacts can exchange status or release commands with access control, fire alarm and building-management systems without placing exposed electronics in the cleanroom doorway.
Key Features
Protected lock outputs support common fail-safe or fail-secure electric-lock arrangements.
Adjustable door-open and air-purge delays accommodate different airlock operating sequences.
Dry-contact interfaces allow coordinated signals with access control, fire alarm and BMS equipment.
Customer Product Concerns
A controller must make door state visible, release locks safely and avoid ambiguous field wiring while remaining flexible enough for different airlock sequences.
A controller releases a second door because it cannot confirm that the first door is fully closed.Independent door-position inputs are evaluated before every release output is enabled.
Unlabeled field terminals make service faults difficult to isolate.Grouped and clearly identified inputs, lock outputs and auxiliary contacts simplify tracing and replacement.
A rigid sequence cannot accommodate purge time or emergency egress requirements.Configurable timers and dedicated emergency/fire inputs separate normal operating logic from safety release behavior.
Typical Applications
Personnel airlocksMaterial airlocksCleanroom gowning suitesLaboratory containment entrances
Technical Parameters
Typical controller enclosure and low-voltage interface ranges are listed below.
| Core Material | Industrial control PCB, protected relay outputs and regulated low-voltage power supply in a service enclosure |
|---|---|
| Panel Thickness | 80–130 mm enclosure depth |
| Effective Width | 200–300 mm enclosure width |
| Maximum Length | 350 mm enclosure height |
| Steel Facing Thickness | 1.0–1.5 mm powder-coated steel enclosure; polycarbonate enclosure optional |
| Core Density | Approximately 1800–1920 kg/m³ for the glass-reinforced PCB laminate |
| Thermal Conductivity | Approximately 0.4–0.7 W/(m·K) for the PCB laminate used inside the controller |
| Surface Finish | Powder-coated steel or smooth sealed polycarbonate enclosure with labeled internal terminals |
| Joint Type | DIN-rail and PCB terminal connections for door contacts, locks, request buttons and auxiliary dry contacts |
| Customization | Available based on the intended application and operating environment |
Available Options
12 or 24 VDC lock circuitsFail-safe or fail-secure logicDoor-open alarm and purge timerFire alarm, BMS and access-control interfaces
Planning a Cleanroom Door Interlock Controller specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
