Cleanroom Doors, Windows and Interlock Systems

Resettable Emergency Door Release Button

A protected green manual release unit that interrupts or signals the access-control circuit when emergency door unlocking is required.

Resettable Operation
Protective Clear Cover
Dual Status Indicators
Emergency Release Contacts

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Product Introduction

The resettable emergency door release button provides a deliberate manual action independent of normal credential control. Lifting the clear protective cover and pressing the center panel changes the internal contact state so the access system can release its fail-safe lock or register an emergency command. A reset key returns the mechanism after the event, eliminating the glass fragments and consumable insert associated with traditional break-glass units.

Key Features

The bright green housing identifies a door-release function beside controlled entrances.

A clear hinged cover helps prevent accidental activation during routine corridor activity.

The resettable mechanism can be restored with a service key after inspection.

Separate contact sets and red/green indicators support local and controller status feedback.

Customer Product Concerns

Emergency release must remain obvious and immediately available without being triggered casually during normal operation.

An unprotected push button is activated by trolleys or routine cleaning.A transparent hinged cover shields the deliberate central press area.

Break-glass units require replacement parts after every operation.The spring-latched center panel is restored using a reusable reset key.

Staff cannot confirm whether the emergency circuit has returned to normal.Red and green indicators provide distinct activated and standby feedback.

Typical Applications

Cleanroom emergency exitsPersonnel airlock release pointsLaboratory access doorsHospital controlled corridors

Technical Parameters

Typical construction data for a surface-mounted resettable emergency release unit are listed below.

Core Material	Resettable microswitch mechanism and FR-4 indicator board in a PC/ABS housing
Panel Thickness	Approximately 50–60 mm installed housing depth
Effective Width	Approximately 85–95 mm housing width
Maximum Length	Approximately 95–110 mm overall housing length
Steel Facing Thickness	1.0–1.2 mm optional stainless-steel mounting backplate
Core Density	Approximately 1040–1200 kg/m³ for the PC/ABS enclosure material
Thermal Conductivity	Approximately 0.17–0.23 W/(m·K) for the PC/ABS housing
Surface Finish	Moulded emergency-green PC/ABS with clear polycarbonate protective cover
Joint Type	Surface wall-box mounting with hinged cover, gasket and screw-terminal contacts
Customization	Available based on the intended application and operating environment.

Available Options

Single- or double-pole contacts12 or 24 VDC indicatorsSurface or flush back boxAudible local alarm contact

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