• A side view of a Automatic swing door operator with fail-safe opening function, featuring an electro-mechanical drive system, integrated spring-loaded mechanism, and electrical components. On a white background.
  • Metallic cover of a DFA127 operator with electrical components on a white background
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DFA 127 Inverse Operator - Opens without Power

DFA 127 Inverse Operator - Opens without Power

Net: £1,974.48
Incl. VAT: £2,369.38
Taxes included.
Delivery info
  • In-stock items: same-day dispatch when ordered before 1 pm, Monday–Friday, excluding bank holidays.
  • Other standard items: next working day dispatch.
  • Customised and bespoke items: individual lead times apply. Confirmation will be sent after ordering.
  • Free delivery on eligible orders over £300. Exclusions apply.
  • View delivery and collection details

Record DFA 127 INVERSE – Automatic Swing Door Operator with Fail-Safe Opening Function

The Record DFA 127 INVERSE is a specially engineered swing door operator designed to open doors automatically in the event of a power failure, making it ideal for emergency and safety-critical applications. Unlike standard swing door drives, the INVERSE stores the energy required for opening during its motor-driven closing cycle via an integrated spring mechanism. This enables reliable, mains-free opening when triggered by events such as smoke, fire, or loss of power.

Key Features & Benefits:

  • Opens Without Power:
    Mechanically stored energy allows the door to open automatically during a power outage—no emergency backup supply required.

  • Smoke & Heat Venting:
    Integrates with smoke and heat extraction systems, enabling automatic door opening for ventilation and smoke evacuation.

  • Safe for Escape Routes:
    Perfect for emergency exits and evacuation routes, ensuring doors open automatically for safe and efficient egress.

  • Electromagnetic Parking Brake:
    Maintains the door in a closed or parked position without the need for extra electrical locking mechanisms, streamlining installation on interior doors.

  • Integrated Opening Stop:
    Built into the operator to eliminate trip hazards, improving pedestrian safety in high-traffic areas.

  • Universally Applicable:
    Compatible with a wide range of door configurations and sizes, the DFA 127 INVERSE is suitable for public buildings, hospitals, transportation hubs, and more.

Technical Overview:

Feature Details
Drive Type Electro-mechanical with spring-loaded opening
Failsafe Opening Yes – opens without mains power
Integrated Smoke/Heat Venting Compatible with external smoke & heat systems
Electromagnetic Brake Included (no additional opener required)
Opening Stop Integrated into drive system
Compatibility Suitable for escape routes, interior/exterior use
Design Compact, quiet, and unobtrusive
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FAQ's

What is different about the DFA 127 INVERSE operator?

It is designed to open the door mechanically if mains power is lost, using spring energy stored during the motor-driven closing cycle.

Does the INVERSE require a battery backup to open during power failure?

The listing states that no emergency backup supply is required for its fail-safe mechanical opening function.

Can the DFA 127 INVERSE be used with smoke and heat ventilation systems?

Yes. The product information states compatibility with external smoke and heat extraction or ventilation systems.

Does the operator include an electromagnetic parking brake?

Yes. An electromagnetic parking brake is listed as integrated into the operator.

Is an opening stop built into the operator?

Yes. The listing states that the opening stop is integrated into the drive system.