Dorma RTS84 Transom Closer – EN 4, 3° Offset
The Dorma RTS84 Transom Closer is a concealed transom-mounted door closer designed for shopfronts and commercial applications where floor-mounted hardware is not suitable. With a fixed EN 4 closing force and a 3° offset spindle, the RTS84 provides controlled closing for single action doors with optional hold open functionality depending on variant.
Key Features
- Concealed transom-mounted door closer.
- Fixed EN 4 closing force.
- 3° offset spindle for standard shopfront configurations.
- Available in left and right handed variants.
- Optional 90° hold open depending on selected model.
- Suitable for single action commercial doors.
Fire Rated?
- Fire door suitability depends on the selected variant and doorset configuration.
- Hold open variants must not be used on fire doors.
Specifications
- Product Type: Transom-mounted door closer
- Series: Dorma RTS84
- Closing Force: EN 4 (fixed)
- Spindle Offset: 3°
- Door Type: Single action
Available Variants
Download PDF Resources
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Dorma RTS84 Transom Closer – Product Brochure |
Frequently Asked Questions
What is the difference between hold open and non hold open variants?
Hold open models keep the door open at 90°, while non hold open models allow the door to close automatically.
Can the hold open version be used on fire doors?
No. Hold open transom closers must not be used on fire-rated doors.
How do I choose ISO 5 vs ISO 6?
ISO designation relates to spindle orientation and must match the door handing.
Additional Information
- Transom closers are commonly specified where floor springs are not suitable.
- Correct handing and spindle selection is critical before ordering.
- Professional installation is recommended for transom-mounted systems.
