
STEP Exit Emergency exit device ST17921
Evacuation through the single grip opening via the evacuation handle on the cylinder position on the interior. The lower handle only affects the latch bolt. The motor lock can be set for re-locking or re-entry. The interior side is equipped with both a lever handle and an evacuation handle.Fire approved together with STEP 550 motor lock. Meets the requirements for locking class 2B according to SSF 3522.
STEP Exit ST17921 is certified with the STEP Motor locks STEP 550 and STEP 552.
STEP Exit ST17921 is delivered in pairs.
Function on the interior side: Evacuation through the single grip opening via the evacuation handle on the cylinder position on the interior. The lower handle only affect the latch bolt.
Function on the exterior side: The exterior handle is used to open the door after the hook bolt been retracted via the card reader.
Included in the package:
- 1pc interior
- 1pc exterior
- 1pc cylinder square spindle 70 mm, ST17999-70
- 1pc lever square spindle 70 mm, ST17989-70
- 1pc Exit label with a luminous effect
- 4pcs socket nuts
- 4pcs screws
- 1pc drill template
- 1pc cylinder driver
- 4pcs cylinder screws
- 1pc exit seal
- 1pc sealing bracket
The article numbers are structured according to the following pattern:
ST17921 = Type of escape accessories/function-R = For right-handed doors
-V = For left-handed doors
-1 = Brushed stainless steel
-2 = Polished stainless steel
Emergency device STEP Exit ST17921
Name: STEP Exit Emergency exit device ST17921
Article number: ST17921
Certified: CE-marked according to SS-EN 179:2008
Evacuation handle position: Cylinder position
Room for cylinder: No
Fits
ID STEP 17921
STEP Exit with emergency exit with the use of the interior evacuation handle on the cylinder position. Lever handle on the exterior side.

ST17921-L-2 STEP Exit in polished stainless steel, for lefthanded doors. Emergency exit with the use of the interior evacuation handle on the cylinder position. Lever handle on the exterior side.
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ST17921-L-1 STEP Exit in brushed stainless steel, for lefthanded doors. Emergency exit with the use of the interior evacuation handle on the cylinder position. Lever handle on the exterior side.
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ST17921-R-1 STEP Exit in brushed stainless steel, for righthanded doors. Emergency exit with the use of the interior evacuation handle on the cylinder position. Lever handle on the exterior side.
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ST17921-R-2 STEP Exit in polished stainless steel, for righthanded doors. Emergency exit with the use of the interior evacuation handle on the cylinder position. Lever handle on the exterior side.
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Technical information:
- Category of use: Grade 3.
- Durability: Grade 7.
- Door mass: Grade 7.
- Safety: Grade 1.
- Corrosion resistance: Grade 4.
- Security: Grade 5 (5 000 N).
- Projection of operating element: Grade 2 (projection up to 100 mm).
- Type of operation: Type A (lever handle).
- Field of door application: Category A/D.



