Electric strike BIRA MINI 12V with memory and brake AC/DC

The Electric strike BIRA MINI 12V with memory and brake is made for pedestrian gates and the entrance doors of apartment buildings, and connects to any building intercom. The entrance is released by the intercom signal, with no key.

MINI series strikes are narrow and have a small, symmetrical housing, which makes them ideal for aluminium profiles and narrow frames. The housing is zinc-plated (silver zinc), not stainless steel, and the latch is zinc-aluminium alloy (ZnAl) with a galvanic coating. The manufacturer's dimensions are 16.2 × 67 × 28 mm (width × height × depth), and the latch depth can be adjusted by up to 3 mm.

This model has two functions that make daily use easier: an internal memory, which keeps the entrance unlocked after a short signal until it is closed again, and a brake, which keeps it permanently unlocked when the small lever is moved. The basic behaviour is fail-secure (NC), so the entrance stays locked when there is no power.

It is built into the frame of DIN left and DIN right doors. The strike plate is not included and is bought separately, while the screws for fixing the strike to the plate are supplied. The manufacturer gives no separate cut-out size: the cut-out in the frame has to take the symmetrical 67 × 16.2 × 28 mm housing, and the gap between door and frame at the latch should be 3–5 mm. It is connected with two wires to the output of the intercom or controller (AC/DC, polarity does not matter), and it should be installed by a qualified electrician.

Product description

• Type: MINI series electric strike for installation in the door frame
• Manufacturer: BIRA
• Material: zinc-plated housing (silver zinc), latch of zinc-aluminium alloy (ZnAl) with a galvanic coating
• Design: memory and brake
• Strike plate: not included (bought separately)

Technical specifications

• Operation: fail-secure (NC – normally closed, released when energised)
• Internal memory: after the release signal the entrance stays unlocked until it is closed again
• Brake: moving the small lever keeps the entrance permanently unlocked
• Voltage: 10 – 14 V AC/DC
• Resistance: 17,6 Ω
• Current draw: 480 mA (AC), 680 mA (DC)
• Mechanical strength: break-in resistance 3000 N (300 kg)
• Durability: tested over 200,000 opening cycles
• Latch adjustable up to 3 mm
• Shape: radial – the latch stays within the outline when opening
• Size: 16.2 × 67 × 28 mm
• Doors: DIN left and DIN right
• Frame cut-out: to suit the 67 × 16.2 × 28 mm housing (no separate size given by the manufacturer)
• Gap between door and frame at the latch: 3–5 mm
• Wiring: two wires to the intercom or controller output, AC/DC, polarity does not matter
• Cable cross-section: 0.5 mm² up to 30 m, 1.0 mm² for 30–100 m
• Installation: by a qualified electrician, following the manufacturer's instructions

Application and use

• Entrance doors of apartment buildings
• Pedestrian gates and railings
• Aluminium profiles and narrow frames
• Offices and business premises with a controlled entrance
• Connection to an intercom or an access control system

Package contents

• 1 electric strike BIRA MINI
• Screws for fixing to the strike plate

Notes

• The strike plate is not included: we recommend the flat universal plate 250 × 25 × 3 mm (product code 29831) or the angled plate 250 × 25 mm (code 14254 left / 29824 right)
• The drawing in the description rounds the width to 16.5 mm; the manufacturer's figure is 16.2 mm

Dimensions (in mm):

A 16.2 · B 67 · C 28

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