The fail-safe solenoid bolt lock is the standard locking unit for HT Group's gas-tight swing doors. When locked, the locking bolt blocks the lever handle of the door leaf, thereby preventing the door from being opened unintentionally.

In the fail-safe (power-to-lock) version, the bolt is energized to lock. If the power supply fails, the bolt retracts and the door can be opened. This allows people to exit the area even during a power outage.

Since the bolt is permanently energized during normal operation, the assembly is equipped with a holding current reduction feature. This reduces the current to approximately 500 mA after locking, thus preventing the lock from overheating.

One lock is required per door. For material pass-throughs without pedestrian traffic, the fail-secure version ELE02814 is available. Operating and display elements as well as the control system are not included with the lock.

Intended use

Electric lock for gas-tight swing doors (GDDT) with pedestrian traffic.

Typical areas of application include:

• gas-tight swing doors in laboratories and cleanrooms
• personnel airlocks and changing areas
• cleanrooms of classes ISO / GMP D to A
• biosafety laboratories of levels S3 to S4
  
  

Features

• fail-safe (power-to-lock); in the event of a power failure, the bolt retracts and the door can be opened
• standard design for personnel doors
• integrated holding current reduction lowers the holding current to approx. 500 mA and prevents excessive heating
• locking bolt blocks the lever handle of the door leaf
• locking bolt made of stainless steel, bolt area sealed to IP65
• integrated position monitoring of the locking bolt and door position monitoring
• potential-free relay contact
• 24 V DC, 100% duty cycle
• locking unit mounted flush and gas-tight with PTFE seal in the door frame
• control system and operating panel not included in the scope of delivery
   

Technical data

• Operating mode: fail-safe (power-to-lock) – bolt retracted when de-energized
• Supply voltage: 24 V DC, ± 10% according to DIN IEC 60038
• Duty cycle: 100% ED, operating mode S1
• Nominal power at 20 °C: 26.1 W
• Rated current at 20 °C: 1.088 A
• Holding current after reduction: approx. 500 mA
• Coil resistance at 20 °C: 22.1 Ω
• max. ambient temperature: 35 °C
• Locking bolt: stainless steel 1.4404 (ASTM A316L), Ø 15 mm
• Bolt stroke: approx. 16 mm (extended approx. 18 mm, retracted approx. 2 mm)
• Protection rating: IP65 in the bolt area
• Mounting plate: stainless steel 1.4404, 280 × 80 mm, polished
• Main body: aluminum EN AW-6082 T6
• Signals: locking bolt position, door position, potential-free relay contact
• Electrical connection: terminal block, customer-provided connection cable 8 × 0.75 mm²
• Holding current reduction: integrated
• Part number: ELE03283