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Access Control ASSA ABLOY

ASSA ABLOY Trimec Z4 600lbs Electromagnetic Lock – LT770300-012

SKU: LT770300-012 LEM230MR

The ASSA ABLOY Trimec Z4 LT770300-012 is a monitored electromagnetic lock designed to provide reliable, secure door locking for commercial access control applications. With a high holding force, fail-safe operation and dual monitoring capability, it is suitable for a range of aluminium, steel and timber door installations.

The integrated Armature Position Status (APS) monitoring confirms that the electromagnet is powered and bonded to the armature plate, while Door Position Status (DPS) monitoring uses an integrated reed switch to monitor the door's position independently.

Featuring selectable 12V DC or 24V DC operation, self-aligning armature plate design and instantaneous release technology, the Z4 is suitable for both new installations and retrofit projects.

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DPS APS
600 LBS
250-280Kg Holding Force
12/24V Power

ASSA ABLOY Trimec Z4 single-leaf electromagnetic lock with up to 280kg holding force, dual APS and DPS monitoring, and selectable 12V DC or 24V DC operation. Ideal for commercial doors and access control systems.

  • High Holding Force – Manufacturer-rated holding force of 250–280kg.
  • APS Monitoring – Monitors magnetic bond and armature position.
  • DPS Monitoring – Integrated reed switch monitors door position.
  • Fail-Safe Operation – Unlocks when electrical power is removed.
  • Dual Voltage – Selectable 12V DC or 24V DC operation.
  • Self-Aligning Armature Plate – Pivoting design accommodates minor door movement or drop.
  • Instantaneous Release – Smart electronics help eliminate residual magnetism.
  • Quiet Operation – Designed for silent locking without humming or buzzing.
  • Flexible Installation – Suitable for compatible aluminium, steel and timber door constructions.
  • Commercial Access Control – Ideal for controlled-entry doors and security installations.

ASSA ABLOY LT770300-012 LEM230MR Trimec Z4 600lbs Electromagnetic Lock

SpecificationDetails
ModelZ4
Part NumberLT770300-012
Product TypeElectromagnetic Lock
Door ConfigurationSingle leaf
Holding Force250–280kg (manufacturer rating)
MonitoringAPS + DPS
APS TechnologyHall-effect / bond sensing
DPS TechnologyReed switch
Operating Voltage12V DC / 24V DC ±10%
Current Consumption450mA at 12V DC; 225mA at 24V DC
Dimensions (L × H × D)238 × 48 × 27mm
Operating Temperature-10°C to +55°C
Operating Humidity0–95%
Locking ModeFail-safe
ApplicationsAccess control and commercial doors
  • EM Lock
  • Armature plate
  • Lock mount plate
  • Screws

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