Loop Isolator Module LIM

585342

Approval: EN 54-17
Loop Isolator Module to install a short-circuit and open-circuit tolerant 100 V loudspeaker loop wiring system in VARIODYN ONE loop technology. The modules monitor the current on the loudspeaker loop and disconnect the defective part of the loop in case of over-current, e.g. at a short-circuit. Loop failures are displayed on VARODYN INC (Intelligent Network Controller) and PACT-software. Each module has a total of three two-pole terminals to connect the loop wiring system and the speakers. Wires with a cross-section of up to 2.5 mm² can be connected to the terminals. In addition, each LIM has 3 LEDs to display the operating status. The LIM is housed in a stable, compact IP 66 housing with sufficient wiring space and can be used in projects with difficult environmental conditions, e.g. in industrial applications.
  • Increased safety compared to spur cabling
  • Fully redundant 100 V loop wiring system technology
  • Extensive topologies are possible
  • Short-circuit and wire break tolerant
  • EN 54-17 certified
  • Large saving in wiring and installation

Additional Information:
Please consider that the amplifier 4XD125B (585030) and 4XD250B (585031) are not compatible with the loop technology!

Operating voltage 24 V DC
Current consumption
1 mA (fast charge current 10 mA max.)
Ambient temperature
-5 °C ... 55 °C
Storage temperature
-40 °C ... 70 °C
Air humidity
< 95 % (non-condensing)
Maximum line voltage
100 Vrms AC or 30 V DC
Maximum line voltage (without a short circuit or partial short circuit fault)
20 V DC
Maximum rated continuous current with the switch closed
6 A
Maximum rated switching current (under short circuit)
6 A
Maximum series impedance with the switch closed (ZC max.)
< 100 mΩ
Weight
approx. 130 g
Dimensions W: 114 mm H: 114 mm D: 57 mm
Threshold for LIM Enablement / Disablement
Line voltage difference <1V /Line voltage difference >1V and reset signal is received