Bosch - PM1-LISD, Loudspeaker DC Blocking Board for 70/100 V Systems

Features

- Professional loudspeaker DC blocking board

- Designed for loudspeaker line isolation systems

- Provides DC-free loudspeaker tap-off

- Compatible with 70 V loudspeakers

- Compatible with 100 V loudspeakers

- Suitable for loudspeakers without internal DC blocking capacitor

- Integrated coupling capacitor

- Effectively blocks DC current

- Overload protection through current limiting

- Maximum 20 W tap-off loudspeaker load

- Maximum 500 W loop-through loudspeaker load

- Loudspeaker loop connection up to 120 VAC audio

- Maximum loop current of 5 A

- Separate loop input and output connectors

- Dedicated loudspeaker tap-off connection

- Detachable screw connectors

- Quick and convenient wiring

- Compatible with different line isolation systems

- Compatible with Bosch PRA-LIM

- Compatible with Bosch PRA-LID

- Supports redundant loudspeaker loop configurations

- Reduces voice alarm installation complexity

- Can reduce expensive E30 cabling requirements

- Compact standard-size circuit board

- Fits multiple Bosch voice alarm loudspeakers

- Can be mounted inside selected loudspeakers

- Can be installed in dedicated IP30 housing

- Designed for professional public address systems

- Suitable for voice alarm applications

- EN 54-16 compliant

- ISO 7240-16 compliant

- EN 50849 compliant

- VDE 0833-4 compliant

- NEN 2575 compliant

- Compact lightweight construction

Specifications

- Brand: Bosch

- Model: PM1-LISD

- Order number: F.01U.288.246

- Type: Loudspeaker DC blocking board

- Application: Loudspeaker line isolation

- Compatible systems: Public address and voice alarm

- Compatible loudspeaker lines: 70 V / 100 V

- Loudspeaker loop connection: 120 VAC audio

- Maximum loop current: 5 A

- Maximum loop-through loudspeaker load: 500 W

- Maximum tap-off load: 20 W

- High-pass filter at 100 V / 20 W load: 67 Hz

- High-pass filter at 100 V / 10 W load: 34 Hz

- Connection type: Detachable screw connectors

- Connections: Loop input / loop output / tap-off

- Mounting type: Internally mounted in loudspeaker

- Alternative mounting: Compatible IP30 housing

- Dimensions (H × W × D): 60 × 45 × 30 mm

- Weight: 16 g

- Operating temperature: -5 °C to +55 °C

- Storage temperature: -20 °C to +70 °C

- Transportation temperature: -20 °C to +70 °C

- Operating relative humidity: 15% to 90%, non-condensing

- Air pressure: 600 to 1100 hPa

- Emergency standard certification: EN 54-16

- International certification: ISO 7240-16

- Voice alarm compliance: EN 50849

- Germany compliance: VDE 0833-4

- Netherlands compliance: NEN 2575

- Safety standard: EN 62368-1

- Immunity: EN 55035 / EN 50130-4

- Emissions: EN 55032 / EN 61000-6-3

- Environmental compliance: EN/IEC 63000

- Included components: DC blocking board and connector set