Introducing the Bosch D290 Four Wire Detector Base, designed for use with 24 VDC photoelectric smoke detectors. This reliable base ensures efficient operation by utilizing a four-wire configuration, allowing for a streamlined installation process. Key features include compatibility with various power supplies and a low-profile design, making it an ideal choice for both new installations and retrofits.
Bosch D290 Detector Base Features
- Feature: 24 VDC, four-wire circuit compatibility – Ensures seamless integration with photoelectric smoke detectors, optimizing performance and reliability.
- Feature: Dual Form C relays – Provides flexible alarm signaling options, enhancing the overall safety and functionality of the fire detection system.
- Feature: Low profile construction – Reduces visual impact and allows for discreet installation in various environments.
- Feature: Easy to install and service – Simplifies maintenance and reduces installation time, making it user-friendly for technicians.
- Feature: Molded in UL Listed white ABS plastic – Ensures durability and compliance with safety standards, providing peace of mind for users.
Bosch D290 Detailed Specifications
| Power Supply Voltage | 24 VDC |
| Wiring Configuration | Four-wire |
| Relay Type | Dual Form C |
| Material | UL Listed white ABS plastic |
| Installation | Easy to install and service |
| Application | Photoelectric smoke detectors |



















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