BOSCH F220-B6C Base, 4-wire, Form A & C Relays, 12/24V
Four-wire base with a normally-open (NO) alarm loop relay and a set of auxiliary contacts (Form C). The base works with the F220 smoke detectors and heat detectors.
Features
- Use for four-wire (12 VDC or 24 VDC system) applications
- Has normally-open (NO) alarm loop relay and a set of auxiliary contacts (Form C)
- Easy installation
- Interchangeable detector heads
- UL listed when used with a detector from the F220 family
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