A fire alarm pull station is a manual initiating device: an occupant pulls a handle, or breaks the glass and operates the lever, to send an alarm signal to the fire alarm control panel. Unlike smoke and heat detectors, it needs a person to act. After operation, most pull stations must be reset with a key or special tool before the panel can be reset. Kidde Commercial's K-270 Series is a conventional, non-coded, single-action break-glass station with a pull lever and a solid die-cast metal housing, designed for economical installation.
Building owners, facilities managers, and fire alarm contractors specify Kidde pull stations where a manual alarm point is required. The key choices are the type of system (conventional or addressable), the action (single or double), the contact configuration, and how the station connects to the circuit. The K-270 series is available with normally open, normally closed, or combined NO/NC contacts, and Kidde states its pull force is under 5 lb, which complies with ADA. Always confirm panel compatibility and code requirements with your fire alarm panel documentation and the authority having jurisdiction.
Common configuration for the K-270 series: a red die-cast metal station, about 4-1/2" H x 3-1/4" W x 2-1/2" D on the K-270A-DPO listing, for flush or surface mounting. The basic K-270 has screw terminals, while the K-270A versions have 6" (150 mm) wire leads. Flush mounting uses a 4" standard North American square box with a single-gang plaster cover. The K-270A-SPO is listed as single-pole with a 30 VAC / 60 VDC rating and a 3 A contact rating, while the K-270A-DPO is a double-pole (DPST-NO) station listed with 0.5 A at 250V AC/DC and 1.5 A at 125V AC/DC for 24V DC / 125V AC conventional systems. The K-270A-DPO listing also cites UL and CSFM standards, 95% RH humidity range, and 0.3 lb weight. Other Kidde families include the plastic K-277B, the GSA-M270/M278 Signature Series, and the FX-270/FX-278 intelligent addressable stations.
Quick-Reference Spec Glossary
- Operation
- Single-action, break-glass, pull-lever (K-270 series)
- Contact options
- NO, NC, or combined NO/NC; single-pole (SPO) or double-pole (DPO) variants
- Field connection
- Screw terminals (K-270) or 6" (150 mm) wire leads (K-270A)
- Mounting
- Flush (4" square box with single-gang plaster cover) or surface
- Dimensions (K-270A-DPO listing)
- 4-1/2" H x 3-1/4" W x 2-1/2" D
- Ratings
- K-270A-SPO: 30 VAC / 60 VDC, 3 A contacts; K-270A-DPO: 0.5 A @ 250V, 1.5 A @ 125V AC/DC
- Housing
- Solid die-cast metal (K-270 series); plastic on the K-277B
- Compliance
- UL and CSFM on the K-270A-DPO listing; pull force under 5 lb (ADA)