KC2 Series Conventional Smoke & Heat Detectors
Reliable, Low-Profile Detection You Can Trust
The KC2 Series Conventional Smoke, Heat, and Combination Detectors deliver dependable fire detection performance with enhanced resistance to nuisance alarms. Designed for compatibility with AEGIS™-PHX, AEGIS™ 2.0, and AEGIS™-XLT control units, these detectors bring advanced sensing technology to a compact, ceiling-friendly form factor, ideal for commercial, industrial, and life-safety environments.
Certified to the latest UL 268 (7th Edition) and UL 521 standards, KC2 detectors meet today’s stringent requirements for sensitivity, stability, and false-alarm immunity, helping ensure fast, accurate response when it matters most.
Key Advantages
- Multi-criteria optical sensing
Differentiates real smoke from steam or dust to prevent nuisance alarms. - Flexible configuration
Available in Smoke, Heat, or Smoke-Heat Combination models for tailored protection. - Universal compatibility
Integrates with all current Kidde Fire Systems conventional control panels.
- Low-profile design
Blends discreetly into ceilings while maintaining easy visibility of status LEDs. - Self-diagnostics
Continuously monitors detector operation to ensure long-term reliability. - Quick installation
Snap-on base connection and accessible terminals simplify setup and servicing.
Applications:
The KC2 Series detectors are ideal for:
- Commercial kitchens, offices, and storage areas requiring photoelectric smoke detection
- Industrial and manufacturing environments with variable heat conditions
- Facilities needing dual-criteria (smoke + heat) detection for higher accuracy
- Retrofit projects replacing legacy 700-Series detectors
System Architecture
Product Models
| MODEL | TYPE | DETECTION METHOD | DESCRIPTION |
|---|---|---|---|
| KC2-OS-CD | Smoke | Photoelectric | Detects visible particles of combustion using advanced optical technology |
| KC2-H-CD | Heat | Rate-of-Rise + Fixed Temperature | Detects rapid temperature increase or exceeds 135 °F alarm point |
| KC2-OSH-CD | Combination | Photoelectric + Heat | Dual sensing technology for greater reliability across variable conditions |
Installation & Compatibility
KC2 detectors mount easily to KC2-SB / KC2-SB4 Standard Bases or KC2-RB / KC2-RB4 Relay Bases using standard North American or European electrical boxes.
Trim skirts and remote LED indicators are available for clean installations or hard-to-see locations.
They are fully compatible with Kidde Fire Systems control panels including AEGIS™, AEGIS 2.0, AEGIS-XLT, and legacy 700-Series models, per UL-listed compatibility tables.
Technical Specifications
| PARAMETER | SPECIFICATION |
|---|---|
| Operating Voltage | 6.5 – 33 V DC |
| Standby Current | 88 µA @ 18 V DC |
| Alarm Current | Up to 60 mA (max, limited by panel) |
| Sensitivity (Smoke) | 0.5 – 4.36 %/ft obscuration |
| Heat Detection | Rate-of-Rise 15 °F/min (8 °C/min), Fixed 135 °F (57 °C) |
| Operating Temperature | 0 – 93 % RH (non-condensing) |
| Humidity Range | Column 2 Value 7 |
| Dimensions (Detector + Base) | 4.4 in D × 2.625 in H (11.18 cm × 6.67 cm) |
| Approvals | FM Approved • cULus Listed • CSFM Listed |
Best Practices for Optimal Performance
- Maintain separation between detector wiring and high-voltage cabling to reduce EMI, ensuring consistent detection reliability, a design approach supported by Fenwal Controls’ own EMI mitigation research.
- Conduct regular functional testing using approved smoke test aerosols (e.g., SM200-12PKG)
- Replace detectors per NFPA 72 guidelines or manufacture’s recommended lifecycle.
Resources
Resource links coming soon!
Protect What Matters Most
Whether you’re outfitting a single room or a full facility, KC2 Series Detectors combine advanced technology, flexible installation, and a legacy of Kidde reliability.
