The Notifier N100-ISO is a Fault Isolator Module for FireWarden series fire alarm control panels. Specifically, it protects an SLC loop against wire-to-wire short circuits. As a result, a localized short does not take down devices outside the affected segment.
The module sits between groups of addressable devices on the SLC. First, when a short occurs between two N100-ISO modules, both isolate that segment automatically. Then, devices outside the segment continue to communicate with the panel normally.
How the Notifier N100-ISO behaves
An integral LED blinks during normal operation and stays steady when a short is detected. Furthermore, the N100-ISO is required for true NFPA Style 7 operation on the FireWarden SLC. Also, the module clears and restores the loop automatically once the short is removed; no technician reset is required.
The N100-ISO is powered directly from the SLC loop — no external power is needed. In addition, it does not require an address. However, the N100-ISO supports a maximum of 25 addressable devices between isolators (with standard bases). The count adjusts when using relay bases.
Verified specifications
- Function: SLC fault isolator (wire-to-wire short protection)
- Compatible panels: FireWarden Series (e.g. NFW-50X, NFW-100X)
- Power: SLC loop-powered (no external supply required)
- Address: none required
- LED: blinks normal, steady on detected short
- Auto-restore on short removal
- Supports NFPA Style 7 operation
- Max 25 addressable devices between isolators (standard bases)
- Dimensions: 4.5″ × 4.5″ × 0.25″
- Weight: ~0.2 lb
- Mounts to: 4″ square × 2-1/8″ deep electrical box
Order the Notifier N100-ISO
Life Safety Consultants stocks the Notifier N100-ISO alongside compatible FireWarden series panels and accessories. To plan an SLC with proper fault isolation, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.4 lbs |
|---|---|
| Dimensions | 6.13 × 5.78 × 1.63 in |
| Condition | New |
| Manufacturers | Notifier |
| Part Type | Pull Station |







