Description
The Notifier AMPS-24/E is an intelligent, addressable power supply and battery charger designed to operate with the NFS-3030 and NFS2-3030 Fire Alarm Control Panels (FACPs), as well as serving as a primary power source for the NCA-2 Network Control Annunciator. The “E” designation specifies the 220–240 V AC regional variant, delivering filtered and regulated 24 V DC auxiliary power channels while reporting systemic diagnostic data back to the host panel over the Signaling Line Circuit (SLC).
Commercial and Sourcing Status
- Condition: New Original (Factory Sealed)
- Warranty: 12-Month Comprehensive Warranty
- Availability: In Stock
- Lead Time: Ships within 1–2 business days from warehouse verification
- Pricing Note: Given variations in component supply and logistical channels, listed pricing remains indicative. Contact our procurement team directly for a formal, contract-specific quote.
Technical Specifications
| Parameter | Value / Specification |
| Manufacturer | Notifier by Honeywell |
| Model Number | AMPS-24/E |
| Primary Input Voltage | 220–240 V AC, 50/60 Hz, 2.5 A maximum |
| Main Output Power (Total) | 24 V DC at 4.5 A maximum (Filtered and regulated) |
| Main Output (Shared) | 24 V DC at up to 4.5 A for local panel power and notification circuits |
| Secondary Power Aux 1 | 24 V DC at 0.5 A maximum (Regulated, power-limited) |
| Secondary Power Aux 2 | 5 V DC at 0.15 A maximum (Power-limited) |
| Battery Charger Capacity | Charges 7 Ah to 200 Ah sealed lead-acid batteries |
| Battery Charger Current | Selectable at 1.0 A, 2.0 A, or 5.0 A |
| Communication Protocols | FlashScan and CLIP (Classic Loop Interface Protocol) |
| SLC Draw | 1.0 mA (Transceiver interface loading) |
| Programming Port | USB Type B (For firmware and configuration parameters) |
| Operating Temperature | 0 to +49 °C (32 to +120 °F) |
| Relative Humidity | 93 % \pm 2 % RH (Non-condensing) at 32 °C |
| Agency Approvals | UL (S635), ULC (CS118), FM Approved, CSFM, MEA |
Architecture and Protocol Integration
Addressable Configuration Modes
The AMPS-24/E operates natively as an SLC loop device. When bound to an NFS2-3030 control configuration, it communicates via FlashScan high-speed polling or legacy CLIP mode, occupying a standard module address on the loop. This data link allows the host FACP to continuously monitor distinct operational matrices, including real-time battery voltage, charging status, and local output load levels.
Charger Selection Matrix
The unit features an adaptive charger network that must be physically scaled based on the total Ampere-hour (Ah) configuration of the standby battery bank. The charge parameters are selected via onboard jumpers or the system software utility:
- 1.0 A Mode: For compact internal enclosures handling smaller capacities (7 Ah to 26 Ah).
- 2.0 A Mode: Optimized for mid-tier external cabinets housing up to 60 Ah setpoints.
- 5.0 A Mode: Required when driving large remote battery backboxes (up to 200 Ah) ensuring compliance with NFPA 72 recovery timelines.
Diagnostics and Supervision Controls
The hardware incorporates automated brownout detection that seamlessly swaps loads to standby batteries when AC mains collapse below predefined safe levels. It supervises line impedance, battery presence, charger health, and battery low-voltage conditions. An integrated open-collector/dry-contact trouble bus input allows for cascading external fault contacts through the AMPS-24/E reporting framework.
Installation Constraints and Enclosure Mapping
- Chassis Grounding: The module requires rigid grounding. Mount the PCB assembly directly to the metal standoffs inside a compatible enclosure (such as the CAB-4 Series, EQ Cabinet Series, or BB-100/BB-200 Battery Backbox) to ensure low-impedance structural bonding.
- Terminal Limitations: Tighten screw terminal connections to a maximum specification of 9 in-lbs. Exceeding this torque threshold risks stripping terminal threading or introducing microscopic fractures into the underlying trace paths.
- AC Power Isolation: Before servicing the power supply or modifying battery charger jumpers, isolate the dedicated 220–240 V AC branch circuit. Do not engage or break the battery wiring harness under active load conditions to minimize the risk of arcing and component degradation.
Frequently Asked Questions
Can this module be used on a standard 120 V AC line?
No. The AMPS-24/E is strictly configured for 220–240 V AC nominal inputs. For standard North American 120 V AC utility connections, the domestic AMPS-24 model must be deployed instead.
What happens if the charger selection jumper is set lower than the battery pack requirement?
If a 100 Ah battery pack is connected while the charger is left at the 1.0 A parameter, the module will fail to recharge the standby battery assembly within the mandated NFPA 72 48-hour recovery window. This misconfiguration may also flag a continuous charger fault or degrade long-term battery lifespan due to chronic undercharging.
Does the AMPS-24/E require a dedicated SLC address?
Yes, when utilized in its fully supervised, intelligent configuration, it maps directly to one address on the host FACP Signaling Line Circuit. However, it can also function as a non-addressable, standalone power source if the SLC lines are left disconnected; in this scenario, fault tracking is restricted to local onboard LED indicators and the basic hardware trouble contacts.
For a visual overview of how this power supply operates and integrates within a standard panel assembly, you can review the Notifier AMPS-24 Power Supply Overview. This video provides an overview of the hardware layout and technical implementation within an NFS2-3030 control environment.
