NOTIFIER AMPS-24 — an addressable power supply and battery charger with up to three 24 VDC outputs, for the NFS-3030, NFS2-3030 and NCA-2.
It operates in either FlashScan® or CLIP (Classic Loop Interface Protocol) mode with the NFS-3030/NFS2-3030 Fire Alarm Control Panel, and can also be used as the primary power supply for the NCA-2 Network Control Annunciator. Being addressable, the supply reports its own condition — AC loss, brownout, battery and battery charger trouble — back to the panel as points rather than as a single dry-contact trouble.
Features
- Addressable by NFS-3030/NFS2-3030 FACP.
- Selectable charging current charges 7 AH to 200 AH batteries.
- Isolated Signaling Line Circuit (SLC) interface.
- Trouble bus input for use with normally-open dry contacts or open-collector circuit.
- USB Type B connector for programming installation parameters.
- Brownout detection.
- Battery / battery charger supervision.
- AC loss detection and AC loss delay reporting.
- Mounts in a CAB-4 Series enclosure, EQ Cabinet Series enclosure, BB-25, BB-100, or BB-200 Battery Backbox.
Specifications
| Primary (AC) power — AMPS-24 |
110–120 VAC, 50/60 Hz input, 5 A maximum |
| Primary (AC) power — AMPS-24E |
220–240 VAC, 50/60 Hz input, 2.5 A maximum |
| MAIN 24V output |
Filtered, power-limited power (current depends on charger configuration — see table below) |
| AUX 24V output |
Filtered, power-limited power for additional components |
| Battery charging circuit |
Current-limited sealed lead-acid charger, 7 to 200 AH batteries |
| Selectable charging current |
1.0 A, 2.0 A or 5.0 A |
| Secondary power auxiliary outputs |
24 V @ 0.5 A and 5 V @ 0.15 A |
| Wire sizes |
10 AWG (5.26 mm²) to 22 AWG (0.326 mm²) |
| Battery fuse (F2) |
15 A, fast-acting |
| Shipping weight |
4.25 lb |
| UL |
S635 |
| ULC |
CS118 |
| FM |
Approved |
| CSFM |
7165-0028:224 |
| MEA |
345-02-E |
| FDNY |
#6026 |
| Other approvals |
City of Chicago; City of Denver |
| Country of origin |
Made in the U.S.A. |
Output current by charger setting
| Charger setting / battery size |
MAIN 24V (TB1) max. current |
Total AUX 24V max. current |
| 1 A / 7–26 AH batteries |
5 A |
3 A |
| 2 A / 12–60 AH batteries |
5 A |
3 A |
| 5 A / 55–200 AH, Configuration 1 |
5 A |
0 A |
| 5 A / 55–200 AH, Configuration 2 |
3 A |
1 A |
| Disabled |
5 A |
5 A |
Total AUX 24V is the maximum current for all AUX 24 volt outputs. Note that TB2 on the CPS-24 is limited to 0.5 A.
Installation notes
-
Charging a large battery costs you output current: at the 5 A charger setting for 55–200 AH batteries, Configuration 1 leaves 0 A of AUX 24V, and Configuration 2 drops MAIN 24V to 3 A. Size the batteries and the auxiliary load together, not separately.
-
Match the charger setting to the actual battery: the three settings correspond to defined battery ranges — 1 A for 7–26 AH, 2 A for 12–60 AH, 5 A for 55–200 AH.
-
Line voltage is model-specific: the AMPS-24 is a 110–120 VAC unit. For 220–240 VAC service order the AMPS-24E — they are not field-convertible.
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Enclosure required: the supply mounts in a CAB-4 Series enclosure, EQ Cabinet Series enclosure, BB-25, BB-100, or BB-200 Battery Backbox, which is a separate order.
-
Programming: installation parameters are set through the USB Type B connector.
-
Battery fuse: F2 is a 15 A fast-acting fuse — replace only with the same rating.
Related models
-
AMPS-24E — same power supply configured for 220–240 VAC operation.
Specifications taken from the NOTIFIER data sheet "AMPS-24/E Power Supply for the NFS-3030, NFS2-3030 and NCA-2," document DN-6883:B (10/15/09). Manufacturer specifications are subject to change without notice.
