AMETEK 90P18X6D1C4D PANALARM 90P18 series power module
The 90P18X6D1C4D is a high‑reliability industrial power supply module manufactured by AMETEK PANALARM, belonging to the 90P18 series (part of the legacy Series 90 Annunciator System). It is a 450W enclosed AC‑DC power supply designed to provide stable, regulated DC power for PANALARM annunciator panels and critical industrial alarm/monitoring systems. The unit features fan cooling, rugged metal construction, and built‑in protection circuits for continuous duty in harsh environments.

Applications
- Annunciator Systems: Primary power source for AMETEK PANALARM Series 90 alarm annunciator panels.
- Industrial Control Rooms: Powering alarm modules, indicator lights, and sequence‑of‑events (SOE) systems.
- Process Monitoring: Backup/primary power for critical alarm circuits in manufacturing plants.
- Legacy System Upgrades: Replacement power supply for older PANALARM 90P18 series installations.
- Critical Infrastructure: Used in power generation, oil & gas, and petrochemical facilities for alarm system reliability.
Operating Environment
| Parameter | Specification |
|---|---|
| Ambient Temperature | 0 °C to +50 °C (operation); −20 °C to +70 °C (storage) |
| Relative Humidity | 5 % to 95 % (non‑condensing) |
| Altitude | ≤ 2000 m (derate 10 % per 1000 m above 2000 m) |
| Vibration | ≤ 0.2 g (10–150 Hz) |
| Protection Class | IP20 (enclosed metal chassis) |
| Cooling | Integrated axial fan (forced air) |
| Pollution Degree | 2 (industrial indoor use) |

Technical Specifications
| Parameter | 90P18X6D1C4D |
|---|---|
| Brand/Series | AMETEK PANALARM, 90P18 Series (Series 90 Annunciator) |
| Input Voltage | 120/240 VAC ±10 %, 50/60 Hz (auto‑ranging) |
| Output Voltage | 125 VDC (regulated) |
| Output Current | 4.5 A (continuous) |
| Output Power | 450 W (max) |
| Ripple & Noise | ≤ 150 mVpp |
| Protection | Over‑voltage (OVP), over‑current (OCP), over‑temperature (OTP), short‑circuit |
| Dimensions (W×H×D) | Approx. 254 × 178 × 356 mm (10 × 7 × 14 in) |
| Weight | Approx. 13.6 kg (30 lbs) |
| Mounting | Floor or rack‑mount (chassis) |
| Status | Obsolete (EOL); replaced by Series 90B power supplies |
Typical Industry Sectors
- Power Generation: Fossil, nuclear, and hydroelectric plants (alarm/annunciator systems).
- Oil & Gas: Refineries, pipelines, and offshore platforms (process alarm monitoring).
- Petrochemical & Chemical: Hazardous process control and safety alarm systems.
- Water/Wastewater Treatment: Pump station and plant‑wide alarm annunciators.
- Heavy Manufacturing: Steel, pulp & paper, and automotive (legacy alarm systems).
Related Series Products (90P18 Family)
- 90P18X6D1C6D
- 125 VDC, 4.9 A, 450 W; upgraded fan and terminal block configuration.
- 90P12X125DC24FC
- 125 VDC, 2.4 A, 250 W; compact 90P12 series for lower‑power annunciators.
- 90P2X120AC4FC
- 120 VAC input, 4.5 A, 450 W; 90P2 series for 120 V‑only industrial sites。
















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