.svg?v=180920048278408794651776809924){kind=small}
Edwards EST PS8B 24 VDC 7.5A Fire Alarm Power Supply for IRC-3 Systems
- Regular price
- $2,299.00
- Sale price
- $2,299.00
- Regular price
-
Couldn't load pickup availability
Product Description P/N: PS8B
Description
The Edwards EST PS8B is a 24 VDC fire alarm power supply designed for use with compatible EST IRC-3 and FCC systems. It provides up to 7.5 A of alarm current, integrated battery charging, ground-fault and low-battery supervision, and dedicated power for connected fire alarm equipment.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Edwards EST |
| Category | Fire Alarm System Components |
| Part Number | PS8B |
| Subcategory | Fire Alarm Power Supplies |
| Compatible System | EST IRC-3 / FCC |
| Input Voltage | 120 VAC, 50/60 Hz |
| Maximum Input Current | 2 A |
| Alarm Output Current | 7.5 A maximum at 24 VDC |
| Supervisory Output Current | 2.25 A maximum |
| Battery Charger Voltage | 26.8 VDC maximum |
| Battery Charger Current | 4.0 A maximum |
| Trickle Charge Current | 10 mA |
| Maximum Battery Capacity | 60 Ah |
| Battery Type | Sealed Gel Cell / Lead Acid |
| Logic Supply | 5 VDC, 1 A maximum |
| Ground Fault Detection | 10 kΩ low sense / 47 kΩ high sense |
| Brownout Detection | 96 VAC |
| Low Battery Detection | 20.4 VDC |
| Low Battery Cutoff | 18.4 VDC |
| Maximum Ripple | 55 mV |
| Smoke Detector Output | 24 VDC nominal @ 500 mA |
| Alarm Relay Contact Rating | 2 A @ 24 VDC |
| Mounting | 1 standard module footprint |
| Weight | 4 lb |
Information About PS8B
The PS8B is an Edwards EST power supply module intended for installation within compatible IRC-3 fire alarm system equipment. It accepts 120 VAC input and converts it to regulated 24 VDC power for system operation and connected notification or control equipment. The module includes a battery charger supporting sealed gel-cell or lead-acid batteries with capacities up to 60 Ah. Built-in monitoring functions include ground-fault detection, brownout detection, low-battery detection, and low-battery cutoff.
Key Features:
- 24 VDC Power Supply: Provides regulated 24 VDC power for compatible Edwards EST fire alarm equipment.
- 7.5 A Alarm Capacity: Supports up to 7.5 A of 24 VDC alarm current.
- Integrated Battery Charger: Provides charging current up to 4.0 A for compatible backup batteries.
- Large Battery Support: Accommodates sealed gel-cell or lead-acid batteries up to 60 Ah.
- Ground-Fault Detection: Provides supervised ground-fault monitoring using selectable sensing thresholds.
- Low-Battery Protection: Detects low battery conditions and provides cutoff at approximately 18.4 VDC.
- Smoke Detector Output: Provides a nominal 24 VDC output rated at 500 mA for compatible smoke detector applications.
- Compact Installation: Occupies one standard module footprint within compatible fire alarm equipment.
The PS8B delivers the reliability and precision required for fire alarm system power distribution, supervision, and backup-power management.
Description
The Edwards EST PS8B is a 24 VDC fire alarm power supply designed for use with compatible EST IRC-3 and FCC systems. It provides up to 7.5 A of alarm current, integrated battery charging, ground-fault and low-battery supervision, and dedicated power for connected fire alarm equipment.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Edwards EST |
| Category | Fire Alarm System Components |
| Part Number | PS8B |
| Subcategory | Fire Alarm Power Supplies |
| Compatible System | EST IRC-3 / FCC |
| Input Voltage | 120 VAC, 50/60 Hz |
| Maximum Input Current | 2 A |
| Alarm Output Current | 7.5 A maximum at 24 VDC |
| Supervisory Output Current | 2.25 A maximum |
| Battery Charger Voltage | 26.8 VDC maximum |
| Battery Charger Current | 4.0 A maximum |
| Trickle Charge Current | 10 mA |
| Maximum Battery Capacity | 60 Ah |
| Battery Type | Sealed Gel Cell / Lead Acid |
| Logic Supply | 5 VDC, 1 A maximum |
| Ground Fault Detection | 10 kΩ low sense / 47 kΩ high sense |
| Brownout Detection | 96 VAC |
| Low Battery Detection | 20.4 VDC |
| Low Battery Cutoff | 18.4 VDC |
| Maximum Ripple | 55 mV |
| Smoke Detector Output | 24 VDC nominal @ 500 mA |
| Alarm Relay Contact Rating | 2 A @ 24 VDC |
| Mounting | 1 standard module footprint |
| Weight | 4 lb |
Information About PS8B
The PS8B is an Edwards EST power supply module intended for installation within compatible IRC-3 fire alarm system equipment. It accepts 120 VAC input and converts it to regulated 24 VDC power for system operation and connected notification or control equipment. The module includes a battery charger supporting sealed gel-cell or lead-acid batteries with capacities up to 60 Ah. Built-in monitoring functions include ground-fault detection, brownout detection, low-battery detection, and low-battery cutoff.
Key Features:
- 24 VDC Power Supply: Provides regulated 24 VDC power for compatible Edwards EST fire alarm equipment.
- 7.5 A Alarm Capacity: Supports up to 7.5 A of 24 VDC alarm current.
- Integrated Battery Charger: Provides charging current up to 4.0 A for compatible backup batteries.
- Large Battery Support: Accommodates sealed gel-cell or lead-acid batteries up to 60 Ah.
- Ground-Fault Detection: Provides supervised ground-fault monitoring using selectable sensing thresholds.
- Low-Battery Protection: Detects low battery conditions and provides cutoff at approximately 18.4 VDC.
- Smoke Detector Output: Provides a nominal 24 VDC output rated at 500 mA for compatible smoke detector applications.
- Compact Installation: Occupies one standard module footprint within compatible fire alarm equipment.
The PS8B delivers the reliability and precision required for fire alarm system power distribution, supervision, and backup-power management.