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Ansul 437900 Discharge Pressure Pneumatic Switch for Fire Suppression System Electrical Control Applications
- Regular price
- $639.00
- Sale price
- $639.00
- Regular price
-
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Product Description P/N: 437900
Description
The Ansul 437900 is a discharge pressure pneumatic switch designed to activate electrical circuits when a compatible Ansul fire suppression system is discharged. Using agent pressure as the actuation source, this switch enables automatic shutdown of equipment, activation of alarms and indicator lights, or feedback communication with compatible AUTOPULSE® control panels. Its rugged industrial construction ensures dependable operation in commercial fire suppression applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Ansul |
| Category | Fire Suppression System Components |
| Part Number | 437900 |
| Subcategory | Pneumatic Pressure Switch |
| Product Type | Discharge Pressure Pneumatic Switch |
| Switch Configuration | Three-Pole Double-Throw (3PDT) |
| Body Material | Forged C37700 Brass |
| Housing Material | Cold Rolled Steel, Painted Red |
| Pressure Connection | 3/8 in. NPT Female |
| Actuation Pressure | Less than 50 psi (3.4 bar) |
| Maximum Working Pressure | 2900 psi (200.0 bar) |
| Proof Pressure | 8333 psi (574.5 bar) |
| Temperature Range | -4 °F to +130 °F (-20 °C to +54 °C) |
| Ingress Protection Rating | IP65 |
| Electrical Rating | 15 A at 125 VAC; 10 A at 250 VAC; 3/4 HP at 250 VAC |
| Electrical Connections | 1/2 in. and 3/4 in. conduit knockouts with #6-32 UNC terminal screws |
| Dimensions | 4.5 × 2.625 × 4.5 in. (114 × 67 × 114 mm) |
| Weight | 2.2 lb (1.0 kg) |
Information About 437900
The 437900 is a genuine Ansul discharge pressure pneumatic switch engineered for use with Ansul fire suppression systems where reliable pressure-actuated electrical switching is required. Featuring a three-pole, double-throw (3PDT) switch configuration, it allows multiple electrical circuits to be opened or closed simultaneously following system discharge. The switch is commonly used to disconnect single-phase or three-phase equipment, activate visual or audible notification devices, or transmit discharge status to an AUTOPULSE® fire suppression control panel. Its forged brass body, painted steel housing, and IP65-rated enclosure provide durability and dependable performance in demanding industrial and commercial environments.
Key Features:
- Pressure-Activated Operation: Uses fire suppression agent pressure to actuate electrical switching functions.
- Three-Pole Double-Throw Configuration: Controls multiple electrical circuits simultaneously through a 3PDT switch design.
- Equipment Shutdown Capability: Automatically disconnects compatible single-phase and three-phase equipment after system discharge.
- Fire Alarm Integration: Activates warning lights, audible alarms, or other notification devices when the suppression system operates.
- AUTOPULSE® Compatibility: Provides discharge status feedback to compatible Ansul AUTOPULSE® control panels.
- Heavy-Duty Construction: Features a forged C37700 brass body with a painted cold-rolled steel housing.
- IP65 Environmental Protection: Designed to resist dust and water ingress in commercial and industrial installations.
- High Pressure Rating: Supports working pressures up to 2900 psi with a proof pressure of 8333 psi.
The 437900 delivers the reliability and precision required for pressure-actuated electrical control and fire suppression system integration.
Description
The Ansul 437900 is a discharge pressure pneumatic switch designed to activate electrical circuits when a compatible Ansul fire suppression system is discharged. Using agent pressure as the actuation source, this switch enables automatic shutdown of equipment, activation of alarms and indicator lights, or feedback communication with compatible AUTOPULSE® control panels. Its rugged industrial construction ensures dependable operation in commercial fire suppression applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Ansul |
| Category | Fire Suppression System Components |
| Part Number | 437900 |
| Subcategory | Pneumatic Pressure Switch |
| Product Type | Discharge Pressure Pneumatic Switch |
| Switch Configuration | Three-Pole Double-Throw (3PDT) |
| Body Material | Forged C37700 Brass |
| Housing Material | Cold Rolled Steel, Painted Red |
| Pressure Connection | 3/8 in. NPT Female |
| Actuation Pressure | Less than 50 psi (3.4 bar) |
| Maximum Working Pressure | 2900 psi (200.0 bar) |
| Proof Pressure | 8333 psi (574.5 bar) |
| Temperature Range | -4 °F to +130 °F (-20 °C to +54 °C) |
| Ingress Protection Rating | IP65 |
| Electrical Rating | 15 A at 125 VAC; 10 A at 250 VAC; 3/4 HP at 250 VAC |
| Electrical Connections | 1/2 in. and 3/4 in. conduit knockouts with #6-32 UNC terminal screws |
| Dimensions | 4.5 × 2.625 × 4.5 in. (114 × 67 × 114 mm) |
| Weight | 2.2 lb (1.0 kg) |
Information About 437900
The 437900 is a genuine Ansul discharge pressure pneumatic switch engineered for use with Ansul fire suppression systems where reliable pressure-actuated electrical switching is required. Featuring a three-pole, double-throw (3PDT) switch configuration, it allows multiple electrical circuits to be opened or closed simultaneously following system discharge. The switch is commonly used to disconnect single-phase or three-phase equipment, activate visual or audible notification devices, or transmit discharge status to an AUTOPULSE® fire suppression control panel. Its forged brass body, painted steel housing, and IP65-rated enclosure provide durability and dependable performance in demanding industrial and commercial environments.
Key Features:
- Pressure-Activated Operation: Uses fire suppression agent pressure to actuate electrical switching functions.
- Three-Pole Double-Throw Configuration: Controls multiple electrical circuits simultaneously through a 3PDT switch design.
- Equipment Shutdown Capability: Automatically disconnects compatible single-phase and three-phase equipment after system discharge.
- Fire Alarm Integration: Activates warning lights, audible alarms, or other notification devices when the suppression system operates.
- AUTOPULSE® Compatibility: Provides discharge status feedback to compatible Ansul AUTOPULSE® control panels.
- Heavy-Duty Construction: Features a forged C37700 brass body with a painted cold-rolled steel housing.
- IP65 Environmental Protection: Designed to resist dust and water ingress in commercial and industrial installations.
- High Pressure Rating: Supports working pressures up to 2900 psi with a proof pressure of 8333 psi.
The 437900 delivers the reliability and precision required for pressure-actuated electrical control and fire suppression system integration.
