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PS-40-EX | Potter Explosion-Proof Pressure Supervisory Switch for Fire Sprinkler Systems
- Regular price
- $994.00
- Sale price
- $994.00
- Regular price
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Product Description P/N: PS-40-EX
Description
The Potter PS-40-EX Explosion-Proof Pressure Supervisory Switch is a rugged device designed to detect abnormal pressure conditions in fire sprinkler systems installed in hazardous locations. Built with a durable cast aluminum enclosure, this model (part number PS-40-EX) is UL, FM, and CSFM approved for use in Class I, II, and III, Division 1 areas. It provides reliable performance under harsh environmental conditions and ensures compliance with NFPA-13 and NFPA-72 standards for fire protection systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Potter |
| Category | Fire Sprinkler System Components |
| Part Number | PS-40-EX |
| Subcategory | Explosion-Proof Pressure Supervisory Switch |
| Pressure Range | 10–175 PSI (0.7–12.1 BAR) |
| Factory Settings | Decrease at 30 PSI (2.1 BAR); Increase at 50 PSI (3.5 BAR) |
| Maximum System Pressure | 250 PSI (17.24 BAR) |
| Switch Type | Two SPDT (Form C) contacts |
| Electrical Rating | 15A at 125/250 VAC; 2A at 30 VDC |
| Enclosure Material | Cast aluminum |
| Enclosure Rating | NEMA 4 and 9 |
| Pressure Connection | 1/2" NPT male brass fitting |
| Conduit Entrance | 1/2" NPT female conduit opening |
| Operating Temperature | -40°F to 140°F (-40°C to 60°C) |
| Certification | UL, FM, CSFM, CUL, NYMEA |
| Hazardous Location Rating | Class I (Groups B, C, D), Class II (E, F, G), Class III, Div. 1 |
| Compliance | NFPA-13 and NFPA-72 |
| Dimensions | 6" W × 7" H (152 mm × 178 mm) |
| Country of Origin | United States |
| Weight | 4.8 lbs |
Information About PS-40-EX
The PS-40-EX is an explosion-proof pressure switch from Potter’s industrial-grade supervisory line, engineered for automatic sprinkler and fire alarm systems. It operates within a pressure range of 10 to 175 PSI and comes factory set with dual switch points—one for low pressure (30 PSI) and one for high pressure (50 PSI). The unit includes two SPDT (Form C) contacts capable of switching up to 15 amps at 250 VAC, providing dependable control and monitoring. Designed for use in hazardous, indoor, or outdoor environments, its NEMA 4 and 9 rated cast aluminum housing ensures weather resistance and safety in explosive atmospheres.
Key Features:
- Explosion-Proof Design: Certified for Class I, II, and III, Division 1 hazardous locations to ensure operational safety.
- Dual Pressure Monitoring: Detects both high and low pressure deviations from normal system operation.
- Wide Pressure Range: Adjustable between 10 and 175 PSI to suit a variety of system requirements.
- Rugged Construction: Cast aluminum enclosure rated NEMA 4 and 9 for corrosion resistance and durability.
- High Electrical Capacity: Two SPDT (Form C) contacts rated 15A at 125/250 VAC and 2A at 30 VDC.
- Temperature Resilience: Operates reliably in environments from -40°F to 140°F (-40°C to 60°C).
- Easy Installation: Includes 1/2" NPT brass pressure connection and 1/2" NPT conduit entrance.
- Code Compliance: Meets NFPA-13 and NFPA-72 standards for sprinkler and alarm systems.
The PS-40-EX delivers the reliability and precision required for explosion-proof fire sprinkler pressure monitoring and supervisory applications.
Description
The Potter PS-40-EX Explosion-Proof Pressure Supervisory Switch is a rugged device designed to detect abnormal pressure conditions in fire sprinkler systems installed in hazardous locations. Built with a durable cast aluminum enclosure, this model (part number PS-40-EX) is UL, FM, and CSFM approved for use in Class I, II, and III, Division 1 areas. It provides reliable performance under harsh environmental conditions and ensures compliance with NFPA-13 and NFPA-72 standards for fire protection systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Potter |
| Category | Fire Sprinkler System Components |
| Part Number | PS-40-EX |
| Subcategory | Explosion-Proof Pressure Supervisory Switch |
| Pressure Range | 10–175 PSI (0.7–12.1 BAR) |
| Factory Settings | Decrease at 30 PSI (2.1 BAR); Increase at 50 PSI (3.5 BAR) |
| Maximum System Pressure | 250 PSI (17.24 BAR) |
| Switch Type | Two SPDT (Form C) contacts |
| Electrical Rating | 15A at 125/250 VAC; 2A at 30 VDC |
| Enclosure Material | Cast aluminum |
| Enclosure Rating | NEMA 4 and 9 |
| Pressure Connection | 1/2" NPT male brass fitting |
| Conduit Entrance | 1/2" NPT female conduit opening |
| Operating Temperature | -40°F to 140°F (-40°C to 60°C) |
| Certification | UL, FM, CSFM, CUL, NYMEA |
| Hazardous Location Rating | Class I (Groups B, C, D), Class II (E, F, G), Class III, Div. 1 |
| Compliance | NFPA-13 and NFPA-72 |
| Dimensions | 6" W × 7" H (152 mm × 178 mm) |
| Country of Origin | United States |
| Weight | 4.8 lbs |
Information About PS-40-EX
The PS-40-EX is an explosion-proof pressure switch from Potter’s industrial-grade supervisory line, engineered for automatic sprinkler and fire alarm systems. It operates within a pressure range of 10 to 175 PSI and comes factory set with dual switch points—one for low pressure (30 PSI) and one for high pressure (50 PSI). The unit includes two SPDT (Form C) contacts capable of switching up to 15 amps at 250 VAC, providing dependable control and monitoring. Designed for use in hazardous, indoor, or outdoor environments, its NEMA 4 and 9 rated cast aluminum housing ensures weather resistance and safety in explosive atmospheres.
Key Features:
- Explosion-Proof Design: Certified for Class I, II, and III, Division 1 hazardous locations to ensure operational safety.
- Dual Pressure Monitoring: Detects both high and low pressure deviations from normal system operation.
- Wide Pressure Range: Adjustable between 10 and 175 PSI to suit a variety of system requirements.
- Rugged Construction: Cast aluminum enclosure rated NEMA 4 and 9 for corrosion resistance and durability.
- High Electrical Capacity: Two SPDT (Form C) contacts rated 15A at 125/250 VAC and 2A at 30 VDC.
- Temperature Resilience: Operates reliably in environments from -40°F to 140°F (-40°C to 60°C).
- Easy Installation: Includes 1/2" NPT brass pressure connection and 1/2" NPT conduit entrance.
- Code Compliance: Meets NFPA-13 and NFPA-72 standards for sprinkler and alarm systems.
The PS-40-EX delivers the reliability and precision required for explosion-proof fire sprinkler pressure monitoring and supervisory applications.
