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China Good Price Plug-in Special Purpose Supervisory Switch UL FM

Basic Info

Model No.:  PSP1

Product Description

Model NO.: PSP1 Number of Switch: Single Control Switch Usage: Control Switch Explosion-proof Type: Flameproof Contact Type: Type c Contact Brand: System Sensor International Certification: FM UL cUL Mea Delivery Time: Within 7days Maximum Operating Current: 250 Ma Cable: 2 Wire, 18 Gauge Waterproof, 8 Feet Long (2.4 M) Enclosure Rating: NEMA 3 UL Indoor/Outdoor Rated Trademark: System Sensor Specification: Standard Type: Electronic Structure: Power Built-in Type Application: Home, Commercial, Industrial, Vehicles Contact: Normally Open Detection Method: Retro-reflective Mode Certification: UL, FM UL cUL Mea Shipping Weight: 1.7 Lbs. (0.8 Kg) U.S. Patent No.: 6,037,867 Operating Voltage: 6/12/24V AC/DC Cover Tamper Switch: Standard Dimensions with Bracket: 8 1/2′′l (21.5 Cm) Transport Package: as Customer Require Origin: China China Good Price Plug-in Special Purpose Supervisory Switch UL FM

PSP1 Plug-in 
Special Purpose
Supervisory Switch

General     Description

System Sensor's PSP1 plug-in switch is a special application supervisory switch designed for applications where no Other type of listed valve supervisory switch can be installed.

Application Flexibility. The PSP1 is to be used on non-rising stem gate valves and ball and angle valves. The unit is approved for Class A and Class B circuits.
Robust Construction. The PSP1 consists of a rugged rain tight metal housing. With its NEMA 3 rated housing and water-resistant cord, the PSP1 may be used in either indoor or outdoor applications.

Simplified Operation. The PSP1 features a 360° versatile mounting design and an adjustable length cord which allow more freedom to install the unit at the most desirable alignment angle.

Reliable Performance. The PSP1 employs a supervisory cord which, when pulled out, closes a set of normally open contacts. A lockout feature prevents reinsertion of the cord until the cover is removed, and the unit is reset. Removal of the cover or cutting of the cord results in an open circuit.


• Monitors non-rising stem gate and ball and angle valves

• NEMA 3 rated enclosures

• 360° mounting design provides greater installation flexibility

• Adjustable length supervisory cord

• Lockout feature ensures alarm signal integrity

• Cover tamper switch factory installed

• Tamper-resistant cover screws

Architectural/Engineering Specifications

Model shall be a model number PSP1 special purpose supervisory switch as manufactured by System Sensor. The unit is not intended or designed for ordinary 
usage. It is a special application device to be used for unusual conditions where no other approved or listed method of protection is available or practical,
such as non-rising stem gate valves. When installed on a non-rising stem gate valve, turning the valve wheel will pull the plug out of the jack and close a set of 
normally open contacts. A lockout will prevent reinsertion and will require removal of the cover. Tamper-proof screws are provided for the cover. Removal of the 
cover, cutting of the cord, or ground faults will cause an open circuit. The device should be wired to the trouble circuit of a fire alarm control panel. The PSP1 
shall be capable of operating on Class A or Class B circuits. The PSP1 shall be NEMA 3 rated for indoor/outdoor use and shall have an operating temperature 
range of -4°F to 149°F (-20°C to 65°C). The PSP1 shall be listed by Underwriters Laboratories and Underwriters Laboratories of Canada, Inc. and shall be Factory
Mutual approved.

Physical/Electrical Specifications

Dimensions 4¾ ˝L × 3˝W × 2½˝D (12 cm × 7.5 cm × 5.6 cm)
Dimensions with Bracket 8½˝L (21.5 cm)
Shipping Weight 1.7 lbs. (0.8 kg)
Operating Temperature Range -4°F to 149°F (-20°C to 65°C)
Enclosure Rating NEMA 3 UL Indoor/Outdoor Rated
Cover Tamper Switch Standard
Cable 2 wire, 18 gauge waterproof, 8 feet long (2.4 m)
Operating Voltage 6/12/24V AC/DC
Maximum Operating Current 250 mA
Warranty 3 years
U.S. Patent Number 6,037,867

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