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Protectowire Fire Alarm Panels- Protectowire Model SRP

Protectowire Fire Alarm System

Protectowire Fire Alarm Systems- Fire Alarm Panels- Protectowire SRP - by Koetter Fire Protection - Dallas, Texas

Fire Alarm Control Panel Model SRP-4x4

The Model SRP-4x4 is an FM Approved, Fire Alarm/Releasing Control Panel. Although it is primarily designed for use as a releasing panel for Pre-action and Deluge water-based extinguishing systems, it may also be used as a stand alone Fire Alarm Control Panel and is ideally suited for many commercial and light industrial applications.

The unit consists of a single multifunction control board for flexibility in adapting to individual job requirements. Field programmable inputs and outputs, detection circuits capable of Class A (Style D) or Class B (Style B) service, battery charger/monitor, lamp and trouble circuit test and ground fault detection are standard features of the control panel. The versatile single board configuration eliminates custom assembly of multiple modules thus ensuring a streamlined system.

Fire Alarm Panel Design Features

The SRP-4x4 is a field programmable four zone control panel designed for use with Protectowire Linear Heat Detector, two wire smoke and heat detectors, flame detectors and direct shorting devices such as manual pull stations and water flow switches. When properly configured, the panel is FM approved for automatic release service.

The unit comes completely assembled in a surface mounted enclosure. The traditional red textured finish resists scratches and the durable, heavy-gauge steel cabinet has sliphinges for easy removal of the door allowing for greater access to the control panel during installation or service.


  • Four zone fire alarm control and release panel
  • Initiating circuits capable of Class A (Style D) or Class B (Style B) Service
  • Field programmable inputs and outputs
  • Ground fault detection
  • Lamp and system trouble test
  • Protectowire Alarm Point Location Meter available

Alarm Panel Configuration

The control panel provides four Class A or B (Style D or B) Initiating Circuits, one dedicated Class B (Style B) Supervisory Circuit, and four Class B (Style Y) Output Circuits. An optional Class A (Style Z) Output Module is available.

Alarm System Programming

The four input circuits and four output circuits are field programmable by utilizing a set of simple to operate dip switches. The four output circuits are configured and mapped to inputs during the programming process. Output 1 is reserved for use as a general alarm notification appliance circuit, while Outputs 2, 3, and 4 can be configured in various combinations as solenoid release circuits, or notification appliance circuits suitable for fire alarm, water flow, or supervisory signaling. For ease of servicing, Outputs 2, 3, and 4 have a disconnect switch to prevent accidental operation. When activated, the disconnect switch causes an off-normal trouble indication at the control panel.

Alarm System Visual Indicators

Five system status indicators are mounted on the main control board. A green Power On LED, and four yellow LEDís indicating Ground Fault, Battery Trouble, System Trouble, and System Silence. Additional red and yellow LEDís are provided for each of the four input and four output circuits to indicate individual zone Alarm and Trouble. The dedicated supervisory circuit is provided with two yellow LEDís to indicate zone alarm and trouble.

Alarm System Controls

The system controls consist of three momentary push button switches that provide the following functions: System Silence, System Reset, and Lamp/Trouble Test. The switches are located on the main control board and are accessible only by unlocking the enclosure door.

Fire Alarm Panel Options

Protectowire Alarm Point Location Meter

The SRP-4x4 Control Panel is available with the PDM-1000-3 Alarm Point Location Meter. This unique feature is designed to locate a heat-actuated point on the Protectowire Linear Heat Detector. The high intensity LCD meter will display the distance in feet or meters from the start of the Detector portion of the zone to the heat actuated point on the Protectowire Linear Heat Detector.

Class A (Style Z) Output Circuits

A conversion Module, Model AM-91-2, is available to convert the standard Class B (Style Y) output circuits to Class A (Style Z) operation. Each AM-91-2 Module will convert two output circuits.

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