Series MT Strobe and Multi-tone Notification Devices

The Harding Series MT and MT Strobe Multi-tone electronic
appliances offer a choice of eight (8) nationally and internationally recognized alerting sounds: Horn, Bell, March
Time Horn, Code-3 Tone, Code-3 Horn, Slow Whoop, Siren or Hi/Lo Tone.

Distributed Architecture

All FC-250 modules operate independently. There is no central operating system, no central point of failure. Processing power is distributed throughout the campus, increasing system survivability, eliminating home-run wiring costs while decreasing downtime due to system maintenance.

Highly Survivable

Since NAC’s and SLC’s are grouped on the same module and events are processed locally, ALM modules will perform local operations even if network communication has been severed. Distributed modules also minimize campus-wide downtime by restricting maintenance to the local module.

The Code-3 Horn and tone patterns are engineered to comply with NFPA/ANSI Temporal Pattern specifications without requiring additional equipment. With MT and MT Strobe appliances, one alarm appliance meets most of your signaling needs. The MT strobes can be synchronized using the Wheelock DSM Sync Modules, Wheelock Power Supplies or other manufacturers panel incorporating the Wheelock Sync Protocol. The MT Strobes are designed for ADA applications while meeting or exceeding the latest requirements of NFPA 72, ANSI 117.1, UFC and UL Standard 1971 as well as meeting ADA requirements concerning photosensitive epilepsy.

  • MT-12/24-R 
  • MT-12/24-W
  • MT-241575W-FR#
  • MT-24MCW-FR
  • MT-24MCW-FW 
  • MT-24MCW-AR*** 
  • MT-121575W-FR#
  • MT-121575W-NW 
  • MTWP-2475W-FR** 
  • MTWP-2475W-NW** 
  • MT4-115-R 
  • MT4-115-S
  • MT4-115-WH-VFR##
  • MT4-12/24-R 
  • MT4-12/24-S

Model                   Input Voltage               Mounting options

MT-12/24-R                12/24                        D,E,F,L,M,O,P,R
MT-12/24-W               12/24                        D,E,F,L,M,O,P,R
MT-241575W-FR#            24                        D,E,F,L,M,O,P,R
MT-24MCW-FR                24                        D,E,F,L,M,O,P,R
MT-24MCW-FW               24                        D,E,F,L,M,O,P,R
MT-24MCW-AR***           24                        D,E,F,L,M,O,P,R
MT-121575W-FR#       12                             D,E,F,L,M,O,P,R
MT-121575W-NW       12                             D,E,F,L,M,O,P,R
MTWP-2475W-FR**         24                                    M
MTWP-2475W-NW**       24                                    M
MT4-115-R                  120 VAC                    D,E,J,K,N,O,R
MT4-115-S                   120 VAC                   D,E,J,K,N,O,R
MT4-115-WH-VFR##   120 VAC                   D,E,J,K,N,O,R
MT4-12/24-R               12/24                        D,E,J,K,N,O,R
MT4-12/24-S               12/24                        D,E,J,K,N,O,R

The notification appliance shall be a Harding Series MT audible/visual appliance or equivalent. Notification appliance shall be electronic and use solid state components. Electromechanical alternatives are not approved. Each electronic appliance shall provide eight (8) field selectable alarm tones. The tones shall consist of: HORN, BELL, MARCH TIME HORN, CODE-3 HORN, CODE-3 TONE, SLOW WHOOP, SIREN and HI/LO. Tone selection shall be by durable dip switch assembly and not clips or jumpers. The Multitone Audible appliance shall be UL Listed under Standard 464 for Audible Signal Appliances. The audible and the strobe shall be able to operate from a single NAC circuit while producing any of these tones. The appliance shall provide two output sound levels: STANDARD and HIGH dBA. The HIGH dBA setting shall provide a minimum 5 dBA increase in sound output at nominal voltage. The HIGH anechoic dBA measurement at 10 feet at the alarm HORN SETTING shall be 99 dBA minimum. Operating voltages shall be either 12 VDC or 24 VDC using filtered power or unfiltered power supply (full-wave-rectified). All models shall have provisions for standard reverse polarity type supervision and IN/OUT field wiring using terminals that accept #12 to #18 AWG wiring. Combination audible/visual appliances shall incorporate a Xenon flashtube enclosed in a rugged Lexan® lens or equivalent with solid state circuitry. Strobe shall produce a flash rate of one (1) flash per second minimum over the voltage range. The MT strobe intensity shall be rated per UL and Listed under Standard 1971 for Signaling Devices for the Hearing Impaired for 1575cd multi-candela with field selectable 15/30/75/110 candela settings. The 1575 candela strobe shall be specified when 15 candela or with 75 candela intensity on-axis is required. Strobe Models shall incorporate circuitry for synchronized strobe flash and shall be designed for compatibility with Wheelock DSM Sync Modules, Harding Power Supplies or other manufacturers panels with built-in Wheelock Sync Protocol. The strobes shall not drift out of synchronization at any time during operation. If the module fails to operate (i.e., contacts remain closed), the strobes shall revert to a non-synchronized default flash rate. Strobe activation shall be via independent input or from the same input circuit as the audible. The combination audible/visual appliances shall be installed indoors and may be surface or flush mounted. They shall mount to standard electrical hardware requiring no additional trimplate or adapter. The aesthetic appearance shall not have any mounting holes or screw heads visible when the installation is completed. The appliance shall be finished in a textured red color.
The Series MT-12/24, MTWP and MT4 appliances may be installed indoor or outdoor with the proper back box.

About

The Code-3 Horn and tone patterns are engineered to comply with NFPA/ANSI Temporal Pattern specifications without requiring additional equipment. With MT and MT Strobe appliances, one alarm appliance meets most of your signaling needs. The MT strobes can be synchronized using the Wheelock DSM Sync Modules, Wheelock Power Supplies or other manufacturers panel incorporating the Wheelock Sync Protocol. The MT Strobes are designed for ADA applications while meeting or exceeding the latest requirements of NFPA 72, ANSI 117.1, UFC and UL Standard 1971 as well as meeting ADA requirements concerning photosensitive epilepsy.

  • MT-12/24-R 
  • MT-12/24-W
  • MT-241575W-FR#
  • MT-24MCW-FR
  • MT-24MCW-FW 
  • MT-24MCW-AR*** 
  • MT-121575W-FR#
  • MT-121575W-NW 
  • MTWP-2475W-FR** 
  • MTWP-2475W-NW** 
  • MT4-115-R 
  • MT4-115-S
  • MT4-115-WH-VFR##
  • MT4-12/24-R 
  • MT4-12/24-S
Data Sheet
Specs

Model                   Input Voltage               Mounting options

MT-12/24-R                12/24                        D,E,F,L,M,O,P,R
MT-12/24-W               12/24                        D,E,F,L,M,O,P,R
MT-241575W-FR#            24                        D,E,F,L,M,O,P,R
MT-24MCW-FR                24                        D,E,F,L,M,O,P,R
MT-24MCW-FW               24                        D,E,F,L,M,O,P,R
MT-24MCW-AR***           24                        D,E,F,L,M,O,P,R
MT-121575W-FR#       12                             D,E,F,L,M,O,P,R
MT-121575W-NW       12                             D,E,F,L,M,O,P,R
MTWP-2475W-FR**         24                                    M
MTWP-2475W-NW**       24                                    M
MT4-115-R                  120 VAC                    D,E,J,K,N,O,R
MT4-115-S                   120 VAC                   D,E,J,K,N,O,R
MT4-115-WH-VFR##   120 VAC                   D,E,J,K,N,O,R
MT4-12/24-R               12/24                        D,E,J,K,N,O,R
MT4-12/24-S               12/24                        D,E,J,K,N,O,R

Architects

The notification appliance shall be a Harding Series MT audible/visual appliance or equivalent. Notification appliance shall be electronic and use solid state components. Electromechanical alternatives are not approved. Each electronic appliance shall provide eight (8) field selectable alarm tones. The tones shall consist of: HORN, BELL, MARCH TIME HORN, CODE-3 HORN, CODE-3 TONE, SLOW WHOOP, SIREN and HI/LO. Tone selection shall be by durable dip switch assembly and not clips or jumpers. The Multitone Audible appliance shall be UL Listed under Standard 464 for Audible Signal Appliances. The audible and the strobe shall be able to operate from a single NAC circuit while producing any of these tones. The appliance shall provide two output sound levels: STANDARD and HIGH dBA. The HIGH dBA setting shall provide a minimum 5 dBA increase in sound output at nominal voltage. The HIGH anechoic dBA measurement at 10 feet at the alarm HORN SETTING shall be 99 dBA minimum. Operating voltages shall be either 12 VDC or 24 VDC using filtered power or unfiltered power supply (full-wave-rectified). All models shall have provisions for standard reverse polarity type supervision and IN/OUT field wiring using terminals that accept #12 to #18 AWG wiring. Combination audible/visual appliances shall incorporate a Xenon flashtube enclosed in a rugged Lexan® lens or equivalent with solid state circuitry. Strobe shall produce a flash rate of one (1) flash per second minimum over the voltage range. The MT strobe intensity shall be rated per UL and Listed under Standard 1971 for Signaling Devices for the Hearing Impaired for 1575cd multi-candela with field selectable 15/30/75/110 candela settings. The 1575 candela strobe shall be specified when 15 candela or with 75 candela intensity on-axis is required. Strobe Models shall incorporate circuitry for synchronized strobe flash and shall be designed for compatibility with Wheelock DSM Sync Modules, Harding Power Supplies or other manufacturers panels with built-in Wheelock Sync Protocol. The strobes shall not drift out of synchronization at any time during operation. If the module fails to operate (i.e., contacts remain closed), the strobes shall revert to a non-synchronized default flash rate. Strobe activation shall be via independent input or from the same input circuit as the audible. The combination audible/visual appliances shall be installed indoors and may be surface or flush mounted. They shall mount to standard electrical hardware requiring no additional trimplate or adapter. The aesthetic appearance shall not have any mounting holes or screw heads visible when the installation is completed. The appliance shall be finished in a textured red color.
The Series MT-12/24, MTWP and MT4 appliances may be installed indoor or outdoor with the proper back box.

Menu