feature offers four field selectable candela strobe values – 15/75, 30/75, 75 or 110
• Strobe only operates in either sync or non-sync modes
• Steady-tone or temporal horn (92 dB @ 10 ft.
typical) with 15 mA horn current
• Single gang and universal mount configurations
• UL 1971 & UL 464 listed,
ULC, CSFM and NYMEA
• UL 1971 listed for both wall and ceiling mount
• ADA/NFPA/ANSI compliant
• Screw terminals accept 12 awg wire
• Strobe synchronization requires the Dual Sync
Control Module or PAD 3.
• Made in U.S.A., ISO 9001 quality crafted
All models of the U-MH series & U-MHT Series horns and horn/strobes provide a continuous or coded horn signal, depending on the pattern of the voltage applied.
Additionally models U-MHT-1G, U-MHT-1G-W, U-MHT, U-
MHT-W and U-MHT-MCS, U-MHT-MCS-W provide a field selectable temporal tone.
The Adapter feature offers four field selectable candela settings – 15/75, 30/75, 75 or 110
– Adapter selector switch
Models U-MH-1G, U-MH-1G-W & U-MHT-1G, U-MHT-1G-
W mount on a single gang box while the U-MH, U-MH-
W, U-MHT, U-MHT-W, U-MH-MCS, U-MH-MCS-W &
U-MHT-MCS, U-MHT-MCS-W have a universal mounting plate to mount on a single gang, double gang or 4" square back box.
Siemens Fire Safety notification devices are designed with the installer in mind. They are constructed with all of the electronics inside the housing and not in the box. This design helps eliminate possible ground faults from crowded electrical boxes.
The strobe construction consists of a Xenon flashtube with solid state circuitry for maximum reliability and efficiency. The full range of strobes have a rounded dome shape made of clear Polycarbonate.
Strobe synchronization requires the Dual Sync Control
Module or PAD-3.
Replaces Catalog Sheet Number 2543
The audible/visual notification appliances shall be
Siemens Fire Safety Series U-MH-MCS, U-MH-MCS-W or U-MHT-MCS, U-MHT-MCS-W Selectable Candela
Strobe - Mini-Horns, or approved equal. The audible appliances shall be Siemens Fire Safety Series
U-MH-1G, U-MH-1G-W, U-MH, U-MH-W, U-MHT-1G,
UMHT-1G-W, or U-MHT, U-MHT-W Mini-Horns, or approved equal. The Series U-MH-MCS, U-MH-MCS-W and U-MHT-MCS, U-MHT-MCS-W visual segment shall be the Adapter Selectable Candela Strobe and shall be listed to UL1971 (Standard for Safety Signaling Devices for the Hearing Impaired). The Series U-MH-MCS,
U-MH-MCS-W, U-MHT-MCS, U-MHT-MCS-W, U-MH-1G,
U-MH-1G-W, U-MH, U-MH-W, U-MHT-1G, U-MHT-1G-W, and U-MHT, U-MHT-W audibles shall be UL listed under
Standard 464 (Fire Protective Signaling). The appliances shall be listed for indoor applications and shall be ADA/
The strobe segment of the Series U-MH-MCS,
U-MH-MCS-W and U-MHT-MCS, U-MHT-MCS-W shall produce a flash rate of one (1) flash per second over the
Operating Voltage Range Limits. The strobe shall consist of a xenon flash tube enclosed in a rugged clear polycarbonate lens. The strobe shall be of a low current design, and shall provide a minimum of four (4) field selectable strobe intensity settings, 15/75, 30/75, 75, and 110candela. All settings shall be UL1971 listed for both wall and ceiling mount applications. The selector switch shall be tamper resistant. It shall not be necessary to remove the appliance from the mounting surface to select the strobe intensity. When strobe synchronization is required, the Strobe shall be compatible with the Siemens Fire
Safety 5406 Sync Module, or other source of
Siemens Fire Safety Sync Protocol, and shall not drift out of synchronization.
The Series U-MH-MCS, U-MH-MCS-W audible segment, and the Series U-MH-1G, U-MH-1G-W and U-MH,
U-MH-W audibles, shall provide a continuous or coded tone signal, depending upon the pattern of the voltage applied. In addition, the Series U-MHT-MCS, U-MHT-
MCS-W audible segment, and the Series U-MHT-1G,
U-MHT-1G-W and U-MHT, U-MHT-W audibles shall also provide a field selectable temporal tone.
The Series U-MH-MCS, U-MH-MCS-W, U-MHT-MCS,
U-MHT-MCS-W, U-MH, U-MH-W, and U-MHT,
U-MHT-W shall include a Universal Mounting Plate that shall allow mounting to single -gang, two-gang, and 4" square backboxes, as well as Siemens Fire
Safety FBX-S and FBX-F Surface Boxes.
The Series U-MH-1G, U-MH-1G-W and U-MHT-1G,
U-MHT-1G-W shall be designed specifically for mounting to a single-gang backbox.
NOTE: These notification appliances are UL listed and rated as “special application’’, which represents appliances which have been investigated to operate as described in the product’s installation instructions over the voltage range of
16-32 VDC or VFWR.
32°F to 120°F (0°C to 49°C) at 85% RH
Operating Voltage Range Limits
Horn: 16-32 Vdc or VFWR
Strobe: 16-32 Vdc or VFWR
Horn Current at 24VDC or FFWR
Typical dB @ 10 Feet
: Typical readings are frontal sound readings taken with a dB meter with signal mounted on wall.
U-MH-1G, U-MH-1G-W & U-MHT-1G, U-MHT-1G-W: mount to 1 gang box,
U-MH, U-MH-W, U-MH-MCS, U-MH-MCS-W, UMHT,
U-MHT-W & U-MHT-MCS, U-MHT-MCS-W: universal mounting plate for 1 gang, 2 gang or 4" square box
U-MH-1G, U-MH-1G-W & U-MHT-1G, U-MHT-1G-W: 5 oz. approx.
U-MH, U-MH-W & U-MHT, U-MHT-W: 8 oz. approx.
U-MH-MCS, U-MH-MCS-W & U-MHT-MCS, U-MHT-
MCS-W: 12 oz. approx.
Strobe Intensity Setting
Strobe Current Draw
U-MH & U-MHT Series Mini Horn Wall Mount
CU-MH & CU-MHT Series Mini Horn Wall Mount
U-MH & U-MHT Series Mini Horn/Strobe
CU-MH & CU-MHT Series Mini Horn/Strobe
Listed operating range is 16 to 32 Vdc/FWR 75.9 - 83.8 dB UL measurements are taken in free air at 360° around the device and averaged.
Typical readings are frontal sound readings taken with a dB meter with signal mounted on wall. Rated for indoor use at 32°F to 120°F, (0°C to
49°C) with 85% RH.
Siemens Building Technologies
8 Fernwood Road
Florham Park, NJ 07932
Tel: (973) 593-2600
FAX: (973) 593-6670
Printed in U.S.A.
2 Kenview Boulevard
Canada L6T 5E4
Tel: (905) 799-9937
FAX: (905) 799-9858
Supersedes sheet dated 6/04