Siemens HMS-S


Addressable Manual Fire Alarm Box, Single Action

Availability: Estimated 6 - 8 Business Days

  • Factory New
Brand: Siemens Part #: 21710 Categories: , , , Manufacturer Part #: HMS-SSecondary Part #: 500-033200


The Siemens intelligent manual fire-alarm boxes (Models HMS-S | HMS-SZ and HMS-D | HMS-DZ) provide the most advanced method of address programming and supervision.

Each Model HMS-Series manual box achieves the state of an ‘intelligent-initiating device’ by incorporating custom microcomputer-chip technology with sophisticated bi-directional communication capabilities with the panel, which include Siemens Modular, as well as Siemens 50-point, 252-point and 504-point addressable FACPs.

The Model HMS-Series manual fire-alarm boxes are also included in US Coast Guard (USCG) approval for use in marine and other harsh environments, when used with the Siemens 252-point and 504-point USCG approved addressable system.


Weight 2.00 lbs
Dimensions 3.00 × 5.00 × 6.00 in









  • Durable metal design
  • Shock and vibration resistant
  • Single-action (Model HMS-S | -SZ) and double-action (Model HMS-D | -DZ) stations
  • Pull-down lever is down, until manually reset
    • Reset with Allen Key
    • No break rods necessary
  • Custom microcomputer-chip technology
  • Polarity insensitive via SureWire technology
  • Dynamic supervision to the fire-alarm control panel (FACP)
    • Device Programmer Unit (Model DPU) programs and verifies address and tests functionality of each device
  • Electronic-address programming (EEPROM) is easier, as well as more efficient, dependable
  • Surface or semi-flush installation
  • Two-wire
  • Americans with Disabilities Act (ADA) Compliant
  • UL Listed;
  • USCG (161.002/60/0), FM (#3015946 & 3052621), CSFM (#7150-0067:0036) and NYC Fire Dept. (#202-12E, Vol. 1) Approved


HMS-Series: Models HMS-D | HMS-S | HMS-SZ
Siemens – Data Sheet
Single/Dual Action Manual Pull Station; Models HMS-S / HMS-D
Siemens – Installation Instructions