Audible Devices
300SCW-1 SelecTone® Wall Mounted Command Unit
- Multi-voltage design operates on 24VDC, 120VAC and 240VAC
- Produces four prioritized tone signals and public address
- Remote microphone input
- Wall mount
- Type 1 enclosure
- UL Listed and CSA Certified

The Federal Signal Model 300SCW-1 SelecTone® Command Unit generates up to four tones or voice communications through a SelecTone system.
Four tones, auxiliary, test and cancel are controlled via an illuminated keypad. Voice transmission is activated by keying the optional hand held microphone.
The Model 300SCW-1 is UL Listed and CSA Certified.
Choose four plug-in tone modules, including the UTM Universal Tone Module or the TM33 Custom Tone Module.
Public address can be accessed from the optional local microphone or via the remote microphone input. Public address has the highest priority, followed by tones 1-4, remote microphone and audio.
"Test" plays tones or voice messages through the monitor speaker only. "Cancel" interrupts any tone.
External dry contacts can be wired into the command unit for automatic remote operation of the signal system.
The Model 300SCW-1 SelecTone Command Unit is the basis for a simple, versatile general signaling system for weather warning, start and dismissal, general alarm, evacuation and paging.
Federal Signal's SelecTone Model 300SCW-1 Command Unit allows up to four tones and public address capability to be prioritized and broadcast through a SelecTone system.
Special Considerations
- Specify up to four Tone Modules
- Specify accessories, see table below
Models
Part # | Description | Ship Weight | Net Weight | |
---|---|---|---|---|
300SCW-1 | SelecTone® Command Unit, wall mount | 15 lbs. | 13.4 lbs. | Add to Quote > |
Accessories
Part # | Description | Ship Weight | |
---|---|---|---|
MNC-1 | Noise-canceling microphone, hand held | 0.6 lbs. | Add to Quote > |
MSB-1 | Microphone, desktop | 2.05 lbs. | Add to Quote > |
Replacement Parts
Description | Part # | |
---|---|---|
Mother Board | K2001154E | Add to Quote > |
Switch Board | K2001147A | Add to Quote > |
Tone Card Connector | K2001164A | Add to Quote > |
Connector, 17 Position | K140A332A-17 | Add to Quote > |
Connector, 16 Position | K140A332A-16 | Add to Quote > |
Fuse, 250V, 1 Amp | K148A155A-01 | Add to Quote > |
Fuse, 250V, 1/2 Amp | K148A155A | Add to Quote > |
Agency
Listed By Underwriter's Laboratory (ULus) | |
---|---|
Commercial audio and radio equipment, systems and accessories | AZJX_E61713.pdf |
Certified by CSA International | |
---|---|
Signal appliances, systems | 4812_05_LR5835_50.pdf |
Specs
Voltage | 24VDC (Allows emergency power back-up using models PS250, PS600 or PS1000) 120VAC 50/60Hz 240VAC 50/60Hz |
---|---|
Mount | Wall |
Operating Current | 0.76 Amps at 24VDC 0.20 Amps at 120VAC 0.10 Amps at 240VAC |
Standby Current | 0.09 Amps at 24VDC 0.03 Amps at 120VAC 0.02 Amps at 240VAC |
Tone Output - Unbalanced Signal Line | 10Vrms (25 Ohm Maximum) |
Tone Output - Balanced Signal Line | 25Vrms (40 Ohm Maximum/15-watt) |
Signal To Noise Ratio | (<% 1.5 THD) Chip Input 67dBa |
Signal Frequency Response | 250Hz to 4.5KHz (typical) |
Enclosure Rating | Type 1 |
Height | 11.25 IN |
Width | 16.23 IN |
Depth | 4.06 IN |