Audible Devices
300TAR SelecTone® Tone Activated Relay
- Available in 24VAC/VDC and 120/240VAC
- Detects tone signals and public address
- Eliminates the need for additional control wires
- Type 4X enclosure
- UL Listed

The Federal Signal Model 300TAR is activated by swept frequency tone signals from the SelecTone® Command Center. A relay switches power in order to control the operation of selected devices. The 300TAR can be used to activate such devices as emergency lights, lock and unlock doors and exhaust fans. Additional applications include the activation of other circuits such as automatic dialers, digital message centers or PLC inputs.
The tone activated relay is designed to detect emergency dedicated signals emitted by a SelecTone Command Center. Through a twin set of Form C contacts, each rated at 8 Amperes, the 300TAR can switch power to activate up to two devices, eliminating the need for dedicated control lines.
The 300TAR has two modes of operation. In one mode, the unit can be adjusted for specific audio frequencies. The other mode does not discriminate and activates upon any audio signal, including tones or voice.
The 300TAR accepts all connector cards (AM25CK, and AM70CK), allowing its use with today's most popular audio line voltages.
The 300TAR is encased in a sturdy, die cast aluminum, corrosion-resistant housing. The unit is UL Listed.
Special Considerations
- Specify Connector Kit for use in systems (sold separately)
Models
Part # | Description | Ship Weight | Net Weight | |
---|---|---|---|---|
300TAR-024 | SelecTone® tone activated relay, 24VDC | 3.15 lbs. | 2.75 lbs. | Add to Quote > |
300TAR-120-240 | SelecTone® tone activated relay, 120/240VAC | 3.15 lbs. | 2.75 lbs. | Add to Quote > |
Accessories
Part # | Description | Ship Weight | |
---|---|---|---|
NOT APPLICABLE |
Replacement Parts
Description | Part # | |
---|---|---|
Double Pole Relay | K131207A | Add to Quote > |
PC Board Assembly, 24VDC | K2001306B-01 | Add to Quote > |
PC Board Assembly, 120/240VAC | K2001306B | Add to Quote > |
Specs
Voltage | 24VAC 50/60Hz 24VDC 120VAC 50/60Hz 240VAC 50/60Hz |
---|---|
Mount | Surface |
Operating Current | 56mA at 24VAC, 50/60Hz 168/180mA at 24VDC 64/38mA at 120VAC 50/60Hz 32/19mA at 240VAC 50/60Hz |
Operating Temperature Min. | -31 F |
Operating Temperature Max. | 150 F |
Standby Current | 29mA at 24VAC, 50/60Hz 92/93mA at 24VDC 61/32mA at 120VAC 50/60Hz 31/17mA at 240VAC 50/60Hz |
Input Signal | 1Vrms |
Input Signal Frequency | Tone: 470Hz to 1300Hz +/- 15% PA: 60Hz to 5000Hz +/- 15% |
Enclosure Rating | Type 4X |
Height | 5.63 IN |
Width | 4.94 IN |
Depth | 3.38 IN |