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TL-8904B page 1 of 2

TL7 and SAH Series

High Visibility Flashing Red 
Alarm Light or Audible Alarm

12 VDC or 24 VDC 

Panel Mount

All Electronic

SAH

TL7

Description

The Model TL7 is a panel mounted flashing

alarm light and audible alarm driver. The TL7

helps protect the Murphy Swichgage contacts

from the very high inrush current of the lamp.

It is available in 12 or 24 VDC for negative

ground systems. The SAH Mini-Siren pro-

vides an audible alarm when fault conditions

are detected by a Swichgage instrument. It

can be panel mounted and operates on 6–28

VDC.

Application

The TL7 Flasher/Light is used as a warning

device on various types of industrial and

mobile equipment. The Mini-Siren will give

an audible warning when the TL7 operates, or

it can be wired directly to the Swichgage con-

tacts for audible only alarm.

Features: TL7

Red polycarbonate lens

12 VDC or 24 VDC negative ground 

(specify voltage)

Tin plated male push-on type terminals

SAH terminal designed to drive piezo elec-

tric audible alarm rated 20 mA @ 28 VDC
such as Murphy SAH Series Mini-Siren

Specifications: TL7

Power Requirements

Voltage: 

12 or 24 VDC, negative 

ground (specify voltage).

Current:

-

Sensor switch < 60 mA

-

12 VDC, 360 mA with lamp on

-

24 VDC, 200 mA with lamp on

12 or 24VDC, 5 mA standby, lamp off

Outputs (see replacement lamps)

Lamp output: 

120 mA @ 14.4 VDC

SAH terminal: 

20 mA @ 28 VDC resistive

Enclosure

Red polycarbonate lens with aluminum

retaining nut.

Temperature Range

-40°F to 165°F (-40°C to 74°C).

Terminal Connections

Four tin plated 1/32 x 1/4 inch (0.8 x 6 mm) 

male push-on type terminal.

Mounting Hole: 

1-1⁄8 in. (29 mm) diameter.

Maximum Panel Thickness: 

1/4 in. (6 mm).

Specifications: SAH 

Type: 

PIEZO electric transducer.

Operating Voltage: 

6–28 VDC.

Output Level: 

at 28 VDC 1 meter, 90± 5 dB.

Current Drain: 

at 28 VDC, 20 mA MAX.

Mounting Hole: 

1-1/8 in. (29 mm) diameter.

Maximum Panel Thickness: 

1/8 in. (3 mm).

TL-8904B

Revised 08-06

Catalog Section 30

(00-02-0128)

Selectronic

® 

Flasher Alarm Light and

Mini-Siren

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