PANTRONISG-A124Relay output

ISG-A124

The ISG-A124 uses the same configurable sensing platform as the ISG-A123 but provides a change-over relay output. It combines automatic transmit power adjustment, selectable light / dark mode, selectable transmit frequency, 4-step transmit level selection, and a test input for system checks.

Datasheet PDF Operating Guide PDF

Up to 50 m range3.7 / 4.1 kHzTest input4-level transmit controlLight / DarkRelay change-over

Key Features

Automatic transmit power adjustment for harsh environments.
4-step basic transmit level selection.
Light / dark switching selection.
Selectable transmit frequency at 3.7 kHz or 4.1 kHz.
Change-over relay output plus separate PNP alarm output.
Test input for system check and validation.

Best Fit Applications

Relay-interface systems that need broad setup flexibility.
Long-range through-beam detection in contamination-heavy industrial environments.
Installations where frequency selection helps avoid interference.
Machine retrofits using DIN-plug socket infrastructure.

This model was created from Pantron catalog pages 26-29 within the ISG-series automatic amplifier family. It shares the same through-beam range table and enclosure format as its paired companion model, ISG-A123.

Technical Specifications

Channels	1
Operating voltage	See order table
Operating basis	Modulated infrared light
Transmit frequency	3.7 kHz / 4.1 kHz
Transmit power	Automatic
Basic transmit level	low1 / low2 / high1 / high2
Switching behaviour	Light / Dark
Switching delay	-
Multiplex speed	-
Primary / Secondary operation	-
Teach function	-

Switching output	Relay, change over
Output rating	5 A / 230 V AC (24 V DC)
Reaction time	25 ms / 52 ms (low / high)
Alarm output	PNP
Alarm output rating ...AC	5 mA / 24 V DC
Alarm output rating ...DC	100 mA / 24 V DC
Test input	0 ... 30 V DC
Analog output	-
COM interface	-
Housing material	Plastic
Protection class	IP40 (EN 60529)
Connection	11-pole DIN-plug
Operating temperature	-25 C ... 50 C
Dimensions	40 x 76.5 x 78.5 mm

Purchase Order Table

Operating voltage	Order code
230 V AC / +-10% / 4.1 VA	ISG-A124/230VAC
115 V AC / +-10% / 4.1 VA	ISG-A124/115VAC
24 V AC / +-10% / 4.1 VA	ISG-A124/24VAC
24 V DC / +-20% / 1.9 W	ISG-A124/24VDC

Accessories shown on the catalog page: PanBox 1x1 protective enclosure, ISO1 11-pole DIN-socket, and RTC 11 retaining clip.

Amplifier Mode Configuration

Profile	1	2	3	4
high2	ON	ON	dark / ON	4.1 kHz / ON
high1	ON	OFF	dark / ON	frequency selectable
low2	OFF	ON	light / OFF	frequency selectable
low1	OFF	OFF	light / OFF	3.7 kHz / OFF

The transistor-output companion product is ISG-A123. Both variants share the same environmental ratings, connection style, and range table.

Compatible Sensor Pairs and Maximum Through-Beam Range

Transmitter family	With receiver IRL-...	With receiver IR-...	Typical use note
IT-..., ITL-...	7 m	15 m	Compact standard option
IT-...HP, ITH-...	10 m	25 m	Higher power range extension
ITA-...	20 m	50 m	Longest stated range for this family

Maximum range values are taken directly from the corresponding ISG-series catalog pages for these automatic one-channel amplifiers.