PANTRONISM-1530 / ISM-1535DIN Rail

ISM-153x

1-channel amplifier series with selectable light / dark mode and adjustable switching delay. The ISM-153x family builds on the configurable ISM platform with selectable light / dark switching, two basic transmit levels, and an adjustable switching-on / switching-off delay. Both models are designed for DIN-rail installation in harsh industrial environments; the ISM-1530 uses a floating relay output and the ISM-1535 uses a floating semiconductor relay output.

Datasheet PDF Operating Guide PDF

Up to 70 m range24 VAC / VDC0 ... 10 s delayHigh / low transmit levelLight / dark selectable

Key Features

Detection range up to 70 m, depending on selected transmitter / receiver pair.
Sensitivity adjustable with front potentiometer.
Basic transmit level switchable between low and high.
Switching behaviour selectable between light and dark.
Adjustable switching-on and switching-off delay from 0 to 10 s.
Floating distance switching output; relay on ISM-1530 and semiconductor relay on ISM-1535.

Best Fit Applications

Industrial sensing tasks that benefit from delay filtering to prevent nuisance switching.
Long-range optical detection in dirty, wet, or contamination-heavy environments.
Material handling and access control applications with configurable output behavior.
Retrofits where relay or semiconductor relay output choice is required in the same device family.

This page consolidates the grouped models shown together so the shared electrical and optical platform can be reviewed in one place.

Technical Specifications

Models	ISM-1530 / ISM-1535
Operating voltage	24 V AC ±10% / 2.4 VA or 24 V DC ±10% / 2.4 W
Operating basis	Modulated infrared light
Transmit frequency	4.0 kHz
Transmit power	Manual
Basic transmit level	Low / High
Switching behaviour	Light / Dark
Switching delay	0 ... 10 s

ISM-1530 output	Relay, normally open
ISM-1530 rating	5 A / 230 V AC (24 V DC)
ISM-1535 output	Semiconductor relay, normally open
ISM-1535 rating	100 mA / 60 V AC (DC)
Reaction time	36 ms
Housing	Polyamide, light grey
Protection class	IP20 (EN 60529)
Connection / wire size	Plug with screw terminals / 0.2 ... 2.5 mm²
Operating temperature	-25 °C ... 50 °C
Dimensions	22.5 x 94 x 84 mm

Compatible Sensor Pairs and Maximum Through-Beam Range

Transmitter family	With receiver IRL-...	With receiver IR-...	Typical use note
IT-..., ITL-...	20 m	25 m	Standard long-range pairings
IT-...HP, ITH-...	30 m	35 m	Extended range transmitter options
ITA-...	50 m	70 m	Longest published range

Maximum range values are listed for through-beam operation.

Ordering and Accessories

Switching output	Order code
Relay	ISM-1530/24V
Semiconductor relay	ISM-1535/24V

Accessory	Order code
Protective enclosure	PanBox 1x1
Power supply PSU-1000	PSU-1000S/95...265VAC

Configuration and Wiring Notes

The catalog page shows the amplifier mode factory setting in white.
Selector positions on the printed page identify high / low transmit level and light / dark switching behavior.
The adjustable delay is the distinguishing functional upgrade of the ISM-153x series.

For full connection diagrams, mechanical drawings, and companion transmitter / receiver options, refer to the Pantron catalog PDF linked above.