EGE Elektronik Sensor Air Flow Sensors Productseries LN 450 WR1-K

Description

The EGE Elektronik LN 450 WR1-K is the authoritative choice for facilities that require reliable airflow monitoring but lack a dedicated 24V DC infrastructure. The “WR1” designation indicates a wide-range alternating current (AC) capability, allowing the sensor to operate on standard industrial mains—typically 115V AC or 230V AC. The integrated Relay output provides a potential-free contact, which is ideal for triggering AC-powered alarms, sirens, or motor starters without the need for additional signal converters.

Brand

EGE-Elektronik

EGE-Elektronik Spezial-Sensoren GmbH has been developing and manufacturing special purpose sensors for automation applications since 1976. The company serves leading international producers from a wide range of industries. Its product portfolio includes flow controllers, infrared, opto and ultrasonic sensors, capacitive proximity switches, light barriers and inductive proximity switches. EGE also provides sensors for highly sensitive applications, e. g. hazardous areas. The development department`s highly qualified staff cooperates closely with all customers, ensuring continuous product updates and enhancement.

EGE has been a pioneer in the field of flow controller and an innovator and decisive participant in the development of today's globally utilized thermal flow controllers. The in-house EMC and test laboratories ensure that all inspections and tests required for permits and conformity certificates are carried out quickly and reliably. Product quality is guaranteed with a continuously monitored quality management system in accordance with EN ISO 9001:2000.

Specifications

TYPE	LN 450 WR1-K
Product ID	P11106
Medium	air, non-explosive gas
Detection range air	0.5 … 30 m/s
Process connection	G1
Output	switching output
Output function	relay / change-over
Supply voltage	115 V AC +/- 15 %
Current consumption max.	30 mA
Switching voltage max.	250 V AC / 60 V DC
Switching current max.	4 A AC / 4 A DC
Switching power max.	1000 VA / 60 W
Ambient temperature	-20 … 70 °C
Medium temperature	-20 … 80 °C
Temperature gradient gaseous media	20 K/min
Start-up time	10 … 90 s
Reaction time	2 … 30 s
Compressive strength	3 bar
Material sensor touched by medium	stainless steel AISI 303, POM
Material housing	PBT
Protection [EN 60529]	IP 67
Electrical connection	2 m PVC-cable 5×0.5 mm²
Accessories	thread sleeve A502 (Z01034), thread sleeve A503 (Z01035), thread sleeve A501 Z01033
Accessories (in scope of delivery)	screwdriver

Features

Wide-Range AC Supply (WR1): Compatible with 115V AC and 230V AC industrial power standards.
Potential-Free Relay Output: Versatile switching contact capable of handling both AC and DC loads.
Integrated Fixed Cable (-K): 2-meter factory-sealed cable for maximum protection against moisture and dust (IP 67).

Applications

Exhaust Fan Monitoring: Ensuring extraction units in labs or small workshops are moving air while using the fan’s own AC power source.
HVAC Alarms: Directly triggering AC-powered alarm beacons if airflow in a ventilation shaft drops below the safety threshold.
Industrial Oven Ventilation: Verifying air circulation in heating processes to prevent overheating and product damage.