EGE Elektronik Sensor Air Flow Sensors Productseries LNZ 450 WR2-K

Description

The EGE Elektronik LNZ 450 WR2-K is the authoritative choice for engineering projects that utilize 24V infrastructure but require the switching versatility of a relay. The “WR2” designation signifies its ability to accept 24V Alternating Current (AC) or Direct Current (DC), providing maximum flexibility for different control cabinet power standards. The Relay output offers a potential-free contact, allowing you to switch independent circuits (up to 250V AC) without needing 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	LNZ 450 WR2-K
Product ID	P11103
Medium	air, non-explosive gas
Detection range air	0.5 … 30 m/s
Process connection	G1/2
Sensor length L	48 mm
Output	switching output
Output function	relay NO
Supply voltage	230 V AC +/- 15 %
Current consumption max.	60 mA
Switching voltage max.	250 V AC / 60 V DC
Switching current max.	400 mA (20 °C)
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	30 bar
Material sensor touched by medium	stainless steel AISI 303
Material housing	PBT
Protection [EN 60529]	IP 67
Electrical connection	2 m PVC-cable 5×0.5 mm²
Accessories (in scope of delivery)	2 x gasket G1/2 AFM 34, screwdriver

Features

Universal Low-Voltage Power (WR2): Operates on 24V AC or 24V DC, making it compatible with almost any modern industrial control standard.
Potential-Free Relay Output: High-capacity switching contact suitable for alarms, fans, or PLC inputs.
Integrated Fixed Cable (-K): 2-meter factory-sealed cable ensures a high-integrity connection and an IP 67 protection rating.
Calorimetric Sensing Technology: Solid-state design with no mechanical wear, ideal for high-vibration and dusty environments.

Applications

Control Cabinet Ventilation: Ensuring that 24V cooling fans are actually moving air to prevent component overheating.
HVAC Integration: Bridging 24V thermostats or building management systems (BMS) with high-voltage alarm circuits.
Process Air Monitoring: Verifying airflow in industrial drying, curing, or cooling processes.