EGE Elektronik Sensor Amplifiers for Ex Productseries SZAb 400 EX-GR

Description

The EGE Elektronik SZAb 400 EX-GR is the authoritative choice for integrating hazardous-area sensors into low-voltage DC control systems. In volatile environments where flammable gases or dust are present, sensors require an external safety link to prevent ignition. The SZAb 400 EX-GR serves as this link, employing Intrinsic Safety to limit the electrical energy entering the hazardous zone. The “GR” designation identifies this unit as the 24V DC powered version of the SZAb 400 series. This makes it ideal for modern facilities that prioritize DC power for increased safety and compatibility with standardized PLC power supplies. The unit is installed in a safe area (non-hazardous) on a standard 35mm DIN-rail, where it processes signals from EGE flow or level probes situated in the field.

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	SZAb 400 EX-GR
Product ID	P11398
Output	switching output
Output function	relay / change-over
Turn off delay	0…25 s
Supply voltage	24 V DC +/- 15 %
Switching voltage max.	250 V AC / 60 V DC / 24 V DC
Switching current max.	4 A AC / 0,8 A DC / 4 A DC
Switching Load	cos φ > 0,7 ; L/R <200 ms
Reverse polarity protection	✓
ATEX Certificate	EPS 19 ATEX 1 009
IECEx Certificate	IECEx EPS 19.0001
ATEX marking gas	Ex II (1) G [Ex ia Ga] IIC
ATEX Marking dust	Ex II (1) D [Ex ia Da] IIIC
IECEx marking gas	[Ex ia Ga] IIC
IECEx marking dust	[Ex ia Da] IIIC
Maximum values	Uo = 13.65 V / Io = 200 mA / Po = 683 mW; IIC: Co = 0.35 µF / Lo = 1.1 mH; IIB: Co = 1.8 µF / Lo = 6.2 mH; IIA: Co = 5.7 µF / Lo = 11.0 mH
Ambient temperature	-20 … 60 °C
Protection [EN 60529] terminal	IP 20
Protection [EN 60529] housing	IP 20
Electrical connection	terminal screws
Accessories (in scope of delivery)	screwdriver

Features

Potential-Free Relay Output: Features a robust change-over (SPDT) contact for universal signaling to PLCs or safety systems.
Built-in Line Monitoring: Automatically detects and reports sensor cable interruptions or short circuits.
Adjustable Switch-off Delay: Prevents “relay chatter” by allowing a 0…25 second delay before the output changes state.

Applications

Chemical Batching: Safe flow monitoring of alcohols, solvents, and fuels in 24V DC powered skids.
Pharmaceutical Production: Level control for tanks containing explosive vapors in Zone 0 environments.
Hydrogen Refueling: Monitoring gas flow and pressure safety in specialized H2 delivery systems.