Feeder-type Arc Flash Protection Device (DIN Rail Mount) 01

Feeder-type Arc Flash Protection Device (DIN Rail Mount) 02

Feeder-type Arc Flash Protection Device (DIN Rail Mount) 03

Feeder-type Arc Flash Protection Device (DIN Rail Mount)

The core component of the Arc Flash Protection Relay utilizes an arc sensor featuring Sanda’s proprietary intellectual property. Equipped with a highly sensitive triggering circuit, it boasts rapid response capabilities, enabling it to capture fast-flickering arc pulses, electrical sparks, or transient arc discharge signals. The device features three arc input channels and two relay outputs (one normally open and one normally closed); these relays can be integrated into the circuit breakers of switchgear cabinets to trigger an action approximately 5 milliseconds after an arc flash occurs, thereby facilitating the rapid isolation of faults and the activation of alarms. It is ideally suited for the online monitoring and protection of busbars, switches, cable joints, and similar components within high-voltage, medium-voltage, and low-voltage switchgear cabinets, capacitor banks, wind turbines, and other industrial settings.

Features

The sensor features unique arc detection capabilities, enabling it to reliably distinguish between electric arc light and interfering visible light sources.

The sensor utilizes highly reliable POF (Plastic Optical Fiber) cabling, which offers exceptional resistance to bending and tension and is completely immune to electromagnetic interference, making it suitable for operation in strong electromagnetic environments.

It possesses robust immunity to visible light interference and offers a wide range of applicability, making it particularly well-suited for operation in harsh environments.

The probe and fiber optic cable are connected via a POF connector, allowing for the installation of the probe and the routing of the fiber to be performed as separate, sequential steps.

It features a rapid response speed, with a typical total response time of 5 ms from the onset of the arc event to the activation of the relay.

It offers a wide detection coverage area, with a maximum detection angle of 240 degrees.

Technical Parameters

Model		OT-HGJ-02
Total Response Time		5 ms (Typical)
Sensitivity (Activation Threshold)		4 mW/cm² (Typical)
Response Spectrum		300 nm – 700 nm (Visible Light Probe)
		250 nm – 420 nm (UV Light Probe)
Fiber Optic Interface		ST
Detection Angle		Max. 240°
Power Consumption		2 W
Power Supply	Rated Voltage	220 V AC & 24 V DC (Optional)
	Voltage Range	AC: 100–240 V
		DC: 9–36 V (Optional)
Trip	Maximum Voltage	250 V AC; 30 V DC (Optional)
	Continuous Current-Carrying Capacity	6 A
	Action Time	4 ms (Typical)