Protection Relays and Controls Arc-Flash Monitoring AF0500 SERIES Arc-Flash Relay Description The AF0500 is a microprocessor-based arc-flash relay that limits arc-fault damage by detecting the light from an arc flash and rapidly tripping the feeder breaker. The unit is well suited for switchgear, transformer and power converter applications. Sensors, inputs, and connections are health monitored to ensure fail-safe operation. A secondary solid-state trip circuit provides a redundant trip path. A USB port is used for configuration and access to event logs. AF0500 includes an Ethernet interface and supports Modbus TCP communication. Zone tripping, upstream breaker tripping and tie breaker tripping applications can be easily configured. A number of control inputs allows interconnection of multiple AF0500 units to form a system. Features & Benefits FEATURES BENEFITS Optical Sensors 4 arc sensor inputs Supports both point and fiber sensors The AF0500 accepts both PGA-LS10 point sensors and PGA-LS20/PGA-LS30 fiber-optical sensors. Thus any Arc-Flash trip time <1ms Limits arc-afl sh damage and risk of injury combination of fiber or point sensors is supported. Supports applications such as upstream 2 IGBT high speed trip outputs breaker tripping or tie breaker tripping For fast fault location, front-panel and sensor LEDs indicate sensor health and which sensor detected an arc fault. 100-240 Vac, 24-48 Vdc, or 110-250 Universal Power Supply Vdc supply Sensor Placement Continuous monitoring of optical sensors Fail-safe system The AF0500 Arc-Flash Relay and sensors are easily installed and inputs ensures protection in retrofit projects and new switchgear with little or no LED indication Trip and sensor status indicated both on re-configuration. Simple applications work straight out of the (on unit and each sensor) relay and sensors box with no need of PC configuration. More complex systems Multiple AF0500 units can be with multiple power sources are configured using the relays Discrete wire networking interconnected to form a system built-in USB interface software. Data logging and configuration software Generally, it is recommended to mount 1 or 2 sensors per USB interface uses a USB interface with no drivers or cubicle to cover all horizontal and vertical bus bars, breaker software installation compartments, drawers, and anywhere that there is a On-board event recorder for system risk for an arc fault. Threading a fiber-optic sensor through Data logging diagnostics (2048 log lines) the cabinets and in areas where point-sensor coverage is uncertain results in complete coverage and an added level Ethernet interface Modbus TCP communication of redundancy. Even if policy is to only work on de-energized systems, all maintenance areas should be monitored to prevent potential damage and additional cost. Ordering Information ORDERING NUMBER DESCRIPTION AF0500-00 Arc-Flash Relay AF0500-00-CC Arc-Flash Relay, Conformally Coated ACCESSORIES REQUIREMENT PGA-LS10 Required* PGA-LS20, PGA-LS30 Required* PGA-1100 Optional Arc Flash Fiber-Optic Sensor Point Sensors 2016 Littelfuse Protection Relays & Controls Rev: 1-C-050516 Littelfuse.com/ArcFlash Based on Manual 0-D-040816Protection Relays and Controls Arc-Flash Monitoring AF0500 SERIES Tie Breaker Tripping Applications In case of an arc in one section of the switchboard, the AF0500 can trip both the incoming feeder and the tie breaker Zone Tripping simultaneously. Thus the affected part of the switchboard is AF0500 can trip 2 separate zones. Sensors can be assigned isolated from the non-affected part. to the zones individually through PC configuration. Incoming Incoming Feeder Feeder Zone 1 Zone 2 Sensor Sensor Bus Tie Sensor Sensor Upstream Breaker Tripping In case of failure of the local circuit breaker to open, another trip command is sent after a short delay to an upstream breaker to clear the fault. Incoming Feeder Upstream Breaker Accessories PGA-LS10 Point Sensor Line-of-sight light sensor detects an arc as small Local Breaker as 3 kA within a 2-m half-sphere. Includes Sensor health and trip indication. PGA-LS20/PGA-LS30 Fiber-Optic Sensor 360 light sensor to run along bus bars. Sensor health and trip indication. PGA-1100 Diode Logic Unit This module allows multiple arc-flash relays to trip a common breaker, for example a tie-breaker. Specifications Power Supply Communication Ethernet, 2 ports with internal Ethernet switch, Universal 100 to 240 Vac (+10%, -15%) 50/60 Hz, 20 VA, Modbus TCP 110 to 250 Vdc (+10%, -20%) 8 W Dimensions H 130 mm (5.1) W 200 mm (7.9) D 54 mm (2.1) Low Voltage 24 to 48 Vdc (+10%, -20%), 4 W Shipping Weight 0.9 kg (2 lb) Operating Temp. 40C to +70C (40F to 158F) Sensor Inputs 4 light sensor inputs for PGA-LS10, PGA-LS20 Approvals UL Listed (UL508), CE, RCM, FCC, CSA and PGA-LS30 sensors Warranty 5 years Trip Outputs 2 IGBT switches Mounting Surface, DIN (with optional D0050 adapter clips) UL Rating 120/240 Vac, 1800 VA, 0.75 A maximum continuous, 125/250 Vdc, 138 VA, 0.75 A maximum continuous Supplemental Rating Make/Carry 30 A for 0.2s Voltage Rating 24 to 300 Vac, 24 to 300 Vdc Current Rating 20 A for 2 s, 10 A for 5 s 2016 Littelfuse Protection Relays & Controls Rev: 1-C-050516 Littelfuse.com/ArcFlash Based on Manual 0-D-040816 Sensor Sensor Sensor Sensor Sensor Sensor Sensor Sensor Sensor Sensor Sensor Sensor