Littelfuse AF0025 Arc-Flash Detection Relays

Littelfuse AF0025 Arc-Flash Detection Relays feature innovative arc-flash protection in a compact 46.23mm depth. The relays provide two sensor optical inputs, which reduce arc-fault damage by quickly employing a trip signal. The AF0025 antennas can be surface-mounted or DIN-rail mounted in tight spaces. Littelfuse AF0025 Arc-Flash Detection Relays include a solid-state redundant trip circuit and an internal fail-safe mechanism. The antennas are conformal coated against environmental elements, which is ideal for solar combiner boxes, inverters, industrial uninterruptible power supply (UPS), junction boxes, and OEM panel applications.

Features

Compact 46.23mm depth
Two sensor inputs
Flexible installation
Fixed light sensitivity

Internal fail-safe design
Redundant solid-state circuitry
Selectable fail-safe and non-fail-safe operation

Applications

Solar combiner boxes
Inverters
Industrial UPS

Junction boxes
OEM panels

Specifications

24V_DC input voltage
Form C, 240V_AC/30V_DC, 6A resistive trip and error output contacts
<5ms typical trip time

112.25mm x 127.5mm x 46.23mm dimensions
-40°C to +70°C operating temperature range
3klx fixed sensitivity
1kg weight

Dimensions

Chart - Littelfuse AF0025 Arc-Flash Detection Relays

Littelfuse AF0025 Arc-Flash Detection Relays

Features

Applications

Specifications

Dimensions

Application Circuit Diagram

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