Littelfuse AF0500-00 Protection Relay Three Form C One Form A Contacts 100/240 VAC

The AF0500 Series from Littelfuse offers a robust solution for applications requiring reliable relay functionality. With three Form C contacts and one Form A contact, this device ensures flexible operation for a variety of needs, accommodating both fail-safe and non-fail-safe environments. Designed with versatility in mind, it can seamlessly switch between 100 and 240 VAC supply voltage, making it suitable for global use. Additionally, the series meets essential safety standards including UL, cULus, CE, and C-tick, reinforcing its reliability in industrial settings. This combination of features makes the AF0500 Series an essential component for controlling IGBT switches and providing dependable performance in critical applications.

• UL, cULus, CE, and C-tick approvals for compliance and safety assurance
• Four light sensor inputs for comprehensive arc-flash detection
• Supports both fail-safe and non-fail-safe operating modes
• Two high-speed IGBT switch outputs for reliable trip signaling
• Three Form C and one Form A contacts for versatile switching
• Wide supply voltage range of 100-240 VAC for global compatibility
• Continuous sensor and input health monitoring for fail-safe operation
• Ethernet interface with Modbus TCP for network communication and integration
• Wide operating temperature range from -40°C to +70°C for harsh environments
• Mountable on surface or DIN rail with optional brackets for flexible installation

• Supply Voltage: 100/240 Vac
• Voltage Rating: 24 to 300 Vac, 24 to 300 Vdc
• Current Rating: 20 A for 2 s, 10 A for 5 s
• Supplemental Rating Make/Carry: 30 A for 0.2 s
• Relay Contacts: Three Form C (N.O./N.C.); One Form A (N.O.)
• Output Options: 2 IGBT switches
• Relay Contact Operating Mode: Fail-safe, Non Fail-safe
• Dimensions: 5.1 in. H x 7.9 in. W x 2.1 in. D
• Mounting: Surface, DIN (optional brackets)
• Sensor Inputs: 4 light sensor inputs
• Communication: Ethernet, Modbus TCP
• Operating Temperature: -40°C to +70°C
• Approvals: UL, cULus, CE, C-tick

Application Notes

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