25SU3-2000 Fireye Amplifier

Part number 25SU3-2000 from Fireye, listed in PLC CPUs & Systems. KKM Solutions quotes this part with pricing and availability confirmed per order.

Overview The Fireye 25SU3-2000 is a high-performance, 19-inch rack-mounted flame safeguard amplifier designed to detect the presence or absence of flame in single or multi-burner industrial environments. This CE-approved module operates on 24 VAC or 24 VDC and supports remote communication for integration with PLCs and SCADA systems. Features Keypad Entry System with password protection to prevent unauthorized parameter changes. Eight-character alpha-numeric LED display and front panel status indicators for real-time diagnostics. Dual Scanner Support capable of analyzing pulse inputs from two scanners (A and B) independently or in combination. Dual Logic Programs (Scanner Option 1 and 2) allowing users to select different operating parameters for different scanner configurations. Adjustable Thresholds and Timing including independent flame relay pull-in/drop-out thresholds and Flame Failure Response Time (FFRT) from 1 to 6 seconds. Remote Communication via Allen-Bradley DF1 or MODBUS RTU protocols for PLC integration. Scalable Analog Output (4-20mA) specifically for measuring and monitoring the flame signal. Specifications Input Voltage: 24 VAC (+10%, -15%) 50/60 Hz or 24 VDC (+/-10%). Power Consumption: 5 VA with one scanner; 7.5 VA with two scanners. Outputs: One DPDT flame relay (fused at 1.5A), one SPDT marginal alarm relay, and one 4-20mA analog output. Dynamic Range: 1900 pulses per second. Temperature Range: Operating: -4F to +140F (-20C to +60C); Storage: -4F to +176F (-20C to +80C). Dimensions: 5.06″ H x 7.0″ D x 1.98″ W (10HP front panel width). Agency Approvals: CE Approved, FM Approved, and CSA Approved. Applications The 25SU3-2000 is primarily used in industrial combustion and burner management systems. It is ideal for multi-burner process heating installations where precise flame discrimination is required to distinguish between target flames and background radiation. It is commonly integrated into Fireye rack-based systems (full, half, or surface mount) to provide centralized flame safeguard control for large-scale boilers and furnaces.