Kromschroeder 88610365 BCU480-5/3/1LW3GBB1/1 burner control unit

Kromschroder 88610365 BCU480-5/3/1LW3GBB1/1 is an advanced automatic gas firing device designed for the control, ignition, and monitoring of gas burners, suitable for both intermittent and continuous operation. Its fully electronic design allows it to respond swiftly to varying process demands, making it ideal for applications requiring frequent cycling. Kromschroeder 88610365 BCU480-5/3/1LW3GBB1/1 gas burner control box is versatile enough to be used with industrial burners of any capacity, ignited by pilot burners. It supports both modulating and stage-controlled operation of pilot and main burners. Kromschroder 88610365 BCU480-5/3/1LW3GBB1/1 control unit independently monitors the pilot and main burners, allowing the pilot burner to either burn continuously or be switched off as needed. The BCU is typically installed in close proximity to the burner it monitors. In industrial furnace applications, Krom schroder 88610365 BCU480-5/3/1LW3GBB1/1 gas burner control unit offloads specific burner-related tasks from the central furnace control system. For example, it ensures that the burner ignites safely under all conditions during restarts. The air valve control feature aids in furnace cooling, purging, and capacity regulation. Kromschroeder BCU480-5/3/1LW3GBB1/1 88610365 automatic gas firing device technical data For grounded and ungrounded mains Inherent consumption: approx. 9 VA plus inherent consumption of the integrated ignition transformer [50/60 Hz] Signal and control line: max. 2.5 mm2 (AWG 14) Cable for burner ground/PE wire: 4 mm2 (AWG 12) Cable gland: 5 cable glands with multiple seal inserts for 2 cable diameters of up to 7 mm It is supplied for two cable glands with one seal insert each for cable diameters between 7 and 12 mm Flame control with UV sensor or ionization sensor Flame signal for ionization control: 1 – 28 μA, UV control: 1 – 35 μA For intermittent or continuous operation Maximum length of ignition cable with integrated electronic ignition: 5 m Maximum length of ionization/UV cable: 50 m Operation and fault signaling contacts: Signaling contact for mains voltage, max. 2 A, 253 V, not internally fused Number of operating cycles: Relay outputs: 250000 pursuant to EN 298, Mains switch: 1000, Reset/Information button: 1000 Ambient temperature: -20 to +60°C (-4 to +140°F), climate: no condensation permitted Enclosure: IP 54 pursuant to IEC 529 Weight: 5 kg Version for pilot and main burners 1st safety time on start-up (burner/pilot burner) tSA1: 5 s 2nd safety time on start-up (main burner) tSA2: 3 s Safety time during operation tSB: 1 s Air valve control Mains voltage: 230 V AC, 50/60 Hz Kromschroder ignition transformer TZI 7,5-12/100 Front film in English with additional stickers in D, F, I, NL, E PROFIBUS DP interface Integrated Variosub PROFIBUS DP chassis socket, 9-pin 04 Switch-off threshold, burner/pilot burner: 1 micro A 05 Main burner switch-off threshold: 1 micro A 12 Fault lock-out in the event of pilot burner failure in operation 13 Fault lock-out in the event of main burner failure in operation 15 Flame simulation check in start-up position/standby 16 Permanent pilot burner 20 Minimum burner on time tB: as safety time on start-up tSA(2) 21 Minimum burner pause time tBP: 0 s 23 Burner/pilot burner flame proving period tFS1: 0 s 25 Main burner flame proving period tFS2: 0 s 30 Air valve can be activated externally 31 Air valve cannot be activated externally on start-up 32 Air valve can be activated in the event of malfunction 34 Burner on time in Manual mode limited to 5 min. Pre-wired for double-electrode operation Minimum time between two start-ups: 15 s Kromschroder BCU480-5/3/1LW3GBB1/1 88610365 control box wiring Electrical connection is made via plug-in connection terminals (2.5 mm²) and plug-in cable glands. These cable glands can be removed to facilitate easier installation. Kromschroeder BCU480-5/3/1LW3GBB1/1 88610365 gas burner control unit designed exclusively for hard wiring. It is crucial not to reverse the phase and neutral conductors. Additionally, different phases of a three-phase current system must not be connected to Krom schroder BCU480-5/3/1LW3GBB1/1 88610365 gas burner safety control box. Voltage should not be applied to the valve and ignition outputs. No gas valve should be connected to the air valve output.