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Catalog excerpts
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Battery chargers Technical addendum
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technical addendum
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Technical addendum
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Technical addendum DOCUMENT CONTROL First publication Adding of BP+ range. More on IEC61010-1. Corrections on FAULT relays (text, photos and diagrams). Corrections on derating temperature of BP0524M & BP1012M. March 12th, 2017 Modification BP+ range 305 VAC Modification BP range BP2024M becomes BP 2024S. Chapter “3.3 Power factor” deleted. The BP+0324M-305 become BP+0324M. Additional information on parallel diodes for BP 4024T. Corrections on
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Technical addendum This document is intended to help understand our Product information and technical documentations, and make informed choices. It starts with installation hints. COMMON FEATURES Mounting Only install the charger in a pollution degree 2 environment (dry, well‐ventilated locations). Hang the charger vertically with the input terminal strip at the bottom. To fasten the charger on the 35 DIN rail (7.5 or 15): 1. Tilt the charger slightly rearwards 2. Fit the charger over top hat rail 3. Slide it downward until it hits the stop 4. Press against the bottom for locking 5. Shake...
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Technical addendum By design our chargers are category II regarding the installation. As illustrated for home and factory, the risk of electrical shock is higher upstream in the distribution system, especially if the location is lightning‐prone: CAT II: all outlets at more than 10m from CAT III or 20m from CAT IV If the category III or IV is required, a surge protection device must be added. Ask our customer service for advice. 1.2 Definitions The individual technical documentations specify various characteristics, such as Charger inrush current: at power‐on, a large pulse current is...
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Technical addendum Connect the protective earth to ground. Isolate the charger from the AC source, before connecting or disconnecting a battery. Do not open the charger. Never charge a frozen battery. Due to a charge imbalance risk, avoid charging batteries in parallel. HAZARD OF BURN & FIRE Do not touch the unit in operation and shortly after disconnection Risk of fire and short circuit. Protect the openings from foreign objects or dripping liquids Failure to follow these instructions may result in serious injury Charge curve The charge takes place as follows: I constant, U increases to...
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Technical addendum Derating The performance might downgrade beyond the specified limits in the technical documentations: AC voltage below lower limit: Example: BP0524M (the AC voltage limit is 85V or 170V depending on the position of a switch) Temperatures above the limits: NOTE General outlines are shown here. To see
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Technical addendum Paralleling chargers For a better availability or to increase the output currents, it is advised to parallelize several chargers. Except for BP+ range (where the diode is built in), Schottky diodes must be installed so that there is no reverse current and harmonics do not add. Redundancy is also possible. The diode SBX 2550 is connected between the terminals of a DIN terminal module. The kit includes the module and the diode. The chargers are hooked up as follows (in this case, AC inputs are L1‐N): L1 N Adjust to identical voltages on both chargers (at mid‐run typically)...
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Technical addendum BPR (COMPACT) RANGE Diagram block: I/P = Input, FG = Front Ground, OVP = Over Voltage Protection A DC OK isolated relay output is activated in event of any fault. It is an NO contact. 2.1 Protections A Schottky diode must be installed on the output (positive terminal) to prevent reverse power in the case the battery has a higher voltage. It might result from a power outage: then the relay opens, the led goes off (unless there is no diode). The battery higher voltage might also be due to the charge by a charge alternator of a generator. Internal protections: Overcurrent:...
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Technical addendum Example of installation (the fuse and fuse module on the right are NOT provided): In this example, the diode is connected to the module on the right, but it can also span across the two smaller modules. AC side: install a fuse or a breaker on the input. The AC currents, and inrush currents in cold start, show in the data sheets. We suggest the following: BPR Anti‐surge fuse Circuit‐breaker C16. Max. count of chargers is Connections Recommended wires: made of copper, they must withstand temperatures of at least 80°C (e.g., UL1007). Cross‐section and tightening torque for...
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Technical addendum Comparison of the various models Output Current – rated/max Voltage – rated Voltage – adjust range Rated power Hold‐up time Voltage range Frequency range Leakage current typical,@ rated current Over temperature Temperature Working derate @higher Working humidity Storage
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Technical addendum BP RANGE Diagram block: BP XXXXT Riser block: BPXXXXS I/P = Input, FG = Front Ground OVP = Over Voltage Protection OTP = Over Temperature Protection by temperature switch (detection on one or both sides of the transformer) Leakage current: the Y capacitors between I/P and FG cause some leakage current flow from line or neutral to the case; the leakage current to the case is not dangerous. A proper connection to ground discharges the case. 3.1 Protections A Schottky diode must be installed on the output (positive terminal) to prevent reverse power in the case the battery...
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Technical addendum AC side: insert a breaker or fuse. The AC currents, and inrush currents in cold start, show in the data sheets. We suggest the following: BP Anti‐surge fuse Circuit‐breaker C16 Max. count of chargers is Dual phase input in Wye connection: use of only two phases BP Connections Note 2024S L‐N Phase to phase is forbidden Connections Recommended wires: made of copper, they must withstand temperatures of at least 80°C (e.g., UL1007), and have cross‐sections as follows: BP Rated current (A) Cross‐section (mm²) Cross‐section (AWG) Make sure that all strands of each stranded wire...
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Technical addendum Comparison of the various models Current – rated/max Voltage – rated Voltage – adjust range Rated power Hold‐up time Voltage total tolerance Voltage range Frequency range Inrush current (typ.) Cold start Leakage current Typical,@ rated current Over temperature
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