HLL05.1F-01M0-G0600-N-11-NNNN-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat HLL05.1F-01M0-G0600-N-11-NNNN-NNNN is a DC bus choke with a nominal current of 600 Amps and a nominal inductance of 1 millihenry. Part of the HLL Bus Chokes series, it supports a nominal DC bus voltage of 1100 V and uses liquid cooling. This smoothing choke has an IP00 degree of protection and an unpacked weight of 175 Kilograms.
Internal Product Review
The HLL05.1F-01M0-G0600-N-11-NNNN-NNNN is a DC bus smoothing choke designed for stable power conditioning in demanding drive systems. Rated for 600 A and DC 1100 V, the unit offers impressive capacity and consistent filtering performance. Liquid cooling and a 160 °C temperature contact support dependable operation under sustained load.
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Product Description:
The HLL05.1F-01M0-G0600-N-11-NNNN-NNNN is a passive power-line element manufactured by Bosch Rexroth Indramat for the HLL Bus Chokes series. It is used as a DC-bus choke between the rectifier and the inverter, where it limits ripple current and suppresses fast transients on the link. By smoothing energy flow in the bus, the unit helps reduce electrical stress on connected drive components during acceleration, deceleration, and regenerative operation. In multi-axis systems, this effect can help keep the shared bus more stable when several inverters draw or return energy at the same time.
The choke carries a nominal current of 600 A, so its copper path and magnetic circuit are intended for continuous heavy-duty operation. Its DC bus is rated for DC 1100 V, matching high-power converter platforms that use elevated link voltage for efficient energy transfer. A nominal inductance of 1 mH adds impedance that smooths current ripple without imposing unnecessary resistance in the bus path. Heat is removed through liquid cooling, and the enclosure has a protection rating of IP00, so the unit is intended for cabinet installation behind suitable touch protection. The inductive element works in the DC path rather than at the motor output, so it conditions bus current before that energy reaches the inverter stage.
For electrical isolation, the terminals can withstand an AC switching voltage of 250 V on the auxiliary side during test conditions. Thermal monitoring is provided by a normally closed contact that opens at 160 °C, and that contact is rated for up to 1 A so it can be wired into an alarm or shutdown circuit. The unpacked mass is 175 kg, which means lifting equipment is needed during placement and mounting. This arrangement allows the control system to interrupt operation if overheating occurs.
