ABB REM 545 Machine Protection Terminal / Protection Relay

FAQ

Q1: What is ABB REM 545?
A: It is an ABB machine protection and control terminal designed mainly for generators and large motors.

Q2: What is the main application of REM 545?
A: It is used as the main protection system for small and medium-power generator units and for protection of large MV synchronous/asynchronous motors.

Q3: What current inputs does it support?
A: The current inputs are available for 0.2 A, 1 A or 5 A rated current, depending on the hardware configuration.

Q4: What voltage inputs does REM 545 support?
A: The voltage inputs can be parameterized for 100, 110, 115 or 120 V rated voltage.

Q5: How many digital inputs and outputs does it have?
A: The REM 545 configuration can provide up to 25 digital inputs and 18 output relays. The exact number depends on the selected hardware version.

Q6: Does REM 545 support communication?
A: Yes. It supports communication options including SPA and LON, and IEC 61850 can be supported through the appropriate adapter/configuration.

Q7: What are the dimensions and weight?
A: The unit is approximately 223.7 × 265.9 × 235 mm (W × H × D), with a net weight of approximately 8 kg.

Q8: Is REM 545 still an active ABB product?
A: No. ABB currently classifies the REM 545 as a legacy product, and states that it has been not active since 2022.

ABB REM 545

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