WB-MRPS6 hardware revisions

The batch number (Batch No.) is shown on a label on the side of the enclosure or on the printed circuit board.

Revision	Batches	Production period	Changes from the previous revision
1.4	v1.4F/1	06.2026 - ...	Microcontroller board v.4.8
1.4	v1.4C/1, v1.4C/2, v1.4C/3, v1.4D, v1.4D/1, v1.4E, v1.4F	08.2025 - 06.2026	Batch using enclosures with a matte surface
1.4	v1.4B, v1.4B/1, v1.4C	08.2025	Without EEPROM memory IC
1.4	v1.4A	04.2025 - 08.2025	Minor internal changes
1.3	v1.3A, v1.3B, v1.3C, v1.3D, v1.3D/1, v1.3E, v1.3F, v1.3G	10.2023 - 11.2024	Minor internal changes
1.2	v1.2E, v1.2E/2, v1.2F, v1.2F/1, v1.2G, v1.2H, v1.2H/1, v1.2I, 1.2I/1	11.2022 - 10.2023	New EEPROM chip and serial number format Microcontroller board v.4.2
1.2	v1.2A, v1.2B, v1.2C, v1.2D	03.2022 - 07.2022	Microcontroller board v.4.0
1.1	v1.1K - v1.1L	11.2021 - 02.2022	Without TVS diodes on relay outputs
1.1	v1.H - v1.1J	07.2021 - 11.2021	GD32 microcontroller
No new features; final firmware 1.20.4 dated 7 November 2023
1.1	v1.1A - v1.1G	07.2019 - 06.2021	Pluggable DEGSON power/RS-485 terminals Microcontroller board v.3.4
1.0	207, 285	Before June 2019	Screw power terminals and pluggable KEFA power/RS-485 terminals