Yes the 30PBL can have LED indication without a neutral present. Due to having no neutral present, you can only achieve LED indicator "ON" when load is "OFF".
Some of the key features are:
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- Blue LED indicator
- One way/two way switching facility with loop terminal
- Retrofit option in to any 30 series aperture
- Suitable for fluorescent loads Up to 16AX
- Shrouded in-line Terminals provide protection during installation