• Siemens SENTRON 7LF4 digital time switches (Mini, Top, Profi, Astro)
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Siemens SENTRON 7LF4 digital time switches (Mini, Top, Profi, Astro)

Siemens SENTRON 7LF4 digital time switches (Mini, Top, Profi, Astro)

SENTRON 7LF4 digital time switches in Mini, Top, Profi and Astro versions with weekly programs, plus data key, USB adapter and front panel holder.

Key features

  • Weekly program with 28 programs (Mini/Top) and extended programs for Profi/Astro
  • Profi and Astro: vacation, random and expert modes, 15 languages
  • Astro function for switching at sunrise/sunset
  • Automatic daylight-saving adjustment (Mini, Profi, Astro)
  • PC programming with 7LF4941-0 USB adapter and 7LF4941-1 data key

Specifications

Brand Siemens SENTRON
Series 7LF4
Rated operational voltage Ue 250 V AC
Frequency 50/60 Hz
Standards EN 60730-1, -2-7
Mounting DIN rail
Source Siemens Catalog LV 10 · 2026, p. 490-494
7LF4501-5 Version: Mini | Contacts: 1 NO | Uc: 230 V AC | Channels: 1 | Mounting width: 1 MW
7LF4511-0 Version: Top | Contacts: 1 CO | Uc: 230 V AC | Channels: 1 | Mounting width: 2 MW
7LF4512-0 Version: Top | Contacts: 2 CO | Uc: 230 V AC | Channels: 2 | Mounting width: 2 MW
7LF4521-0 Version: Profi | Contacts: 1 CO | Uc: 230 V AC | Channels: 1 | Mounting width: 2 MW
7LF4521-2 Version: Profi | Contacts: 1 CO | Uc: 24 V AC/DC | Channels: 1 | Mounting width: 2 MW
7LF4522-0 Version: Profi | Contacts: 2 CO | Uc: 230 V AC | Channels: 2 | Mounting width: 2 MW
7LF4522-2 Version: Profi | Contacts: 2 CO | Uc: 24 V AC/DC | Channels: 2 | Mounting width: 2 MW
7LF4531-0 Version: Astro | Contacts: 1 CO | Uc: 230 V AC | Channels: 1 | Mounting width: 2 MW
7LF4532-0 Version: Astro | Contacts: 2 CO | Uc: 230 V AC | Channels: 2 | Mounting width: 2 MW
7LF4941-1 Version: Data key for Profi/Astro | Contacts: - | Uc: - | Channels: - | Mounting width: -
7LF4941-0 Version: USB adapter + software (Profi/Astro) | Contacts: - | Uc: - | Channels: - | Mounting width: -
TimersSiemens
11 product codes available in this family
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Siemens SENTRON 7LF4 digital time switches (Mini, Top, Profi, Astro)

Brand Siemens·Timers

Available part numbers (11)

7LF4501-5, 7LF4511-0, 7LF4512-0, 7LF4521-0, 7LF4521-2, 7LF4522-0, 7LF4522-2, 7LF4531-0, 7LF4532-0, 7LF4941-1 + 1 more — see full table ↓

How to order

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Product codes & specifications
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Product codeSpec
7LF4501-5Version: Mini | Contacts: 1 NO | Uc: 230 V AC | Channels: 1 | Mounting width: 1 MW
7LF4511-0Version: Top | Contacts: 1 CO | Uc: 230 V AC | Channels: 1 | Mounting width: 2 MW
7LF4512-0Version: Top | Contacts: 2 CO | Uc: 230 V AC | Channels: 2 | Mounting width: 2 MW
7LF4521-0Version: Profi | Contacts: 1 CO | Uc: 230 V AC | Channels: 1 | Mounting width: 2 MW
7LF4521-2Version: Profi | Contacts: 1 CO | Uc: 24 V AC/DC | Channels: 1 | Mounting width: 2 MW
7LF4522-0Version: Profi | Contacts: 2 CO | Uc: 230 V AC | Channels: 2 | Mounting width: 2 MW
7LF4522-2Version: Profi | Contacts: 2 CO | Uc: 24 V AC/DC | Channels: 2 | Mounting width: 2 MW
7LF4531-0Version: Astro | Contacts: 1 CO | Uc: 230 V AC | Channels: 1 | Mounting width: 2 MW
7LF4532-0Version: Astro | Contacts: 2 CO | Uc: 230 V AC | Channels: 2 | Mounting width: 2 MW
7LF4941-1Version: Data key for Profi/Astro | Contacts: - | Uc: - | Channels: - | Mounting width: -
7LF4941-0Version: USB adapter + software (Profi/Astro) | Contacts: - | Uc: - | Channels: - | Mounting width: -

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