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Sangamo SC4421PRO4 2 Channel 7 Day Time Switch - Bluetooth Programmable

£9199
The RRP is the manufacturer's recommended retail price of the item.
13 In Stock - Ready to Ship
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Description

The Sangamo SC4421PRO4 is a 2-channel 7-day programmable time switch with Bluetooth connectivity, providing two independent 16A volt-free changeover contacts controlled via a backlit LCD interface or a smartphone app. Each channel supports up to 300 memory locations, allowing complex switching schedules for lighting, heating, ventilation or other electrical loads across the week.

Designed for panel mounting in electrical enclosures, the unit measures 97mm wide by 80mm high by 62mm deep and ships with panel-mount brackets. DIN rail mounting is possible with the separately-sold accessory 95587. The Bluetooth capability allows programming and schedule adjustment via iOS, Android or Windows devices without removing the unit from the panel or opening the enclosure, making it particularly useful in commissioning and maintenance scenarios where the switch is installed behind a locked door or in a location difficult to access physically.

The two volt-free changeover contacts operate independently, each rated at 16A resistive load. This means either contact can switch mains voltage loads, low-voltage DC circuits, or act as a dry-contact signal to other control equipment without tying the time switch to a specific voltage. The 10-year battery reserve maintains programme memory and real-time clock accuracy during power outages, so schedules resume correctly when power returns. The LCD shows date, day of the week, current time, and active programme status across 35 switching steps.

Specification
Product Net Weight (KG) 0.26
Product Gross Weight (KG) 0.286
Outer Gross Weight (KG) 2.6
Product Length (mm) 97
Product Width (mm) 80
Product Height (mm) 62
Outer Length (mm) 345
Outer Width (mm) 168
Outer Height (mm) 130
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What loads can the 16A changeover contacts switch?

Each contact is volt-free and rated at 16A resistive. They can switch mains voltage lighting or heating circuits, low-voltage DC loads, or act as dry-contact signals to other control systems. The volt-free design means the contact is not tied to a specific supply voltage.

Can the time switch be programmed without the Bluetooth app?

Yes. The unit has a backlit LCD interface with four control buttons (M, -, +, OK) for manual programming. The Bluetooth app is optional and provides a more convenient method for setting schedules, particularly when the switch is installed in a location that is difficult to access.

Is DIN rail mounting possible?

The SC4421PRO4 ships ready for panel or surface mounting. DIN rail mounting requires the separately-sold accessory 95587, which is not included in the box.

How long does the battery reserve last?

The battery reserve is rated at 10 years and maintains programme memory and real-time clock accuracy during mains power outages. The battery is not user-replaceable.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

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Installation

Fits standard UK back boxes

Designed to fit standard UK back boxes for a straightforward swap of your existing fittings.

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Free delivery on orders over £99, in the UK and worldwide. Easy returns within 14 days, subject to our returns policy. Full manufacturer warranty included.

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    Description

    The Sangamo SC4421PRO4 is a 2-channel 7-day programmable time switch with Bluetooth connectivity, providing two independent 16A volt-free changeover contacts controlled via a backlit LCD interface or a smartphone app. Each channel supports up to 300 memory locations, allowing complex switching schedules for lighting, heating, ventilation or other electrical loads across the week.

    Designed for panel mounting in electrical enclosures, the unit measures 97mm wide by 80mm high by 62mm deep and ships with panel-mount brackets. DIN rail mounting is possible with the separately-sold accessory 95587. The Bluetooth capability allows programming and schedule adjustment via iOS, Android or Windows devices without removing the unit from the panel or opening the enclosure, making it particularly useful in commissioning and maintenance scenarios where the switch is installed behind a locked door or in a location difficult to access physically.

    The two volt-free changeover contacts operate independently, each rated at 16A resistive load. This means either contact can switch mains voltage loads, low-voltage DC circuits, or act as a dry-contact signal to other control equipment without tying the time switch to a specific voltage. The 10-year battery reserve maintains programme memory and real-time clock accuracy during power outages, so schedules resume correctly when power returns. The LCD shows date, day of the week, current time, and active programme status across 35 switching steps.

    Specification
    Product Net Weight (KG) 0.26
    Product Gross Weight (KG) 0.286
    Outer Gross Weight (KG) 2.6
    Product Length (mm) 97
    Product Width (mm) 80
    Product Height (mm) 62
    Outer Length (mm) 345
    Outer Width (mm) 168
    Outer Height (mm) 130
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What loads can the 16A changeover contacts switch?

    Each contact is volt-free and rated at 16A resistive. They can switch mains voltage lighting or heating circuits, low-voltage DC loads, or act as dry-contact signals to other control systems. The volt-free design means the contact is not tied to a specific supply voltage.

    Can the time switch be programmed without the Bluetooth app?

    Yes. The unit has a backlit LCD interface with four control buttons (M, -, +, OK) for manual programming. The Bluetooth app is optional and provides a more convenient method for setting schedules, particularly when the switch is installed in a location that is difficult to access.

    Is DIN rail mounting possible?

    The SC4421PRO4 ships ready for panel or surface mounting. DIN rail mounting requires the separately-sold accessory 95587, which is not included in the box.

    How long does the battery reserve last?

    The battery reserve is rated at 10 years and maintains programme memory and real-time clock accuracy during mains power outages. The battery is not user-replaceable.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.