Home
Shop
Pololu RC Switch with Relay (Assembled)

Skip to the beginning of the images gallery

Pololu RC Switch with Relay (Assembled)

Rating:

100% of 100

SKU: POLOLU-2804 Brand: Pololu

This RC relay enables easy control of large, electrically isolated loads in radio control (RC) systems. The activation threshold and direction are configurable, and a safe-start feature reduces the likelihood of unexpected activation. This assembled version ships with the 5V relay, terminal block, and straight male header pins soldered in, so it can be integrated into hobby RC systems without the need for additional soldering. The included power relay is an Omron G5LE-14-DC5 and is rated for up to 10 A under most conditions.

$21.90 AUD, inc GST

$19.91 AUD, exc GST

Available with a lead time
Expect dispatch between Apr 23 and Apr 29

Quantity Discounts:

10-25 $19.31 (exc GST)
25+ $18.91 (exc GST)

This product consists of a single-pole, double-throw (SPDT) power relay and a control circuit that measures incoming radio control (RC) signals, making it easy to control large, electrically isolated loads in RC systems. Example applications include using extra channels on an RC receiver or servo controller to turn on lights, motors, or irrigation valves. The RC switch is available pre-soldered or as a partial kit that allows for greater application flexibility:

Alternatives available with variations in these parameter(s):partial kit?Select variant…

The RC switch measures the width of incoming RC pulses and compares it to a user-configurable threshold (with ±64 µs of hysteresis) to decide whether to activate the relay. By default, the threshold is approximately 1700 µs, with switch activation occurring above the threshold (longer pulses), but the switch has a learning mode that allows you to change the threshold and the activation direction. A safe-start feature reduces the likelihood of unexpected activation.

Pololu generally recommend using a 4- or 5-cell NiMH or NiCD battery pack to power the switch. The battery pack will typically be connected to an RC receiver or servo controller, which passes the power on to the RC switch.

The included relay is an Omron G5LE-14-DC5 (1MB pdf) and is rated for up to 10 A under most conditions.

Included hardware

The Pololu RC Switch with Relay is available in two versions:

The assembled version ships with the 5V Omron relay, header pins, and terminal block soldered in. A 1×2-pin male header and a shorting block are also included with the assembled version and can be used to configure the device. The assembled version can be incorporated into an existing RC system without the need for any additional soldering.
The partial kit version gives you the flexibility to choose different connections. It includes a 5V Omron relay, 0.1" 12-pin male header, a 0.1" 12-pin right-angle male header, a 3-pin terminal block, and a shorting block. These strips can be broken into smaller strips and optionally soldered to the board, or wires can be soldered directly to the board for the most compact installation.

Warning: When soldering the terminal block into the partial kit version, be sure to use the larger set of holes. If you use the smaller holes, which are intended for 0.2" male header pins, there will not be enough space to mount the relay.

Pololu RC Switch with Relay (Assembled) with included hardware.

Pololu RC Switch with Relay (Partial Kit).

The board has four mounting holes that work with #2 or M2 screws (not included).

Advantages over similar products

Compact layout
User-configurable activation threshold and direction
Safe-start mode to reduce likelihood of unexpected activation
Zener diode for fast current decay on relay coil
Specification of electrical routing clearance rules on relay switch nodes (see user’s guide)

Outputs and indicator LED

The RC switch provides feedback about what state it is in via a yellow indicator LED. Status information is also provided on two output pins:

The GOOD pin indicates the presence of a valid RC signal (10–330 Hz pulse rate, 0.5–2.5 ms pulse width).
The OUT pin indicates whether the relay is activated (i.e. the relay coil is energized).

More information about the Pololu RC Switch with Relay can be found in the user’s guide.

Warning: This product is not designed to or certified for any particular high-voltage safety standard. Working with voltages above 30 V can be extremely dangerous and should only be attempted by qualified individuals with appropriate equipment and protective gear.

The Pololu RC Switch with Relay connected to a typical RC receiver.

Other RC switches

Pololu offer an RC switch with a digital output for applications that just require a low-current digital signal, and Pololu offer two versions of this switch with integrated MOSFETS instead of a relay: RC switch with a small MOSFET and RC switch with a medium MOSFET (the latter of which also has an integrated voltage regulator) .

The Pololu RC Switch family of products.

People often buy this product together with:

Pololu RC Switch with Digital Output

Pololu RC Switch with Small Low-Side MOSFET

Pololu RC Switch with Medium Low-Side MOSFET

Dimensions

Size:	1" × 1.35" × 0.9"
Weight:	17 g

General specifications

Partial kit?:	N

Identifying markings

PCB dev codes:	rcs03a
Other PCB markings:	0J7529

Documentation and other information

Pololu RC Switch User’s Guide (Printable PDF)

User’s manual for the Pololu RC Switch with Medium Low-Side MOSFET and the Pololu RC Switch with Relay.

File downloads

Omron G5LE single-pole 10A power relay datasheet (1MB pdf)
Pololu RC Switch with Relay schematic diagram (165k pdf)

Printable schematic diagram of the Pololu RC Switch with Relay.
Dimension diagram of the Pololu RC Switch with Relay (348k pdf)
3D model of the Pololu RC Switch with Relay (5MB step)
Drill guide for Pololu RC Switch with Relay (39k dxf)

This DXF drawing shows the locations of all of the board’s holes.

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$6+ for Standard Post (typically 6+ business days, tracked)
$10+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$11+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!