SPMXSEMC12 Firma 70A Brushed Smart ESC, 2S-3S: IC3 / 35T Brushed Motor Combo

Features

Overview

The Spektrum™ Firma 70 amp Brushed Smart ESC and motor combo is waterproof and ready to use in most 1/10th scale RC crawlers. Featuring programming options that make it easy to tune for off-road scalers and rock crawlers on or off the trail.

This ESC and Motor Combo is an excellent choice to complete your 1/10th scale off-road crawlers and scale rigs. The ESC and Motor feature industry leading tunability and accessibility, making it easy to adjust settings to get the best performance out of your crawlers, at home or on the trail.

Like every component in the Spektrum™ Smart ecosystem, Firma™ Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics — together, creating the best-performing RC system for your vehicle imaginable.

Firma Smart ESCs do much more than regulate power. They function like a virtual engineer inside your model, providing a direct path to the vital operating data you need to reach peak performance. Firma Smart ESCs give you an extra layer of confidence that your electronics are all operating at their best.

With Firma Smart ESCs, you'll be better connected to your vehicle than ever before — without installing extra components that all work independently of each other. You won't need extra wires, modules, or links. A Firma electronic speed control provides a one-wire solution for obtaining telemetry data such as motor current, temperature, battery voltage and capacity.

Firma ESCs not only gather the data but also send it to your transmitter in real time, instead of only storing it for after-run study. You're able to adjust settings as needed to boost performance on the go. The Firma Smart single-wire telemetry solution has been tested for quality and performance by the best brands in RC. Their verdict? Smart technology is both simpler and superior!

Video Overview

The Spektrum Firma 3-Pole Rebuildable Brushed Motors offer an impressive low-cost upgrade for brushed esc equipped 1/10th Racers and Bashers. Featuring fully rebuildable design, impressive high rpm speed and control, and excellent efficiency.

• Adjustable timing for clockwise and counterclockwise motor rotation
• 540 can size – perfect upgrade for most 1/10th scale
• Pre-shaped curved face brushes – No break-in period required!
• Wires and 3.5mm bullets installed – No soldering required!
• Ball bearing supported rotor

The Spektrum Firma 70 amp Brushed Smart ESC features a huge range of drag brake adjustability, allowing for drivers to expertly tune their models depending on their driven train and vehicle weight. Featuring fine levels of adjustability for Drag Brake Percentage and Drag Brake Rate that is perfect for tuning your crawlers and scalers for expert level rock crawling performance.

The all-weather, waterproof design of Spektrum™ Firma™ Smart ESCs allows them to perform in nearly any terrain under almost any conditions. Firma ESCs keep you going through dust, gravel, snow, and water.

No need to connect multiple wires, sensors, modules, and links. With Firma™ ESCs, simple one-wire telemetry transmits a wide range of data directly to your transmitter in real time, including voltage, temperature, balance, capacity, and motor current.*

Multiple programming options are available. Using the Smart Firma™ ESC Programming Box, you can easily change settings on the trail to suit driving conditions. An easy-to-use Smart Link USB Updating and PC Programmer app is also available. And for those with a Text Gen capable, programming and adjustment of ESC settings can be performed, right from your Spektrum transmitter, no additional modules or wires needed!

When used with a Spektrum™ Smart LiPo battery, your Firma™ ESC provides you with the benefit of battery telemetry that's automatically transmitted to your compatible Spektrum radio in real time. On your transmitter screen you'll be presented with helpful information such as number of cycles, battery capacity used and remaining, individual cell voltage and more!

Adjustable Timing

No

Amperage

70A

Auto Cutoff

Yes

BEC

Yes

BEC Continous Current

4A (Shared Between Receiver and Aux Light Outputs)

BEC Voltage

6V / 7.4V User Selectable

Brakes

Integrated with ESC

Connector Type

IC3, 3.5mm Bullet

Forward

Yes

Input Voltage

2–3 Cell Li-Po / Li-Fe; 5–9 Cell Ni-MH / Ni-Cd

Low-Voltage Cutoff Programmable

Yes

Maximum Burst Current

200A

Maximum Continuous Current

70A

Motor Limit

540 / 550 Size Brushed Motors

Motor Type

Brushed

Number of Poles

3

Product Application

Crawling, Surface

Product Height

0.71" (18 mm)

Product Length

1.41" (36 mm)

Product Weight

1.76 oz (50 g)

Product Width

1.18" (30 mm)

Programmable

Yes

Reverse

Yes

Speed Control

Included

Technology 

Smart

Turns

35T

Water-Resistant

Yes