The SEQURE Blueson A1 4-in-1 ESC offers outstanding performance and reliability for demanding FPV builds, with two current ratings available: 65A for 6S setups and 70A for up to 8S builds.
Built on a compact multi-layer PCB with thick copper traces, the Blueson A1 is designed to handle high current while keeping heat under control. It uses quality MOSFETs and comes pre-flashed with AM32 firmware, supporting PWM frequencies up to 128KHz for smooth, responsive throttle control. It’s also compatible with BLHeli_32 variants and works with DShot, PWM, OneShot, and other common protocols, ensuring easy integration with a wide range of flight controllers.
Each channel can deliver a continuous 65A on 6S or 70A on 8S, with plenty of overhead for short bursts, making it well-suited to powerful freestyle quads, long-range cruisers, or heavy-lift drones.
The A1 uses a 20 x 20mm mounting pattern, making it ideal for modern, compact builds. Large motor solder pads make installation straightforward, while the included connector interface provides the option of a clean plug-and-play connection to your flight controller. Accessories such as an XT60 pigtail, capacitor and anti-vibration grommets are included to help complete the installation.
With its strong specifications, firmware flexibility and thoughtful design, the Blueson A1 is an excellent choice for pilots who want a compact, high-power 4-in-1 ESC at great value.
Specification
Model: Blueson A1
Processor: AT32F421
Firmware Version: AM32
PWM Frequency: 8KHz-128KHz
Working Voltage: 2-6S / 2-8S Lipo / LiHV
Continuous Current: 6S 65A / 8S 70A
Peak Current: 6S 120A / 8S 150A
Support Protocol: Dshot600/300/150,Oneshot,Multishot,PWM
Telemetry Return: YES
Galvanometer: YES
BEC: NO
Mounting Hole Spacing: 20x20mm, Φ4mm/M3
Product Size: 42.5x36x7mm
Product Weight: 19g
Included:
SEQURE Blueson A2 4IN1 ESC (select version) × 1
30AWG 40mm reverse double plug SH1.0-8P cable × 1
30AWG 60mm single plug SH1.0-8P cable × 1
12AWG 100mm power cable (black/red)×2
XT60H-M black male connector×1
35V 680UF solid capacitor×1
M3*8mm shock absorbing washer (black) × 5
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Shipping
SHIPPING & DELIVERY
We are based in the UK, but ship to most worldwide destinations. Postage rates are calculated by the size/weight and shipment location. We process orders Monday to Friday and pride ourselves on our quick turnaround of orders - most UK orders will arrive the next day.
We are partnered with several delivery companies including Royal Mail, DHL, UPS and Parcel Force. If you have a special delivery requirement or would like to arrange a shop collection please contact us.
A confirmation email will be sent when your order has been dispatched. If you wish to change your order, please contact us promptly, as we won't be able to make amendments once the order has been shipped.
Order before 4PM for same day dispatch with Royal Mail, 2PM for next day delivery with DHL and 1PM for next day delivery with APC.
We offer FREE Shipping on UK orders over £99, weighing less than 1kg.
The courier options deliver Monday to Friday, Royal Mail delivers to residential addresses on Monday to Saturday.
For small low value orders our cheapest delivery service is Royal Mail First Class. For a guaranteed next day delivery we recommend Royal Mail Special Delivery or one of our courier delivery options.
International Postage
Order before 4PM for same day dispatch with Royal Mail.
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DHL Express offers NEXT DAY delivery to most European destinations and a very fast delivery for countries further afield, generally 2-3 days.
Orders shipped outside the EU may be subject to customs charges. These charges are additional to any delivery costs and will need to be paid by the recipient.
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