Industry
EV Charging Accessories
EV charging accessories handle live mains, pilot signaling, and increasingly cloud communication. Each unit needs per-unit RCD verification, pilot signal tolerance within spec, and firmware that satisfies OCPP chargepoint operator certification requirements. Production cannot treat these as simple consumer electronics.
Buyer pains we hear most
- Pilot signal tolerance drift between units causes charge-session failures in the field
- Per-unit RCD verification adds test time that must be planned into production throughput
- OCPP chargepoint operator certification imposes firmware version traceability requirements
- Cable strain relief field failures trace back to inconsistent assembly torque and crimp force
Typical product traits
- PWM control pilot with tight tolerance analog front end
- RCD type B front end for AC and DC fault detection
- OCPP 1.6 or 2.0.1 modem for cloud communication and load management
- Industrial connector termination with defined crimp and torque specification
Regulatory environment
EV conductive charging system
EN IEC 61851-1
In-cable control and protection device (IC-CPD)
IEC 62752
EMC for EV charging equipment
EN IEC 61851-21-2
Low Voltage Directive
2014/35/EU
Test plan considerations
- Per-unit pilot signal amplitude and duty cycle verification against EN IEC 61851-1 tolerance
- Per-unit RCD trip test covering AC and DC fault conditions
- OCPP message exchange functional test against reference backend
- Connector pull-out and strain relief mechanical sample test per batch
Frequently asked questions
Do we need a written test plan?
Yes. A production test plan defines pass and fail criteria, FCT vectors, calibration steps, and serialization rules. We help draft one if your team has not written one yet, based on your firmware behavior and target field performance.
Can you load and provision firmware in production?
Yes. In-line firmware loading during functional test and offline programming via dedicated fixtures. We support SWD, JTAG, UART, and USB-DFU interfaces, multi-image programming (bootloader, application, file system), and signed bootloader chains.
Do you support RoHS and REACH compliance?
Yes. We work with RoHS-compliant component selection and SAC305 lead-free solder by default. REACH substance documentation comes from supplier declarations forwarded with each batch.
Quote ev charging accessories
Send your product files and a short description. We respond within one business day.