Class B

NBTC Certification for Cellular Equipment

Cellular equipment — including cellular modules, modems, data terminals, and fixed wireless access devices — requires NBTC Class B certification across all applicable frequency bands. This page covers manufacturers of cellular end-user equipment and modules. Base station infrastructure falls outside the scope of Zergo's services.

What Counts as Cellular Equipment?

This page covers products such as cellular modules embedded in industrial devices, standalone cellular modems, mobile broadband routers, vehicle telematics units, and other terminal equipment that transmits on licensed cellular spectrum. If you manufacture smartphones or consumer tablets, see Smartphones & Tablets.

Why Class B?

Cellular equipment transmits on licensed spectrum assigned to mobile network operators. NBTC requires Class B — the full type approval path — for all terminal equipment operating on these bands.

Certification Requirements

ApplicationFrequency BandStandardCertification
Cellular GSM880–960 MHzNBTC TS 1004-2560Class B
Cellular GSM1710–1880 MHzNBTC TS 1004-2560Class B
Cellular GSM1850–1990 MHzNBTC TS 1004-2560Class B
WCDMA824–894 MHzNBTC TS 1015-2560Class B
WCDMA880–960 MHzNBTC TS 1015-2560Class B
WCDMA1710–1880 MHzNBTC TS 1015-2560Class B
WCDMA1920–2170 MHzNBTC TS 1015-2560Class B
LTE703–803 MHzNBTC TS 1027-2560Class B
LTE824–894 MHzNBTC TS 1027-2560Class B
LTE880–960 MHzNBTC TS 1027-2560Class B
LTE1710–1880 MHzNBTC TS 1027-2560Class B
LTE1920–2170 MHzNBTC TS 1027-2560Class B
LTE2300–2400 MHzNBTC TS 1027-2560Class B
LTE2496–2960 MHzNBTC TS 1027-2560Class B
LTE5150–5925 MHzNBTC TS 1027-2560Class B
5G NR703–803 MHzNBTC TS 1036-2563Class B
5G NR824–894 MHzNBTC TS 1036-2563Class B
5G NR880–960 MHzNBTC TS 1036-2563Class B
5G NR1710–1880 MHzNBTC TS 1036-2563Class B
5G NR1920–2170 MHzNBTC TS 1036-2563Class B
5G NR2300–2400 MHzNBTC TS 1036-2563Class B
5G NR2496–2960 MHzNBTC TS 1036-2563Class B
5G NR24250–27500 MHzNBTC TS 1036-2563Class B

Required Documents

  • Technical specification or datasheet including wireless communication details
  • Product photos
  • Test reports (RF, Safety, EMF as applicable) from accredited laboratories
  • ISO/IEC 17025 accreditation certificate and laboratory scope
  • Authorised declaration

No physical product sample submission is required.

Indicative Timeline

Class BApproximately 6 weeks from submission

Additional time may be required if NBTC requests supplementary documents during review.

Ready to certify your cellular equipment for Thailand?

Class B certification for cellular equipment involves multiple standards and close coordination with NBTC. Zergo manages the entire process on your behalf.

See our NBTC Certification Service →