Silverstone supplies the SE-series of low-voltage electrical apparatus for 400V-class distribution systems — air circuit breakers, moulded case and miniature circuit breakers, residual current devices, automatic transfer switches, load-disconnectors, AC contactors, starters and overload relays. Sourced from qualified manufacturers in China and consolidated with accessories and spares into one export shipment for panel builders, contractors and utilities.
SER2 thermal 0.1 – 93 A · SER9 electronic 30 – 630 A setting ranges
System voltage
AC 400 V class low-voltage distribution, 50/60 Hz
Sourcing base
Suzhou Industrial Park, Jiangsu, China
Family overview based on our current price brochure. Final ratings, accessories and test documentation are confirmed per project datasheet — include your specification with the inquiry.
Typical Applications
LV switchgear & distribution boardsMain & sub-main incomersDual-power / standby transferMotor control & capacitor banksCommercial & industrial buildingsInfrastructure projects
Frequently Asked Questions
Which low-voltage product families do you supply?
The SE-series range covers air circuit breakers (SEW55/SEW60/SEW65, 200–6300A), moulded case circuit breakers (SEM55/SEM33, 16–630A, Icu up to 100kA at 400V), miniature circuit breakers and RCBOs (SEB60/SEB60L), automatic transfer switches (SEQ33 CB class and SEQ55 PC class, 6–3200A), load-disconnectors and isolators (SEG33, SEH60), AC contactors and starters (SEC1 series, 9–1000A) and thermal or electronic overload relays (SER2/SER9). Indoor vacuum circuit breakers (SED2000, 12/24kV) are also listed in the same catalogue.
Are ACBs available in fixed and drawer versions?
Yes. SEW series intelligent universal breakers are offered in fixed and drawer types, 3-pole and 4-pole, with an M-type intelligent controller as standard configuration. Optional controller functions include load monitoring, voltage/frequency measurement and protection, MCR and HSISC functions.
What information do you need to quote low-voltage apparatus?
Product family or model, rated current, number of poles, breaking capacity (for breakers), fixed or drawer type (for ACBs), required accessories such as shunt trip, under-voltage release or auxiliary contacts, quantity and destination port. We return a priced offer with lead time within 24 hours on working days.
Do you supply accessories and spare parts?
Yes. Shunt trips, under-voltage releases (instantaneous and delayed), auxiliary and alarm contacts, mechanical interlocks, door frames, phase barriers, motor operators and intelligent controllers are available for the breaker ranges, together with auxiliary contacts and timer modules for the contactor range.
