Soft Starter
ST300 Online Soft Starter Cabinet
A soft starter control cabinet with the circuit breaker built in, dropping the separate starter-plus-bypass construction that makes conventional panels expensive.

ST300 online soft Starter cabinet is new generation soft starter panel, that with completely function, easy operation, no need commissioning, minimum the maintenance. This products break through traditional soft starter cabinet configuring, which need built in soft starter and by pass inside with high cost. ST300 online soft starter control panel cabinet is a economic , practical and convenience one, very popular in various industrial application filed.T300 Online Soft Starter Cabinet
Ask about ST300 on WhatsApp Email for pricing
Sold to buyers in Philippines, Turkey, Morocco and beyond.


Problems it solves
Why this model gets specified
Conventional soft starter cabinets need a starter and a bypass built inside, at high cost. ST300 breaks out of that configuration.
Panels that need commissioning delay handover. ST300 needs no commissioning.
Contactors are the usual maintenance item in a starter panel. The built-in circuit breaker removes the need for one.
Who it is for: Contractors and end users who want a ready-to-install three-phase soft start panel rather than a built-up assembly.
Key benefits
ST300 online soft starter control panel cabinet is a economic
practical and convenience one, very popular in various industrial application filed
ST300 online soft starter cabinet 3 Phase Input 3 Phase Output 380/440/480V
Built it circuit breaker
no need contactor can working
Technical specifications
As published for this series. Confirm the exact figures for your model code with Boray before ordering.
| Altitude | Below 1000M. It have to rise the rate power when the altitude is more than 1000M. TST300perature -30 +55 oC Humidity 90%RH without dew condensation. Vibration <0.5G Structure Protection Class IP20 |
|---|---|
| Cooling | Pattern Natural wind cooling |
Before you order the ST300 Online Soft Starter Cabinet
Four or five details decide the model code. These are the ones that matter for this series:
- Apply derating
- Altitude: Below 1000M. It have to rise the rate power when the altitude is more than 1000M. TST300perature -30 +55 oC Humidity 90%RH without dew condensation. Vibration <0.5G Structure Protection Class IP20
Every Boray unit is full-load tested before delivery, and the customised VFD programme can adapt function set, protection rating and mechanical arrangement where a standard model does not fit. Operation manuals and wiring diagrams are issued per model code — request them with your enquiry.
Frequently Asked Questions
What is built into the cabinet?
A circuit breaker, so no contactor is required.
Does it need commissioning?
No. It is supplied with complete functions, easy operation and no commissioning requirement.
How does it differ from a traditional soft starter cabinet?
Traditional cabinets need a soft starter plus a bypass built inside, which raises cost. ST300 uses an economical online configuration instead.
Is it three-phase?
Yes, ST300 is a three-phase online soft starter control panel cabinet.
What maintenance does it need?
Minimum maintenance, per the product description. Confirm the service interval for your duty with Boray.
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View specifications →Request pricing for the ST300 Online Soft Starter Cabinet
Send the motor rating, supply voltage and site conditions. Boray confirms the model code, options and lead time — documentation is available on request.
WhatsApp +86 189 2640 9646 Email the engineering team All contact details
