Solid state relays
Contactless switching for frequent duty.
A weak control signal isolates and switches a strong load - no arcing, long service life, suited to frequent start-stop and temperature switching.
SCR power control
Stepless voltage and power regulation.
MTC SCR modules with three-phase power controllers: a 4-20 mA signal controls the conduction angle for precise heating power.
Factory direct since 2005
Xinghua Shentai Electric Heating Appliance Factory.
Two product lines, one source
Solid state relays and SCR modules engineered to work together.
Product lines
Two halves of one control system.
Switching duty starts with solid state relays; continuous power regulation starts with SCR modules.
DREL industrial control
Solid State Relays & SCR Power Control
Xinghua Shentai Electric Heating Appliance Factory manufactures DREL solid state relays, SCR modules and temperature control systems for industrial heating, motor duty and automation.
Manufactured since 2005. Inquiry form and technical guidance on every product page.
Factory direct
Established 2005
Product lines
SSR / SCR / controllers
Inquiries
Contact form on every page
Featured product
Brand
DREL
Products
Solid state relays & SCR modules
Applications
Heating, motor and automation
DREL MTC250A SCR module with three-phase power controller.
Why DREL
Contactless switching and precise power control.
The DREL range covers both halves of an industrial heating system: solid state relays for fast frequent switching, SCR modules with controllers for continuous voltage and power regulation.
01 / Solid state relays1
Contactless switching built for frequent duty
Semiconductor switching replaces mechanical contacts - no arcing, long service life, safe in dusty, damp and corrosive environments.
Single phase / 3-32 VDC input
02 / SCR power control2
Stepless regulation with two control modes
Phase-angle (voltage) and zero-cross (power) modes cover dimming, heating and soft-start duty, driven by a standard 4-20 mA signal.
Three phase / 4-20 mA control
Products
Solid state relays and SCR controllers
Factory-direct DREL components with published specifications: control input, load ratings, cooling requirements and application notes on every product page.
Category filters are available on the full products page.
View all productsSolid State Relays
SSR480D 40A Single-Phase Solid State Relay (DC-AC)
DREL SSR480D zero-cross solid state relay. A 3-32 VDC control input switches 40 A of 40-480 VAC load with no contacts, no arcing and long service life for heating, motor and automation loads.
SCR Power Controllers
MTC250A/1600V SCR Module with Three-Phase Power Controller
DREL MTC250A 1600V SCR module paired with the DREL three-phase power/voltage controller. A weak 4-20 mA signal governs strong three-phase heating loads with precise voltage or power regulation.
One supplier
Switching, regulation and control in one family.
Matching relays, modules, controllers and sensors lets customers build complete control cabinets from one supply source.
Solid state relays
Contactless DC-to-AC switching for frequent start-stop duty.
SCR modules
Stepless voltage and power regulation up to 250 A / 1600 V.
Controllers & sensors
4-20 mA power controllers with intelligent temperature control.
Articles and guides
Selection guides and application notes
Practical buying and installation guides from the DREL team.
View all storiesFeatured storyTechnical Guides
SSR or SCR Module? How to Choose the Right Device for Heating Control
An SSR switches the load fully on or off; an SCR module regulates voltage and power continuously from a 4-20 mA signal. Compare working principles, applications and the checks to run before ordering.
Latest stories
Buyer questions
Questions buyers ask before they order
Quick answers about device selection, cooling and control signals.
Still need help? Send us a note and we will point you in the right direction.
Contact
Tell us what you are looking for
Send a question, wholesale request, or project brief and our team will follow up with next steps.
Email
SSRSylvie@outlook.com
Phone
+86 152 2559 8242
Office
Taizhou, Jiangsu, China
Hours
Mon-Fri, 9:00-17:00 (GMT+8)
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