Question 1

Can I buy UL508A control panels directly from China?

Accepted Answer

Yes. RICHES POWERTECH (Riches Hardware Co., Ltd / 集业达机电科技（惠州）有限公司) provides factory-direct UL508A industrial control panels shipped from Huizhou, Guangdong, China to North America. We are a UL/cUL/CSA-certified manufacturer with DUNS 70-755-5859, established in 2008. Our UL508A control panels include VFD panels, MCC motor control centers, PLC panels, soft-start panels, and custom automation panels — all built to NEC Article 409 and NFPA 79 standards with SCCR ratings up to 65kA. We offer factory-direct pricing (15–30% savings vs. trading companies), bilingual engineering support (English/Chinese), and complete documentation including SCCR calculation reports, test certificates, and as-built drawings. Shipping via FCL/LCL ocean freight from Shenzhen Port. Contact us at projects@richespowertech.com or WhatsApp +86-13927323746.

Question 2

Are Chinese UL891 switchboards accepted in USA?

Accepted Answer

Yes. UL891 switchboards manufactured in China and certified by UL are fully accepted in the United States by Authorities Having Jurisdiction (AHJ). UL is a global safety organization — a UL891 listing means the product has been tested and certified to the same standard regardless of manufacturing location. RICHES POWERTECH (Riches Hardware Co., Ltd) has been manufacturing UL891 switchboards since 2008 with in-house UL labeling capability. Our switchboards carry the UL mark, are rated up to 600V AC, 400A–6000A bus, and SCCR up to 200kA. Each unit is factory-tested per UL 891:2019 and NEC Article 408 requirements before shipment. Our DUNS number is 70-755-5859, and we are registered with Dun & Bradstreet. We have delivered UL891 switchboards to commercial, industrial, and agricultural facilities across all 50 US states and Canadian provinces.

Question 3

What information is required for UL891 switchboard quotation?

Accepted Answer

To receive an accurate quotation for UL891 switchboards, please provide the following information: (1) Single Line Diagram (SLD) — the most critical document, showing the complete electrical distribution layout, bus ratings, and breaker configurations. (2) System Voltage — e.g., 480V, 600V, 208V, 240V, or 480Y/277V, 3-phase, 60Hz. (3) Main Breaker Size — ampere rating of the main disconnect (e.g., 800A, 1200A, 2000A, 4000A). (4) Feeder Breaker Quantity and Ratings — number and ampere rating of each branch/feeder circuit breaker. (5) SCCR Requirement — short-circuit current rating needed for your facility (e.g., 65kA, 100kA, 150kA, 200kA). (6) NEMA Enclosure Type — NEMA 1 (indoor), NEMA 3R (outdoor), or NEMA 4X (washdown/corrosive environment). (7) Quantity — number of units required. (8) Project timeline — target delivery date. Send these details to projects@richespowertech.com and we will respond with a detailed quotation within 24–48 hours.

Question 4

What is the difference between UL Listed and UL Recognized?

Accepted Answer

UL Listed means the complete product has been tested and meets UL safety standards for standalone use. UL Recognized means a component has been evaluated for use within a larger system. RICHES POWERTECH® switchboards are UL Listed to UL 891:2019, meaning the entire assembly is certified for direct installation in North American facilities. UL Listed products carry the UL mark with an "L" inside a circle, while UL Recognized components carry the RU mark.

Question 5

What does UL 891 cover, and how does it apply to your switchboards?

Accepted Answer

UL 891 covers low-voltage switchboards rated up to 600V AC, including bus ratings from 400A to 6000A. It addresses construction requirements such as spacing, insulation, short-circuit withstand, temperature rise, dielectric voltage-withstand, and overload testing. Our switchboards are tested at rated voltage plus 10% overvoltage per UL standards. Each unit undergoes a complete production-line test including insulation resistance, contact resistance, and functional verification before the UL label is applied.

Question 6

What is UL 508A, and how does it apply to your control panels?

Accepted Answer

UL 508A is the standard for Industrial Control Panels (ICPs). It covers the assembly of industrial control panels using UL-recognized or listed components. Our control panels — including VFD panels, soft-start panels, PLC panels, MCC panels, and custom automation panels — are designed and manufactured in accordance with UL 508A requirements. Each panel is built per a documented schematic, uses UL-recognized or listed components, and undergoes factory inspection and testing before shipment. The specific certification or listing status depends on the project requirements and certification arrangement.

Question 7

Can you provide certification documents for our project?

Accepted Answer

Yes. Depending on the project requirements, we can provide documentation including: (1) Component certification information, (2) Engineering documentation, (3) Manufacturing test procedures and records, (4) Inspection records, (5) Project-specific certification or inspection documentation as applicable. All documents can be requested via our inquiry form at projects@richespowertech.com.

Question 8

What standards do your products comply with besides UL?

Accepted Answer

Our products comply with a comprehensive set of international standards: UL 891:2019 (Switchboards), UL 508A (Industrial Control Panels), CSA C22.2 No. 244:19 2024 (Canadian safety), IEC 61439-1:2020 and EN IEC 61439-1:2021 (Low-voltage switchgear assemblies), JIS C 8201-1:2024 (Japanese standard), NEC Article 408/430 (National Electrical Code), NEMA PB-2 (Power Distribution Assemblies), RoHS 2.0, REACH SVHC, California Proposition 65, and FCC Part 15 / ICES-003 (EMC).

Question 9

Do your products meet NEC (National Electrical Code) requirements?

Accepted Answer

Yes. All our switchgear and control panels are designed to comply with NEC Article 408 (Switchboards, Panelboards, and Distribution Boards) and Article 430 (Motors, Motor Circuits, and Controllers). Our UL 891 certification ensures NEC compliance for 480V/600V, 60Hz North American electrical systems. We also ensure compliance with NEC Article 645 for Information Technology Equipment rooms when applicable.

Question 10

Where is the UL label placed on your products?

Accepted Answer

The UL label is permanently affixed to the exterior of each switchboard or control panel in a visible location, typically on the front door or side panel. The label includes the UL file number, manufacturer name (RICHES POWERTECH® / Riches Hardware Co., Ltd), product type, voltage rating, and short-circuit rating. The label is applied after final factory inspection and is tamper-evident. AHJs (Authority Having Jurisdiction) across the USA and Canada accept our UL-labeled products without additional field inspection.

Question 11

What voltage and frequency do your products support?

Accepted Answer

Our products are designed for North American electrical systems: 480V/600V, 3-phase, 60Hz. We also support 208V, 240V, and 480Y/277V configurations. All products are tested at rated voltage plus 10% overvoltage per UL standards. For dual-voltage applications (e.g., 480V/277V), we provide appropriate bus configurations and breaker ratings.

Question 12

What is the short circuit rating of your switchgear?

Accepted Answer

Our UL 891 switchgear supports short circuit ratings up to 200kA at 600V (with current-limiting breakers), and standard configurations include 65kA, 100kA, and 150kA ratings. The actual SCCR depends on the main breaker type and bus configuration. We provide a detailed short-circuit analysis for each project to ensure the selected configuration meets your facility's available fault current.

Question 13

What is the minimum order quantity (MOQ)?

Accepted Answer

For standard catalog products (switchboards, control panels, transformers), the MOQ is 1 unit. For custom OEM/ODM projects, MOQ depends on design complexity but typically starts at 5-10 units for the first production run. We work with both large-scale commercial projects and smaller custom orders. Sample orders (1-2 units) are available for evaluation purposes at a slightly higher unit cost, which can be credited toward a larger order.

Question 14

Do you offer volume discounts?

Accepted Answer

Yes. We offer tiered pricing based on order volume. Typical discount tiers: 10+ units (3-5% discount), 50+ units (5-8% discount), 100+ units (8-12% discount). For long-term project contracts or annual purchase agreements, we provide custom pricing. Contact us at projects@richespowertech.com for a detailed quotation based on your project volume.

Question 15

How do I request a quote?

Accepted Answer

Use our online inquiry form on the Contact page, or email us directly at projects@richespowertech.com. To receive an accurate quote, please include: (1) Project type and application, (2) Voltage and frequency requirements, (3) Main breaker size and SCCR requirement, (4) Number of units needed, (5) Required standards (UL 891/508A/CSA), (6) Target delivery date. We typically respond with a detailed quote within 24-48 hours.

Question 16

What payment terms do you accept?

Accepted Answer

Standard payment terms: 30% deposit by T/T (wire transfer) upon order confirmation, 70% balance before shipment. For established customers or large orders, we also accept L/C (Letter of Credit) at sight. For sample orders, we accept T/T 100% in advance. All payments are processed through our corporate bank account. We can provide bank reference letters and trade references upon request.

Question 17

Do you provide CAD drawings or technical datasheets before ordering?

Accepted Answer

Yes. We provide complete technical documentation during the quotation phase, including: general arrangement drawings (GA), single-line diagrams, bill of materials, and technical datasheets. For custom projects, we provide detailed engineering drawings for your review and approval before production begins. All drawings are available in DWG, DXF, and PDF formats.

Question 18

Can I order a sample or prototype before placing a bulk order?

Accepted Answer

Yes. We strongly encourage sample orders for custom projects. A prototype unit is built to verify design, fit, and function before full production. Sample lead time is typically 4-6 weeks. The sample cost is higher than bulk pricing, but the difference is credited toward your first bulk order. We also offer virtual factory inspections via video call for customers who cannot travel.

Question 19

What is your typical lead time for standard products?

Accepted Answer

Standard catalog products: 4-6 weeks production time after order confirmation and deposit receipt. This includes incoming material inspection, assembly, in-process quality checks, final testing, and UL labeling. Shipping time is additional (see Shipping & Logistics section). For repeat orders of previously configured products, lead time can be reduced to 3-4 weeks.

Question 20

What is the lead time for custom OEM/ODM products?

Accepted Answer

Custom OEM/ODM products typically require 8-12 weeks production time, broken down as follows: (1) Engineering design and review: 2-3 weeks, (2) Component procurement: 2-4 weeks, (3) Assembly and testing: 3-4 weeks, (4) UL inspection and labeling: 1 week. Complex projects with high customization may require up to 14 weeks. We provide a detailed production schedule with milestone dates upon order confirmation.

Question 21

Do you offer rush orders or expedited production?

Accepted Answer

Yes. For urgent projects, we offer expedited production with a 2-3 week turnaround for standard products and 5-7 weeks for custom products. Rush orders incur an additional fee of 15-25% depending on complexity and current production load. Expedited production is subject to material availability and UL inspection scheduling. Contact us early to discuss your timeline requirements.

Question 22

How do you handle production delays or supply chain issues?

Accepted Answer

We maintain strategic inventory of critical components (bus bars, enclosures, standard breakers) to minimize supply chain disruptions. If a component has an extended lead time, we proactively notify the customer and offer alternatives: (1) Substitute with an equivalent UL-listed component, (2) Adjust delivery schedule, (3) Partial shipment of completed units. Our procurement team monitors global supply conditions weekly and maintains relationships with multiple component suppliers.

Question 23

Can I track my order production progress?

Accepted Answer

Yes. We provide regular production updates including: (1) Order confirmation with production schedule, (2) Weekly progress reports with photos, (3) Pre-shipment inspection photos and test reports. For large projects, we can arrange live video inspections during key production milestones. Our project managers are available via email and WhatsApp for real-time updates.

Question 24

How do you ship products to North America?

Accepted Answer

We ship via ocean freight in seaworthy wooden crates with moisture-proof wrapping, shock-absorbing padding, and steel banding. Shipping methods include: (1) FCL (Full Container Load) — 20ft or 40ft containers for large orders, (2) LCL (Less than Container Load) — for smaller orders sharing container space. Standard delivery time is 4-6 weeks from port of departure (Yantian/Nansha, Shenzhen) to major North American ports: Los Angeles, Long Beach, Vancouver, Houston, New York, Savannah, and Chicago.

Question 25

What Incoterms do you offer?

Accepted Answer

We support the following Incoterms 2020: (1) EXW (Ex Works) — buyer arranges all shipping from our factory, (2) FOB (Free on Board) — we deliver to the port of departure, buyer handles ocean freight, (3) CIF (Cost, Insurance & Freight) — we handle shipping and insurance to the destination port, (4) DDP (Delivered Duty Paid) — we handle everything including customs clearance and delivery to your site. CIF and DDP are our most popular options for North American customers.

Question 26

Do you handle customs clearance for North American imports?

Accepted Answer

We provide all required documentation for customs clearance but do not act as the importer of record. We recommend working with a licensed customs broker in your country. We provide: (1) Commercial invoice, (2) Packing list, (3) Bill of lading (B/L), (4) Certificate of origin, (5) HS codes for all products, (6) UL certification documents, (7) Any additional documentation required by your broker. For DDP shipments, we work with our logistics partner to handle all customs formalities.

Question 27

What are the HS codes for your products?

Accepted Answer

Common HS codes for our products: (1) Switchboards: 8537.10 (Electrical boards, panels for voltage ≤ 1000V), (2) Control panels: 8537.10 (same category), (3) Transformers: 8504.21-8504.23 (depending on kVA rating), (4) Generators: 8501.52-8501.53 (depending on kW rating), (5) Substations: 8537.10. These codes are used for customs classification and duty calculation. We provide the exact HS code for each product in the commercial invoice.

Question 28

What is the estimated shipping cost to North America?

Accepted Answer

Shipping costs vary based on volume, weight, and destination port. As a rough guide: (1) A single switchboard (approx. 2-3 CBM) in an LCL shipment: USD 200-500 per CBM, (2) A 20ft FCL container: USD 2,500-4,500 to West Coast, USD 4,000-6,500 to East Coast, (3) A 40ft FCL container: USD 3,500-6,000 to West Coast, USD 5,500-8,500 to East Coast. These are indicative rates and fluctuate with market conditions. We provide exact shipping quotes with each proposal.

Question 29

How do you package products for ocean freight?

Accepted Answer

All products are packaged for safe ocean transit: (1) Inner protection: moisture-proof PE wrapping and foam padding, (2) Structural protection: fumigation-free plywood crates (ISPM-15 compliant for international shipping), (3) Securing: steel banding and bolt anchoring inside the crate, (4) Labeling: clear markings for product name, weight, dimensions, handling instructions, and destination. Each crate includes a packing list on the exterior. Fragile components are individually wrapped and secured.

Question 30

Do you provide installation support in North America?

Accepted Answer

We provide comprehensive installation documentation including: (1) Wiring diagrams and connection schedules, (2) Commissioning procedures and checklists, (3) Operation and maintenance manuals, (4) Troubleshooting guides. For large projects, we offer: (1) Remote technical support via video call during installation, (2) On-site engineer dispatch (travel costs apply, typically USD 300-500/day plus expenses), (3) Training sessions for your electrical team. Contact us at projects@richespowertech.com to discuss your project needs.

Question 31

What warranty do you offer?

Accepted Answer

We offer a standard 2-year warranty from date of shipment, covering manufacturing defects and material failures. Extended warranty options are available: 3-year (5% of product value) and 5-year (8% of product value). Warranty claims are processed within 48 hours. For defective components, we ship replacement parts via express courier (DHL/FedEx) at no charge. For major defects, we can arrange on-site repair or full unit replacement.

Question 32

How do I request technical support?

Accepted Answer

Contact our technical support team: (1) Email: projects@richespowertech.com — for non-urgent inquiries, we respond within 24 hours, (2) WhatsApp: +86-13927323746 — for urgent issues, fastest response time, typically within 2-4 hours during business hours (GMT+8, Mon-Sat 8:00-18:00), (3) Online inquiry form on our Contact page. For warranty claims, please provide: product serial number, description of the issue, photos or videos if possible, and date of installation.

Question 33

Can I visit your factory?

Accepted Answer

Yes. We welcome factory visits and can arrange: (1) Virtual tours via video call — available immediately, (2) In-person visits — we arrange airport pickup from Shenzhen Bao'an International Airport (SZX) or Guangzhou Baiyun International Airport (CAN), hotel accommodation assistance, and a full factory tour including production lines, testing lab, and warehouse. Contact us at projects@richespowertech.com to schedule a visit. Please provide at least 5 business days notice.

Question 34

Do you offer custom OEM/ODM electrical panels?

Accepted Answer

Yes. We have an in-house R&D team of 30+ engineers who can design custom control panels from concept to UL-listed production. Our OEM/ODM service includes: (1) Schematic design and engineering review, (2) Component selection and sourcing, (3) UL engineering evaluation, (4) Prototype building and testing, (5) Full production with UL labeling. Typical lead time is 8-12 weeks for custom designs. We hold UL factory inspection authority, so all custom designs are reviewed and approved by UL before production.

Question 35

Can you match existing designs or replace competitor products?

Accepted Answer

Yes. We regularly help customers transition from other manufacturers. Provide us with: (1) Existing product drawings or datasheets, (2) Bill of materials, (3) UL file numbers of the current product. Our engineering team will design an equivalent or improved solution that meets the same UL standards. We can also reverse-engineer from physical samples if drawings are not available. The transition typically takes 6-10 weeks including UL evaluation.

Frequently Asked Questions

Buying from China

UL Certification & Compliance

MOQ & Ordering

Lead Time & Production

Shipping & Logistics

Warranty & Support

OEM/ODM & Customization

Still Have Questions?

Quick Reference — RICHES POWERTECH® at a Glance