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HYUNDAI Contactor UMC75
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Cross-Reference Brands
AC220V
Rated Insulation Voltage Ui V AC750
Rated Operational Voltage Ue V AC690
Rated impulse withstand current Uimp 8
Rated thermal current Ith (AC1) A 115
AC-3 200-240V kW/A 22/75
AC-3 380-440V kW/A 37/75
AC-3 500-550V kW/A 37/64
AC-3 660-690V kW/A 37/42
AC-3 (le) Lifetime Electrical x10,000 times 2,000
AC-3 Lifetime Mechanical x10,000 times 10,000
AC-4 200-240V A 13/55
AC-4 380-440V A 25/52
AC-4 Lifetime Electrical x10,000 times 30
Why Global Buyers Choose O&Kmarts
- Access to a wide range of SKUs across multiple brands and series
- One RFQ connects you to 5,000+ global supplier quotes
- Better availability for urgent and hard-to-find parts
- Faster global delivery via FedEx / DHL / UPS
- Easier access to rare and high-value models
- Flexible sourcing for individual parts or complete solutions
- Lower MOQs and more adaptable buying options
- Multi-brand procurement in one order
- OEM replacement and alternative model solutions available
- Fewer intermediaries, ensuring more competitive pricing
Why Global Buyers Choose O&Kmarts
- Limited to fast-moving SKUs only
- Limited local market availability
- Inventory frequently fails to meet urgent demand
- Long replenishment cycles, often taking weeks
- Rarely stock high-value compressors (e.g. Copeland YHV119)
- Frequently require bundled purchases
- Rigid and difficult MOQ negotiations
- Limited brand selection
- Minimal or no customization capability
- Higher local distribution and markup costs
Top Questions from OKmarts Buyers
Q: Are software licenses, firmware updates, and configuration files included with hardware like HMIs and PLCs?
A: Hardware units ship with standard factory-default firmware. For proprietary programming software or specific firmware flashes required for legacy system compatibility, buyers must consult our technical support team during procurement to confirm licensing terms.
Q: Can my organization create a dedicated corporate account with multi-user permissions for different procurement roles?
A: Yes. Our platform supports corporate account provisioning. A master account can be set up for a Procurement Director, with sub-accounts granted to field engineers (for creating technical carts) and purchasing agents (for executing payments), streamlining internal corporate approval workflows.
Q: What secure payment methods are supported for high-value international B2B transactions?
A: To ensure transaction security and accommodate standard corporate purchasing workflows, we support secure international Telegraphic Transfers (T/T Wire), major corporate Credit Cards, PayPal, and Letter of Credit (L/C) frameworks for large-scale procurement contracts.
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Q&A
Q: Is my personal information secure when shopping on your platform?
A: Absolutely! We take the security and privacy of your personal information seriously. Our platform utilizes advanced encryption and security measures to protect your data, ensuring a safe and secure shopping experience.
Q: Is there a replacement or compensation policy for damaged goods?
A: Yes, we have a comprehensive replacement and compensation policy for damaged goods. If you receive a damaged product, please contact our customer service team immediately, and we will arrange for a replacement or appropriate compensation.
Q: How can I track the logistics information of a product?
A: Once your order is shipped, you will receive a confirmation email with tracking information. You can use this information to track your order through the logistics provider's website.







