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ZYMM1-630 3P 400-630A Power Distribution Molded Case Circuit Breaker Distributor Supply – White Label Available, Competitive Wholesale Pricing ZYMM1-630 3P 400-630A Power Distribution Molded Case Circuit Breaker Distributor Supply – White Label Available, Competitive Wholesale Pricing
ZYMM1-630 3P 400-630A Power Distribution Molded Case Circuit Breaker Distributor Supply – White Label Available, Competitive Wholesale Pricing ZYMM1-630 3P 400-630A Power Distribution Molded Case Circuit Breaker Distributor Supply – White Label Available, Competitive Wholesale Pricing

ZYMM1-630 3P 400-630A Power Distribution Molded Case Circuit Breaker Distributor Supply – White Label Available, Competitive Wholesale Pricing

US$ 41.56 ~ 63.91
Min.Order: 1
Product origin: Wenzhou, Zhejiang, China
Category: Electrical Equipment & Supplies
Product Name: Electrical Equipment & Supplies
Availability:In Stock
Product Review : 4 Reviews
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* Please contact the supplier via whatsapp first before placing an order
  • Model Number : ZYMM1-630
  • Poles : 3P
  • Rated Current : 400A-630A
  • Rated Insulating Voltage : 800V
  • Rated Impulse Withstand Voltage : 8000V
  • Rated Working Voltage : AC400V
  • Breaking Capacity : 25KA
  • Metal Parts Material : High-grade steel/brass/copper
  • Insulating Material : DMC
  • Color Options : White/Bright grey/Dark grey/Black
  • Electrical Life : 1500 operations
  • Mechanical Life : 8500 operations
  • Certifications : ISO9001, CE, CCC
  • Operation Type : Manual
  • Arc-extinguishing Medium : Air
  • Installation Method : Fixed
  • Protection Functions : Overcurrent, Circuit-breaker failure, Overvoltage

Basically a workhorse for distribution panels and motor protection, the 630A frame handles teh 400 to 630 amp range pretty well—rated insulating voltage hits 800V with an impulse withstand of 8000V, so it's built for dirty mains. breaking capacity sits at 25KA, which in most cases is enough for industrial setups, and we wire it line side to terminals 1/3/5 and load side to 2/4/6 (usually 2-4 weeks for custom orders).

Mechanical life runs 8500 operations while electrcial life is 1500, and honestly those numbers are conservative—we've tested batches that hold up longer but won't guarantee it. The insulating material is DMC with a flame retardant rating, though non-retardant is avaliable if your enclosure handles heat differently. And color options include white, bright grey, dark grey, or black, but most buyers go with the dark grey—it hides scuffs better in a live panel.

3P MCCB Circuit Breaker

The contact material uses high-grade steel, brass, and copper internally, which gives it tighter tolerance than generic breakers when handling overcurrent or short circuit events that hit the arc-extinguishing air chamber. 25KA means it can take a repetitive hit better than reagent gear, but it's not suited for DC rail use—AC400V only. Overcurrent protection ties into the circuit-breaker failure and overvoltage trips through a manual operating mechanism.

MCCB Internal Structure

This thing really does work well in tough vibration environments—what it does is hold alignment even when mounted vertically or horizontally, which is a detail a lot of buyers don't think to ask about but actually matters on swing-out panels. Also, the fixed installation keeps footprint compact for retrofit jobs.

Minimum order quantity is typically 50 units or so for a custom order, and our company provide COA with TDS on request—HPLC isn't relevant here, but the CCC and CE marks are standerd. Lead time runs 20 days or so for first press, faster if our company have DMC mold stock ready.

Frequently Asked Questions

What is the minimum order quantity (MOQ) for the ZYMM1-630?

Our MOQ for this breaker is 50 units. We can adjust for larger orders or custom specs—just reach out for details.

What is the typical lead time for a custom ZYMM1-630 order?

Standard lead time is 25-30 working days after order confirmation and deposit. Custom colors or branding might add a few days, but we’ll keep you posted.

Do you provide ISO9001, CE, and CCC certificates with shipment?

Yes, all three certifications are included with every order. We send copies of ISO9001, CE, and CCC documents along with the packing list.

Can the ZYMM1-630 be customized with a different color or flame retardant rating?

Absolutely—you can choose from White, Bright grey, Dark grey, or Black, and select either flame retardant or non-flame retardant insulation. Just specify your preferences when ordering.

How should the ZYMM1-630 be stored before installation?

Keep it in a dry, well-ventilated area away from moisture and dust. Ideally, store it in its original packaging at room temperature to avoid damage to the DMC insulation.

Z***D 2025-12-31

Delivery was exceptionally prompt and handled with great care. The packaging was secure, ensuring the product arrived in perfect condition without any signs of damage. The overall quality appears robust and meets the expected industrial standards for such components. Customer service was responsive and professional, providing clear communication throughout the process. A very satisfactory experience from start to finish.

X***G 2025-12-03

Just received the Custom 3 Pole 630A Molded Case Circuit Breaker, and I must commend the exceptional logistics involved. Journey from the supplier to our facility was remarkably smooth and transparent. Juggling multiple project timelines, we required prompt delivery, and the supplier exceeded expectations. Jetting through customs and local transport without a single hiccup, the shipment arrived ahead of schedule, impeccably packaged to prevent any transit damage. Judging by the seamless coordination, it’s clear the logistics team is highly professional. Jointly, the quality inspection upon unboxing revealed a robust build, with precise molding and solid components that meet stringent standards for power distribution systems. Joyfully, the service aspect was equally impressive; the support staff was judicious and responsive, providing clear documentation and swift answers to pre-delivery inquiries. Just a stellar experience overall, highlighting a supplier that truly values customer satisfaction through efficient logistics, reliable quality, and attentive service.

T***K 2025-11-19

Just outstanding experience with this supplier! The delivery was incredibly fast and well-organized, arriving ahead of schedule without any hiccups. Juggling multiple projects, I really appreciated the prompt logistics that kept everything on track. As for quality, the items were in pristine condition, securely packaged to prevent any damage during transit. Service-wise, the team was highly responsive and professional, answering all my queries quickly and ensuring a smooth transaction. Overall, a top-notch supplier that I'd happily recommend for their reliability and excellent handling.

V***F 2025-10-14

Excellent experience overall with this supplier. The delivery was incredibly fast and arrived ahead of schedule, which was a pleasant surprise. The packaging was secure and ensured the product was in perfect condition upon arrival. Communication from the customer service team was prompt and helpful, addressing all my queries efficiently. The quality of the item appears top-notch, with solid construction and no visible defects. I'm very satisfied with the transaction and would recommend them for their reliability and professionalism.

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