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400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection 400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection
400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection 400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection
400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection 400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection
400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection 400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection
400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection 400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection
400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection 400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection

400V/415V 3P/4P Fixed Type MCCB Circuit Breaker for Overcurrent Protection

US$ 27.00 ~ 29.00
Min.Order: 1,000
Product origin: Shanghai, China
Category: Electrical Equipment & Supplies
Product Name: Electrical Equipment & Supplies
Availability:In Stock
Product Review : 2 Reviews
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* Please contact the supplier via whatsapp first before placing an order
  • Model Number : DAM1-250
  • Rated Current : 63-250A
  • Poles : 3P/4P
  • Rated Voltage : 400/415V AC
  • Breaking Capacity : 35kA/65kA/85kA
  • Insulation Voltage : 750V
  • Impulse Withstand : 8000V
  • Trip Mechanism : Thermal-Magnetic
  • Electrical Life : 1000 cycles
  • Mechanical Life : 7000 cycles
  • Standards : EN 60947-1, EN 60947-2
  • Dimensions (3P) : 170×105×103.5mm
  • Weight (3P) : 2.7kg
  • Arc Extinction : Arc Chamber Design
  • Terminal Type : Screw Connection
  • Ambient Temperature : -5°C to +40°C
  • Storage Temperature : -25°C to +70°C
  • Relative Humidity : ≤95% (at +40°C)
  • Altitude : ≤2000m

It's the DAM1-250 frame size, so you're looking at 63 to 250 amps in either 3-pole or 4-pole configuration—pretty much covers most distribution panels for commercial or light indutrial work.

DAM1 circuit breaker front view

Breaking capacity runs 35kA, 65kA, or 85kA depending on what you need for fault levels, and with 750V insulation rating plus 8000V impulse withstand, it's built for 400/415V systems. The thermal-magnetic trip is standard—bimetal for overloads, magnetic coil for short circuits—and most buyers just go with the 65kA version unless they've got high fault current sites. Arc chamber does its job well enough that we rarely see failures on properly sized installs, though electrcial life is only 1000 cycles, so it's not something you'd want cycling daily on a welding line or something.

DAM1 breaker internal mechanism

Dimensions on the 3P are 170×105×103.5mm, about 2.7kg, so it's manageable to handle but not tiny. Mechanical life is 7000 cycles give or take, which is fine for a fixed-type breaker that mostly sits closed.

One thing—the temperature range is -5°C to +40°C ambient, so it's not suited for unheated outdoor cabinets in freezing climates unless you derate it or add cabinet heaters. We usually have stock on teh 63A and 125A frames, but the 250A can take 20 days or so (check lead time), especially if you need 4-pole with 85kA.

DAM1 breaker side view

Screw terminals on both line and load sides, so you'll need proper torque tools for insallation, and it come packed individually in boxes of 2 or 4 depending on order. COA with every batch—HPLC isn't needed here but the standdard test data covers insulation resistance and trip curve verification. For delivery, bare minimum is about 50 units or so for us to ship same week.

Frequently Asked Questions

What is the minimum order quantity for the DAM1-250 MCCB?

Our MOQ for the DAM1-250 is 10 units for standard ratings, though we can discuss lower quantities for sample orders or first-time buyers.

What's the typical lead time for a batch of 50 units?

Standard lead time is around 15-20 working days after order confirmation, depending on current production load and rating availability.

Does this MCCB come with EN 60947-1 and EN 60947-2 certification documents?

Yes, we provide test reports and certificates for both EN 60947-1 and EN 60947-2 standards upon request. They are included with each shipment.

Can I get the DAM1-250 with 85kA breaking capacity for all current ratings from 63A to 250A?

The 85kA breaking capacity is available for higher ratings typically above 100A. Lower ratings like 63A or 80A usually come with 35kA or 65kA, but we can check feasibility for your specific need.

How should I store these breakers if I buy in bulk but don't install them right away?

Store them in a dry, indoor area between -25°C and +70°C, with humidity below 95% at 40°C. Keep them in original packaging to avoid dust and moisture buildup on the terminals.

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