NEW Summer 2026 SuperGear! SuperPoints Accepted »

Siemens CND63B120 - 1200A 3 Pole Molded Case Circuit Breaker

Brand Siemens
SKU CND63B120
Siemens CND63B120 3 Pole Circuit Breaker
Free Shipping Over $99

Siemens CND63B120 - 1200A 3 Pole Molded Case Circuit Breaker

Brand Siemens
SKU CND63B120
Select Item Condition
Earn 10440 SuperPoints

Quantity
Planning a Big Order?
Bulk pricing available—let us know your needs for a quote.
Get a quote
Shop with Confidence
Enjoy a free 60-day warranty, extendable to 1 year at checkout.
Learn more
Siemens CND63B120 3 Pole Circuit Breaker

Siemens CND63B120 - 1200A 3 Pole Molded Case Circuit Breaker

New

$10440.00 In stock

Quantity

DescriptionSpecificationsSuperClubWarranties
Description
Engineered for heavy-duty commercial use, the CND63B120 is a 1200A thermal-magnetic MCCB from the Sentron ND Frame family. It provides fixed thermal and adjustable magnetic trip settings for LI fault protection. Designed for unit-mount installations, this breaker fits into Siemens S4, S5, P4, and P5 panelboards, plus SB-series switchboards. It requires separate lug kits for up to four 250-500 kcmil cables per phase. With a 100 kAIC rating at 480V, this fuseless breaker is HACR rated.

Specifications

Brand Siemens
Series CND6
Part Number CND63B120
Amperage 1200A
Voltage 240VAC, 480VAC, 600VAC, 500VDC
Poles 3
Phase 3
AIC Rating 200kA @ 240VAC, 100kA @ 480VAC, 65kA @ 600VAC, 50kA @ 500VDC
Mounting Style Unit Mount
Terminal Type Lugs
For Use With Siemens Sentron Panelboards (S4, S5, P4, P5), Switchboards (SB1, SB2, SB3), Motor Control Centers
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Wire Gauge (4) 250-500 kcmil (Cu/Al)
Max Wire 500 kcmil
Min Wire 250 kcmil
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits
Accessories Lugs Not Included
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, UL
Temp Rating 40C
Construction Features Current Limiting, HACR Rated, Non-Interchangeable Trip

SuperClub

Get rewarded every time you shop! Join SuperClub for free and start earning points on every purchase, unlocking exclusive discounts, special promos, and VIP perks. Already a member? Keep shopping to level up your rewards and enjoy even more benefits, including faster shipping, extended returns, and premium offers.

Learn more about SuperClub

Warranties

We’ve got you covered!

When shopping with SuperBreakers, you’ll have peace of mind knowing that every single item you purchase includes a 60 day warranty, free of charge. Why such confidence? Because only the highest quality electrical parts have a place on our shelves, and we stand by every single one we sell.

If anything goes wrong with your item that is not a result of misuse or normal wear and tear, we’ll gladly replace it at no cost to you.

Click here to read our full warranty details

Shipping

Free Shipping Policy

Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

Click here to read our full shipping policy
Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.

Related Products

Recently Viewed