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Siemens KM3B800 - 800A 3 Pole Molded Case Circuit Breaker

Brand Siemens
SKU KM3B800
Siemens KM3B800 3 Pole Circuit Breaker
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Siemens KM3B800 - 800A 3 Pole Molded Case Circuit Breaker

Brand Siemens
SKU KM3B800
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Siemens KM3B800 3 Pole Circuit Breaker

Siemens KM3B800 - 800A 3 Pole Molded Case Circuit Breaker

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$1450.00 In stock

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DescriptionSpecificationsSuperClubWarranties
Description
Engineered for industrial applications, the Siemens KM3B800 is a 3-pole, 800A molded case circuit breaker featuring an interchangeable thermal-magnetic trip unit. This bolt-on MCCB mounts into Siemens P4 and P5 panelboards, SB switchboards, and MCCs. It serves as a legacy solution, replaced by the HMD63B800 (adapter kit required). Rated for 600VAC, it delivers a 50kAIC interrupt capacity at 480V. Load side lugs are included for standard commercial installations.

Specifications

Brand Siemens
Series KM
Part Number KM3B800-R
Amperage 800A
Voltage 600VAC
Poles 3
Phase 3
AIC Rating 65kA @ 240VAC, 50kA @ 480VAC, 22kA @ 600VAC
Mounting Style Bolt-On
Terminal Type Lugs
For Use With Siemens P4, P5, S4, S5 Panelboards, SB1, SB2, SB3 Switchboards, Motor Control Centers
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Wire Gauge 3 Cables: 250-500 kcmil (Cu/Al) OR 2 Cables: 500-750 kcmil (Cu/Al)
Max Wire 750 kcmil
Min Wire 250 kcmil
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Load Side Lugs Included
Standards UL 489, CSA C22.2 No. 5
Approval CSA, UL
Temp Rating 40C
Construction Features Interchangeable Trip Unit, Trip-Free Mechanism, HACR Rated

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Warranties

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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.

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Shipping

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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.

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