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Square D KAL36100-1021 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Square D
KAL36100-1021
Molded Case Circuit Breaker
Brand
Square D
SKU
KAL36100-1021
Quantity
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Square D KAL36100-1021 - 100A 3 Pole Molded Case Circuit Breaker
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Description
Designed for advanced control applications, the Square D KAL36100-1021 features a factory-installed 120VAC shunt trip for remote disconnect functionality. This 3-pole, 100A breaker provides essential thermal-magnetic protection. It fits into compatible Square D switchboards, enclosures, and motor control centers. For system upgrades, this legacy K-Frame model crosses over to the modern PowerPact H-Frame (HGL36100SA). Delivering 25 kAIC at 480VAC, it includes adjustable magnetic trip settings.Specifications
| Brand | Square D |
|---|---|
| Part Number | KAL36100-1021 |
| Series | KAL |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 25kA @ 480Y/277VAC, 25kA @ 480VAC, 22kA @ 600Y/347VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | K |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (120VAC) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
10 answersWhat does the -1021 suffix indicate on the KAL36100-1021?
The -1021 suffix designates a factory-installed 120/240VAC shunt trip. This accessory allows the breaker to be tripped remotely for emergency stops or automated control systems.
What is the modern replacement for the legacy Square D KAL36100-1021?
The KAL series is a legacy K-Frame breaker. For modern system upgrades, it crosses over to the Square D PowerPact H-Frame series, though dimensional and mounting differences may require panel modifications.
What equipment is compatible with the KAL36100-1021?
This unit-mount breaker is designed for use in compatible Square D enclosures, switchboards, and motor control centers. It is not compatible with I-Line panelboards, which require plug-on brackets.
Is the magnetic trip adjustable on the KAL36100-1021?
Yes, this thermal-magnetic breaker features a fixed thermal element for overload protection and an adjustable magnetic trip for short-circuit protection, allowing coordination with other devices in the system.
How is the KAL36100-1021 mounted in a system?
This is a unit-mount, feed-thru circuit breaker. It bolts directly to the mounting pan or chassis in switchboards and enclosures, rather than plugging onto a busbar.
How does the factory-installed shunt trip operate on this breaker?
The 120/240VAC shunt trip allows the breaker to be tripped remotely by applying a voltage signal to the accessory coil. This is commonly used for emergency stop circuits or automated safety shutdowns.
Can the KAL36100-1021 be used in DC applications?
Yes, this breaker is rated for up to 250VDC with an interrupting capacity of 10kA, making it suitable for specific industrial DC control and distribution circuits.
Does this breaker include a push-to-trip feature?
Yes, Square D molded case circuit breakers include a push-to-trip button on the faceplate. This allows electricians to manually trip the breaker to verify the mechanical operation without exposing personnel to live parts.
What does the LI trip function code indicate on this breaker?
The LI designation means the thermal-magnetic trip unit provides Long-Time (L) protection for overloads and Instantaneous (I) protection for short circuits.
What wire materials are approved for the factory lugs on the KAL36100-1021?
The standard feed-thru lugs are dual-rated for both copper (Cu) and aluminum (Al) conductors, accepting wire sizes from 4 AWG up to 350 kcmil.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 3 reviews.
Total 5 star reviews: 3 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
3 reviews
- GGGavin G.ReviewingSquare D KAL36110 - 110A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/9/23Great service
Needed this breaker asap and they helped me get it quickly and they were very helpful.
- JJamesReviewingSquare D KAL36250 - 250A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/25/18Lightning Fast Turn Around
Thanks to SuperBreakers we were able to get the part we needed, and get back online.
- GRGreg R.ReviewingSquare D KAL26200 - 200A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/29/18Excellent Service
The breaker we ordered was needed to get one of or machines back up and running. We ordered it next day air and it arrived right on time.
Thank you,