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Square D KCP34150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Bolt-On
Square D
KCP34150
Molded Case Circuit Breaker
Brand
Square D
SKU
KCP34150
Quantity
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Square D KCP34150 - 150A 3 Pole Molded Case Circuit Breaker
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150A 3 Pole Molded Case Circuit Breaker
150A 3 Pole Molded Case Circuit Breaker
150A 3 Pole Molded Case Circuit Breaker
Description
Built for commercial and industrial applications, the Square D KCP34150 is a 3-pole, 150A molded case circuit breaker from the legacy K-Frame family. It provides reliable thermal-magnetic protection with fixed thermal and adjustable magnetic trip settings. This bolt-on MCCB installs into Square D I-Line panelboards to secure critical electrical distribution systems. For modern upgrades, this unit is replaced by the PowerPact HJA36150.Specifications
| Brand | Square D |
|---|---|
| Part Number | KCP34150 |
| Series | KCP |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC |
| Frame Type | KCL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40°C |
| Construction Features | HACR Rated, Extra High Interrupting Capacity |
Product FAQs
5 answersWhat panelboards are compatible with the KCP34150 circuit breaker?
The KCP34150 is designed for installation in Square D I-Line panelboards and utilizes a bolt-on connection to secure the breaker within the switchgear.
How is the trip unit configured on the KCP34150?
This breaker features a thermal-magnetic trip unit providing long-time and instantaneous (LI) protection. The thermal element is fixed, while the magnetic trip setting is adjustable to coordinate with specific fault current requirements.
What wire gauge is supported by the KCP34150 lugs?
The standard line and load lugs on this breaker accept either copper or aluminum conductors ranging from 4 AWG to 350 kcmil.
What is the modern replacement for the legacy KCP34150?
The KCP34150 is part of the legacy K-Frame series. For modern replacements, Square D crosses this to the PowerPact H-Frame series, specifically the HJA36150. Always verify your panel mounting requirements before upgrading.
Is the Square D KCP34150 HACR rated?
Yes, this breaker is HACR rated, making it suitable for use with commercial heating, air conditioning, and refrigeration equipment.
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