Square D IK36150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- I-Line
Quantity
Square D IK36150 - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for industrial power systems, this 150-amp current-limiting MCCB offers reliable long-time and instantaneous trip functions. The rugged K-Frame construction ensures dependable performance in high-demand electrical environments. Designed exclusively for Square D I-Line panelboards, the plug-on design allows for quick and secure installation. While this legacy model is widely used, it has been replaced in newer systems by the JRA36150.Specifications
| Brand | Square D |
|---|---|
| Part Number | IK36150-R |
| Series | IK |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC, 100kA @ 600VAC |
| Frame Type | IK |
|---|---|
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip, Common Trip, Trip-Free Mechanism |
| Special Features | Current Limiting |
Product FAQs
7 answersWhat panelboards are compatible with the IK36150 circuit breaker?
The IK36150 is designed exclusively for Square D I-Line panelboards and switchboards. It utilizes a plug-on connection that mounts directly to the I-Line bus assembly.
How much mounting space does this 3-pole K-frame breaker require in an I-Line panelboard?
The IK36150 requires 4.5 inches of mounting space on the I-Line bus. Square D K-frame breakers measure 1.5 inches per pole.
What does the "Current Limiting" designation mean for the IK36150?
As a current limiting breaker, the IK36150 is designed to clear high-level short circuits in less than half a cycle. This rapid response restricts the peak let-through current and energy, providing enhanced protection for downstream equipment.
Is the IK36150 still in active production, or is there a modern replacement?
The IK frame is a legacy K-frame circuit breaker. For modern panelboards, Square D has superseded the K-frame series with the PowerPact J-frame series, such as the JRA36150.
What is the magnetic trip adjustment range for the IK36150?
For this 150A K-frame thermal-magnetic breaker, the adjustable AC magnetic trip settings range from a low of 750A to a high of 1500A.
Does the IK36150 require a separate mounting hardware kit for installation?
No. I-Line breakers feature built-in plug-on jaws that connect directly to the panelboard bus. This eliminates the need for separate mounting hardware or cable connections on the line side.
Does the IK36150 feature a push-to-trip mechanism?
Yes. It includes a push-to-trip button on the faceplate. This allows electricians to manually trip the breaker to verify the mechanical operation of the trip mechanism and auxiliary devices.
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