Description
The Square D KH36250 is a 250 Amp, 3-pole molded case circuit breaker designed for three-phase electrical systems. It provides reliable thermal-magnetic protection for circuits up to 600 VAC or 250 VDC. This I-Line style plug-in breaker is suitable for industrial and commercial panelboards and switchboards.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Breaker |
| Part Number |
KH36250 |
| Subcategory |
Molded Case Circuit Breaker |
| Series |
KH |
| Poles |
3 |
| Current Rating |
250 Amp |
| Voltage Rating |
240VAC, 480VAC, 600VAC, 250VDC |
| Phase |
Three-Phase |
| Trip Type |
Thermal-Magnetic |
| Trip Function |
Long-Time, Instantaneous |
| Trip Adjustability |
Fixed Thermal, Adjustable Magnetic |
| Mounting Type |
I-Line Plug-In |
| Terminal Type |
Lugs |
| Wire Range |
4 AWG – 350 kcmil |
| Interrupting Rating |
65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Optional Features |
Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
| Standards |
CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approvals |
CE, CSA, UL |
| Operating Temperature |
40°C |
| Construction Features |
HACR Rated, High Interrupting Capacity |
| Weight |
12 lbs |
Information About KH36250
The KH36250 is part of Square D’s KH series of circuit breakers, built for high-current industrial applications. It features thermal-magnetic trip technology with long-time and instantaneous (LI) functions. The breaker supports wire sizes from 4 AWG to 350 kcmil for both aluminum and copper conductors. Optional features include shunt trip, auxiliary switch, undervoltage release, and alarm switch for flexible installation and enhanced safety.
Key Features:
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Series: KH Series molded case breaker for industrial use.
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Poles: 3-pole configuration for three-phase systems.
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Current Rating: 250 Amp continuous load capacity.
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Voltage Rating: 240VAC, 480VAC, 600VAC, 250VDC compatible.
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Mounting Style: I-Line plug-in for secure panelboard installation.
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Trip Mechanism: Thermal-magnetic with long-time and instantaneous (LI) protection.
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Interrupting Capacity: 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC.
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Wire Range: 4 AWG – 350 kcmil (Al/Cu).
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Optional Features: Shunt trip, auxiliary switch, undervoltage release, alarm switch.
The KH36250 delivers the reliability and precision required for high-current industrial circuit protection.
