Square D HLA36070 70A 3-Pole 600V I-Line Plug-In Circuit Breaker
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The Square D HLA36070 is a 3-pole, 70-amp thermal magnetic molded case circuit breaker (MCCB) rated for 600VAC systems with I-Line plug-in mounting. Part of the Schneider Electric HL series, it is engineered for reliable overcurrent protection in industrial and commercial three-phase distribution panels. The I-Line plug-in design allows fast, tool-free installation into compatible Square D I-Line panelboards.
Specifications
| Attribute | Value |
|---|---|
| Part Number | HLA36070 |
| Manufacturer | Square D / Schneider Electric |
| Amperage Rating | 70A |
| Voltage Rating | 600VAC |
| Number of Poles | 3 |
| Trip Type | Thermal Magnetic |
| Mount Type | I-Line Plug-In |
| Interrupting Rating | 65kA @ 240V / 25kA @ 600V |
| Standard | UL 489 Listed |
| Frame Series | HL |
Key Features
- I-Line plug-in mounting for quick installation and removal in Square D I-Line panelboards
- Thermal magnetic trip for precise overload and instantaneous short-circuit protection
- 3-pole design for balanced three-phase 600V distribution
- High interrupting capacity suitable for industrial environments
- UL 489 Listed for compliance with NEC requirements
- Compatible with Square D I-Line accessory kit options
Common Applications
- Industrial 600V three-phase distribution panels
- Motor feeder and branch circuit protection up to 70A
- Manufacturing plants and process equipment panels
- Commercial buildings with 600VAC service
- Oil and gas, mining, and utility distribution systems
Frequently Asked Questions
What is the Square D HLA36070 circuit breaker?
The Square D HLA36070 is a 70-amp, 3-pole, 600V I-Line plug-in thermal magnetic molded case circuit breaker used for overcurrent and short-circuit protection in industrial and commercial three-phase 600V power distribution systems.
What panelboards are compatible with the HLA36070?
The HLA36070 uses I-Line plug-in mounting and is compatible with Square D I-Line panelboards and switchboards designed to accept HL-frame breakers. Always verify frame size and bus compatibility before installation.
What is the interrupting rating of the Square D HLA36070?
The HLA36070 has an interrupting rating of 65kA at 240V and 25kA at 600V, suitable for demanding industrial power distribution applications.