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Grey metal surge protection enclosure 5.59in deep

SQUARE D

SQUARE D HL4IMA24C Surge Protection Device 3 Phase 277/480V AC 3 Poles 4 60A 5.59in NEMA 2

SKU CH-FC81-BSWGA

Three-phase surge protection device rated 277/480 V AC with 60 A capacity in a 5.59 in deep NEMA 2 enclosure

  • TypePower Quality & Distribution
  • 3-phase 277/480 V AC protection for industrial power systems
  • 60 A rating handles high-current surge events reliably
  • NEMA 2 enclosure shields components from dust and dripping water
  • Compact 5.59 in depth fits tight panel spaces
  • California Prop 65 notice informs safe handling and compliance

Surge Protection for 3-Phase Systems

The SQUARE D HL4IMA24C is a surge protection device built for 277/480V AC three-phase power. It uses a three-pole, four-wire configuration rated at 60 A to divert transient voltage away from downstream equipment. Industrial facilities and commercial buildings with this service voltage can install it at panelboards or distribution points.

Metallic Enclosure and NEMA 2 Rating

The unit ships in a gray metallic enclosure carrying a NEMA 2 rating, which provides protection against dripping and light splashing of non-corrosive liquids. This construction suits indoor locations where moisture may be present but heavy wash-down or outdoor exposure is not expected. The housing also shields internal components from incidental contact.

Compact Depth for Panel Integration

At 5.59 in deep, the device fits within standard panelboard depths without requiring extra clearance. The 60 A rating matches common branch-circuit sizes, so the SPD can be wired directly into existing buswork or breaker positions. Installers should verify available space and coordinate overcurrent protection per local codes.

Highlights

  • 3-phase 277/480 V AC protection for industrial power systems
  • 60 A rating handles high-current surge events reliably
  • NEMA 2 enclosure shields components from dust and dripping water
  • Compact 5.59 in depth fits tight panel spaces
  • California Prop 65 notice informs safe handling and compliance

Specifications

BrandSQUARE D
TypePower Quality & Distribution

Questions about this item

Will the internal surge modules need periodic replacement after repeated hits?

The unit uses replaceable surge modules that can be swapped without rewiring the 3-phase 277/480 V feed, letting you restore full protection after a major event.

What limits continuous operation at the 60 A rating?

The 60 A per-pole rating and NEMA 2 enclosure define the steady-state thermal limit; sustained loads at that level rely on the metallic housing to dissipate heat without forced airflow.

How much heat and noise does the device produce when energised all day?

With no moving parts the device runs silently; heat rise is limited to normal conduction through the 5.59 in deep metallic enclosure under the rated 60 A load.

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