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Transparent GE CR305 magnetic contactor with visible internal components

GE

GE CR305C002 120VAC Non-Reversing Magnetic Contactor 3P 27A NEMA 1 video accessory

SKU CH-ZCA1-YQGG1

A three-pole NEMA 1 magnetic contactor rated 27 A at 120 VAC with 1NO auxiliary contact

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • 3-pole design handles three-phase motor loads
  • 27 A inductive rating supports up to 10 hp at 480 V and 600 V
  • 120 V AC coil voltage suits standard control circuits
  • NEMA Size 1 frame fits compact panel layouts
  • One normally-open auxiliary contact simplifies control wiring

Industrial motor control

The GE CR305C002 is a NEMA Size 1 magnetic contactor built for three-phase motor circuits up to 27 A inductive load. It suits maintenance teams and panel builders who need a compact, non-reversing switch for pumps, compressors or conveyors. The 120 V AC coil allows direct connection to standard control transformers. A single normally-open auxiliary contact provides status feedback to a PLC or indicator light.

Cooling and power draw

The open-frame design relies on natural convection inside the enclosure, so no fan noise is generated during operation. Coil power consumption is limited to the 120 V AC control circuit, while the main poles carry up to 27 A continuously. The contactor is rated for 7-1/2 hp at 240 V AC and 10 hp at both 480 V AC and 600 V AC three-phase supplies.

Mounting and wiring space

Overall dimensions are 3.94 in high by 3.06 in wide, leaving room for dense DIN-rail or back-panel layouts. Screw terminals accept ring or fork lugs for secure power and control connections. The non-reversing configuration simplifies wiring for single-direction motors, while the 1NO auxiliary frees a PLC input for run verification without extra relays.

Highlights

  • 3-pole design handles three-phase motor loads
  • 27 A inductive rating supports up to 10 hp at 480 V and 600 V
  • 120 V AC coil voltage suits standard control circuits
  • NEMA Size 1 frame fits compact panel layouts
  • One normally-open auxiliary contact simplifies control wiring

Specifications

BrandGE
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

How do I wire the 120V AC coil and the three power poles on this NEMA Size 1 contactor?

Connect the 120V AC control supply to the coil terminals and the three-phase load to the three main poles rated for 27 A inductive current.

Which parts will need replacement after extended operation?

The coil and the main contact tips are the wear items; the single 1NO auxiliary contact may also require attention over time.

What thermal limit appears first when the contactor runs continuously at full load?

The 27 A inductive rating at the stated coil voltage is the primary sustained-use boundary for this NEMA Size 1 device.

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