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Transparent GE auxiliary contact block CR305X100C with side-mount terminals

GE

GE CR305X100C Auxiliary Contact Block 10 A 250 V DC 600 V AC

SKU CH-RT86-0J3ZD

Side-mount auxiliary contact block adds one normally-open and one normally-closed contact rated at 10 A, 600 V AC or 250 V DC for GE 300-Line contactors and starters

  • Product typeIndustrial Electrical Controls & Automation
  • Product colorTransparent
  • Adds two circuits with 1 NO and 1 NC contacts
  • Handles 10 A at 250 V DC and 600 V AC
  • Mounts on the side of 300-Line contactors
  • Fits NEMA size 0, 00 and 1 starters
  • Transparent housing allows visual contact inspection

Industrial Auxiliary Contact Block

The GE CR305X100C is an auxiliary contact block designed for industrial electrical control panels. It provides one normally open and one normally closed contact rated at 10 A for switching auxiliary circuits. This component suits electricians and panel builders expanding the control logic of compatible motor starters or contactors. It mounts on the side of Series 300-Line devices for NEMA Size 0, 00, and 1 applications.

Transparent Housing and Side Mounting

The transparent housing allows visual confirmation of contact status during commissioning and maintenance. Side mounting keeps the control panel layout compact while securing the block to the host contactor or starter. With a 10 A AC current rating and maximum voltage ratings of 250 V DC and 600 V AC, the block handles standard industrial control circuit loads without additional cooling considerations. Power draw is negligible for the control circuit itself.

1NO/1NC Contact Configuration

The single specification that decides fit is the 1NO/1NC contact arrangement, which delivers one make and one break circuit per block. Buyers needing multiple isolated circuits per mounting position or a different contact combination cannot use this unit. Compatibility is limited to GE Series 300-Line contactors and starters in NEMA Size 0, 00, and 1; other series or larger NEMA sizes are not supported.

How it compares

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Price $59.99
Pricier than about 61% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameGE
Product typeIndustrial Electrical Controls & Automation
Product colorTransparent

Questions about this item

How do I mount the GE CR305X100C auxiliary contact block onto a Series 300-line contactor and what step is often missed?

Snap the block onto the side of a compatible Series 300-line contactor or starter; the step often missed is verifying the contactor is a NEMA Size 0, 00, or 1 model before installation.

What maintenance or replacement will the GE CR305X100C contact block need over time?

The block has 1 normally open and 1 normally closed contact rated at 10 A; replace the entire unit when contact wear causes unreliable switching or when the 250 V DC / 600 V AC rating is exceeded.

What electrical limit appears first when the GE CR305X100C runs continuously at full load?

The 10 A current rating is the first limit; sustained operation above 10 A will overheat the contacts before the 250 V DC or 600 V AC voltage ceiling is reached.

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