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Small rectangular auxiliary contact block with side-mount tabs, matte grey finish, two normally closed terminals visible

Eaton

Eaton C320KG5 Cutler-Hammer Aux Contactor 2NC 10A 600V AC

SKU CH-3C34-828A0

Side-mount auxiliary contact block adds two normally closed 10 A 600 V AC contacts to compatible definite-purpose starters and contactors

  • Adds two normally-closed circuits for safety logic
  • Rated 10 A at 600 V AC for control circuits
  • Side-mount design fits existing starter enclosures
  • Compatible with A25, A27, B25, B27, C25 series
  • Suits NEMA sizes 0, 00, 1 and 2

Eaton C320KG5 Auxiliary Contact Block

The Eaton C320KG5 Cutler-Hammer auxiliary contact block adds two normally closed circuits to compatible definite purpose starters and contactors. It mounts on the side of the host device and is rated for 10 A at 600V AC. The block suits control panels needing additional interlock or status feedback contacts.

For panel builders expanding control logic

This block suits engineers adding safety interlocks or position indication to Series A25, A27, B25, B27 starters or C25 contactors in NEMA sizes 00 through 2. It does not suit applications requiring normally open contacts or direct mounting on devices outside the listed series.

Two normally closed contacts at 10 A

The decisive specification is the 2NC contact configuration rated 10 A at 600V AC, which determines whether the block matches the control circuit's current and logic requirements.

How it compares

Measured against everything we stock in Contactors, Relays & Motor Starters, at today’s prices. Recalculated every night.

Price $21.99
Cheaper than about 80% of the 1,098 comparable items (median $61.99).

Specifications

Product
Brand nameEATON

Questions about this item

Which auxiliary contact block fits my Eaton definite-purpose starter?

The C320KG5 is compatible with Series A25, A27, B25, B27 definite-purpose starters and C25 definite-purpose contactors in NEMA sizes 00, 0, 1 and 2.

What does the 10 A rating mean when the block is installed?

Each of the two normally-closed contacts can switch up to 10 A AC in the control circuit without exceeding its thermal limit.

How does the 600 V AC rating limit real-world use?

The block is rated for control-circuit voltages up to 600 V AC; do not apply higher voltages across the contacts.

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