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Blue industrial pin-and-sleeve plug with ribbed housing and grounding pin visible

Eaton

Eaton Arrow Hart AH420P9W straight blade plug 20A 250V three-phase IP69K #12-#10 AWG blue

SKU CH-14N3-W4JZE

A three-phase 20 A 250 V straight-blade plug with IP69K and IP67 ratings, accepting #12–#10 AWG conductors via back-wire terminals

  • Number of items1
  • IP69K rating withstands high-pressure washdowns
  • 20 A 250 V three-phase power for industrial equipment
  • #12–#10 AWG back-wire terminals accept thick conductors
  • Nickel-plated brass contacts resist corrosion
  • Compact 8.5 in × 4.375 in body fits tight panels

Application fit

The Eaton Arrow Hart AH420P9W is a straight-blade pin-and-sleeve plug rated for 20 A at 250 V three-phase. It accepts #12 to #10 AWG conductors via back-wire terminals and carries an IP69K rating for high-pressure wash-down environments. Industrial maintenance teams and OEM panel builders use it where three-phase power must stay connected in wet or sanitary zones.

Sustained-load behaviour

Nickel-plated brass contacts and a nylon housing maintain low resistance across the three-pole, four-wire grounding circuit during continuous 20 A operation. The IP67 and IP69K seals prevent moisture ingress that could degrade contact integrity over long duty cycles. Cable accommodation from 0.333 to 0.775 in diameter ensures secure strain relief without conductor fatigue.

Build and connection implications

The compact 8.5 in length by 4.375 in height and width footprint fits tight panel cut-outs while the blue nylon shell resists impact and chemical exposure. Back-wire termination speeds field installation and eliminates exposed screw heads that can snag in wash-down areas. Male pin configuration mates with standard three-phase receptacles for quick disconnect during equipment change-over.

How it compares

Measured against everything we stock in AC Plugs & USB Wall Chargers, at today’s prices. Recalculated every night.

Price $71.99
Pricier than about 90% of the 547 comparable items (median $17.99).

Specifications

Product
Brand nameEaton
In the box
Number of items1

Questions about this item

Does the AH420P9W generate noticeable heat or draw excess power when supplying 20 A continuously?

As a passive pin-and-sleeve connector, it does not consume power or produce heat beyond normal conductor losses at its 20 A, 250 V rating.

What wire gauge and type must I already have to terminate this plug correctly?

The back-wire terminals accept #12 to #10 AWG conductors with an insulation diameter between .333 and .775 in.

Will this blue three-phase plug mate with older 20 A 250 V receptacles that use a different keying position?

The blue housing follows the standard 9-hour keyway for 20 A 250 V three-phase, so it only fits receptacles with the same clock position.

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