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Grounding plug · 30/50A 125/250V 3P4W NEMA 14-30P/14-50P universal angle back wire · Eaton S21-SP
SKU: CWD-S21-SP
Commercial-grade grounding plug for 125/250V range and dryer connections with universal NEMA 14-30P and 14-50P configuration. Back-wire termination accepts #10-4 AWG conductors and the angled body helps with cord routing in tighter equipment spaces.
What this product is for
This grounding plug is used to terminate 125/250V 3-pole, 4-wire cords for compatible range and dryer applications where a NEMA 14-30P or 14-50P style connection is required.
Use for
Use for commercial or heavy-duty cord-end replacement, new cord assemblies, and equipment connections that require a 30A or 50A 125/250V straight-blade plug configuration. The universal angle body can help reduce cord strain and improve clearance behind equipment.
Avoid for
Avoid for receptacles or equipment with a different NEMA configuration, different voltage, or different conductor range. Do not use where a locking device or weatherproof connection is required.
Best for
Best for electricians and maintenance teams replacing worn range or dryer plugs, or building cord sets that may need either NEMA 14-30P or 14-50P compatibility in the field.
Installed in
Typically installed on appliance cords and equipment leads in residential, multi-unit, and light commercial settings. The compact angled form is useful where equipment sits close to the wall.
Why this product exists
This model provides one plug body that supports both 14-30P and 14-50P applications, helping reduce SKU count for service stock while covering common 125/250V 3P4W range and dryer connections.
Compared with similar products
Compared with a single-configuration plug, this universal model covers both 30A and 50A NEMA patterns. Compared with a straight body plug, the angle style is typically easier to route in tighter spaces, though actual fit depends on cord size, bend radius, and equipment clearance.
Specifications
- Brand: Eaton Arrow Hart
- Manufacturer part number: S21-SP
- Product type: Heavy-duty universal NEMA power plug
- Configuration: NEMA 14-30P and 14-50P
- Poles and wires: 3-pole, 4-wire, grounding
- Voltage rating: 125/250V AC
- Current rating: 30A/50A
- Wiring method: Back wire
- Conductor range: #10-4 AWG
- Body style: Universal angle plug
- Material: Thermoplastic body with brass contacts
- Colour: Black
- Cord diameter: approximately 1.13 in (29 mm)
- Typical applications: Range and dryer
Selection guidance: match the plug configuration, circuit rating, cord size, and equipment nameplate before installation. Actual suitability depends on the connected load, cord type, and local electrical code.
- ApplicationRange and dryer
- ColourBlack
- MaterialThermoplastic body with brass contacts
- Body StyleUniversal angle plug
- ConfigurationNEMA 14-30P and 14-50P
- Conductor Range#10-4 AWG
- Voltage125/250V AC
- Current Rating30A/50A
- Poles And Wires3-pole, 4-wire, grounding
- Wiring MethodBack wire
- BrandsCooper Wiring Devices
- Stock in Elmira29
- Stock in Flesherton21
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Aptico Supply helps electricians, contractors, and commercial buyers get the electrical materials they need without unnecessary delays. Whether you are ordering for a jobsite, restocking service inventory, or arranging pickup, our delivery options are designed to keep work moving.
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Free weekly delivery is available for smaller accounts in select service areas.
- Elmira area delivery: Tuesday
- Flesherton area delivery: Thursday
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Delivery Questions
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Do delivery charges apply?
Delivery charges may apply outside regular local routes, for smaller orders, or for oversized and heavy items.
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