Hubbell Incorporated
Hubbell HBL29W74 Watertight Locking Connector L14-30R line protection
A watertight locking connector rated 30A with L14-30R configuration, NEMA 4/4X/6/6P and IP69K sealing, accepting 0.375 in to 1.125 in cords and operating from -40°C to +60°C
- TypeWatertight Devices
- Watertight protection for harsh environments with NEMA 4, 4X, 6, 6P and IP69K ratings
- Reliable power delivery in extreme temperatures from -40°C to +60°C continuous operation
- Corrosion-resistant nickel-plated brass contacts ensure long-lasting conductivity in wet conditions
- Flexible cord accommodation accepts diameters from .375 in to 1.125 in for various cable types
- Impact-resistant thermoplastic elastomer housing with stainless steel hardware withstands industrial abuse
Watertight L14-30R Connector
The Hubbell HBL29W74 is a 30 A locking connector built for industrial and commercial power distribution. Its watertight thermoplastic elastomer housing and nickel-plated brass contacts resist impact, corrosion and UV exposure. The device accepts cord diameters from .375 in to 1.125 in and suits wire sizes from 12/3 SJ through 8/3 S. It is intended for installers who need a grounded, straight-orientation receptacle rated NEMA 4, 4X, 6, 6P and IP69K.
Sustained Load Behaviour
Under continuous rated current the connector limits temperature rise to a maximum of 30 °C per UL 498. The operating range spans -40 °C to +60 °C, so performance remains stable in freezing plants or hot outdoor sites. Stainless steel hardware and UV-stabilised materials prevent degradation during long-term exposure. The design targets maintenance crews and OEMs who cannot tolerate contact failure after months of full-load service.
NEMA and IP Practical Limits
The L14-30R configuration provides a four-pole, three-wire grounding arrangement with screw terminals. Compliance with NEMA WD-1, WD-6 and ANSI standards ensures interchangeability with matching plugs and flanged inlets. The IP69K rating confirms protection against high-pressure, high-temperature wash-down, while NEMA 6P covers prolonged submersion. Buyers who need a higher amperage rating or a different NEMA pin layout must select another device.
Highlights
- Watertight protection for harsh environments with NEMA 4, 4X, 6, 6P and IP69K ratings
- Reliable power delivery in extreme temperatures from -40°C to +60°C continuous operation
- Corrosion-resistant nickel-plated brass contacts ensure long-lasting conductivity in wet conditions
- Flexible cord accommodation accepts diameters from .375 in to 1.125 in for various cable types
- Impact-resistant thermoplastic elastomer housing with stainless steel hardware withstands industrial abuse
Specifications
| Brand | HUBBELL |
|---|---|
| Type | Watertight Devices |
Questions about this item
How much heat does the HBL29W74 generate when running at 30 A continuously?
Temperature rise is limited to a maximum of +30 °C per UL498 at rated current, so the connector body stays within 30 °C above ambient during full-load operation.
What cable size must I already have to terminate in this L14-30R connector?
The connector accepts cord diameters from 0.375 in to 1.125 in and is compatible with wire sizes 12/3 SJ through 8/3 S.
Will this watertight connector mate with my existing L14-30P plug on the generator cord?
Yes, the NEMA L14-30R receptacle configuration matches any standard L14-30P locking plug for a secure, grounded connection.
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