is "Weather Pack"?
Weather Pack is an environmentally
sealed connection system developed by Packard Electric
engineers (now Delphi/Packard Electric Systems)
to withstand exposure to extreme temperatures,
moisture, and harsh engine compartment fluids and
chemicals with unfaltering performance. It consists
of mating heat stabilized polyamide housings (Weather
Pack “towers and shrouds”), male and
female “pin and socket” Weather Pack
terminals and self-lubricating silicone Weather
Pack connector seals, cable seals and cavity plugs.
The system is rated 0.05–16.0 VDC, 0-20A.
Weather Pack connector configurations are available
for one to six wires.
What is the Weather
Pack part number code?
The "WP…" numbers are ours. The 8-digit numbers in parentheses
are Delphi/Packard Electric numbers.
What is the maximum current
rating for Weather Pack connectors?
Delphi Packard Electric Systems rates Weather Pack at 0 -
20 amps maximum.
How do I choose the right
size cable seal?
The choice of cable seal is determined by the insulation
diameter of the wire being used. The guidelines offered below
apply to Weather Pack and Sealed Metri-Pack 280 Series installations.
F or Type GPT and GXL wire,
the red seal normally fits 22 gauge; the green seal normally
fits 20, 18, and 16 gauge; the gray seal normally fits 14
gauge; and the blue seal normally fits 12 gauge.
For heavier wall Type SXL wire,
the green seal normally fits 20 and 18 gauge; the gray seal
normally fits 16 gauge; and the blue seal normally fits 14
and 12 gauge.
For thin-wall wire construction
such as Type TXL, the red seal normally fits 20 gauge; the
green seal normally fits 18, 16 and 14 gauge; the gray seal
normally fits 12 gauge; and the blue seal normally fits 10
The installer must be certain
that the seal fits snugly over the wire insulation to maintain
a proper environmental seal.
Click the "Online Catalog" button and navigate to the Useful Information
page for primary wire insulation diameters and more Delphi cable seal application information.
Why is Weather Pack available
in 12-gauge if the maximum current rating is only 20 amps?
The 12-gauge Weather Pack terminals are designed for signal
voltages where conductor reliability is critical. A larger
conductor will provide a clearer signal than a smaller one.
The 12-gauge Weather Pack terminals should not be used in
high-current applications that would normally use 12-gauge
Is there a sealed connection
system that will carry more than Weather Pack's 20 amps?
280 Series connectors will
carry up to 30 amps, and are available in one-, two-, and
three-wire configurations. A sealed Metri-Pack
480 Series connector set
is available in a two-wire configuration that will carry
up to 42 amps. A sealed Metri-Pack
630 Series connector set
is available in a three-wire configuration that will carry
up to 46 amps.
Why are there slits on some
of the individual towers on Weather Pack tower connectors?
The slits are called indexing slots and they
prevent mismating. A Weather Pack tower connector will only
fit the matching Weather Pack shroud connector.
What do the Weather Pack tower
connector colors signify?
Colors are used with application-specific Weather Pack connectors
to make them look different from the standard tower connectors.
The colored connectors are designed to fit devices such as
switches or sensors. They feature special indexing and are
not interchangeable with the standard black tower connectors.
I’m looking for
Weather Packs with flat male blade terminals or square profile
female terminals. Do you have them?
The Weather Pack system uses only round pin
terminals or round socket terminals. If a sealed connector
without round terminals is marked "DELPHI" or "P.E.D.," it
could be a Metri-Pack, a GT or a Ducon series connector.
We stock many different Metri-Pack components. Send us a
sample or a picture of what is needed and we can probably
identify and supply your requirements.
Do I need a crimp tool made
specifically for Weather Pack?
Not necessarily. Many open barrel crimp tools can perform
an acceptable Weather Pack wire crimp. A Weather Pack seal
crimp can be made with common slip joint pliers. Note that
the seal crimp should be just firm enough to hold the seal
in place. A tight seal crimp can damage the seal. Professional
tools made specifically for Weather Packs crimp both the
terminal and the seal in one cycle.
We are considering buying your T-12 professional
crimping tool. It looks different from your other crimping
tools. How is it used?
Click here for
our T-12 instruction
What does a proper Weather
Pack crimp look like?