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TRANS TANK GRND CONN 1 1-3/8
Manufacturer Resources
Product Specs
- Connection Type:
- Mechanical
- Country Of Origin:
- India (IN)
- Insulation Material:
- None
- Material Of Conductor:
- Copper
- Product Group:
- Wire & Cable Management
- Product Net Depth Length:
- 1-3/8 in
- Product Type:
- Transformer Tank Ground Connector
- Selling Unit Of Measure:
- each
- Standards:
- RUS Listed
- Type Of Indicator:
- None
- Type2:
- Grounding devices or assemblies
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- 1-1/4 X 7/8 X 1-3/8 in
Blackburn TTC4 – Frequently Asked Questions
1) What does the Blackburn TTC4 transformer tank ground connector actually do?
The TTC4 is a mechanical grounding connector used to bond a ground conductor to a transformer tank or similar equipment enclosure. It is a bolted mechanical connection, not a compression or exothermic joint, so it is made up with a wrench in the field and can be taken apart later. The connector body is copper and carries no insulation, so it is intended to be part of the bonded, grounded path rather than an insulated splice.
2) Is the Blackburn TTC4 accepted for utility distribution work?
The TTC4 is RUS Listed, which is the Rural Utilities Service acceptance that distribution co-ops and many utility spec books call out for grounding hardware on padmount and polemount transformers. If your job spec calls for RUS accepted grounding connectors, this one meets that line item.
3) Can I use a copper ground connector like the TTC4 on an aluminum or galvanized transformer tank?
The TTC4 body is copper, and copper in direct contact with aluminum or bare galvanized steel sets up galvanic corrosion at the joint. On a copper or tin plated tank pad it goes on directly. On aluminum or galvanized surfaces, use the connector the tank manufacturer specifies for that base metal, or a plated connector with an approved joint compound, rather than putting bare copper against it.
4) How much room do I need in the transformer cabinet for a TTC4 ground connector?
Plan for a footprint of 1-1/4 x 7/8 x 1-3/8 inches. The 1-3/8 inch figure is the net depth, so that is what projects off the tank wall or pad once the connector is bolted down. In a tight padmount cabinet, measure clearance between the tank boss and the cabinet wall or elbow before you commit.
5) Should I use a mechanical connector like the TTC4 or a compression ground connector?
A mechanical connector is the choice when you want a joint you can inspect, re-torque, or disconnect for testing, and when you do not want to bring a hydraulic crimper or a welding kit into a live cabinet. The TTC4 is a bolted mechanical device. Compression or exothermic connections are preferred where the joint is buried, inaccessible, or the spec calls for an irreversible bond. For a transformer tank ground pad that has to be opened for future maintenance, mechanical is normally what gets installed.
6) Does the Blackburn TTC4 come as a single piece or in a bulk pack?
It sells each, one connector per unit, under manufacturer part number TTC4. If you are grounding a run of transformers, count one per tank pad and order the quantity you need rather than expecting a carton multiple.
7) Does the TTC4 have any kind of torque or connection indicator?
No indicator of any kind is built into this connector. Make the joint up to the torque value on the connector or in the utility spec using a torque wrench; there is no shear head, break-off bolt, or visual tell to confirm it for you.
How fast can I get the Blackburn TTC4 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Blackburn TTC4 come with a warranty?
Absolutely. The Blackburn TTC4 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Blackburn TTC4?
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