About Penn-Union
About Penn-Union
Penn-Union has designed, manufactured, and supplied quality electrical connectors and related products since 1928, building nearly a century of experience in mechanical and compression connector technology. The company is based in Edinboro, Pennsylvania, about 20 miles south of Erie.
Its production facility and office complex houses a non-ferrous green sand foundry, machine shop, design and engineering department, and test laboratory, supporting a product portfolio segmented into compression connectors, terminal blocks, grounding products, power distribution blocks, and overhead and underground utility connectors. Those products serve construction, data center, renewable energy, transportation, power transmission, rail, telecom, and utility markets.
Penn-Union reaches those markets through a worldwide network of manufacturing representatives and wholesale electrical distributors, supporting distribution, construction, utilities, power transmission, industrial, telecom, renewable energy, aerospace, and rail systems customers. ChatMRO's catalogue covers Penn-Union's connectors, terminal blocks, and grounding products by wire size and application so electrical contractors can match the right connector to their job.
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Frequently asked questions
How long has Penn-Union been manufacturing electrical connectors?
Penn-Union has designed and manufactured electrical connectors since 1928, giving it nearly a century of experience in mechanical and compression connector technology. The company remains based in Edinboro, Pennsylvania.
What's the difference between Penn-Union's compression and mechanical connectors?
Compression connectors are crimped onto conductors using a hydraulic or mechanical tool to create a permanent, high-integrity connection, while mechanical connectors use set screws or bolts for a connection that can be adjusted or removed. Penn-Union manufactures both types across its product lines.
What markets does Penn-Union's product line serve?
Penn-Union serves construction, data centers, renewable energy, transportation, power transmission, rail, telecom, and utility markets. Its product portfolio of compression connectors, terminal blocks, and grounding products is built to meet the demands of each of those sectors.
Does Penn-Union manufacture its own castings in-house?
Yes, Penn-Union's Edinboro, Pennsylvania facility includes a non-ferrous green sand foundry alongside its machine shop and test laboratory. This in-house casting capability supports its compression connector and power distribution block manufacturing.
How does Penn-Union distribute its products?
Penn-Union sells through a worldwide network of manufacturing representatives and wholesale electrical distributors. This distribution network serves construction, utility, power transmission, and industrial customers across multiple regions.