SIPTU members employed at the Cavan-based distribution transformer supplier Kyte Powertech have voted to accept Labour Court recommendations on pay proposals.
The workers took strike action last month saying they had been left with no option in their efforts to secure a pay increase that protected their standard of living amid soaring inflation.
Kyte Powertech management and SIPTU attended the Labour Court on 1 September and a recommendation was to put to a ballot of workers.
"SIPTU members have accepted enhanced proposals to resolve the industrial dispute at Kyte Powertech," said SIPTU Divisional Organiser Greg Ennis.
"I commended our members for their unshakable resolve and discipline shown on the picket lines in recent weeks," he added.
Kyte Powertech welcomed the result of the ballot.
"This brings an end to all industrial action," the company said in a statement.
"We look forward to continuing to deliver for our customers in Ireland, the UK and across Europe," the company said.
Kyte Powertech employs 455 people in its Cavan plant, making it the largest private employer in the region.
According to the firm, 360 of these are members of SIPTU, although the union itself puts the figure at 420.
Local negotiations on a pay deal began last October but failed to reach an agreement.
As a result, the issue was jointly referred to the Workplace Relations Commission, with engagements taking place involving both the firm and the union in February and April.
A set of proposals was agreed by both parties in April, but it was rejected by workers.
The matter was then referred to the Labour Court in May and it subsequently issued a recommendation which was also rejected by workers.