About 240 workers at manufacturer Cummins-Jacobs Vehicle Systems' facility in Bloomfield have returned to work after ending a 48-hour strike.

The work stoppage, which started at noon last Friday, concluded when 80% of UAW Local 379 members at Cummins voted Sunday to ratify a tentative agreement for a new four-year contract, according to union officials. Key terms include an immediate wage increase of 4%, followed by wage hikes of 3.5% in each of the next two years, and a 4% raise in 2028, as well as a $1,300 signing bonus.

"We stuck together, fought back and won with 80% support from our members," UAW Local 379's bargaining committee said in a written statement Monday.

Contract negotiations had been contentious, according to union officials. In a news release last Friday, they alleged that the company had "interfered with the federal labor law rights of its employees by committing multiple unfair labor practice violations during the course of negotiations -- including retaliating against employees for protected concerted activity, making unilateral changes to contractual protections and bargaining in bad faith."

The press release had also asserted that, "Over more than a dozen bargaining sessions since September, Cummins has failed to make progress on key priorities including wages, sick and vacation time, job security, profit sharing and retirement security." It added that, "Instead of meeting the workers' needs, Cummins has insisted on unacceptable concessions that undermine job security, abuse temporary workers, and make changes to benefits and paid time off solely at management's discretion."

But those issues have apparently been resolved because they are addressed in a copy of the tentative agreement that was reviewed by CT Insider.

Officials at Cummins, a Fortune 500 company headquartered in Columbus, Indiana, did not directly respond to UAW's allegations. But they indicated that they were satisfied with the workers' acceptance of the new deal.

"We believe the agreed upon offer represents a fair and balanced package for all parties involved," Cummins officials said in a written statement Monday. "Throughout negotiations, we remained committed to negotiating in good faith with the union to reach a resolution as quickly as possible. We're pleased to have a mutually acceptable agreement that enabled the workforce to return to the plant and ensures we can continue to meet the needs of our employees, customers and stakeholders."

There have been several other work stoppages in Connecticut in the past few months. Late last month, about 500 group-home workers across eastern Connecticut went on strike for two days. For three weeks in May, there was a strike of more than 3,000 machinists at jet-engine manufacturer Pratt & Whitney's facilities in East Hartford and Middletown. For six and a half weeks across April and May, about 10 workers went on strike at Jescraft, an Oxford-based manufacturer of material-handling equipment.

Among other recent developments, a strike was averted when school bus drivers and monitors in the Cromwell and Middletown school districts ratified Sunday a new contract.