האגודה הישראלית לחקר יחסי עבודה

They say they are taking the industrial action in a row with management over workload, overtime rates and their right to have a recognised union.

SIPTU organiser Niall McNally said union members voted by more than 90 per cent to take strike action over what he claimed is the company's "intransigence" in dealing with workers' concerns.

He said: “The company has failed to show any collective effort to address the concerns of the workforce over the last five months. Despite repeated attempts, management has failed to engage with SIPTU representatives. The attitude displayed towards their union by their employer has deeply angered our members.”

Mr McNally added: “Our members regret the impact this strike might cause to the general public but believe they have no other option.

"The cash-in-transit business is a busy and dangerous industry and our members play a vital role in replenishing and protecting cash supplies for the businesses and the wider community.”

The planned strike comes as official figures show the number of workers who took strike action across the UK last year reached a record low - even though Northern Ireland reported the highest number of lost days.

A total of 81,000 workers involved in industrial disputes went on strike, the lowest figure since records began in 1893.

Days lost to strikes last year were the second lowest on record despite a number of public sector disputes.

A total of 170,000 days were lost, well down on the figure of 788,000 for 2014, said the Office for National Statistics (ONS).

The lowest annual figure since records began was 2005 when there were 157,000 days lost.

Transport and storage, including the railways, had most days lost to labour disputes last year at 60,200.

ONS labour market statistician Nick Palmer said: "The main reason that 2014 had a higher figure than last year was that it saw a number of large scale public sector strikes that were not repeated in 2015.

"In all 81,000 workers went on strike in 2015, the lowest figure since records began in 1893."

Northern Ireland had the highest rate of days lost at 21 per 1,000 employees, followed by London at 15, while the North East, Yorkshire and the Humber, the East Midlands, the West Midlands and the East all had rates of one day.

The biggest number of days lost last year were in disputes over pay at 71 per cent of the total, followed by rows over redundancies.

Most disputes lasted no more than three days, with 30 per cent being just one day.

The percentage of disputes lasting more than one day was noticeably higher in 2015 than in recent years at 70 per cent, compared with 54 per cent in 2014 and 37 per cent in 2013.