Product Overview The ER Emergency Stop Switch (models A1.144.9127 and A1.144.9128) is a critical safety component engineered for Heidelberg offset printing machines. Manufactured in China to reliable ER specifications, this switch delivers dependable emergency shutdown performance, helping protect operators and equipment during press operation. Key Specifications Brand ER Model Numbers A1.144.9127 | A1.144.9128 Component Type Emergency Stop Switch Application Heidelberg