As general agent of HKE relay in South East China, we can supply you quality HKE relay with fairly reasonable price and at the same time we can provide more relay choices for you for equivalent models of other brands, including ZN's Dimensions: 31.8 x 27.4 x 20mm Load: 30A (maximum) Coil voltage: 5 to 48V DC Contact form: 1 x no, 1 x switching Contact material: Ag alloy Feature: grade F-insulation