This is a single contact block, ZB4BZ102, for standard applications with body/fixing collar. Features: 1. Has 1 NC contact composition with a slow-break operation 2. Screw clamp connection terminal 3. Contacts are made of Silver Alloy material Specifications: CAD width: 1.18 in CAD height: 1.85 in CAD depth: 1.46 inch Product weight: 0.12lbs All our products here at ATI are manufactured according to industry safety standards. This product has the following certifications: LROS, CSA, BV, DNV, UL, GL, RINA