1: 2 General information about pre-insulated terminals System Elpress System Elpress consists of terminals and tools that are designed and tested together to give a certified crimping result. This ensures that users will feel confident when using our systems, and that a secure connection will be achieved through the proper handling of our products. Pre-insulated terminals Elpress ring, fork and pin terminals are made of high-class copper 99.95%. The tab and bullet terminals are made of brass or tin-bronze. All terminals are then electrolytically tin-plated for maximum corrosion protection. The terminal’s neck is brazed and annealed, which means it can be crimped in any direction. The metal in the receptacles’ neck is double folded. This means that the finished terminal has excellent mechanical strength and low resistance. Insulation material Elpress insulation sleeves are usually made from halogen-free polycarbonate, PC, which has excellent deformation properties. Furthermore, it maintains its vibration support up to high temperatures. Caution must be exercised in case of alkaline exposure. Some types of terminals have insulation of PA, nylon, which is also halogen-free, or PVC (not halogen free. The colour of the insulation sleeve indicates the cross-sectional area that the terminal is intended for: Bright yellow sleeve 0.1 - 0.5 mm² Green sleeve* 0.25 - 0.75 mm² Red sleeve 0.5 - 1.5 mm² Blue sleeve 1.5 - 2.5 mm² Yellow sleeve 4-6 mm² * or transparent white The table below shows properties for Elpress pre-insulated terminals insulation. Note the properties are general since the influences of environment, temperature, etc. can affect the terminals. Polycarbonate, PC, and polyamide, PA, are halogen-free, i.e. they do not contain any of the substances fluoride, chlorine, bromide or iodine. Insulation material Max. temperature Halogen -free Flammability class, UL94 PA (Polyamide) 105° Yes V0 PC (Polycarbonate) 115° Yes V2 PVC (Polyvinyl chloride) 60° No, chlorine V0 Easy-entry Elpress insulation sleeves are usually of the easy-entry type, which means it guides the conductor strands properly into the terminal neck. The risk of back-folded and stray strands, possibly resulting in flash-overs or reduced electrical properties, is therefore eliminated. Easy-entry. Labelling of pre-insulated terminals Elpress pre-insulated terminals are labelled with logo, cross sectional area and any applicable screw diameter to facilitate work and controllability. When contact crimping pre-insulated terminals, Elpress crimping dies/tools leave an imprint in the insulation sleeve so that all crimped terminals can be inspected retrospectively in accordance with the requirements of many standards. Samples of Elpress crimped pre- insulated terminals. Designation example Cat no. A1532R (E, FLS, G etc.) A = pre-insulated 15 = cross sectional area (1.5 mm2) 32 = characteristic size (Hole 3.2 mm) E = end connectors FLS = receptacles, rolled type FLSF = receptacles, fully insulated rolled type FLSH = multiple tabs, rolled type (piggy back) FLST = receptacles, rolled type, tin-bronze G = fork terminals GB = flanged fork terminals H = tabs (male) HA = bullets (male) HO = sockets (female) K = hook terminals PSK = parallel connectors R = ring terminals SF = blade terminals SFB = blade terminals, flanged SFK = blade terminals, short pin SFL = blade terminals, long pin SFN = blade terminals, with tab SR = pin terminals SRK = pin terminals, short pin SK = through connectors SKW = through connectors with heat shrink insulation Crimping of Elpress pre-insulated ring terminal with hand tool GSA0760.
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