Series 250 - snap-open along outer radius 1. Dirt-repellent contoured exterior 2. Cable-friendly, smooth interior with modular interior separation 3. Lateral glide surfaces for side mounted operation 4. Snap-open, hinged to left or right, accessible from the top 5. Integrated strain relief possible 6. Tapered insertion point for easy assembly 7. Double stop dog for long unsupported length and Large pins for long service life 8. Series 240 snap-open along the inner radius can be combined with Series 250 snap-open along the outer radius Inner widths Bi: 0.98 up to 4.92 (25 - 125 mm) Bending radii R: 2.17 up to 9.84 (55 - 250 mm) Pitch: 1.81 (46 mm) per link = 7 links/ft (22/m) When to use Series 250 If snap-open accessibility along the inner or outer radius is required If integrated strain relief at the mounting point is required If modular interior separation is required If long service life is required If easy installation is required When not to use Series 250 If each link requires snap-open accessibility on both sides simultaneously System E4 Series 220 If chip protection is required Energy tubes E2, R48 If the application is very simple Easy Chain®, E 200