Standard Heavy Duty FD/FP/FL Limit Switches Heavy duty limit switches with snap-action contacts and positive break according to BS/EN60947-5-1. n Bifurcated contacts for low resistance and high reliability suitable for switching low-level electronic currents n Double-break contacts with electrically separate NO and NC circuits in conformity with VDE 0660 part 206 n 10A 500VAC/600VDC rated n Lever types can be user-set to switch by clockwise movement only, anti-clockwise only or both n Turret head position rotatable in 90 increments n Centre-position indicator arrow lever actuators n Wide range of actuators n Single and triple cable entry models n Removable contact block for ease of wiring n Metal or plastic housing options n IP66 according to BS EN60947-1 n FD and FP dimensions in accordance with EN50041 n Approvals: UL, CSA Options and ordering codes FD 5 01 Heavy duty metal housing FD Standard actuators options overleaf Heavy duty plastic housing FP 38 Lift-style turret with 75 total travel Triple entry metal housing FL Lift-style turret with 90 total travel Snap-action contacts, 1NO + 1NC 385 5 Slow-action, break before make 1NO + 1NC 6 Specify lever type for lift-style switch: Slow-action, make before break 1NO + 1NC 7 Fixed position roller L313 Slow-action contacts, 2NC 9 Slow-action contacts, 2NO 10 Single adjustment roller L353 Snap-action contacts, 2NC 11 Dual adjustment roller L354 Slow-action contacts, break before make 2NC + 1NO 20 Please note: Positive break applies to the NC contacts of Slow-action contacts, break before make 3NC 21 types 5, 6, 7, 9, 11, 20, 21 and 22 only. Slow-action contacts, break before make 1NC + 2NO 22 Snap-action contacts, 2NO + 2NC 2 Specifications Rated thermal current Ith 10A Rated working voltage 500VAC/600VDC Maximum operating frequency 6000/hour Mechanical life >20 million operations Contact form 1NO + 1NC Initial contact resistance <25 mOhms Contact gap >2.5mm (2 x 1.25mm conforming to VDE 0660 part 206) Contact material silver 2000VAC, 50/60Hz for 1 minute between open contacts Dielectric strength 2000VAC, 50/60Hz for 1 minute between current-carrying parts and ground Protection rating IP66 Ambient operating temperature 25 to +80 deg. C Ambient humidity 95% R.H. 2 2 Maximum wire size 2 x 1.5mm flexible, 2 x 2.5mm solid Housing material FD/FL: die-cast metal alloy, FP: self-extinguishing, glass-reinforced, thermoplastic resin Conduit entry PG 13.5 Contact ratings Terminal connections BS/EN 60947-5-1 Terminal screws: M3.5 with rising cable clamps. AC15 Control of AC electromagnetic 230VAC 6A Standard contacts (type 5) NO: 13-14, NC: 21-22 loads>72VA sealed replaces AC11 400VAC 4A Note: The positive break of the type 5 contact block applies to the NC contacts 500VAC 1A only. Connections to safety circuits should NOT be made using the NO contacts. DC13 Control of DC electromagnetic 24VDC 6A To ensure positive breaking of the contacts, exceed the pre-travel by 1.5mm or loads where the time taken to reach 125VDC 1.1A 25 according to the model. 95% of the rated current is equal to 250VDC 0.4A Maximum screw tightening torque 0.8Nm (8Kg cm) 6 times the power of the load (where P<50W) replaces DC11 New ModelsFD/FP/FL Programmable head lever operation models All limit switches with lever operation in the FD/FP/FL ranges can be user-set to switch by clockwise rotation only, anti- clockwise only or both. To change the operation, which is factory set to switch in both directions, the four screws securing the turret head should be loosened, the head removed and the internal piston rotated through 90. The head should then be replaced. The models to which this applies are: 531 532 533 535 536 538 551 552 553. Figure 1 shows the piston position for switching in both directions, figure 2 for clockwise only and figure 3 for anti- clockwise only. Standard actuator options FD and FP series Actuator type 01 Actuator type 02 Piston plunger One-way roller - top actuated Operating force min. OF 820g OF 615g Pre-travel PT 2mm PT 2.9mm Over-travel OT 4mm OT 5.6mm Movement differential MD 1mm MD 1.6mm Operating point OP 22mm OP 49.1mm Operating speed max. OS 0.5m/s OS 0.5m/s using a 30 cam Note: 20mm plastic roller as standard, 20mm metal roller actuator part no.: 021 Actuator type 05 Actuator type 10 Actuator type 11 One-way roller-side actuated Sealed piston plunger Long piston plunger OF 615g OF 1125g OF 820g PT 2.9mm PT 2mm PT 2mm OT 5.6mm OT 4mm OT 4mm MD 1.6mm MD 1mm MD 1mm OP OP 35mm OP 35mm OS 0.5m/s using a 30 cam OS 0.5m/s OS 0.5m/s Note: 20mm plastic roller as standard, 20mm metal roller actuator part no.: 051