Pushbutton Stations - 1, 2 or 3 stations Emergency Stop, Switched, Key Switched and Momentary pushbuttons Installation Instructions Issue 10 = = = = =========== Fig 2 Fig 1 Fig 4 INSTALLATION 1. Figures 1 and 2 show an exploded view of two typical pushbutton stations. A - Base moulding incorporating up to 4 Contacts (see table 1). The design allows the cover to be removed without removing the contacts or wiring. B - Normally closed or open contact block. Additional contacts simply clip in place, observe positions as per table 1. C - Legend plates are located here or a spacer used if legend plate not fitted. D - Pushbutton. 3GOGORSC -EN 1RSC-ENSS 1NO 1NC MCB-20B MCB-02B Each pushbutton station is supplied with contacts as shown In Table 1. Additional contacts must be fitted in accordance with the options shown in Table 1 and positions shown in Figures 3 and 4, (3 station not shown). The contacts simply snap into position or are lightly levered out using a small flat screwdriver. 3. IMPORTANT - Position 4 must never be used with a single type contact. If 4 contacts are required then a special double contact must be used in positions 3 and 4. Part number shown in table 1. = Pushbutton Selection Table 1. Order Code 1GO 1RC 1RSC * 1RSC-EN 1RMSC50 1RMSKC * 1H2O-I 1K2 O-I 1H 3 I-O-II 2GORC 2ORSC-EN 3GOGORC 2. Description Start/Green Stop/Red Mushroom Head 30mm (twist release) Emergency Stop 40mm (stay put) - to IEC 60947-5-5 Mushroom Head 60mm (twist release) Emergency Stop (key release) - to IEC 60947-5-5 Two position switch Two position key switch (key removable) Three position switch Start/Green and Stop/Red Start/Green & Red/Emergency stop 40mm EN418 Forward/Green - Stop/Red - Reverse/Green Two Green and Red/Emergency Stop 40mm (twist release) - to EN418 Emergency Stop 40mm (stay put) - to EN418 Stainless Steel Enclosure. Rear mounted contacts Replacement contact block n/o Replacement conact block n/c Replacement 2 pole contact block n/o see note 3 Replacement 2 pole contact block n.c see note 3 Factory Fitted Contact "N.O" or "N.C" depending on pushbutton type Additional contacts. "" can be N.O or N.C. "" means do not fit. N= O= P= Q= N= O= P= Q= N= O= P= Q= n.o n.c n.c n.o * Cannot accept additional contacts n.c n.c n.c n.o= * Cannot accept additional contacts n.o n.o n.o n.o n.c n.o n.c n.o n.c n.o n.o n.o n.c Contact Block Ratings Rated Insulation Voltage Rated Thermal Current Rated operational Current " " " " " " " " " UL/CSA NEMA 600V 10A (120V) 6A (240V) 3A (480V) 1.5A (600V) 1.2A IEC947-5-1 690V 10A (120V) 8A (230V) 6A (400V) 4A (690V) 2A DC Utilisation * Rated Insulation Voltage 250V 300V (24V DC) 0.3A * Rated Thermal Current 2.5A 5A (125V DC) 0.2A n.c Terminals Category DC13 (24V DC) 5A (125V DC) 1.1A (250V DC) 0.55A n.o Note - Only use rear mounted contacts. N.O part No 1NOR, N.C part No 1NCR Connectable areas Recommended torque * Compact Em-Stop * Connectable areas (Compact Em-stop) Min 1 x 0.5mm2 Max. 2 x 2 2.5mm 0.9 Nm 0.8 Nm Min 1 x 0.5mm2 Max 2 x 1.5mm2 = Council of European Communities Directives: The products in this publication conform to relevant EEC Directives and EN Standards. Installation and use of such products must be carried out by competent, properly trained personnel, complying with any instructions supplied by ABB. Liability for improper incorporation, assembly, use, processing, storing or handling of goods remains the sole responsibility of the individual, or company carrying out such work. This publication is for information only. Whilst every care has been taken in the preparation of this leaflet, no liability is accepted for any consequence of its use. No licence to use any patent should be assumed. All dimensions are approximate only and subject to change without notice, as are other technical features resulting from continual development and improvement. ABB Limited Tower Court, Foleshill Enterprise Park, Courtaulds Way, Coventry. CV6 5NX Tel: 02476 368500 Fax: 02476 364499 ABB MSKMNOQSPLQbNMMR= 06.012463.10E 0808 Fig 3