02/11/2015 www.crouzet.com 83894 metal interlock switches 83894122 / 83894132 3-pole Part number 83894122 Monitoring of moving guards for machines with a stopping time which is greater than the time taken to access the danger zone Locked by removing the voltage, unlocked by applying voltage to the electromagnet Metal bodies and heads Heads have 4 possible positions at 90 Positive opening contacts Part numbers 83 894 122 Type Type of contacts Action 83894122 / 83894132 3-pole NC+NO+NO (2NO break before make) Slow action Specifications Environment Conforming to standards Products Conforming to standards Machine assemblies Certifications Protective treatment in normal operation Temperature Use (C) IEC 947-5-1, EN 60 947-5-1, UL 508, CSA C22-2 no.14, JIS C4520 (See P.3/4) IEC 204-1, EN 60 204-1, EN 1088, EN 292O UL, CSA "TC" -25 +70 -40 +70 Storage temperature (0C) Vibration resistance according to IEC/EN 60068-2-6 Schok resistance according to IEC 28-2-27 Degree of protection according to IEC 529 and IEC 947-5IP 67 1 Cable entry One threaded hole for cable gland 13 Electrical characteristics Assigned working characteristics Assigned insulation voltage according to IEC 947-5-1 Assigned insulation voltage according to UL 508, CSA C22-2 no.14 Assigned impulse voltage according to IEC 947-5-1 Thermal rating according to IEC 947-5-1 Electric shock protection Class 2 according to IEC 536 Resistance between terminals according to IEC 954-5-4 Protection against short circuits Connection Screw clamp terminals Clamping capacity with or without ferrule AC 15 B300 Ue = 240 V, Ie = 1.5 A or Ue = 120 V, Ie = 3 A DC 13 Q300 Ue = 250 V, Ie = 0.27 A or Ue = 125 V, Ie = 0.55 A Ui = 500 V Ui = 300 V Uimp = 4 KV Ithe = 6 A 30 m Cartridge fuse 10 A gG (gl) min. 1 x 0,5 mm2 , max. 1,5 mm2 Electrical life according to IEC 947-5-1 appendix C Environment Electromagnet supply voltage (50/60 Hz in AC) Maximum actuation speed Minimum actuation speed Resistance to removal of key Mechanical life (operating cycles) Minimun operating frequency (operating cycles per hour) Minimum positive opening force Cable entry according to NFC 68 300 Weight (g) 230 V AC / DC 0,5 m/s 0,01 m/s 2000 N 106 600 20 N 2 PG 13 1140 Electromagnet characteristics Operating factor Voltage limits Service life Consumption Inrush Consumption Sealed 100 % -20 % < +10 % 20 000 10 VA 10 VA Indicator characteristics Assigned insulation voltage according to IEC 947-5-1 Current consumption (mA) Assigned working voltage AC or DC Voltage limits AC or DC (including ripple) Service life (h) 250 V 7 mA 110 / 240 V 95...264 V 100 000 Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 02/11/2015 www.crouzet.com Protection against voltage surges Accessories Symbol Accessories Code Straight key 79 214 578 Wide key 79 214 579 Flexible key 79 214 580 Principles Type 83 894 1 safety switches are fitted with an electromagnet for locking/unlocking the guard. With the guard locked, the force required to remove the key is 200 daN. In addition to the 3-pole contact element actuated by the key, 83 894 2 limit switches also have a positive break type "NC + NO" contact element, actuated by the electromagnet. The "NC" contact is integrated in the machine safety circuit, and the "NO" contact indicates the position of the electromagnet. Principles Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 02/11/2015 www.crouzet.com Type 83 894 1 safety switches are supplied with a key-operated lock which can be used to unlock the moving guard, bypassing the electromagnet. Unlocking using a key-operated lock is recommended in the following cases : machine maintenance (if the key is turned to "UNLOCK" and then removed, this will prevent the machine from restarting accidentally, therefore ensuring the safety of maintenance personnel). mains failure problem with unlocking (locking cannot be released : fail-safe condition). Unlocking by applying voltage to the electromagnet always takes priority over unlocking using a key-operated lock. The locking mechanism for standard devices allows the key to be removed in the "LOCK" and "UNLOCK" positions. Principles Power supply for the electromagnet on 83 894 1 The electromagnet for type 83 894 1 safety switches runs on D.C. and is therefore particularly reliable. As it is protected by a bridge rectifier A.C. or D.C. supplies can be used (24 V, 48 V, 120 V or 230 V). Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 02/11/2015 www.crouzet.com It is also protected against voltage surges. Dimensions (mm) Product 83 894 1 No Legend 1 threaded hole for cable gland 2 slots O 7.3 x 5.3 Dimensions (mm) Actuators Straight key 79 214 578 Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 02/11/2015 Dimensions (mm) Actuators Wide key 79 214 579 Dimensions (mm) Actuators Flexible key 79 214 580 Connections Category 1 according to EN 954-1 Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected www.crouzet.com 02/11/2015 www.crouzet.com Examples of wiring diagrams with a fuse to provide protection against short-circuits in the cable or tampering. Locking by removal of voltage "NC+NO+NO" 83 894 12 No Legend Electromagnet 33-X1 : LED (orange) : key not inserted 51-X1 : LED (green) : key inserted and locked 21-52 : Safety pre-wiring compulsory Connections Category 3 according to EN 954-1 Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 02/11/2015 www.crouzet.com Examples of wiring diagrams with redundancy of the switch contacts, without monitoring. Locking by removal of the voltage "NC+NC+NO" 83 894 13 No Legend Electromagnet Auxiliary contact E1-E2 : Power supply for electromagnet 43-44 : Electromagnet signal contact 13-14 : Safety contact available for redundancy Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Crouzet: 83894122