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Safety Key Interlock Limit Switches

Item# E48P4K0


Safety Key Interlock Limit Switches E48P4K0 E48P4K0
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  • Critical Stopping Power
  • Reduces Risk to Safeguard Workplace
  • Tough Plastic Construction


Product Specs

  • Approach Speed 0.04 to 20 inches/second (1 to 500 mm/second)
  • Maximum Ambient Temperature 70 {C} (158 {F})
  • Maximum Supply Voltage 400 V (EN 60947-5-1)
  • Maximum Switching Frequency 30 operations/ minute maximum
  • Number of Contacts 1 NO/1 NC DPDB 2 NC DPDB
  • Shock Insulation Class II (IEC 536)

The E48 DIN-Style Safety Key Interlock Limit Switch is designed to be used with movable guards or covers which must be closed for operational safety. The key portion of the switch is affixed to the movable door, cover or other such guard. The switch itself is mounted to a rigid portion of the machine. When the guard is opened, the key is removed from the switch, thereby positively breaking the normally closed contacts. This interrupts the control circuit, stopping machine operation.

SPECIFICATIONS
Ambient Temperature: Operation and Storage: -30 to 70°C (-22 to 158°F) minimum temperature is based upon absence of freezing water or moisture
Enclosure Ratings: NEMA 4, IP65 (indoor only) conforming to IEC 529. Care must be taken that contaminants do not enter the actuating key area as this may prevent the switch from performing to specifications
Ambient Humidity: 95% maximum, non-condensing
Weight: 76 (0.17 lb)
Housing Material: Synthetic resin
Vibration Resistance: 10 G in both vertical and horizontal axis (from 10 to 500 Hz) conforming to IEC 68-2-27
Shock Resistance: 30 G in both vertical and horizontal axis conforming to IEC 68-2-27
Mechanical Life: 1 million operations minimum
Electrical Life: 150,000 operations minimum
Short Circuit Protection
Recommended: 10 A fuse (type gl or gG) (IEC 269)
Rated Insulation Voltage: 400 V (EN 60947-5-1)
Electric Shock Protection: Insulation Class II (IEC 536)
Operating Force (extraction): 14.7 N (3.30 lbƒ)
Release Force (insertion): 29.4 N (6.60 lbƒ)
Total Travel: 1.10" minimum (28 mm)
Pretravel: 0.24 ± 0.10" minimum (6 ± 3 mm)
Direct Opening Force: 58.8 N (13.2 lbƒ) minimum
Operating Speed: 0.04 to 20 inches/second (1 to 500 mm/second)
Operating Frequency: 30 operations/minute maximum
UL Listed: File 76675
Europe Compliance: EN 609478-5-1 Direct-opening N C contacts per EN 60947-5-1 Double insulation
TUV Rheinland: Approved
Contacts: 1 NO/1 NC DPDB 2 NC DPDB

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