Safety Key Interlock Limit Switches |
| E48 Series |
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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 lb)
Release Force (insertion): 29.4 N (6.60 lb)
Total Travel: 1.10" minimum (28 mm)
Pretravel: 0.24 ± 0.10" minimum (6 ± 3 mm)
Direct Opening Force: 58.8 N (13.2 lb) 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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† All dollar amounts on this site are shown in US currency.
Note: N O and N C contacts are defined with the key fully engaged in the switch.
Comes with complete operating manual.
Ordering Example: (1) E48P4K1 Switch, $60.00, plus (1) E48KL07 Actuating key, $21.75, $60.00 + 21.75 = $81.75
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