Safety Limit Switch
Model：ED series
Feature :
• Fits on 25mm tubing, ideal for small, light weight guards
• Contacts: Slow action 1N.C. /1N.O; 2N.C.; snap action 1N.C./1N.O.
• Positive opening mechanism
• Double-insulation structure
• Eight possible actuator entry points, easy to install
• 90° and straight key
• IP65 enclosure rating
• Robust stainless steel keys
Download
Add to inquiry
• Fits on 25mm tubing, ideal for small, light weight guards
• Contacts: Slow action 1N.C. /1N.O; 2N.C.; snap action 1N.C./1N.O.
• Positive opening mechanism
• Double-insulation structure
• Eight possible actuator entry points, easy to install
• 90° and straight key
• IP65 enclosure rating
• Robust stainless steel keys
Description
The EK series is a tongue (or key) operated safety interlock switch designed to fit at the leading edge of sliding, hinged or lift-off guards. With its dual entry slots and rotatable head, the versatile EK series can offer up to eight different actuator entry options. Operation of the switch is achieved through the insertion of a specially profiled stainless steel key that is permanently mounted to the guard door.
Available with one N.C. safety contact and one N.O. auxiliary contact or two N.C. contacts, the EK series is sealed to IP67 and has various conduit entries. A blanking plug is supplied for the unused key entry. Available accessories include a 90° actuator.
Specifications
| Standards | EN60947-5-1, UL508, EN50047, EN1088 |
| Approvals | cULus, TUV and CE marked for all applicable directives |
| Positive Opening Operation | NC Contact |
| Utilization Category | AC15 A600 |
| Min Current | 5V, 5mA, DC |
| Thermal Current (lth) | 10A |
| Rated Insulation Voltage | 600V AC |
| Rated Impulse withstand Volt | 2500V AC |
| Insulation Resistance | 100MW min. (DC 500V) |
| Contact Resistance | 25mW max. (Initial) |
| Max Switching Speed | 250mm/s |
| Max Switching Frequency | 6000 operation per hour |
| Enclosure Material | UL approved glass-filled polybutylene terephthalate |
| Roller Material | Various polymers |
| Enclosure Protection | IP 67 |
| Operating Temperature | Min -25°C (-18°F) Max 80°C (+176°F) |
| Pollution Degree | 3 |
| Protection Against Electric Shock | Class II (Double Insulation) |
| Mech. Life Expectancy | 1 x 107 Cycles min |
| Electrically Life Expectancy | 150,000 Cycle min |
| Vibration | IEC 68-2-6, 10-55Hz±1 Hz, Excursion: 0.35mm, 1 octave/min |
| Conduit Entry | Various (see Product Selection table) |
| Fixing | 2 x M4 |
> Product Selection
Operating Characteristics
Item No. | Dimensions
| Unit: mm | ||||||||
| ED-20 Roller Arm Type | ||||||||
| Operating Characteristics | ||||||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
Positive Opening | Total Travel |
||
| Travel (min) |
Force (min) |
|||||||
| ED-x-1-20 | Slow 1NC/1NO | 30° | 41° | 6.5 N | 45° | 19.0 N | 80° | |
| ED-x-2-20 | Slow 2NC | 30° | - | 6.5 N | ||||
| ED-x-3-20 | Snap 1NC/1NO | 28° | - | 5.3 N | ||||
| ED-x-4-20 | Slow 2NC/1NO | 30° | 41° | 6.5 N | ||||
| ED-x-5-20 | Slow 3NC | 30° | - | 6.5 N | ||||
Item No. | Dimensions
| Unit: mm | ||||||||
| ED-21 Adjustable Roller Arm Type (Standard arm) | ||||||||
| Operating Characteristics | ||||||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
Positive Opening | Total Travel |
||
| Travel (min) |
Force (min) |
|||||||
| ED-x-1-21 | Slow 1NC/1NO | 30° | 41° | 6.5 N | 45° | 19.0 N | 80° | |
| ED-x-2-21 | Slow 2NC | 30° | - | 6.5 N | ||||
| ED-x-3-21 | Snap 1NC/1NO | 28° | - | 5.3 N | ||||
| ED-x-4-21 | Slow 2NC/1NO | 30° | 41° | 6.5 N | ||||
| ED-x-5-21 | Slow 3NC | 30° | - | 6.5 N | ||||
Item No. | Dimensions
| Unit: mm | ||||||||
| ED-22 Adjustable Roller Arm Type (Long arm) | ||||||||
| Operating Characteristics | ||||||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
Positive Opening | Total Travel |
||
| Travel (min) |
Force (min) |
|||||||
| ED-x-1-22 | Slow 1NC/1NO | 30° | 41° | 5.2 N | 45° | 19.0 N | 80° | |
| ED-x-2-22 | Slow 2NC | 30° | - | 5.2 N | ||||
| ED-x-3-22 | Snap 1NC/1NO | 28° | - | 4.5 N | ||||
| ED-x-4-22 | Slow 2NC/1NO | 30° | 41° | 5.2 N | ||||
| ED-x-5-22 | Slow 3NC | 30° | - | 5.2 N | ||||
Item No. | Dimensions
| Unit: mm | |||||
| ED-24 Thermoplastic End Flexible Rod | |||||
| Operating Characteristics | |||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
|
| ED-x-2-24 | Slow 2NC | 12° | - | 6.5 N | |
| ED-x-3-24 | Snap 1NC/1NO | 12° | - | 5.3 N | |
| ED-x-5-24 | Slow 3NC | 12° | - | 6.5 N | |
Item No. | Dimensions
| Unit: mm | |||||
| ED-241 Cat Whisker Type | |||||
| Operating Characteristics | |||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
|
| ED-x-2-241 | Slow 2NC | 12° | - | 6.5 N | |
| ED-x-3-241 | Snap 1NC/1NO | 12° | - | 5.3 N | |
| ED-x-5-241 | Slow 3NC | 12° | - | 6.5 N | |
Item No. | Dimensions
| Unit: mm | |||||
| ED-242 Wobble Stick Type | |||||
| Operating Characteristics | |||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
|
| ED-x-2-242 | Slow 2NC | 12° | - | 5.2 N | |
| ED-x-3-242 | Snap 1NC/1NO | 12° | - | 4.5 N | |
| ED-x-5-242 | Slow 3NC | 12° | - | 5.2 N | |
Item No. | Dimensions
| Unit: mm | ||||||||
| ED-25 Rod Lever Type | ||||||||
| Operating Characteristics | ||||||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
Positive Opening | Total Travel |
||
| Travel (min) |
Force (min) |
|||||||
| ED-x-1-25 | Slow 1NC/1NO | 30° | 41° | 1.8 N | 45° | 19.0 N | 80° | |
| ED-x-2-25 | Slow 2NC | 30° | - | 1.8 N | ||||
| ED-x-3-25 | Snap 1NC/1NO | 28° | - | 1.9 N | ||||
| ED-x-4-25 | Slow 2NC/1NO | 30° | 41° | 1.8 N | ||||
| ED-x-5-25 | Slow 3NC | 30° | - | 1.8 N | ||||
Item No. | Dimensions
| Unit: mm | ||||||||
| ED-27 Adjustable Roller Arm Type (Rubber roller) | ||||||||
| Operating Characteristics | ||||||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
Positive Opening | Total Travel |
||
| Travel (min) |
Force (min) |
|||||||
| ED-x-1-27 | Slow 1NC/1NO | 30° | 41° | 5.2 N | 45° | 19.0 N | 80° | |
| ED-x-2-27 | Slow 2NC | 30° | - | 5.2 N | ||||
| ED-x-3-27 | Snap 1NC/1NO | 28° | - | 4.5 N | ||||
| ED-x-4-27 | Slow 2NC/1NO | 30° | 41° | 5.2 N | ||||
| ED-x-5-27 | Slow 3NC | 30° | - | 5.2 N | ||||
Item No. | Dimensions
| Unit: mm | ||||||||
| ED-271 Two-Way Adjustable Roller Arm Type (Rubber roller) | ||||||||
| Operating Characteristics | ||||||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
Positive Opening | Total Travel |
||
| Travel (min) |
Force (min) |
|||||||
| ED-x-1-271 | Slow 1NC/1NO | 30° | 41° | 5.2 N | 45° | 19.0 N | 80° | |
| ED-x-2-271 | Slow 2NC | 30° | - | 5.2 N | ||||
| ED-x-3-271 | Snap 1NC/1NO | 28° | - | 4.5 N | ||||
| ED-x-4-271 | Slow 2NC/1NO | 30° | 41° | 5.2 N | ||||
| ED-x-5-271 | Slow 3NC | 30° | - | 5.2 N | ||||
Item No. | Dimensions
| Unit: mm | ||||||||
| ED-31 Push Plunger Type | ||||||||
| Operating Characteristics | ||||||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
Positive Opening | Total Travel |
||
| Travel (min) |
Force (min) |
|||||||
| ED-x-1-31 | Slow 1NC/1NO | 2.2mm | 3.0° | 7.26 N | 3.2mm | 19.0 N | 6.0mm | |
| ED-x-2-31 | Slow 2NC | 2.2mm | - | 7.42 N | ||||
| ED-x-3-31 | Snap 1NC/1NO | 1.9mm | - | 6.71 N | ||||
| ED-x-4-31 | Slow 2NC/1NO | 2.2mm | 3.0° | 7.26 N | ||||
| ED-x-5-31 | Slow 3NC | 2.2mm | - | 7.42 N | ||||
Item No. | Dimensions
| Unit: mm | ||||||||
| ED-32 Roller Plunger Type | ||||||||
| Operating Characteristics | ||||||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
Positive Opening | Total Travel |
||
| Travel (min) |
Force (min) |
|||||||
| ED-x-1-32 | Slow 1NC/1NO | 2.2mm | 3.0° | 7.26 N | 3.2mm | 19.0 N | 6.0mm | |
| ED-x-2-32 | Slow 2NC | 2.2mm | - | 7.42 N | ||||
| ED-x-3-32 | Snap 1NC/1NO | 1.9mm | - | 6.71 N | ||||
| ED-x-4-32 | Slow 2NC/1NO | 2.2mm | 3.0° | 7.26 N | ||||
| ED-x-5-32 | Slow 3NC | 2.2mm | - | 7.42 N | ||||
Item No. | Dimensions
| Unit: mm | ||||||||
| ED-62 Roller Lever Type | ||||||||
| Operating Characteristics | ||||||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
Positive Opening | Total Travel |
||
| Travel (min) |
Force (min) |
|||||||
| ED-x-1-62 | Slow 1NC/1NO | 3.0mm | 4.5mm | 5.21 N | 5.7mm | 19.0 N | 5.2mm | |
| ED-x-2-62 | Slow 2NC | 3.0mm | - | 5.26 N | ||||
| ED-x-3-62 | Snap 1NC/1NO | 2.9mm | - | 4.74 N | ||||
| ED-x-4-62 | Slow 2NC/1NO | 3.0mm | 4.5mm | 5.21 N | ||||
| ED-x-5-62 | Slow 3NC | 3.0mm | - | 5.26 N | ||||
Item No. | Dimensions
| Unit: mm | ||||||||
| ED-63 One-Way Roller Arm Lever Type | ||||||||
| Operating Characteristics | ||||||||
| Type | Contact Block | Operating travel (PT) |
PT2nd | Operating Force (OF) |
Positive Opening | Total Travel |
||
| Travel (min) |
Force (min) |
|||||||
| ED-x-1-63 | Slow 1NC/1NO | 4.0mm | 6.0mm | 6.37 N | 4.6mm | 19.0 N | 9.8mm | |
| ED-x-2-63 | Slow 2NC | 4.0mm | - | 6.98 N | ||||
| ED-x-3-63 | Snap 1NC/1NO | 3.6mm | - | 5.76N | ||||
| ED-x-4-63 | Slow 2NC/1NO | 4.0mm | 6.0mm | 6.37 N | ||||
| ED-x-5-63 | Slow 3NC | 4.0mm | - | 6.98 N | ||||
Certification
Download