Elf™
|
Description
The Elf is a tongue-operated (or key-operated) safety interlock switch designed to fit at the leading edge of sliding, hinged or lift-off guards. The Elf's unique miniature housing (only 75 x 25 x 29 mm (2.95 x 0.98 x 1.14 in.)) makes it the smallest interlock currently available. It is designed for smaller machines such as printers, copiers and domestic machinery which, until now, have been unable to use safety interlocks due to space restrictions. With its dual entry slots and rotatable head, the versatile Elf 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. The semi-flexible key allows the Elf to be used on small-radii doors (60 mm or 2.36 in.).
The Elf is available with a variety of contact configurations, conduit entry types and connectors. It is sealed to IP67 (watertight and dustproof). A blanking plug is supplied for the unused key entry.
Features
- Ideal for small, lightweight guards
- The smallest interlock switch available
- Contacts, 2 N.C. or 1 N.O. and 1 N.C.
- Eight possible actuator entry points, easy to install
- Environmental protection: IP67
- GD2 style available for demanding applications
Specifications
| Safety Ratings | |||||
| Standards | EN954-1, ISO13849-1, IEC/EN60204-1, NFPA79, EN1088, ISO14119, IEC/ EN60947-5-1, ANSI B11.19, AS4024.1 | ||||
| Safety Classification | Cat. 1 Device per EN954-1 Dual channel interlocks suitable for Cat. 3 or 4 systems | ||||
| Functional Safety Data ¬ Note: For up-to-date information, visit http://www.ab.com/safety |
B10d: > 2 x 106 operations at min. load PFHD: > 3 x10-7 MTTFd: > 385 years Dual channel interlock may be suitable for performance levels Ple or Pld (according to ISO 13849-1:2006) and for use in SIL2 or SIL3 systems (according to IEC 62061) depending on application characteristics |
||||
| Certifications | CE Marked for all applicable directives, cULus, TÜV, and CCC | ||||
| Outputs | |||||
| Safety Contacts T Direct Opening Action |
1 N.C. | 2 N.C. | |||
| Auxiliary Contacts | 1 N.O. | None | |||
| Thermal CurrentIlth | 5 A (10 A if A600) | ||||
| Rated Insulation Voltage | 2500V | ||||
| Switching Current @ Voltage, Min. | 5 mA @ 5V DC | ||||
| Utilization Category | |||||
| A600/AC-15 | (Ue) | 600V | 500V | 240V | 120V |
| (le) | 1.2 A | 1.4 A | 3.0 A | 6.0 A | |
| DC-13 | (Ue) | 24V | |||
| (le) | 2 A | ||||
| Operating Characteristics | |||||
| Break Contact Force, Min. | 6 N (1.35 lbf) | ||||
| Actuation Speed, Max. | 160 mm (6.29 in.)/s | ||||
| Actuation Frequency, Max. | 2 cycles/s | ||||
| Operating Radius, Min | 150 mm (5.90 in.) [60 mm (2.36 in.) with GD2 kit, min.] | ||||
| Operating Life @ 100 mA load | 1 x 106 operations | ||||
| Environmental | |||||
| Enclosure Type Rating | IP67 | ||||
| Operating Temperature [C (F)] | -20…+80° (-4…+176°) | ||||
| Physical Characteristics | |||||
| Housing Material | UL Approved glass-filled PBT | ||||
| Actuator Material | Stainless Steel | ||||
| Weight [g (oz)] | 60 (2.11) | ||||
| Color | Red | ||||
| ¬ Usable for ISO 13849-1:2006 and IEC 62061. Data other than B10d is based on: - Usage rate of 1op/10 mins., 24 hrs/day, 360 days/year, representing 51840 operations per year - Mission time/Proof test interval of 38 years T The safety contacts are described as normally closed (N.C.) i.e., with the guard closed, actuator in place (where relevant) and the machine able to be started. |
|||||
Product Selection
| Contact | Actuator Type | Cat. No. | |||||
| M16 Conduit | Connector§ | ||||||
| Safety | Auxiliary | Action | M16 | 1/2 inch NPT Adaptor | Connect to Distribution Box 4-Pin Micro (M12) |
Connect to ArmorBlock Guard I/O 5-Pin Micro (M12) § |
|
| 1 N.C. | 1 N.O. | BBM | Flat | 440K-E33036 | 440K-E33029 | 440K-E33074 | — |
| 90° | 440K-E33040 | 440K-E33030 | 440K-E33025 | — | |||
| GD2 Metal alignment guide w/semi-flex actuator | 440K-E33034 | 440K-E33031 | 440K-E33075 | — | |||
| — | 440K-E33014 | 440K-E33053 | 440K-E33076 | — | |||
| 2 N.C. | — | — | Flat | 440K-E33080 | 440K-E33037 | 440K-E33077 | 440K-E2NNFPS |
| 90° | 440K-E33041 | 440K-E33045 | 440K-E33024 | — | |||
| GD2 Metal alignment guide w/semi-flex actuator | — | 440K-E33046 | 440K-E33078 | 440K-E2NNAPS | |||
| — | 440K-E33047 | — | 440K-E33079 | — | |||
§ For connector ratings see Safety Switches and Connectors.
§ With a 5-pin micro (M12) connector, not all contacts are connected. See Typical Wiring Diagrams for wiring details.
Recommended Logic Interfaces
| Description | Safety Outputs | Auxiliary Outputs | Terminals | Reset Type | Power Supply | Cat. Page No. | Cat. No. |
| Single-Function Safety Relays for 2 N.C. Contact Switch | |||||||
| MSR127RP | 3 N.O. | 1 N.C. | Removable (Screw) | Monitored Manual | 24V AC/DC | MSR127RP/TP | 440R-N23135 |
| MSR127TP | 3 N.O. | 1 N.C. | Removable (Screw) | Auto./Manual | 24V AC/DC | MSR127RP/TP | 440R-N23132 |
| MSR30RT | 2 N.O. Solid State | 1 N.O. Solid State | Removable | Auto./Manual or Monitored Manual | 24V DC | MSR30RT/RTP | 440R-N23198 |
| Single-Function Safety Relays for 1 N.C. & 1 N.O. Contact Switch | |||||||
| MSR9T | 2 N.O. | 1 N.C. | Fixed | Auto./Manual | 24V AC/DC | MSR9T | 440R-F23027 |
| MSR33RT | 2 N.O. Solid State | 1 N.O. | Removable | Auto. or Monitored Manual | 24V DC SELV | MSR33RT/RTP | 440R-F23200 |
| Modular Safety Relays | |||||||
| MSR210P Base 2 N.C. only |
2 N.O. | 1 N.C. and 2 PNP Solid State | Removable | Auto./Manual or Monitored Manual | 24V DC from the base unit | MSR210P | 440R-H23176 |
| MSR220P Input Module | — | — | Removable | — | 24V DC | MSR220P | 440R-H23178 |
| MSR310P Base | MSR300 Series Output Modules | 3 PNP Solid State | Removable | Auto./Manual Monitored Manual | 24V DC | MSR310P | 440R-W23219 |
| MSR320P Input Module | — | 2 PNP Solid State | Removable | — | 24V DC from the base unit | MSR320P | 440R-W23218 |
Note: For additional Safety Relays connectivity, see Safety Relays.
For additional Safety I/O and Safety PLC connectivity, see Programmable Safety Solutions.
For application and wiring diagrams, see Safety Applications and Wiring Diagrams.
Connection Systems
| Description | Connection to Distribution Box 4-Pin Micro (M12) |
Connection to ArmorBlock Guard I/O 5-Pin Micro (M12) |
|
| 1 N.C. & 1 N.O. | 2 N.C. | 2 N.C. | |
| Cordset | 889D-F4AC-¬ | 889D-F4AC-¬ | — |
| Patchcord | 889D-F4ACDM-T | 889D-F4ACDM-T | 889D-F5ACDM-¬ |
| Distribution Box | 898D-P4‡ KT-DM4 | 898D-4‡ LT-DM4 | — |
| Shorting Plug | 898D-41KU-DM | 898D-41LU-DM | — |
| T-Port | 898D-43KY-D4 | 898D-43LY-D4 | — |
¬ Replace symbol with 2 (2 m), 5 (5 m), or 10 (10 m) for standard cable lengths.
T Replace symbol with 1 (1 m), 2 (2 m), 3 (3 m), 5 (5 m), or 10 (10 m) for standard cable lengths.
‡ Replace symbol with 4 or 8 for number of ports.
Note: For additional information, see Connection Systems.
Accessories
| Description | Dimensions | Cat. No. | |
|
Flat actuator, not to be used with metal alignment guide | Actuators¬ | 440K-A21014 |
|
90° actuator, not to be used with metal alignment guide | 440K-A21006 | |
|
Metal alignment guide with semi-flexible actuator | 440K-A21030 | |
|
Metal Alignment Guide | 440K-A21069 | |
|
Replacement Cover | Replacement Covers | 440A-A33085 |
|
Dust Cover | Dust Covers | 440K-A17182 |
Approximate Dimensions
Dimensions are shown in mm (in.). Dimensions are not intended to be used for installation purposes.
|
|
| Note: 2D, 3D and electrical drawings are available on www.ab.com/. | |
Typical Wiring Diagrams
| Description | 1 N.C. & 1 N.O. | 2 N.C. | |
| Contact Configuration |
|
|
|
| Contact Action |
|
|
|
|
BBM | ||
| 4-Pin Micro (M12) |
|
|
|
| 5-Pin Micro (M12) For ArmorBlock Guard I/O |
— |
|
|
| Cordset 889D-F4AC-¬ |
Brown | Safety A | Safety A |
| Blue | |||
| White | Aux A | Safety B | |
| Black | |||
| ¬ Replace symbol with 2 (2 m), 5 (5 m) or 10 (10 m) for standard cable lengths. | |||