Installation InstructionsOriginal Instructions

Elf and Cadet 3 Tongue Interlock SwitchesCatalog Numbers 440K-C21048, 440K-C21050, 440K-C21052, 440K-C21054, 440K-C21055, 440K-C21057, 440K-C21058, 440K-C21060, 440K-C21061, 440K-C21062, 440K-C21065, 440K-C21067, 440K-C21068, 440K-C21070, 440K-C21074, 440K-C21080, 440K-C21088, 440K-C21089, 440K-C21090, 440K-C21091, 440K-C21092, 440K-C21093, 440K-C21094, 440K-C21095, 440K-C21096, 440K-C21097, 440K-C21098, 440K-E2NNAPS, 440K-E2NNFPS, 440K-E33014, 440K-E33024, 440K-E33025, 440K-E33029, 440K-E33030, 440K-E33031, 440K-E33034, 440K-E33036, 440K-E33037, 440K-E33040, 440K-E33041, 440K-E33045, 440K-E33046, 440K-E33047, 440K-E33053, 440K-E33074, 440K-E33075, 440K-E33077, 440K-E33078, 440K-E33079, 440K-E33080

Summary of ChangesThis publication contains new and updated information as indicated in the following table.

InstallationInstallation of the Elf™ and Cadet™ 3 Tongue Interlock Switches must be in accordance with the following steps and stated specifications and should be carried out by suitably competent personnel. The unit is not to be used as a mechanical stop. Guard stops and guides must be mounted.

Adherence to the recommended maintenance instructions forms part of the warranty.

Specifications

MaintenanceEvery week, check the alignment of the actuator to the switch and the correct operation of the switching circuit. Also check for signs of abuse or interference. Inspect the switch casing and actuator for damage. Replace if needed.

At least every six months, isolate all power. Remove the lid and end cover. Inspect all terminals for tightness. Clean out any accumulation of fine dirt. Check for any sign of wear of damage, for instance, actuator wear, cam assembly wear, contact oxidization and replace if needed. Replace cover and tighten screws to specified settings. Reinstate the power and check for correct operation. Reapply tamper evident varnish or similar compound for mountings.

RepairIf there is any malfunction or damage, no attempts at repair should be made. The unit should be replaced before machine operation is allowed. DO NOT DISMANTLE THE UNIT.

Topic PageUpdated Specifications table 1Added UL 508 Information section 2Added Attention table 3

ATTENTION: The presence of spare actuators can compromise the integrity of the safety systems. Personal injury or death, property damage or economic loss can result. Appropriate management controls, working procedures, and alternative protective measures should be introduced to control their use and availability.

WARNING: Do not defeat, tamper, remove, or bypass this unit. Severe injury to personnel could result.

Attribute Value

Safety contacts (Elf)Safety contacts (Cadet 3)

1 N.C. or 2 N.C. direct opening action2 N.C. or 3 N.C. direct opening action

Thermal current 10 AAuxiliary contacts 1 N.O.Switching current/voltage 3 mA/18V, min2

Contact rating

A600/AC-15 240V/3 A, 120V/6 A, N150/DC13 24V/2 AM12 QD (4-pin): 250V/4 AM12 QD (5-pin): 60V/4 AM12 QD (6-pin): 30V/2 AM12 QD (8-pin): 30V/2 A

Input 240V, 24V, 250V, 60V, 30V, 30VIngress protection rating IP67Operating temperature -20…+80 °C (-4…+176 °F)Mechanical life 1,000,000 operations

Torque settings, max1.4 N•m (12.39 lb•in) mounting bolts1.2 N•m (10.62 lb•in) lid screws1.0 N•m (8.85 lb•in) terminal screws0.57 N•m (5.04 lb•in) head bolts

IMPORTANT After installation and commissioning, the actuator, switch, and switch lid mounting screws should be coated with tamper evident varnish or similar compound.

Attribute Value

Elf and Cadet 3 Tongue Interlock Switches Installation Instructions

The products shown in this document, conform with the Essential Health and Safety Requirements (EHSRs) of the European Machinery

Directive. These products are third-party certified to EN 60947-5-1 and EN ISO 14119.

Declaration of Conformity and certification: rok.auto/certifications.

ISO 14119 defines types of interlocking devices and coding.

UL 508 Information• When used in elevated ambients, temperature rating of field wiring shall

not be less than ambient.• Use copper conductors only. • Use polymeric conduit only. End of line device.• Use only one conduit entrance for field connections.

Mounting

Key Placement

Approximate DimensionsFigure 1 - Elf Tongue Interlock Switch Dimensions [mm (in.)]

Figure 2 - Cadet 3 Tongue Interlock Switch Dimensions [mm (in.)]

Figure 3 - Key Dimensions [mm (in.)]

Product Type Coding440K 2 Low

ATTENTION: Discard the plastic transit plugs (shipped with select conduit models only) at installation and replace with UL Listed outlet box plugs or the equivalent.

1 x M16

2 x M5

2 x M41.4 N•m

(12.39 lb•in)

6 (0.24)7.5 (0.29)

1 (0.04)2.5 (0.098)

1 (0.04)2.5 (0.098)

4 (0.1

6)4.5

(0.18

)

25 (0.98) 75 (2.95)

29 (1

.14)

12.5

(0.49

)

18 (0

.71)

16.5

(0.65

)

13 (0

.51) 6 (

0.24)

12.5

(0.49

)

17.5 (0.69)

2 x M44 (0.16)

34.5 (1.36)3 (0.12)

36 (1.42)

4.5 (0.18)1 x M16

13 (0.51)6 (0.24)

90.5 (3.56)38.4 (1.51)36.4 (1.43)34.4 (1.35)

4.5 (0.18)

13(0.51)

20 (0

.79)

22 (0

.87)

4.5 (0

.18)

4 (0.1

6)

25 (0

.98)

4 (0.16)

13 (0.51)

2 x M41 x M16

31 (1

.22)

13(0.51) 30

.4 (1

.2)25

(0.98

)

12 (0.47)

M4

25 (0.59)15 (0.98)

3 (0.12)

Cat. No. 440K-A21014

8.75 (0.34)18.25 (0.72)

M4

23 (0.91)

1 (0.04)3 (0.12)

29 (1

.14)

8 (0.3

1)3 (

0.12)

7.5 (0.3)24 (0.94)

12(0.47)

Cat. No. 440K-A21006

4 (0.1

6)

13.5 (0.53)

3 (0.1

2)25

(0.98

)

12 (0.47)

55.5 (2.19)

15.5

(0.61

)14

(0.55

)40

(1.57

)

8.5 (0

.33)

40 (1.57)

Cat. No. 440K-A21030

2 Rockwell Automation Publication 440K-IN001D-EN-P - July 2020

Elf and Cadet 3 Tongue Interlock Switches Installation Instructions

Head Rotation

Pinouts

Wiring

ATTENTION: Improper selection or installation of the devices affects the integrity of the safety systems.Personnel injury or death, property damage or economic loss can result.Comply with ISO 14119 including selection, accessibility to the installation, arrangement and fastening, possible substitute actuation, motivation to defeat, and actuation mode.Management controls, working procedures, training, and additional protective measures should be used to minimize the motivation to defeat and to manage the use and availability of spare actuators.Comply with ISO 13857 and ISO 13855 for guard openings and minimum (safe) distances.Comply with IEC 62061 or ISO 13849-1 and ISO 13849-2 for functional safety.

0.57 N•m (5.04 lb•in) BD

C

A

1112

2324

2 1

13

24

3 4

1112

2122

2 1

13

24

3 4

1112

2122

3334

1 5

15

26

34

62 4

3

1112

2122

3132

15

26

34

1 56

2 43

Elf QD Elf QD Cadet 3 QD Cadet 3 QD

1112

2324

1112

2122

1112

2122

3334

1112

2122

3132

Cadet 3Elf Cadet 3Elf

1112

2122

12

451112

2122

12

45

3132 Safety C

25 134

Safety A

Safety A

N/A

Safety B

Safety B

5-pin Micro (M12)for ArmorBlock® Guard I/O™

Cadet 3Elf

==

3.8

4.2

11/1223/24

0 mm6

==

411/1221/22

0 mm6

==

3.811/1221/22

0 mm

4.533/34

==

3.811/1221/22

0 mm

3.333/34

==

3.811/1221/22

0 mm

31/32

Cadet 3Elf Cadet 3 Cadet 3Elf

Rockwell Automation Publication 440K-IN001D-EN-P - July 2020 3

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Publication 440K-IN001D-EN-P - July 2020 | Supersedes Publication 440K-IN001C-EN-P-August 2019Copyright © 2020 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.

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At the end of life, this equipment should be collected separately from any unsorted municipal waste.

CONFIDENTIAL AND PROPRIETARY INFORMATION. THIS DOCUMENT CONTAINS CONFIDENTIAL AND PROPRIETARY INFORMATION OF

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