Nvent Caddy speed link User manual

SLK LOCKING DEVICE

nVent CADDY

Speed Link Manual

CONTENTS

1. Wire Rope Support Overview...............................................................................................................................................................................3

A. Using Wire Rope.....................................................................................................................................................................................3

B. The Speed Link Manual ........................................................................................................................................................................3

C. SLK Features...........................................................................................................................................................................................4

D. SLK Mechanism .....................................................................................................................................................................................5

2. Typical Speed Link Installation............................................................................................................................................................................6

A. Installation ...............................................................................................................................................................................................6

B. Adjustment ..............................................................................................................................................................................................7

C. Examples .................................................................................................................................................................................................8

D. Installation tips .....................................................................................................................................................................................11

3. Special Applications............................................................................................................................................................................................13

A. Splicing...................................................................................................................................................................................................13

B. Minimum Bending Radius ..................................................................................................................................................................15

4. Visibility / Angle Schematic...............................................................................................................................................................................16

A. Visibility ..................................................................................................................................................................................................16

B. Angle.......................................................................................................................................................................................................17

5. Speed Link Certifications and Listings............................................................................................................................................................19

6. Additional Warnings and Safety Instructions ............................................................................................................................................... 20

nVent.com/CADDY |3

1. Wire Rope Support Overview

A. Using Wire Rope

Wire rope support systems are beneficial because they are flexible, adaptable, and lightweight. The nVent CADDY Speed Link Universal

Support System offers an extensive line of products designed to be the most effective wire rope support solution on the market.

However, in order to reap the unique benefits of the system, it is important to select the correct locking device and end fitting for any

project.

Speed Link has two main tool-free locking devices: the SLK and the SLS. The SLS locking device is best suited for use in trapeze

applications with strut, C-channel, signage, and HVAC units. The SLK is a double-barreled locking device that holds the wire in each

direction. It can be wrapped around structures or loads (or both at the same time)or arranged in a splice or infinite loop. Consult

nVent.com/CADDY for more information on each locking device.

B. The Speed Link Manual

In this document, you will find a detailed description of the Speed Link SLK locking device. has to offer and the best method for

installation for each type of cable management system as well as a detailed breakdown of unique benefits associated with each method,

images, diagrams and a basic step-by-step installation process.

This document is one part of a series of Speed Link Manuals designed around specific products and applications. Although this

document focuses specifically on different cable pathway applications, several other resources are available under the “Documents”

tab on a Speed Link product page on nVent.com/CADDY. The documents are always being updated, and new sections are continuously

being released.

For more information on specific products or view the other sections of the Speed Link Manual, visit nVent.com/CADDY.

nVent.com/CADDY |4

1. Wire Rope Support Overview

C. SLK Features

The locking device is the piece of hardware that holds the wire loop in place. The Speed Link SLK locking device is designed to be the

safest, most aesthetical, and easiest locking device on the market. The guide below shows several of the product’s innovative features

and the overall goal of each one.

EASE OF USE FEATURES

Arrows on the device clearly

demonstrate the correct direction

to push the wire

Speed Link is lighter, faster

to install, easier to transport

and generates less waste than

alternative hanging methods

Available in pre-cut lengths with

11 end-fittings or in bulk with

spools of wire to adapt to the

end-users’ needs and applications

Two tool-free locking devices are

available for three wire sizes

• SLK2 compatible with 1.5mm

and 2mm wire

• SLK3 compatible with 3mm wire

SAFETY FEATURES

Keyless release tubes are

designed to allow safe and easy

adjustment, even while wearing

bulky gloves

Two jaws grip the wire inside

the device, holding the wire

more securely than single-cam

devices common among most

competitors. This rare gripping

mechanism allows it to be used

in unique applications such as

splicing / joining 2 wires, infinite

loop etc.

UL Listing on all 11 end-fittings

for pre-cut lengths, SMACNA

approved for Hook and Loop

end-fittings. Intertek Load Test

report available upon request.

AESTHETICAL FEATURES

Low-profile locking device

provides a positive aesthetic

to a finished project

The locking device can

accommodate wire rope at

up to 90 degrees, allowing

it to be positioned closer to

the load than other locking

devices on the market, hiding

it from view and creating

a much more aesthetically

pleasing installation.

The color of the line

corresponds to the larger

goal of each feature:

SAFETY FEATURES

AESTHETICAL FEATURES

EASE OF USE FEATURES

nVent.com/CADDY |5

1. Wire Rope Support Overview

D. SLK Mechanism

The locking device is the piece of hardware that holds the wire loop in place. Locking devices may look or install differently based on

the manufacturer. For example, some locking devices are sold with small tools called “keys” that unlock or free the cable. Other locking

devices may be keyless and simply require a manual manipulation to move the cable through it. Much like the cable, locking devices

have their own static load rating. The load rating can be different than that of the cable or end fitting, and installers should default on the

lowest in the load path.

Inside the locking device, the wire is typically gripped with one or two spring loaded cams or jaws that hold the wire in place. A single-

cam device holds the wire by pressing it into the inside wall of the housing. A double-jaw device holds the wire by clamping it between

two spring loaded jaws. Double-jaw devices are designed to have a stronger grip on the wire than single-cam devices.

Speed Link locking device combines all the best options:

• Double-jaw design for better performance

• Push/pull keyless release allows easy adjustments

• Keyless release tubes are easy to operate while wearing bulky protective gloves

• Release tubes cannot be disengaged by mistake as opposed to other release mechanisms

•  Low-prolelockingdeviceminimizesvisualimpact

• Cable spread of 90 degrees allows positioning the device closer to the load*

• Double-sided locking mechanism enables simple height adjustment

Material: Steel; Polypropylene; Zinc Alloy

* For more information on cable spread, refer to page 16.

Wire Rope

Diameter (mm) Static Load Locking

Device

1.5 44 lbs. 195 N SLK2

2 160 lbs. 440 N

3 350 lbs. 880 N SLK3

nVent.com/CADDY |6

2. Typical Speed Link SLK Installation

A. Installation

Installation of Speed Link is quick and easy.

STEP 1: Clip Speed Link hook into hole of nVent CADDY Fastener or wrap around a beam, strut, etc.

STEP 2: Insert wire rope into l ocking device.

STEP 3: Attach wire rope to load.

STEP 4: Insert wire rope back into locking device.

STEP 5: (If necessary)Adjust by pulling on the plastic release tubes.

nVent.com/CADDY |7

↓

N/LB

↑

SLK

SLS

Toggle

SLK

SLS

12 3 4 5

4 5 6 7

↑

N/LB

↑

N/LB

↑

Wire Rope Size

Toggle / Hole

1.5mm

1/4" [6mm]

2mm

11/32" [9mm]

TECHNICAL SUPPORT:

www.erico.pentair.com

CFS464_C

INSTRUCTION SHEET

2 OF 2

Pentair, CADDY, ERICO CADWELD, ERICO CRITEC, ERICO, ERIFLEX, and LENTON are owned by Pentair or its global affiliates. All other trademarks

are the property of their respective owners. Pentair reserves the right to change specifications without prior notice.

↓

N/LB

↑

SLK

SLS

Toggle

SLK

SLS

12 3 4 5

4 5 6 7

↑

N/LB

↑

N/LB

↑

Wire Rope Size

Toggle / Hole

1.5mm

1/4" [6mm]

2mm

11/32" [9mm]

TECHNICAL SUPPORT:

www.erico.pentair.com

CFS464_C

INSTRUCTION SHEET

2 OF 2

Pentair, CADDY, ERICO CADWELD, ERICO CRITEC, ERICO, ERIFLEX, and LENTON are owned by Pentair or its global affiliates. All other trademarks

are the property of their respective owners. Pentair reserves the right to change specifications without prior notice.

The process illustrated above shows proper installation when wrapping Speed Link with a Hook End-Fitting around a beam. Installing

Speed Link this way will allow the installer to have the height adjustability at the load (easier than having it at the structure).

2. Typical Speed Link SLK Installation

Adjustment up can be made by:

1. pulling the free end of the cable up through the locking device

2. raising the locking device on the loaded wire.

Adjustment down is made by supporting the load, gripping the device, releasing the loaded cable side release tube, and lowering

the device.

B. Adjustment

nVent.com/CADDY |8

C. Examples

2. Typical Speed Link SLK Installation

i. Beam Clamp

A variety of nVent CADDY Beam Clamps may be used to

attach the Speed Link system.

iii. Eyebolts

Wood screw and machine-thread eyebolts will serve as an

anchor for Speed Link.

v. Easy Strut Clip (ESC)

The nVent CADDY Easy Strut Clip provides a “portable hole”

along strut runs for attachment of the Speed Link hook.

ii. “C” and “Z” Purlin Clips

nVent CADDY Purlin Clips can be easily installed with the

nVentCADDYVAFTtoolfromtheground.

iv. HangerMate®

The HangerMate anchors may be used to attach the Speed Link

system.

vi. Without Fasteners

The Speed Link wire rope can be looped around any structure/

substructure using the loop or hook end-fittings or using the

Speed Link locking device.

nVent.com/CADDY |9

2. Typical Speed Link SLK Installation

vii. Cable Tray

Speed Link can be attached to cable tray (solid and

ventilated tray, ladder tray, center rail tray and wire basket).

ix. Plumbing

Speed Link speeds up the installation of compressed air

piping, water and gas pipes.

xi. Signage

Riggers have just discovered the ideal system to suspend

signage: Speed Link.

viii. Lighting and Luminaires

Lighting fixtures (luminaires)are ideal applications for

Speed Link.

x. HVAC

Speed Link puts an end to time-consuming strap hanging

of duct.

nVent.com/CADDY |10

2. Typical Speed Link SLK Installation

Speed Link attaches to structure differently depending on the end type. For fittings that attach at the load, the wire is looped around

the structure and fed through the locking device. When end fittings attach at the structure, like the loop or toggle end fitting, the locking

device is on the load side of the wire.

nVent.com/CADDY |11

STEP 1: Pinch the free end of the cable against the loaded cable above the locking device. This will

provide a temporary support for the load and hold the position of the cable. Meanwhile, grip the locking

device firmly and push down on the release tube on the loaded side of the cable.

2. Typical Speed Link SLK Installation

D. Installation Tips

i. Adjustment for Concealment

For a locking device installed above a load in the standard choker-style arrangement, the device can be easily adjusted down close to the

load without changing the elevation of the suspended load.

STEP 2: Slide the locking device down the cable to a position closer to the load.

STEP 3: Let go of the release tube to allow the locking device to secure to the cable.

nVent.com/CADDY |12

ii. Increasing Safety Factor

To determine the system working load: The max working load is determined by the component with the lowest allowable working load.

To determine the system working load with a single safety factor: In some cases, the hanging system will be made up of components

with a variety of safety factors, working loads, and/or ultimate loads. It may be convenient to convert the working loads of all

components to a safety factor of 5. This allows the minimum working load with safety factor 5 to be determined.

For components with safety factor other than 5: multiply the working load by the given safety factor. Divide the result by 5. This gives

the working load at safety factor 5. For components with ultimate load only: divide the ultimate load by 5. It is recommended to round

down to find the working load at safety factor 5. Once the working load at safety factor 5 is found for each component, those loads can be

compared to the Speed Link working loads to determine the limiting component for the system working load at safety factor 5.

Increase the safety factor by reducing the working load. For some applications (e.g., theater stages), a larger safety factor may be

required. The formula is:

Reduced Working Load=Maximum Working Load×5/Required Safety Factor

TheRequiredSafetyFactormustbe≥5

Example: If the Required Safety Factor is 10, then the Reduced Working Load for a 2 mm wire rope is 50 lbs. [222 N] instead of the

Maximum Working Load of 100 lbs. [444 N]

2. Typical Speed Link SLK Installation

nVent.com/CADDY |13

3. Special Applications

A. Splicing

i. Introduction to Splicing

Extend the available cable lengths, or create a cable assembly with integral attachments at both ends, by joining two Speed Link

wire ropes with a locking device.

By inserting two cables into the locking device, as shown below, they can be joined to create new combinations of lengths and end

fittings.

An example of a splicing application is combining a cable with a Y-hook end and a cable with a toggle end. The Y-hook can be connected

to two sides of a light or cable tray. The toggle can be inserted into a hole on a metal deck ceiling. The locking device, placed in the

middle, splices the two cables together and provides height adjustment.

Splicing differs from normal cable hanging in that there is only one grip on each cable as opposed to the normal two grips. Because of

this difference, the load rating is reduced, but maintains a safety factor of 5. See the table below for reduced working loads.

nVent.com/CADDY |14

3. Special Applications

ii. Splicing Application Load Rating

Device Wire Rope

Diameter (mm) Working Load

SLK2 1.5 35 lbs 155 N

SLK2 2 65 lbs 290 N

SLK3 3 150 lbs 670 N

Splicing Test Results Compared to Competitor

Part No. Cable size

(mm)

Specified

Load (lbs)

Ave. Load

(lbs)

Min. Load

(lbs)

Max Load

(lbs)Count Ave. % of

Specified Load

SLK2 2500 414.9 398.5 437 583%

Competitor “G” 2 2 500 299 276 327 545%*

Part No. Cable size

(mm)

Specified

Load (N)

Ave. Load

(N)

Min.

Load (N)

Max

Load (N)Count Ave. % of

Specified Load

SLK2 22224 1846 1773 1944 583%

Competitor “G” 2 2 2224 1330 1228 1455 545%*

Based on private testing while using the product for the splicing application.

*45% is based on manufacturer recommendation for installation.

iii. Infinite Loop Application

An infinite loop is a cable application where the cable is looped around the structure and the load; each end of the cable is inserted into

the locking device. The result is a continuous loop of cable secured and adjusted by the locking device.

The infinite loop is a convenient means to hang in conditions where there is low overhead working space between the load and the

ceiling.

The infinite loop is the strongest configuration of Speed Link. Because the cable is doubly supporting the load, the working loads are

substantially higher than the standard installation method, yet still maintaining a safety factor of 5. See the table above for allowable

working loads.

Device Wire Rope

Diameter (mm) Working Load

SLK2 1.5 90 lbs 400 N

SLK2 2160 lbs 700 N

SLK3 3 350 lbs 1550 N

nVent.com/CADDY |15

3. Special Applications

B. Minimum Bending Radius

i. 122 Application

ii. 4H Application

By attaching to structure with another nVent CADDY product, the height

adjustment of the system is moved on the end of the rope that is closer to

the load. This makes it much easier to make fine height adjustments because

installers do not have to estimate the amount of rope that needs to be added

or removed at the structure. It is also much easier for the installer to lift the

application at the load and adjust the wire.

See calculations in the table below as an example, considering a structural

attachment with a safety factor of 3:1.

Device

Wire

Diameter

(mm)

Maximum

Ultimate Load

Load when

Safety Factor = 5

SLK2 1.5 220 lbs 978 N 44 lbs 195 N

SLK2 2 500 lbs 2224 N 100 lbs 440 N

SLK3 3 600 lbs 3600 N 120 lsb 720 N

Device Wire Diameter

(mm) Load

SLK2 1.5 44 lbs 195 N

SLK2 275 lbs 330 N

SLK3 3145 lbs 645 N

SLK2

4H24

Working load 1

Safety Factor 1

Working load 2

Safety Factor 2

Max Load 1 = Working Load 1 x Safety Factor 1

Max Load 2 = Working Load 2 x Safety Factor 2

System Working Load

= Min Ultimate load /

Max Safety Factor

B Size

Scale

DWG

REV

DF-SL-APP

1:1

SHT

5 7

Tolerance (Inch) Unless Noted

Tolerance [mm] Unless Noted

Title:

CADDY

LOCKING DEVICE

1/32

0.01

0.005

0.3

0.13

Angular Tolerance:

One Place Decimal:

Two Place Decimal:

Angular Tolerance:

Fractional Tolerance:

Two Place Decimal:

Three Place Decimal:

Third Angle Projection

Pentair, CADDY, ERICO CADWELD, ERICO CRITEC, ERICO, ERIFLEX, and LENTON are owned by Pentair or its global affiliates. All other trademarks are the property of their respective owners.

Pentair reserves the right to change specifications without prior notice.

DF-SL-APP _ A

TECHNICAL SUPPORT:

www.erico.pentair.com

122

CHECK SAFETY FACTOR

Of Any Structural Attachment

SLK2

For tested Application,

Publish working load

Device

Cable

Working Load

SLK2

1.5mm

44 196

SLK2

2.0mm

75 330

SLK3

3.0mm

145 645

B Size

Scale

DWG

REV

DF-SL-APP

1:1

SHT

4 7

Tolerance (Inch) Unless Noted

Tolerance [mm] Unless Noted

Title:

CADDY

LOCKING DEVICE

1/32

0.01

0.005

0.3

0.13

Angular Tolerance:

One Place Decimal:

Two Place Decimal:

Angular Tolerance:

Fractional Tolerance:

Two Place Decimal:

Three Place Decimal:

Third Angle Projection

Pentair, CADDY, ERICO CADWELD, ERICO CRITEC, ERICO, ERIFLEX, and LENTON are owned by Pentair or its global affiliates. All other trademarks are the property of their respective owners.

Pentair reserves the right to change specifications without prior notice.

DF-SL-APP _ A

TECHNICAL SUPPORT:

www.erico.pentair.com

nVent.com/CADDY |16

4. Visibility / Angle Schematic

A. Visibility

Competitor “B”: 39°

Competitor “G”: 60°

Speed Link: 90°

Three wire rope support locking devices

are installed according to manufacturer

instructions.

How close a locking device can be placed to a load can be expressed in several different ways. One method is to measure the angle

between the legs of cable wrapping around the load. The greater the angle, the closer the locking device is to the load. The closer

the device is to the load, the less visible it is when viewed from the floor. This may be of concern in installations trying to achieve an

architectural aesthetic.

What limits how great the angle between the cables under a locking device can be is the ability of the device to grip cables with additional

side loads imparted from the angles. Some devices slip or break. Others release the load. Speed Link has the greatest allowable angle on

the market; 90°. The patented flexible release tubes conform to the bend in the cable without unlocking the gripping jaws.

Safety: Speed Link allows a 90° spread between the cables under the locking device. This angle has been found to be a practical limit

on installation for preserving working space for adjustment. It would be difficult for the installer to surpass 90° on the installation of

Speed Link. Competitive devices have maximum allowable angles of 60° or even 39°. The installer could easily create a non-conforming

installation and potential safety hazard if angle or distance measurements are not done carefully.

nVent.com/CADDY |17

4. Visibility / Angle Schematic

B. Angle

Speed Link can provide angled support, even from sloped and vaulted ceilings. The maximum angle is 60° from the vertical axis. The

working load has to be reduced depending on the angle according to the following table:

In an Angled Sling-Type Installation application the working load is valid for each wire rope.

Working Load Reduction by Angle (lbs)

Angle

Reduction

Working Load

for

1.5 mm

Working Load for

2 mm

Working Load for

3 mm

0° None 44 100 200

15° 3% 43 97 193

30° 13% 38 87 173

45° 29% 31 71 141

60° 50% 22 50 100

Working Load Reduction by Angle (N)

Angle

Reduction

Working Load

for

1.5 mm

Working Load for

2 mm

Working Load for

3 mm

0° None 195 440 890

15° 3% 188 425 860

30° 13% 169 381 771

45° 29% 138 311 629

60° 50% 98 220 445

15°

30°

45°

60°

.18in

4.6mm

Working Load For Angled Sling-Type Installations

0 15 30 45 60

Factor

0.97 0.87 0.71 0.50

1.5mm

88 lb

390N

85 lb

377 N

76 lb

338 N

62 lb

276 N

44 lb

195 N

2.0mm

200 lb

880 N

193 lb

850 N

173 lb

762 N

141 lb

622 N

100 lb

440 N

3.0mm

400 lb

1780 N

386 lb

1719 N

346 lb

1542 N

283 lb

1259 N

200 lb

890 N

100 97 87 71 50

B Size

Scale

DWG

REV

DF-SL-APP

1:1

SHT

2 7

Tolerance (Inch) Unless Noted

Tolerance [mm] Unless Noted

Title:

CADDY

LOCKING DEVICE

1/32

0.01

0.006

0.3

0.15

Angular Tolerance:

One Place Decimal:

Two Place Decimal:

Angular Tolerance:

Fractional Tolerance:

Two Place Decimal:

Three Place Decimal:

Third Angle Projection

Pentair, CADDY, ERICO CADWELD, ERICO CRITEC, ERICO, ERIFLEX, and LENTON are owned by Pentair or its global affiliates. All other trademarks are the property of their respective owners.

Pentair reserves the right to change specifications without prior notice.

DF-SL-APP _ A

TECHNICAL SUPPORT:

www.erico.pentair.com

Working Load For Angled Sling-Type Installations (lbs)

Angle 015 30 45 60

Load % 100% 97% 87% 71% 50%

1.5 mm 88 85 76 62 44

2.0 mm 200 193 173 141 100

3.0 mm 400 386 346 283 200

Reduced by

None 3% 13% 29% 50%

Working Load For Angled Sling-Type Installations (N)

Angle 015 30 45 60

Load % 100% 97% 87% 71% 50%

1.5 mm 390 377 338 276 195

2.0 mm 880 850 762 622 440

3.0 mm 1780 1719 1542 1259 890

Reduced by

None 3% 13% 29% 50%

nVent.com/CADDY |18

4. Visibility / Angle Schematic

15° 30°

45°

60°

look at this as a sling

Two devices are required for this installation

Working Load per Device For Angled Installations

0°

15° 30° 45° 60°

Factor

0.97 0.87 0.71 0.50

1.5mm

44 lb

195 N

43 lb

188 N

38 lb

169 N

31 lb

138 N

22 lb

98 N

2.0mm

100 lb

440 N

97 lb

425 N

87 lb

381 N

71 lb

311 N

50 lb

220 N

3.0mm

200 lb

890 N

193 lb

860 N

173 lb

771 N

141 lb

629 N

100 lb

445 N

100 97 87 71 50

B Size

Scale

DWG

REV

DF-SL-APP

1:1

SHT

1 7

Tolerance (Inch) Unless Noted

Tolerance [mm] Unless Noted

Title:

CADDY

LOCKING DEVICE

1/32

0.01

0.006

0.3

0.15

Angular Tolerance:

One Place Decimal:

Two Place Decimal:

Angular Tolerance:

Fractional Tolerance:

Two Place Decimal:

Three Place Decimal:

Third Angle Projection

Pentair, CADDY, ERICO CADWELD, ERICO CRITEC, ERICO, ERIFLEX, and LENTON are owned by Pentair or its global affiliates. All other trademarks are the property of their respective owners.

Pentair reserves the right to change specifications without prior notice.

DF-SL-APP _ A

TECHNICAL SUPPORT:

www.erico.pentair.com

Working Load per Device For Angled Installations (lbs)

Angle 015 30 45 60

Factor 10.97 0.87 0.71 0.50

1.5 mm 44 43 38 31 22

2.0 mm 100 97 87 71 50

3.0 mm 200 193 173 141 100

Reduced by None 3% 13% 29% 50%

Working Load per Device For Angled Installations (N)

Angle 015 30 45 60

Factor 10.97 0.87 0.71 0.50

1.5 mm 195 188 169 138 98

2.0 mm 440 425 381 311 220

3.0 mm 890 860 771 629 445

Reduced by None 3% 13% 29% 50%

nVent.com/CADDY |19

5. Speed Link Certicates & Listings

Speed Link is listed with UL for Cable and Conduit Supports

and for Luminaires.

Multiple independent tests of Speed Link locking devices

and accessories have been conducted by Intertek. Test reports are

available upon request.

Speed Link has verification by SMACNA for alternatives

to duct hangers.

Our powerful portfolio of brands:

CADDY ERICO HOFFMAN RAYCHEM SCHROFF TRACER

nVent.com/CADDY

WARNING: nVent products shall be installed and used only as indicated in nVent’s product instruction sheets and training materials. Instruction sheets are available at nVent.com/CADDY and from your nVent customer service representative. Improper

installation, misuse, misapplication or other failure to completely follow nVent’s instructions and warnings may cause product malfunction, property damage, serious bodily injury and/or death, and void your warranty.