HILTI W6-3 SN8 Electrical Connection Systems Instructions
- September 28, 2024
- HILTI
Table of Contents
HILTI W6-3 SN8 Electrical Connection Systems
Specifications :
- Product: X-BT-ER Electrical Connection Systems
- Fastener Material: S31803 (1.4462) equivalent to A4 / AISI grade 316
- Stainless nuts and lock washer included
- Available Sizes: W6/3 SN8, W6/7 SN 8, W10/7 SN 8
Product Description :
X-BT-ER stainless steel threaded studs are designed for electrical connections
under permanent current, short circuit current, and lightning current
conditions. They are suitable for electrical grounding, bonding, and lightning
protection in corrosive environments.
Material Specifications :
- Shank and Thread: S31803 (1.4462) equivalent to A4 / AISI grade 316
- SN Washer: S31635 (X2CrNiMo 17-12-2, 1.4404)
- Sealing Washer: Elastomer, black; resistant to UV, salt water, etc.
- Nuts & Lock Washers: Equivalent to A4 / AISI grade 316 material
- Removable Guide Sleeve: Plastic
Technical Data :
- Maximum Allowable Permanent Current: 40A
- Maximum Short Circuit Current (1s): W10/7 SN 8 = 1250A, W6/7 SN 8 = 1800A
- Recommended Cable Size for Permanent Current: ≤10mm2 copper (8AWG)
- Recommended Cable Size for Short Circuit Current (1s): ≤10mm2 copper (8AWG)
Installation Instructions :
- Ensure the surface for installation is clean and free of debris.
- Insert the X-BT-ER threaded stud into the designated location.
- Secure the stud using the included stainless nuts and lock washer.
- Follow recommended cable sizes and connectors for electrical connections.
Ordering Information :
Contact Hilti, Inc. at the provided address or visit the website for ordering
details.
FAQ :
-
Q: What is the maximum short circuit current for X-BT-ER W6/3 SN 8?
A: The maximum short circuit current for X-BT-ER W6/3 SN 8 is 1800A for a period of 1 second. -
Q: Can thicker cables be used with X-BT-ER products?
A: Thicker cables can be used as long as the maximum allowable current ratings are not exceeded and cable lug thickness guidelines are followed.
The following pages are an excerpt from the North American Product Technical
Guide, Volume 1: Direct Fastening Technical Guide, Edition 24.
Please refer to the publication in its entirety for complete details on this
product including data development, base materials, general suitability,
installation, corrosion, and product specifications.
Direct Fastening Technical Guide, Edition 24
To consult directly with a team member regarding our direct fastening
products, contact Hilti’s team of technical support specialists between the
hours of 7:00am – 5:00pm CST.
US: 877-749-6337 or
HNATechnicalServices@hilti.com
CA: 1-800-363-4458 ext. 6 or
CATechnicalServices@hilti.com
Hilti, Inc.
7250 Dallas Parkway, Suite 1000 Plano, Texas 75024
1-800-879-8000 |
www.hilti.com
X-BT-ER ELECTRICAL CONNECTION SYSTEMS
Product description
X-BT-ER stainless steel threaded studs are designed for electrical connections
under permanent current, short circuit current and lightning current
conditions. Packaged with two stainless nuts and one stainless steel lock
washer, the
X-BT-ER can be used for electrical grounding such as bonding and lightning
protection in potentially corrosive environments. The X-BT-ER is available in
W6/3 SN8, W6/7 SN 8 and
W10/7 SN 8 sizes.
Product features and benefits
- Faster: A connection can be made in less than 1 minute. Removing and reapplication of coatings are not required.
- More reliable: Stainless steel stud is generally suitable for corrosive industrial environments. The vibration resistant stud helps prevent the connection from accidentally coming loose.
- Simpler: Drill, fasten and connect. External power source is not needed and not dependent on weather.
Material specifications
| Part | Fastener material |
|---|
① Shank and thread
| S31803 (1.4462) equivalent to A4 / AISI grade 316
② SN washer| S31635 (X2CrNiMo 17-12-2, 1.4404)
③ Sealing washer
| Elastomer, black; resistant to UV, salt water, water, ozone, oils, etc.
⑥ Nuts| Equivalent to A4 / AISI grade 316 material
⑦ Lock washers| Equivalent to A4 / AISI grade 316 material
④ Removable guide sleeve| Plastic
Direct Fastening Technical Guide, Edition 24
Listings/Approvals
- UL (Underwriters Laboratories) E257069
- ABS (American Bureau of Shipping)
- Lloyds Register
- DNVGL
- BV (Bureau Veritas)
Technical data
Application examples
Functional bonding and terminal connection in a circuit
For low permanent current due to static charge built up in pipes or for low
permanent current when closing an electrical circuit
Single point connection| Recommended electrical connectors|
Maximum allowable permanent current| Notes
---|---|---|---
| X-BT-ER W10/7 SN 8 X-BT-ER WR6/7 SN 8 X-BT-ER W6/3 SN 8| = 40A| Recommended
connected cable size (tested to 40A) according to IEC/EN 60204-1shall not
exceed 10mm2 copper (8AWG). Fastening of thicker cable is acceptable provided
the maximum permanent current of 40A is not exceeded and the provisions on
cable lug thickness are observed.
Protective bonding circuit
For discharging short circuit current while assisting in protecting electrical
equipment or earth/ground or bonding cable trays and ladders
Single point connection| Recommended electrical connectors|
Maximum short circuit current for period of 1s| Notes
---|---|---|---
| X-BT-ER W10/7 SN 8 X-BT-ER W6/7 SN 8 X-BT-ER W6/3 SN 8| = 1250A|
- Recommended connected cable size (tested to 1250A for 1s) following IEC/EN 60947-7-2 shall not exceed 10mm2 copper (8AWG). Fastening of thicker cable is acceptable provided the maximum current of 1250A for a period of 1 second is not exceeded and the provisions on cable lug thickness are observed.
- Recommended connected cable size (tested to 750A for 4s) according to UL 467: ≤ 10AWG
Double point connection| Recommended electrical connectors| Maximum short circuit current for period of 1s| Notes
| X-BT-ER W10/7 SN 8 X-BT-ER W6/7 SN 8| = 1800A| Recommended connected cable size (tested to 1800A for 1s) following IEC/EN 60947-7-2 shall not exceed 16mm2 copper (6AWG). Fastening of thicker cable is acceptable provided the maximum current of 1800A for a period of 1 second is not exceeded and the provisions on cable lug thickness are observed.
Lightning protection
For high temporary current due to lightning.
Single point connection| Recommended electrical connectors|
Maximum current (According to EN 62561-1:2012-01)|
---|---|---|---
|
X-BT-ER W10/7 SN 8 X-BT-ER W6/7 SN 8 X-BT-ER W6/3 SN 8
| ≤ 50kA for 2ms
One nut with cable lug
| Recommended electrical connectors| Maximum tested current|
When one nut is utilized and cable lug is in contact with base material
| X-BT-ER W10/7 SN 8 X-BT-ER W6/7 SN 8 X-BT-ER W6/3 SN 8| ≤ 100kA for 2ms|
- Cable lug must be in direct contact with non-coated base material.
- Extra W10 stainless steel washer to be used and installed between lock washer and cable lug.
- Base material must not contact the X-BT-ER SN washer, lock washer and nut.
- Cable lug thickness = 0.079″ to 0.47″ (2mm to 12mm). Cable lug hole diameter ≥ 0.55″ (14mm).
- Max. tightening torque = 14.8 ft-lb (20 Nm)
Installation parameters
Thickness of base material must be ≥ 5/16” (8 mm), spacing of the fasteners
must be ≥ 5/8” (15 mm), edge distance of the fasteners must be ≥ 1/4” (6 mm).
Thickness of base material corrosion protection layer ≤ 0.02” (0.5 mm). For
thicker coatings, please contact Hilti.
Installation Instructions
Installation Instructions For Use (IFU) are included with each product
package. They can also be viewed or downloaded online at
www.hilti.com. Because of the possibility of changes,
always verify that downloaded IFU are current when used.
Proper installation is critical to achieve full performance. Training is available on request. Contact Hilti Technical Services for applications and conditions not addressed in the IFU.
**Ordering information***
X-BT-ER Stainless Steel Threaded Studs
- Ordering information about tools and cartridge
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>