8146 Explosion-Protected Disconnect Switch
“
Specifications
Product Name: Explosion-Protected Disconnect
Switch
Models: 8146/5-V11 (Class I, Zone 1),
7146/5-V11 (Class I, Div. 2)
Product Information
General Information
This explosion-protected disconnect switch is designed to
provide switching means for main disconnect and Load & Motor
disconnect applications.
Hazardous Location Ratings and Applicable Standards
- ANSI/UL 60079-0
- ANSI/UL 60079-1
- ANSI/UL 60079-7
- ANSI/UL 508
- CAN/CSA C22.2 No. 60079-0
- CAN/CSA C22.2 No. 60079-1
Technical Data
For detailed technical specifications, refer to section 5 of the
user manual.
Dimensions and Connections
Refer to section 6 of the user manual for information on
dimensions and connections.
Product Usage Instructions
Installation
1. Ensure the disconnect switch is installed by qualified
personnel according to the provided instructions.
2. Verify all connections are secure and follow proper wiring
procedures.
3. Check for any damage before installation.
Maintenance
1. Regularly inspect the disconnect switch for any signs of wear
or damage.
2. Clean the switch as needed to prevent dust or debris
accumulation.
3. Follow the maintenance schedule outlined in the user
manual.
Parts & Accessories
Refer to section 9 of the user manual for information on parts
and accessories related to the disconnect switch.
FAQ
Q: Can I install the disconnect switch myself?
A: The disconnect switch should be installed, inspected,
maintained, and operated by qualified and competent personnel as
stated in the manual.
Q: How often should I perform maintenance on the switch?
A: Regularly inspect the switch and follow the maintenance
schedule provided in the user manual to ensure proper
functionality.
“`
Installation, Operation & Maintenance Sheet
Explosion-Protected Disconnect Switch (8146/5-V11, Class I, Zone 1) (7146/5-V11,ClassI, Div. 2)
1 Contents
1 Contents ………………………………………………………… 1
2 General Information ……………………………………………….. 1 3 Application ……………………………………………………… 1 4 Hazardous Location Ratings and Applicable
Standards ……………………………………………………….2
5 Technical Data ……………………………………………………. 3 6 Dimensions and Connections …………………………………..5 7 Installation ………………………………………………………………….. 6
8 Maintenance …………………………………………………….6
9 Parts & Accessories ………………………………………………7
2 General Information
2.1 Contact Information
R. STAHL Inc. 13259 N. Promenade Blvd
Stafford, TX 77477
Phone: Fax:
+1 800 782 4357 +1 281 313 9302
Internet:
www.rstahl.com
R. STAHL Schaltgeräte GmbH
Am Bahnhof 30
D-74638 Waldenburg
Phone:
+49 (0) 7942 943-0
3
Fax:
+49 (0) 7942 943-4333
Internet:
www.stahl-ex.com
2.2 Information regarding this Installation, Operation and Maintenance Sheet
ID NO.:
137232 / 81 466 30 30 0-06
Publication Code: S-IOM-8146-06-en-2025-04-14
The explosion-protected disconnect switches should be installed, inspected, maintained, and operated by qualified and competent personnel. Read entire instructions before starting installation of this product.
Contact your R. STAHL Customer Service or R. STAHL distributor if you have any questions.
Technical information and illustrations are not binding and subject to change without notice.
The nature of these instructions is only informative and does not cover all of the details, variations or combinations in which this device may be used, its storage, delivery, installations, safe operation and maintenance.
Since conditions of use of the product are outside of the care, custody and control of the manufacturer, the purchaser should determine the suitability of the product for his intended use, and assumes all risk and liability whatsoever in connection therewith.
Save these instructions for future reference.
Application
The Series 8146/5 and 7146/5 explosion-protected provide switching means for main disconnect and Load & Motor disconnect applications as detailed in the ratings in section 5.
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4 Hazardous Location Ratings and Applicable Standards
The disconnects are in compliance with the following standards:
ANSI/UL 60079-0
Electrical Apparatus for Explosive Gas Atmospheres – Part 0: General Requirements
ANSI/UL 60079-1
Explosive Atmospheres – Part 1: Equipment Protection by Flameproof Enclosures ‘d’
ANSI/UL 60079-7
Explosive Atmospheres – Part 7: Equipment protection by increased safety ‘e’
ANSI/UL 508
Industrial Control Equipment
CAN/CSA C22.2 No. 60079-0
Explosive atmospheres – Part 0: Equipment – General requirements
CAN/CSA C22.2 No. 60079-1
Explosive atmospheres – Part 1: Equipment protection by flameproof enclosures “d”
CAN/CSA C22.2 No. 60079-7
Explosive atmospheres – Part 7: Equipment protection by increased safety “e”
IEC 60079-0 IEC 60079-1 IEC 60079-7 EN IEC 60079-0
Explosive atmospheres Part 0: Equipment – General requirements
Explosive atmospheres Part 1: Equipment protection by flameproof enclosures ‘d’
Explosive atmospheres Part 7: Equipment protection by increased safety ‘e’
Explosive atmospheres Part 0: Equipment – General requirements
EN 60079-1
Explosive atmospheres Part 1: Equipment protection by flameproof enclosures ‘d’
EN 60079-7
Explosive atmospheres Part 7: Equipment protection by increased safety ‘e’
CAN/CSA C22.2 No.25
Enclosures for Use in Class II, Groups E, F and G Hazardous Locations
CAN/CSA C22.2 No. 213
Non-incendive Electrical Equipment for Use in Class I, Division 2 Hazardous Locations
CSA C22.2 No.14
Industrial Control Equipment
FM 3600 Class FM 3611 Class
Electrical Equipment for Use in Hazardous (Classified) Locations, General Requirement
Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III Divisions 1 and 2, Hazardous (Classified) Locations
FM 3616 Class
Approval Standard for Dust-Ignitionproof Electrical Equipment General Requirements
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5 Technical Data
Without fuses
Device Type
Explosion Protection Gas & Vapor
Dust Protection Version Rated Current Rated Voltage Frequency Poles Interrupting Capacity(1)
Ambient Temperature Terminal Capacity
Load & Motor Disconnect
Class I, Zone 1, AEx db eb IIC T* Gb (US)
Ex db eb IIC T* Gb (CAN)
Class I, Division 2, Groups A, B, C, & D
Ex db eb IIC T* Gb (IECEx) / II 2G Ex db eb IIC T* Gb (ATEX)
Ex tb IIIC IP65 T*°C IIIC T* (IECEx) / (ATEX)
Class II, Division I, Groups E, F, G; Class III
8146/5-V11-x01-…
8146/5-V11-x02-…
15 A
16 A
600 VAC 125 / 60 VDC
600 VAC 125 / 60 VDC
50/60Hz
50/60Hz
3-Pole + N 2-Pole/1-Pole 3-Pole + N 2-Pole/1-Pole
10kA (2)
10kA (2)
-50°C (-58°F) … +40°C (104°F) (T6)
14 AWG – 8 AWG up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm
-50°C (-58°F) … +40°C (104°F) (T6)
14 AWG – 8 AWG up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm
8146/5-V11-x03-… 25 A
600 VAC 240 / 125 / 60 VDC 50/60Hz 3-Pole + N 3- / 2- / 1- Pole
20kA (2)
-50°C (-58°F) … +55°C (131°F) (T5)
12 AWG – 6 AWG up to:
10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6 AWG: 45 lbf-in or 5.1 Nm
480 VAC 50/60Hz
14kA (2)
8146/5-V11-x04-… 32 A 600 VAC 50/60Hz
3-Pole + N 10kA (2)
-50°C (-58°F) … +55°C (131°F) (T5)
12 AWG – 6 AWG up to:
10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6 AWG: 45 lbf-in or 5.1 Nm
Tightening Torque(3) Type of Protection IP Mounting Position
Type 3, 4, 4x IP65/66
Per NEC ®; CE Code or 60079-14
8146/5-V11-x06-…
63 A
600 VAC
240 / 125 / 60 VDC
50/60Hz
3-Pole,opt N
3- / 2- / 1- Pole
20kA (2)
-50°C (-58°F) … +55°C (131°F) (T5)
10 AWG – 1/0 AWG up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6-4 AWG: 45 lbf-in or 5.1 Nm 2 AWG: 50 lbf-in or 5.6 Nm 1/0 AWG: 71 lbf-in or 8 Nm
8146/5-V11-x07-…
80 A
480 VAC
240 / 125 / 60 VDC
50/60Hz
3-Pole,opt N
3- / 2- / 1- Pole
20kA (2)
-50°C (-58°F) … +55°C (131°F) (T5)
10 AWG – 1/0 AWG up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6-4 AWG: 45 lbf-in or 5.1 Nm 2 AWG: 50 lbf-in or 5.6 Nm 1/0 AWG: 71 lbf-in or 8 Nm
Load & Motor Disconnect
Class I, Zone 1, AEx db eb IIC T* Gb (US)
Ex db eb IIC T* Gb (CAN)
Class I, Division 2, Groups A, B, C, & D
Ex db eb IIC T* Gb (IECEx) / II 2G Ex db eb IIC T* Gb (ATEX)
n/a
n/a
n/a
n/a
8146/5-V11-x32-…
8146/5-V11-x08-…
100 A
125 A
600 VAC
240 / 125 / 60 VDC 600 VAC
240 / 125 / 60 VDC
50/60Hz
50/60Hz
3-Pole, optional N 3- / 2- / 1- Pole
3-Pole, optional N 3- / 2- / 1- Pole
25kA (2)
25kA (2)
-50°C (-58°F) … +40°C (104°F) (T5)
10 AWG – 300 kcmil up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6-4 AWG: 45 lbf-in or 5.1 Nm 2 AWG: 50 lbf-in or 5.6 Nm 1/0-2/0 AWG: 220 lbf-in or 22 Nm 3/0 AWG – 300kcmil: 265 lbf-in or 30 Nm
-50°C (-58°F) … +55°C (131°F) (T5)
10 AWG – 300 kcmil up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6-4 AWG: 45 lbf-in or 5.1 Nm 2 AWG: 50 lbf-in or 5.6 Nm 1/0-2/0 AWG: 220 lbf-in or 25 Nm 3/0 AWG – 300kcmil: 265 lbf-in or 30 Nm
Type 3, 4, 4x IP65/66
Per NEC ®; CE Code or 60079-14
n/a
n/a
8146/5-V11-x09-…
150 A
480 VAC
240 / 125 / 60 VDC
50/60Hz
3-Pole, optional N 3- / 2- / 1- Pole
25kA (2)
-50°C (-58°F) … +40°C (104°F) (T4)
10 AWG – 300 kcmil up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6-4 AWG: 45 lbf-in or 5.1 Nm 2 AWG: 50 lbf-in or 5.6 Nm 1/0-2/0 AWG: 220 lbf-in or 25 Nm 3/0 AWG – 300kcmil: 265 lbf-in or 30 Nm
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Device Type
Load & Motor Disconnect
Explosion Protection
Gas & Vapor
Class I, Division 2, Groups A, B, C, & D (US) (C)
Dust Protection
Class II, Division 2, Groups F, G
Version
7146/5-V11-x01-…
7146/5-V11-x03-…
Rated Current
15 A
25 A
Rated Voltage
600 VAC 125 / 60 VDC 600 VAC 240 / 125 / 60 VDC
Frequency
50/60Hz
50/60Hz
Poles
3-Pole + N 2-Pole/1-Pole 3-Pole + N 3- / 2- / 1- Pole
Interrupting Capacity(1)
10kA (2)
20kA (2) / 14kA (2) /10kA (2)
[-50°C (-58°F)] -40°C (-40°F) … [-50°C (-58°F)] -40°C (-40°F) …Ambient Temperature
+40°C (104°F) (T6)
+40°C (104°F) (T6)
Terminal Capacity
14 AWG – 8 AWG
12 AWG – 6 AWG
up to:
up to:
10 AWG: 35 lbf-in or 4.0 Nm 10 AWG: 35 lbf-in or 4.0 Nm
8 AWG: 40 lbf-in or 4.5 Nm 8 AWG: 40 lbf-in or 4.5 Nm
6 AWG: 45 lbf-in or 5.1 Nm
Tightening Torque(3) Type of Protection IP Mounting Position
7146/5-V11-x04-…
32 A
480 VAC
600 VAC
50/60Hz
50/60Hz
3-Pole + N
20kA (2) / 14kA (2) /10kA (2)
[-50°C (-58°F)] -40°C (-40°F) …+40°C (104°F) (T6)
12 AWG – 6 AWG
up to:
10 AWG: 35 lbf-in or 4.0 Nm
8 AWG: 40 lbf-in or 4.5 Nm
6 AWG: 45 lbf-in or 5.1 Nm
7146/5-V11-x06-…
60 A
600 VAC
240 / 125 / 60 VDC
50/60Hz
3-Pole,opt N
3- / 2- / 1- Pole
20kA (2)
‘[-50°C (-58°F)] -40°C (-40°F) … +55°C
(131°F) (T5)
10 AWG – 1/0 AWG
up to:
10 AWG: 35 lbf-in or 4.0 Nm
8 AWG: 40 lbf-in or 4.5 Nm
6-4 AWG: 45 lbf-in or 5.1 Nm
2 AWG: 50 lbf-in or 5.6 Nm
1/0 AWG: 71 lbf-in or 8 Nm
7146/5-V11-x07-…
80 A
480 VAC
240 / 125 / 60 VDC
50/60Hz
3-Pole,opt N
3- / 2- / 1- Pole
20kA (2)
[-50°C (-58°F)] -40°C (-40°F) … +55°C(131°F) (T5)
10 AWG – 1/0 AWG
up to:
10 AWG: 35 lbf-in or 4.0 Nm
8 AWG: 40 lbf-in or 4.5 Nm
6-4 AWG: 45 lbf-in or 5.1 Nm
2 AWG: 50 lbf-in or 5.6 Nm
1/0 AWG: 71 lbf-in or 8 Nm
Type 3, 4, 4x IP66
Per NEC ® or CE Code
Load & Motor Disconnect
Class I, Division 2, Groups A, B, C, & D (US) (C)
n/a
n/a
7146/5-V11-x32-…
7146/5-V11-x08-…
100 A
125 A
600 VAC
240 / 125 / 60 VDC 600 VAC
240 / 125 / 60 VDC
50/60Hz
50/60Hz
3-Pole, optional N 3- / 2- / 1- Pole
3-Pole, optional N 3- / 2- / 1- Pole
25kA (2)
25kA (2)
[-50°C (-58°F)] -40°C (-40°F) … +55°C [-50°C (-58°F)] -40°C (-40°F) … +55°C(131°F) (T5)
(131°F) (T5)
n/a
7146/5-V11-x09-…
150 A
480 VAC
240 / 125 / 60 VDC
50/60Hz
3-Pole, optional N 3- / 2- / 1- Pole
25kA (2)
[-50°C (-58°F)] -40°C (-40°F) … +40°C(104°F) (T4)
‘[-50°C (-58°F)] -40°C (-40°F) … +55°C (131°F) (T4)
10 AWG – 300 kcmil up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6-4 AWG: 45 lbf-in or 5.1 Nm 2 AWG: 50 lbf-in or 5.6 Nm 1/0-2/0 AWG: 220 lbf-in or 25 Nm 3/0 AWG – 300kcmil: 265 lbf-in or 30 Nm
‘[-50°C (-58°F)] -40°C (-40°F) … +55°C (131°F) (T4)
10 AWG – 300 kcmil up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6-4 AWG: 45 lbf-in or 5.1 Nm 2 AWG: 50 lbf-in or 5.6 Nm 1/0-2/0 AWG: 220 lbf-in or 25 Nm 3/0 AWG – 300kcmil: 265 lbf-in or 30 Nm
Type 3, 4, 4x IP66
Per NEC ® or CE Code
‘[-50°C (-58°F)] -40°C (-40°F) … +55°C (131°F) (T4)
10 AWG – 300 kcmil up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6-4 AWG: 45 lbf-in or 5.1 Nm 2 AWG: 50 lbf-in or 5.6 Nm 1/0-2/0 AWG: 220 lbf-in or 25 Nm 3/0 AWG – 300kcmil: 265 lbf-in or 30 Nm
(1)The interrupting capacity of the system is based on the fuses used as current limitation. These values are a maximum (2)Short circuit protection based on supply limitation. For recommended supply limitation see table below. (3)Information on terminal connection provided below on pg4.
Switch Type
Rated Current
Interrupting Capacity kA / cos
Back-up Protection Max. Class-J fuse(4)
8008 series
15 A
10 kA / 0.25
20 A
8008 series
16 A
10 kA / 0.25
20 A
8006 series
25 A
20 kA / 0.25
40 A
8006 series
30 / 32 A
@480VAC 14 kA / 0.25 @600 VAC 10 kA / 0.25
50 A
8544 series
60 / 63 A
@ 600 VAC 20 kA / 0.25 150 A
8544 series
80 A
@ 480 VAC 20 kA / 0.25 150 A
8549 series
100 A
@ 600 VAC 25 kA / 0.25 200 A
8549 series
125 A
@ 600 VAC 25 kA / 0.25 200 A
8549 series
150 A
@ 480 VAC 25 kA / 0.25 200 A
Back-up fuse is required as short-circuit protection for switch assemblies. (4) type J fuse per ANSI/UL 248-8 or CSA C22.2 No. 248.8
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With fuses (Type J fuse per ANSI/UL 248-8 or CSA C22.2 No. 248.8)
Device Type Explosion Protection Gas & Vapor Dust Protection Version Rated Current
Fuse Protected Load & Motor Disconnect Class I, Division 2, Groups A, B, C, & D (US) (C) T4
n/a 7146/5-V11-x01-… 15 A
7146/5-V11-x03-… 25 A
7146/5-V11-x04-… 32 A
Rated Voltage
600 VAC 125 / 60 VDC
Frequency
50/60Hz
Poles
3-Pole + N 2-Pole/1-Pole
Interrupting Capacity(1)
10kA (2)
600 VAC
240 / 125 / 60 VDC 480 VAC
600 VAC
50/60Hz
50/60Hz
50/60Hz
3-Pole + N 3- / 2- / 1- Pole
3-Pole + N
20kA (2) / 14kA (2) / 10kA (2)
20kA (2) / 14kA (2) / 10kA (2)
-40°C (-40°F) … +55°C (131°F) -40°C (-40°F) … +55°C (131°F)
Ambient Temperature
(T4)
(T4)
-40°C (-40°F) … +55°C (131°F) (T4)
Adjusted Current Adjusted Ambient Temperature Terminal Capacity
14 AWG – 8 AWG up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm
12 AWG – 6 AWG up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6 AWG: 45 lbf-in or 5.1 Nm
12 AWG – 6 AWG up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6 AWG: 45 lbf-in or 5.1 Nm
Tightening Torque(3) Type of Protection IP Mounting Position
Type 3, 4, 4x IP66
Per NEC ® or CE Code
7146/5-V11-x06-… 60 A
600 VAC 50/60Hz 3-Pole,opt N
240 / 125 / 60 VDC
3- / 2- / 1- Pole 20kA (2)
-40°C (-40°F) … +55°C (131°F) (T4)
10 AWG – 1/0 AWG up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6-4 AWG: 45 lbf-in or 5.1 Nm 2 AWG: 50 lbf-in or 5.6 Nm 1/0 AWG: 71 lbf-in or 8 Nm
Fuse Protected Load & Motor Disconnect
Class I, Division 2, Groups A, B, C, & D (US) (C) T4
n/a
7146/5-V11-x07-…
7146/5-V11-x32-…
80 A
100 A
480 VAC 240 / 125 / 60 VDC 600 VAC
240 / 125 / 60 VDC
50/60Hz
50/60Hz
3-Pole,opt N 3- / 2- / 1- Pole 3-Pole, optional N 3- / 2- / 1- Pole
20kA (2)
25kA (2)
7146/5-V11-x08-…
125 A
600 VAC
240 / 125 / 60 VDC
50/60Hz
3-Pole, optional N 3- / 2- / 1- Pole
25kA (2)
-40°C (-40°F) … +55°C (131°F) (T4)
10 AWG – 1/0 AWG up to: 10 AWG: 35 lbf-in or 4.0 Nm 8 AWG: 40 lbf-in or 4.5 Nm 6-4 AWG: 45 lbf-in or 5.1 Nm 2 AWG: 50 lbf-in or 5.6 Nm 1/0 AWG: 71 lbf-in or 8 Nm
-40°C (-40°F) … +40°C (104°F)
-40°C (-40°F) … +40°C (104°F)
(T4)
(T4)
100 A
100 A
-40°C (-40°F) … +55°C (131°F)
-40°C (-40°F) … +55°C (131°F)
(T4)
(T4)
10 AWG – 300 kcmil
10 AWG – 300 kcmil
up to:
up to:
10 AWG: 35 lbf-in or 4.0 Nm
10 AWG: 35 lbf-in or 4.0 Nm
8 AWG: 40 lbf-in or 4.5 Nm
8 AWG: 40 lbf-in or 4.5 Nm
6-4 AWG: 45 lbf-in or 5.1 Nm
6-4 AWG: 45 lbf-in or 5.1 Nm
2 AWG: 50 lbf-in or 5.6 Nm
2 AWG: 50 lbf-in or 5.6 Nm
1/0-2/0 AWG: 220 lbf-in or 22 Nm
1/0-2/0 AWG: 220 lbf-in or 25 Nm
3/0 AWG – 300kcmil: 265 lbf-in or 30 Nm 3/0 AWG – 300kcmil: 265 lbf-in or 30 Nm
Type 3, 4, 4x
IP66
Per NEC ® or CE Code
(1)The interrupting capacity of the system is based on the fuses used on line side of the switch. If the fuses are used on the load side of the switch, then the short circuit limitation protection must be provided as specified on pg3. (2)Information on terminal connection provided below on pg4.
(3)The Ambient Temperature is based on the fuse type used. The fuses are calibrated for -40°C (-40°F) or -30°C (-22°F) and care must be taken to use the correctly rated
fuse
Terminal Connection Table
Terminal Type
Wire Range
Phoenix(3)
AWG
UT4
26 – 10
UT6
24 8
UKH50
6 – 2/0
UKH95
4 4/0
Torque
5.3 – 7 13.3 16 53.1 – 70.8 132.7 177.0
Horsepower Rating
System Rating
16 A
25 A
30 A / 32 A
63 A / 80 A
100 A
125 A
600 VAC
10
15
30
60
100
125
480 VAC
10
15
20
40 / 60
75
100
240 VAC
5
7.5
10
20 / 30
30
40
120 VAC
2
3
3
10
–
–
60 VDC
–
10 (1)
–
–
125 VDC
3 (2)
10 (2)
10 (2)
10 (2)
240 VDC
5 (3)
30 (3)
20 (3)
20 (3)
The number in parentheses () for the VDC rating refer to the number of poles in series the line must be wired through to achieve the listed rating.
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6 Dimensions and Connections
Type
x146/5-V11-E01-00-0000-0 x146/5-V11-E02-00-0000-0 x146/5-V11-E03-00-0000-0 x146/5-V11-E04-00-0000-0 x146/5-V11-D06-00-0000-0 x146/5-V11-D07-00-0000-0 x146/5-V11-D08-00-0000-0 x146/5-V11-D09-00-0000-0 x146/5-V11-E02-00-0500-0 x146/5-V11-E03-00-0500-0 x146/5-V11-E04-00-0500-0 x146/5-V11-D06-00-0500-0 x146/5-V11-D07-00-0500-0 x146/5-V11-D08-00-0500-0 x146/5-V11-D09-00-0500-0
Layout Height Width Depth
AB
C
A
170 170
131
A
170 170
131
A
227 170
131
A
227 170
131
A 340.5 340.5
150
A 340.5 340.5
150
B 681.5 340.5
190
B 681.5 340.5
190
A
227 170
131
A 340.5 170
131
A 340.5 170
131
B 681.5 340.5
150
B 681.5 340.5
150
B 681.5 340.5
190
B 681.5 340.5
190
Mtg
Mtg Mtg Mtg Encl.
Height 1 Width 1 Height 2 Width 2 Gap
D / D1
E
F
GH
118 152
118 152
175 152
175 152
228.5 322.5
228.5 322.5
228.5/52.5 322.5
228.5/52.5 322.5
175 152
288.5 152
288.5 152
228.5/52.5 322.5
228.5/52.5 322.5
228.5/52.5 322.5
228.5/52.5 322.5
7146/5-V11-E01-AA-0000-0 7146/5-V11-E03-AA-0000-0 7146/5-V11-E04-AA-0000-0 7146/5-V11-D06-AA-0000-0 7146/5-V11-D07-AA-0000-0 7146/5-V11-D08-AA-0000-0 7146/5-V11-E01-AA-0500-0 7146/5-V11-E03-AA-0500-0 7146/5-V11-E04-AA-0500-0 7146/5-V11-D06-AA-0500-0 7146/5-V11-D07-AA-0500-0 7146/5-V11-D08-AA-0500-0
A 340.5 170
131
A 340.5 170
131
A 340.5 170
131
B 681.5 340.5
150
B 681.5 340.5
150
B 681.5 340.5
190
C 514.7 170
131
C 514.7 170
131
C 514.7 170
131
B 681.5 340.5
150
B 681.5 340.5
150
C 1029.2 340.5
190
Dimensions in mm (enclosure style may vary)
288.5 288.5 288.5 228.5/52.5 228.5/52.5 228.5/52.5 288.5 288.5 288.5 228.5/52.5 228.5/52.5 228.5/52.5
152 152 152 322.5 322.5 322.5 152 152 152 322.5 322.5 322.5
118 152 56.2 118 152 56.2 118 152 56.2
228.5 322.5 56.2
Layout A
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Layout B
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Layout C
S-IOM-8146-06-en-2025-04-14
7 Installation WARNING
To avoid fire or shock hazard, the electrical power must be turned OFF before and during installation.
Refer to the technical data and installation information on the front and side mounted nameplates of the circuit breakers.
Enclosure Mounting: Mounting brackets are provided with each enclosure. These mounting brackets are designed to hold an 7mm through hole. Mounting can also be made to the threaded insert in the back of the enclosure. This threaded insert is M6x1.0.
After the panel is mounted to its final position select the proper cable or wiring size. Use copper conductors minimum 75°C. Connect to the proper terminal and torque based on the terminal and conductor size. For the systems with switch rating code “8” or “9” use copper conductors minimum 75°C sized based on its 60°C ampacity for the proper ambient.
There are two types of installation methods: Conduit installation or cable installation. If the unit has factory installed entry hardware, proceed to the wiring section. If the unit does not have entry hardware, select the appropriate hardware and mount as follows.
Conduit/Cable Installation Method 1: Enclosures with flange plates using threaded openings through the flange plate and standard locknuts. Flange Plate must be connected to the internal grounding system using jumper wires.
Method 2: Enclosures without flange plates using a hole “through the enclosure” with grounding locknut. These locknuts must be bonded between each other and the grounding system using jumper wires. After the entry hardware is installed connect the appropriate conduit or cable.
In both methods, the earth connection should be checked prior to supplying load power. All unused enclosure openings must be closed using approved close-up plugs with standard locknuts. (see section 9 for NPT close-up plugs.)
7.1 Wiring
Attach the conduit/cable to the panel, and pull the conductors into the enclosure, making sure that the conductors are long enough to land them on the appropriate terminal.
Be sure to land the ground wire on the appropriate internal ground terminal.
Connect the properly sized 75°C copper field wiring conductors to the proper terminals. For the systems with switch rating code “8” or “9” use copper conductors minimum 75°C sized based on its 60°C ampacity for the proper ambient.
Test the wiring for correctness with continuity checks and for unwanted grounds with an insulation resistance tester.
Replace the open enclosure cover ensuring alignment between actuators and internal components. Actuate the switch to ensure proper fit and function. Then tighten the cover screws to 4.5 Nm / 40 lbf-in.
Once the cover is correctly in place, energize the circuit.
8 Maintenance & Testing WARNING
To avoid electrical shock, fire and/or explosions, always disconnect primary power source before inspection, service or Maintenance. We recommend an Electrical Prevention Maintenance program
as described in the National Electrical Code® (NEC) and the National Fire Protection Association Bulletin NFPA No. 70B, and any local regulations. It is recommended that it should be at least once a year. Maintenance should only be performed by qualified and experienced personnel. Perform visual, electrical, and mechanical checks on all components on a regular basis. Visually check for undue heating evidence by
distortion of wires or other components, damaged or worn parts or leakage evidenced by water or corrosion in the interior. Electrically check to make sure that all connections are clean and tight. Mechanically check that all parts are properly assembled, and operating mechanisms move freely. Replacement parts are available through R. STAHL distributors. Replace only with R. STAHL’s explosion protected components. See Section 9 or consult factory for spare parts.
Entry Method 1
Entry Method 2
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S-IOM-8146-06-en-2025-04-14
9. Parts & Accessories
9.1 Entry Hardware
Size 1/2″ 3/4″ 1″ 1 -1/4″ 1 -1/2″ 2″ 2-1/2″ 3
Ordering Code PD-E-4-0-29-00 PD-E-4-0-30-00 PD-E-4-0-31 -00 PD-E-4-0-32-00 PD-E-4-0-33-00 PD-E-4-0-34-00 PD-E-4-0-35-00 PD-E-4-0-36-00
8008/2-613 16 A Switch SAP# 128614
8006/4-003 25 A Switch SAP# 169492 204108 IP 20 Terminal Cover
For additional accessories for STAHL switches please refer to the STAHL catalog or contact your STAHL representative.
8544/1-32 80 A / 63 A Switch 3 Pole SAP# 171154
(order for 3-Pole +N Version) 8544/1-42 80 A / 63 A Switch 4 Pole SAP# 171156
8549/1-32 125 A / 150 A Switch 3 Pole SAP# 171181
8549/1-42 125 A / 150 A Switch 4 Pole SAP# 171183
137232 / 81 466 30 30 0-06
8/8
S-IOM-8146-06-en-2025-04-14
Documents / Resources
 |
STAHL 8146 Explosion-Protected Disconnect Switch [pdf] Instruction Manual 8146-5-V11, 7146-5-V11, 8146 Explosion-Protected Disconnect Switch, 8146, Explosion-Protected Disconnect Switch, Disconnect Switch, Switch |