EZ SOLAR JB-1.XL Rooftop PV Junction Box Owner’s Manual
- June 11, 2024
- EZ SOLAR
Table of Contents
EZ SOLAR JB-1.XL Rooftop PV Junction Box
Product Information
JB-1.XL Rooftop Junction Box
The JB-1.XL is a rooftop junction box designed for use with composition/asphalt shingle roofs. It is a cost-effective optionthat provides more space and fast installation. The JB-1.XL is UL1741 and CSA C22.2 No. 290 approved, and it requires wire connectors that conform to the same standards. The JB-1.XL is equipped with ABB ZS6, ZS10, and ZS16 terminal blocks, as well as Ideal 452 Red Wing-Nut, Ideal 451 Yellow Wing-Nut, Ideal In-Sure Push-In Connector Part #39, WAGO 2204-1201, WAGO 221-612, Dottie DRC75, ESP NG-53, and ESP NG-717 wire connectors. The JB-1.XL is suitable for use with various wire sizes and has different torque loads and ratings depending on the connector type.
Product Usage Instructions
Before installing the JB-1.XL rooftop junction box, ensure that you have the right wire connectors that conform to UL1741 and CSA C22.2 No. 290 standards. Then, follow these steps:
- Choose a suitable location for the JB-1.XL rooftop junction box on your composition/asphalt shingle roof.
- Ensure that there is enough space for the conductors to pass through a wall opposite the terminals.
- Install the ABB ZS6, ZS10, or ZS16 terminal block in the JB-1.XL rooftop junction box, depending on your wire size and bending space requirements.
- Select the appropriate wire connector from the list of approved connectors and connect the wires to the terminal blocks.
- Ensure that the wires are properly secured and that there is no contact between components of opposite polarity.
- Check the torque loads and ratings for your wire connector type and tighten the connections accordingly.
- Test the system for proper operation and replace any affected components immediately.
For more information or assistance, contact ezsolarproducts.com at info@ezsolarproducts.com or call 385.202.4150.
INTRODUCING JB-1.XL Specification Sheet
PV Junction Box for Composition/AsphaIt Shingle Roofs
A. System Specifications and Ratings Maximum Voltage:
- Maximum Voltage: 1,000 Volts
- Maximum Current: JB-1.2: 80 Amps; JB-1.XL: 120 Amps
- Allowable Wire: 14 AWG – 6 AWG
- Spacing: Please maintain a spacing of at least ½” between uninsulated live parts and fittings for conduit, armored cable, and uninsulated live parts of opposite polarity.
- Enclosure Rating: Type 3R
- Roof Slope Range: 2.5 – 12:12
- Max Side Wall Fitting Size: 1”
- Max Floor Pass-Through Fitting Size: 1”
- Ambient Operating Conditions: (-35°C) – (+75°C)
- Compliance:
- JB-1.2: UL1741, CSA C22.2 No. 290; JB-1.XL: UL1741, CSA C22.2 No. 290
- Approved wire connectors: must conform to UL1741, CSA C22.2 No. 290
- System Marking: Interek Symbol and File #5019942
- Periodic Re-inspections: If re-inspections yield loose components, loose fasteners, or any corrosion between components, components that are found to be affected are to be replaced immediately.
Table 1: Typical Wire Size, Torque Loads and Ratings
| 1 Conductor| 2 Conductor| Torque
---|---|---|---
Type| NM| Inch Lbs| Voltage| Current
ABB ZS6 terminal block| 10-24 awg| 16-24 awg| Sol/Str| 0.5-0.7| 6.2-8.85|
600V| 30 amp
ABB ZS10 terminal block| 6-24 awg| 12-20 awg| Sol/Str| 1.0-1.6| 8.85-14.16|
600V| 40 amp
ABB ZS16 terminal block| 4-24 awg| 10-20 awg| Sol/Str| 1.6-2.4| 14.6-21.24|
600V| 60 amp
ABB M6/8 terminal block| 8-22 awg| | Sol/Str| .08-1| 8.85| 600V| 50 amp
Ideal 452 Red WING-NUT
Wire Connector
| 8-18 awg| | Sol/Str| Self-Torque| Self-Torque| 600V|
Ideal 451 Yellow WING-NUT
Wire Connector
| 10-18 awg| | Sol/Str| Self-Torque| Self-Torque| 600V|
Ideal, In-Sure Push-In Connector
Part #39
| 10-14 awg| | Sol/Str| Self-Torque| Self-Torque| 600V|
WAGO, 2204-1201| 10-20 awg| 16-24 awg| Sol/Str| Self-Torque| Self-Torque|
600V| 30 amp
WAGO, 221-612| 10-20 awg| 10-24 awg| Sol/Str| Self-Torque| Self-Torque| 600V|
30 amp
Dottie DRC75| 6-12 awg| | Sol/Str| Snap-In| Snap-In| |
ESP NG-53| 4-6 awg| | Sol/Str| | 45| ****
2000V
10-14 awg| | Sol/Str| | 35
ESP NG-717| 4-6 awg| | Sol/Str| | 45| ****
2000V
10-14 awg| | Sol/Str| | 35
Brumall 4-5,3| 4-6 awg| | Sol/Str| | 45| ****
2000V
10-14 awg| | Sol/Str| | 35
Table 2: Minimum wire-bending space for conductors through a wall opposite terminals in mm (inches)
Wire size, AWG or
kcmil (mm2)
| Wires per terminal (pole)
---|---
mm
| 1| ****
(inch)
| 2
mm (inch)
| 3
mm (inch)
| 4 or More
mm (inch)
14-10| (2.1-5.3)| Not Specified| –| –| –
8| (8.4)| 38.1| (1-1/2)| –| –| –
6| (13.3)| 50.8| (2)| –| –| –
ezsolarproducts.com | info@ezsolarproducts.com | 385.202.4150
References
Read User Manual Online (PDF format)
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