INSTRUCTION SHEET

nVENT ERIFLEX FLEXBUS ADVANCED FIRE BARRIER FIRE RESISTANT CONDUCTOR PENETRATION SEAL

Section 1: Components and Tools

This section illustrates the components and tools required for installation.

Firestop Blocks (FBB) [Product Codes: 508151, 508154, 508155]
Foam Barrier (FBS) [Product Codes: 508150, 508153]
Insulating Bandage (FIB) [Product Code: 508152]
Safety Equipment: Eye Protection ?, Hard Hat ⛑️, Gloves ?
Tools: Measuring Tape ?, Cutting Tool ?, Installation Tool ?

Section 2: Installation - Wall Penetration and Dimensions

Diagram shows a brick wall with a rectangular opening for conductor penetration. Dimensions labeled 'W' (width) and 'H' (height) for the opening. Maximum recommended opening sizes are indicated: W ≤ 450mm, H ≤ 500mm.

Section 3: Installation - Area Calculation and Flexbus Sizing

Diagram illustrates a brick wall penetration with conductors. Dimensions 'W' and 'H' are shown. Formulas for calculating the required area (A²) and sizing the Flexbus system are provided: W x H = A², FLEXBUS ≤ 60% A², ≥ 40% A².

Section 4: Installation - Minimum Opening Size

Diagram depicts a brick wall penetration with conductors. Dimensions 'W' and 'H' are shown. A minimum opening size is indicated: ≥ 100mm.

Section 5: Grounding Strap Installation Guidance

Diagram shows a wall penetration with conductors. It illustrates the correct and incorrect methods for attaching an 'MBJ Grounding Strap'. A red circle with a diagonal line ❌ indicates an incorrect method, while a green checkmark ✔️ indicates the correct method.

Section 6: System Installation and Reference

Diagram shows a wall cross-section with conductor bundles being sealed. The nVent ERIFLEX Flexbus system is being installed. A reference number 'REF. IP8606' is provided. A maximum dimension of ≤ 200mm is indicated.

Section 7: Component Placement (FBB Blocks)

Diagram illustrates a wall cross-section with conductor bundles in a penetration. Red components, identified as Firestop Blocks (FBB), are shown being placed.

Section 8: Cutting and Assembly

Diagram shows various tools (saw, cutter, measuring tool) and components (red and grey blocks). Arrows indicate steps for cutting and assembling the fire barrier components. Product codes 508151 and 508154 are associated with this step.

Section 9: Component Application (FBB, FBS)

Diagram shows a wall cross-section with conductor bundles. Components, likely Firestop Blocks (FBB) and Foam Barrier (FBS), are being applied around the conductors. Product codes 508155, 508150, and 508153 are displayed.

Section 10: Material Application and Time Requirement

Diagram illustrates the application of fire barrier material in a wall penetration. A timer icon indicates a 2-minute application time ⏱️. Warning icons ⚠️ and a prohibition symbol ? are shown, along with a cutting tool, suggesting caution or specific handling procedures.

Section 11: Component Placement and Dimensions (FIB)

Diagram shows a wall cross-section with conductor bundles. Dimensions are specified: IF < 200mm and ≥ 150mm. Two circular components, identified as Insulating Bandage (FIB) [Product Code: 508152], are depicted.

Section 12: Final Component Placement and Dimension

Diagram illustrates a wall cross-section with conductor bundles. A final dimension of ≥ 45mm is indicated. Product code 508152 is shown, likely referring to the Insulating Bandage (FIB).

WARNING:

1. nVent products shall be installed and used only as indicated in nVent product instruction sheets and training materials. Instruction sheets are available at www.nVent.com and from your nVent customer service representative.

2. nVent products must never be used for a purpose other than the purpose for which they were designed or in a manner that exceeds specified load ratings.

3. All instructions must be completely followed to ensure proper and safe installation and performance.

4. 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.

SAFETY INSTRUCTIONS:

All governing codes and regulations and those required by the job site must be observed.

Always use appropriate safety equipment such as eye protection, hard hat, and gloves as appropriate to the application.

Technical Specifications and Component Quantities

The following tables provide detailed specifications for opening sizes, conductor cross-sections, and the required quantities of Firestop Blocks (FBB), Foam Barrier (FBS), and Insulating Bandage (FIB) for different configurations.

3P+N Configurations

Minimum opening size of the penetration seal (mm)	1 Conductor per phase configuration				2 Conductors per phase configuration
Minimum opening size of the penetration seal (mm)	W: 420 H: 185	W: 180 H: 475	W: 270 H: 260	W: 445 H: 150	W: 240 H: 300	W: 420 H: 300	W: 270 H: 475	W: 445 H: 260	W: 420 x2 H: 185 x2
220, 360 545, 640 mm²	9	10	9	8	9	15	15	14	18
QTY Blocks FBB*	2	2	2	2	2	3	3	3	4
QTY Foam FBS**	1	1	1	1	1	1	1	1	1
QTY Bandage FIB***
Flexbus conductor cross section 960, 1280 1810 mm²	W: 465 H: 235	W: 230 H: 500	W: 370 H: 280	W: 370 x2 H: 160 x2	W: 265 H: 400	W: 465 H: 400	W: 370 H: 500	W: 370 x2 H: 280 x2	W: 465 x2 H: 235 x2
	13	14	12	14	13	22	22	24	26
	QTY Blocks FBB*	3	3	3	3	3	5	5	5	6
QTY Foam FBS**	1	1	1	1	1	2	2	2	2
QTY Bandage FIB***

3P Configurations

Minimum opening size of the penetration seal (mm)	1 Conductor per phase configuration			2 Conductors per phase configuration
Minimum opening size of the penetration seal (mm)	W: 330 H: 185	W: 180 H: 370	W: 355 H: 150	W: 330 H: 300	W: 270 H: 370	W: 355 H: 260	W: 330 x2 H: 185 x2
220, 360 545, 640 mm²	8	8	7	12	12	11	15
QTY Blocks FBB*	2	2	2	3	3	3	3
QTY Foam FBS**	1	1	1	1	1	1	1
QTY Bandage FIB***
Flexbus conductor cross section 960, 1280 1810 mm²	W: 365 H: 235	W: 230 H: 400	W: 500 H: 160	W: 365 H: 400	W: 370 H: 400	W: 500 H: 280	W: 365 x2 H: 235 x2
	10	11	10	17	18	17	20
	QTY Blocks FBB*	2	3	2	4	4	4	4
QTY Foam FBS**	1	1	1	1	1	1	1
QTY Bandage FIB***

* FBB (508151/508154) Firestop Blocks Packing unit is 4pc (12pc for North Amrecia / UL Version).

** FBS (508150/508153) Foam Barrier Packing unit is 6pc.

*** FIB (508152) Insulating Bandage Packing unit is 1pc. Need to be used only is wall thickness is < to 200mm.

Qty of Firestop Blocks FBB and Foam Barrier FBS from this table are given for a wall thickness of 200mm. For other thickness, apply % ratio. Example: for 150mm thickness, reduce by 25% the Qty.

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