6601-23A-USS-EC
Terra Part # 6601-23A-USS-EC
$3,999
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Fan Filter Unit; Smart® ECM, 2'x3', ULPA, 120/230 V, Stainless Steel, WhisperFlow, BioSafe®
Product Details
  • Available ISO Ratings: ISO 4, ISO 5, ISO 6, ISO 7, ISO 8
  • Customer must determine if filter system leakage testing is required for this application.  This unit is not full seam-welded.  If a leak test is required, full-body seam-welded units designed to meet ISO 14644-3 leak-testing requirements are available.
  • Ships in 120V configuration. Can be easily be reconfigured to 230V
  • Ultra-Low Particulate Air (ULPA) Filter: 99.999% efficient at 0.12µm particle diameter
  • All-304 stainless steel BioSafe® housing, baffle plate, filter face grille, filter frame and impeller ensure optimal cleanliness and stand up to alcohol and other cleaning agents
  • Electronically commutated (EC) brushless motor with internal microprocessor
  • EC motor offers high performance, low energy consumption & low noise levels (40 dB)
  • Can be incorporated into Building Management Systems (BMS) to allow remote monitoring and control
  • MODBUS® networking control card with closed-loop control capability that supports air pressure, air flow, and particle count sensors
  • Motor control panel includes diagnostic indicator lights, manual speed adjustment, test probe jacks, CAT5e ports, control mode switch, and MODBUS® address DIP switch bank
  • FDA-approved silicone sealant
  • Internal baffling plate and diffuser panel provide quiet uniform air flow across the filter face
  • 1/4-20 UNC threaded inserts on corners to allow suspension by guy-wires
  • MERV 7 pre-filter, 30% ASHRAE rated
  • Low-profile design is ideal for cleanrooms with limited ceiling space
  • Removable yellow power cord with 4-pin connector for easy installation to Terra cleanrooms (connector may be used with an optional wall plug adapter; or  may be removed entirely to hard-wire the FFU)
  • Filters are leak tested in accordance with IEST standards and meet UL 900
  • See performance data and submittal sheets for additional information
  • Optional Accessories:
  •           Challenge port kit
  •           Power plug adapter
  •           Stainless surface mount frame for installing FFU in ceiling without T-grid
  •           12” ducted inlet connection adapter
  •           Replacement filter
  •           Filter replacement alarm
  •           Eye bolt package
  •           Ionizing bar
  •           Pre-filter safety cover, for CE conformance
  •           Control panel with night mode switch and power distribution modules
  • All filter sales are final; returns for this item cannot be accepted

Type: Smart® ECM

Material: Stainless Steel

Filter Replacement Access: Top Side

Size: 2'x3'

Filter Frame Material: 304 Stainless Steel

Filter: ULPA

Motor Type: Electronically Commutated (EC)

Motor HP: 1/3 hp

Airflow: Positive Pressure

Speed Control: Variable Speed Control Card

Blower Type: Forward Curved

Active Filter Face Area: 5.2 ft²

Pre-Filter: MERV 7

RoHS: Compliant

Unit of Measure: EA

Marks & Listings: CE, UL, ULC

Electrical Specifications: 120/230 V, 4.1 A, 1 Ph, 1 Ph

Weight, Product: 53 lb

Dimensions, Product: 23.63" W x 35.63" D x 13" H

Weight, Shipping: 73 lb

Dimensions, Shipping: 53" W x 53" D x 20" H

Package Type: Palletized

Manuals & Resources
Buy Accessories
  1. Provides a stream of static-neutralizing ions to protect ESD-sensitive components.  |  2005-16A displayed
    $847
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  2. Eyebolt with 1/4"-20 thread for lifting FFUs  |  6601-02 displayed
    $23
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  3. Holds fan filter units secure in ceilings without grid.  |  6604-01 displayed
    $326
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  4. Simplifies filter leak testing and connection of Filter Backpressure Alarm  |  6601-99 displayed
    $89
    Increase Down Increase Up
  5. Cable Extension, PVC, 4 Poles, 5M, 22awg, 300V, straight male to straight female with close-up  |  6601-39 displayed
    $80
    Increase Down Increase Up
  6. Night service switch, shown mounted on Modular Hardwall Cleanroom panel, puts FFUs in low-energy mode during off-hours  |  6601-70 displayed
    $147
    Increase Down Increase Up
  7. Suitable for air handling  |  6602-40 displayed
    $181
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  8. Four-pin power cord adapter for fan/filter unit allows connection to standard 120VAC/60Hz power receptacle  |  6601-13 displayed
    $64
    Increase Down Increase Up
  9. FFU Connect pack includes flexible ducting and all hardware required to connect and seal the duct.  |  6601-01 displayed
    $202
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  10. Duct Flange Adapter for standard FFUs; 12" dia, 19.5" W x 19.5" D x 2" H, galvanized steel
    $153
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  11. FFU Testing and Certification; Flow Rate and Filter integrity
    Request Quote
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  12. FasTrak 24-7 Expediting Service
    Request Quote
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  13. ULPA Replacement Filter for FFU, with durable stainless steel frame to improve corrosion resistance  |  6601-28-S displayed
    $1,193.20 was $1,256
    Increase Down Increase Up
  14. MERV 7 pre-filter for Terra Fan Filter Units (FFUs)  |  6601-34 displayed
    $183
    Increase Down Increase Up
  15. ULPA Replacement Filter for FFU, with durable stainless steel frame to improve corrosion resistance  |  6601-28-S displayed
    $1,193.20 was $1,256
    Increase Down Increase Up

Fan Filter Units

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
Terra Universal WhisperFlow® Filter Fan Units

Features and Benefits

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Diffuser Panel Promotes Air Flow Uniformity and Protects Filter Integrity

Unlike other manufacturers, Terra’s FFUs include a unique perforated panel beneath the filter, acting as a shower head, to guarantee filter protection and laminar air flow uniformity, which prevents localized air swirling, particle build-up and turbulence.
>

Protect Against Contaminants and Pathogens

HEPA and ULPA filters help capture many bacteria, viruses (COVID-19), and mold spores that contribute to a host of infections for both humans and plant/animal tissue cultures
>

Gel-Filled Channel on Room-Side Replaceable Filter

Gel-filled channel on room-side replaceable filter forms a tight seal against knife edge on fan housing, allowing fast, simple filter replacement from inside the cleanroom without the need for costly cleanroom shut-down.
>

Airflow Uniformity Improves Laminar Flow

Non-uniform air speeds produce turbulence that can recirculate particles into the air stream. Unique WhisperFlow® FFU baffling system and anodized diffuser plate promotes uniform laminar airflow to minimize turbulence and effectively carry away contaminating particles.
>

Full Range of Designs, Configurations!

WhisperFlow FFUs come in all styles: room-side replaceable, all-stainless steel, HEPA or ULPA filtration, EC energy-saving fans, reverse flow and more (shown: vapor filtration module with UV sanitation lamp).
>

Smart Fan Filter Unit with EC Motor

Smart WhisperFlow® Fan Filter Units are quiet, energy-efficient and easily adjustable, either manually or via automatic smart console, for centralized fan speed control and cleanroom pressure balancing.
>

Catalog of CE-Marked Products

Terra offers over 1,700 CE-marked products configured for international voltage requirements
>

Products Compliant With Your ISO Rating

High-capacity, durable, ISO-compliant system rated for thousands of operating hours.
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Fan Filter Unit Control System

    Provides room-by-room monitoring and control of Smart WhisperFlow FFUs to maintain target pressure differentials for ISO classification; temperature, humidity and particle monitoring and data logging, as well as dynamic fan set-point control, also available.
  • Night Service Saves Energy, Extends Filter Life!

    Night service switch, shown mounted on Modular Hardwall Cleanroom panel, puts FFUs in low-energy mode during off-hours; saves 25% of fan operating costs and extends filter life.
  • Filter Replacement Alarm

    The filter replacement alarm monitors filter backpressure and issues an alarm when filter needs replaced (requires selection of fan filter unit with challenge port, order separately).
  • Ionizing Bar; 22"L, with Installation Kit, for 24 x 24 Fan/Filter Unit

    Ionizing bar, mounted to Fan/Filter Unit, provides a balanced stream of ions to the work area below to neutralize static charge and prevent electro-static discharge; 22" bar shown installed on 2' x 2' FFU.
  • Challenge Port; for Fan/Filter Unit

    Challenge port for Fan/Filter Units simplifies filter leak testing and connection of Filter Backpressure Alarm (shown mounted on SS FFU, order separately).
  • Power Distribution Modules for Cleanroom FFUs and Lights

    UL-listed power distribution modules include all breakers, transformers and other electrical components for FFU/light connections; allows fast addition or relocation of FFUs or lights without the need for rewiring.
  • Cord Adapter, MIN4 PL to 16AWG Power Cord for Terra Fan/Filter Unit

    Four-pin power cord adapter for fan/filter unit allows connection to standard 120VAC/60Hz power receptacle.
  • FFU Mounting Frame; Stainless Steel

    Stainless steel Fan Filter Unit (FFU) mounting frame supports FFU on drywall or other rigid ceiling material, viewed from above ceiling panel (FFU not included).
  • Filter Covers Allow Ceiling Wash-Down

    Ceiling panel covers allow wash-down and sterilization of cleanroom walls and ceilings without damage to filter medium; requires BioSafe glass or stainless steel wall panels, which stand up to biocides.
  • Safely Mount FFU’s Above Floor for Horizontal Laminar Airflow

    The portable FFU base stand can be easily positioned to supply Class 100 horizontal laminar flow into a room or enclosure. It can also be positioned next to sensitive equipment/materials that are mounted close to the floor.

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
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Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.