NEMA NEMA 4 or 4X
MAINTAINED

Select Model Type

Electrical (Volts/Hz):
NEMA Rating:

Air Flow:

Model	Airflow Direction	NEMA Rating	Voltage	Input Amps	Input Watts	Max. Airflow CFM*	Unit Airflow CFM**	Noise db(A)	Operating Temp. °F		Approx. Weight
Model	Airflow Direction	NEMA Rating	Voltage	Input Amps	Input Watts	Max. Airflow CFM*	Unit Airflow CFM**	Noise db(A)	Min.	Max.	Lbs.	Kg.
KNP355FL	Intake	NEMA 4	115	5.89	418	756	748	64	-13	140	52	23.5
KNP355RFL	Exhaust	NEMA 4	115	5.89	418	756	748	64	-40	158	52	23.5
K2NP355FL	Intake	NEMA 4	230	1.82	402	1319	1310	61	-40	158	52	23.5
K2NP355RFL	Exhaust	NEMA 4	230	1.82	402	1319	1310	61	-40	158	52	23.5
KNP355FLV	Intake	NEMA 4X	115	5.89	418	756	748	64	-13	140	52	23.5
KNP355RFLV	Exhaust	NEMA 4X	115	5.89	418	756	748	64	-13	140	52	23.5
K2NP355FLV	Intake	NEMA 4X	230	1.82	402	1319	1310	61	-40	158	52	23.5
K2NP355RFLV	Exhaust	NEMA 4X	230	1.82	402	1319	1310	61	-40	158	52	23.5

TECHNICAL DATA

Model Number:	Airflow Direction:	NEMA Rating:	Voltage:	Fan Airflow CFM*:	Unit Airflow CFM**:
KNP355FL	Intake	NEMA 4	115	756	748
Input Amps: 5.89 Input Watts: 418 Noise db(A): 64 Min. Operating Temp. °F: -13 Max. Operating Temp. °F: 140 Approx. weight: 52 lbs. (24 kg)
KNP355RFL	Exhaust	NEMA 4	115	756	748
Input Amps: 5.89 Input Watts: 418 Noise db(A): 64 Min. Operating Temp. °F: -40 Max. Operating Temp. °F: 158 Approx. weight: 52 lbs. (24 kg)
K2NP355FL	Intake	NEMA 4	230	1319	1310
Input Amps: 1.82 Input Watts: 402 Noise db(A): 61 Min. Operating Temp. °F: -40 Max. Operating Temp. °F: 158 Approx. weight: 52 lbs. (24 kg)
K2NP355RFL	Exhaust	NEMA 4	230	1319	1310
Input Amps: 1.82 Input Watts: 402 Noise db(A): 61 Min. Operating Temp. °F: -40 Max. Operating Temp. °F: 158 Approx. weight: 52 lbs. (24 kg)
KNP355FLV	Intake	NEMA 4X	115	756	748
Input Amps: 5.89 Input Watts: 418 Noise db(A): 64 Min. Operating Temp. °F: -13 Max. Operating Temp. °F: 140 Approx. weight: 52 lbs. (24 kg)
KNP355RFLV	Exhaust	NEMA 4X	115	756	748
Input Amps: 5.89 Input Watts: 418 Noise db(A): 64 Min. Operating Temp. °F: -13 Max. Operating Temp. °F: 140 Approx. weight: 52 lbs. (24 kg)
K2NP355FLV	Intake	NEMA 4X	230	1319	1310
Input Amps: 1.82 Input Watts: 402 Noise db(A): 61 Min. Operating Temp. °F: -40 Max. Operating Temp. °F: 158 Approx. weight: 52 lbs. (24 kg)
K2NP355RFLV	Exhaust	NEMA 4X	230	1319	1310
Input Amps: 1.82 Input Watts: 402 Noise db(A): 61 Min. Operating Temp. °F: -40 Max. Operating Temp. °F: 158 Approx. weight: 52 lbs. (24 kg)

Standard Features
Accessories & Options
Performance
Arrangement
Similar Models
Documents
360° View

• Baked Powder Finish

Heavy-duty steel shell with powder-baked finish (ANSI 61 gray). Custom color options are available.

• Integrated Fan Guards
• Integrated Sealing Gasket
• IP55 Filter Protection
• NEMA 4 or 4X Rating Maintained (if used with provided filter)
• Secure Mounting
• Six-Foot [1.8m] (minimum) 3-Wire Power Cord
• Stainless Steel Shell (NEMA 4X models)

For applications in corrosive or other hostile environments such as those requiring Internal Corrosion Resistant Coatings, especially where chemical/moisture combinations are present.

• UL shielded ball bearing motors
• Washable, Reuseable Filter

• Other voltages and frequencies
• Reversed Airflow Direction

To order reversed airflow, add "R" after the series number. Example: KNP225RFL

• Replacement Filters

All Kooltronic filters consist of a multi-layer grid of sturdy corrugated aluminum, securely held in a one-piece aluminum frame. Filters are required wherever air is drawn into an electronics enclosure or related cooling equipment to keep internal parts as clean as possible. These filters are reusable (they may be washed and recoated with the appropriate filter recoating adhesive). Replacements are available for those that become damaged or otherwise non-serviceable.

• Stainless Steel Shell

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General Arrangement Thumbnail

KNP355FL Filter Fans general arrangement drawing

Dimensions, inches [mm], are for reference only and subject to change.

Model	Guideline Dimensions (H x W x D)*	CFM @0" S.P.
KNP315FL Filter Fans	30.00 x 17.34 x 22.12	486-616
*See model specifics for drawings, dimensions, mounting or cutout plans.

GA Drawing

	Guardian Series KNP355FL NEMA 4 or 4X Indoor/Outdoor Filter Fans Drawing [279Kb]
	Guardian Series KNP355RFL NEMA 4 or 4X Indoor/Outdoor Filter Fans Drawing [266Kb]

Installation Instructions

Guardian Series Filter Fan KNP355 Installation Instructions [335Kb]

Literature

	Increasing the Lifespan and Reliability of Electrical Components [212Kb]
	Kooltronic Custom Capabilities Flyer [2194Kb]
	Kooltronic Custom Cooling Medical Flyer [211Kb]
	Kooltronic Design Guide/Catalog (220 pages) [229400Kb]
	Kooltronic Refrigeration System Manufacturing [55Kb]
	Kooltronic Standard Warranty [55Kb]
	Kooltronic Unit Longevity Press Release [167Kb]
	NEMA Enclosure Ratings [91Kb]
	Short-Form Catalog (16 pages) [897Kb]
	Fans & Fantrays Quick-Sheet [87Kb]
	Airflow Switch Data Sheet [159Kb]
	Advantage Series Filter Fan Brochure [376Kb]
	Filter Fan Flyer [136Kb]
	Guardian Series NEMA 4 or 4X Filter Fan Flyer [1047Kb]
	Laboratory Environmental Testing Services [157Kb]
	Powder Paint Application Facilities Flyer [165Kb]

Operator's Manual

Guardian Series Filter Fan KNP355 Operator's Manual [867Kb]

Double-click for a full-screen 360° view

Pictured: KNP355RFLV (Stainless Steel, NEMA 4X) model. Colors and effects in the images may deviate from original depending on your screen's resolution.

Contact Info:
	Kooltronic, Inc. 30 Pennington-Hopewell Road Pennington, NJ 08534 USA
	609-466-3400 800-321-KOOL
	609-466-1114 (fax)
	Contact Us

	KNP355FL(V) 3D Solid Model [14423Kb]
	KNP355RFL(V) 3D Solid Model [20492Kb]

Guardian Series KNP355FL NEMA 4 or NEMA 4X Indoor/Outdoor Filter Fans

Double-click for a full-screen 360° view

Guardian Series KNP355FL NEMA 4 or NEMA 4X
Indoor/Outdoor Filter Fans