KP351 Packaged Blower

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Select Model Type

Electrical (Volts):
Air Discharge:

Model	Volts	Hz	CFM @ 0" S.P.	Cutoff S.P.	RPM Nominal	Amps		Watts	Approx. Weight		Air Discharge
Model	Volts	Hz	CFM @ 0" S.P.	Cutoff S.P.	RPM Nominal	Run	L.R.	Watts	Lbs.	Kg.	Air Discharge
KP351A	115	50	170	1.21	2700	1.24	1.88	101	18	8.2	Rear, Upward
	115	60	184	1.65	2900	1.27	1.60	115	18	8.2	Rear, Upward
KP351B	115	50	170	1.21	2700	1.24	1.88	101	18	8.2	Rear
	115	60	184	1.65	2900	1.27	1.60	115	18	8.2	Rear
KP351R	115	50	150	1.07	2700	1.22	1.88	101	18	8.2	Front
	115	60	162	1.41	2900	1.24	1.60	114	18	8.2	Front
K2P351A	230	50	165	1.18	2700	0.62	0.92	101	18	8.2	Rear, Upward
	230	60	169	1.61	2900	0.62	0.60	108	18	8.2	Rear, Upward
K2P351B	230	50	165	1.18	2700	0.62	0.92	101	18	8.2	Rear
	230	60	169	1.61	2900	0.62	0.60	108	18	8.2	Rear
K2P351R	230	50	155	1.21	2700	0.57	0.92	90	18	8.2	Front
	230	60	161	1.65	2900	0.62	0.60	112	18	8.2	Front

TECHNICAL DATA

Model Number	Volts	Hz	CFM @ 0" S.P.	Watts	Air Discharge
KP351A	115	115	170	101	Rear, Upward
Cutoff S.P.: 1.21 RPM Nominal: 2700 Amps, Run: 1.24 Amps, L.R.: 1.88 Approx. weight: 18 lbs. (8 kg)
KP351A	115	115	184	115	Rear, Upward
Cutoff S.P.: 1.65 RPM Nominal: 2900 Amps, Run: 1.27 Amps, L.R.: 1.60 Approx. weight: 18 lbs. (8 kg)
KP351B	115	115	170	101	Rear
Cutoff S.P.: 1.21 RPM Nominal: 2700 Amps, Run: 1.24 Amps, L.R.: 1.88 Approx. weight: 18 lbs. (8 kg)
KP351B	115	115	184	115	Rear
Cutoff S.P.: 1.65 RPM Nominal: 2900 Amps, Run: 1.27 Amps, L.R.: 1.60 Approx. weight: 18 lbs. (8 kg)
KP351R	115	115	150	101	Front
Cutoff S.P.: 1.07 RPM Nominal: 2700 Amps, Run: 1.22 Amps, L.R.: 1.88 Approx. weight: 18 lbs. (8 kg)
KP351R	115	115	162	114	Front
Cutoff S.P.: 1.41 RPM Nominal: 2900 Amps, Run: 1.24 Amps, L.R.: 1.60 Approx. weight: 18 lbs. (8 kg)
K2P351A	230	230	165	101	Rear, Upward
Cutoff S.P.: 1.18 RPM Nominal: 2700 Amps, Run: 0.62 Amps, L.R.: 0.92 Approx. weight: 18 lbs. (8 kg)
K2P351A	230	230	169	108	Rear, Upward
Cutoff S.P.: 1.61 RPM Nominal: 2900 Amps, Run: 0.62 Amps, L.R.: 0.60 Approx. weight: 18 lbs. (8 kg)
K2P351B	230	230	165	101	Rear
Cutoff S.P.: 1.18 RPM Nominal: 2700 Amps, Run: 0.62 Amps, L.R.: 0.92 Approx. weight: 18 lbs. (8 kg)
K2P351B	230	230	169	108	Rear
Cutoff S.P.: 1.61 RPM Nominal: 2900 Amps, Run: 0.62 Amps, L.R.: 0.60 Approx. weight: 18 lbs. (8 kg)
K2P351R	230	230	155	90	Front
Cutoff S.P.: 1.21 RPM Nominal: 2700 Amps, Run: 0.57 Amps, L.R.: 0.92 Approx. weight: 18 lbs. (8 kg)
K2P351R	230	230	161	112	Front
Cutoff S.P.: 1.65 RPM Nominal: 2900 Amps, Run: 0.62 Amps, L.R.: 0.60 Approx. weight: 18 lbs. (8 kg)

Standard Features
Accessories & Options
Performance
Arrangement
Similar Models
Documents
Suggested Setup

• 150-184 CFM Capacity
• Attractive 19-inch [482.6mm] stainless steel grilles
• Exhaust guards included
• Filter

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. Replacement filters are available and can be ordered online at kooltronic.com/spareparts.

• Inlet air cools motor for longer life
• Three foot [0.9m] (minimum) 3-wire power cord
• Twin blower design for maximum airflow
• UL/CSA Ball-Bearing Motors

All motors, whether permanent split capacitor or shaded pole, are UL/CSA Recognized and include automatic-reset thermal overload protection. Designed for low temperature rise, Kooltronic motors are also cooled by the blowers' intake air, for maximum motor life. All motors are UL Recognized and carry a Declaration of Conformity to applicable CE Standards. Special permanent lubricants perform over a broad temperature range: -20°F (-29°C) to 250°F (121°C).

• Adapters
• Airflow Switch
• Automatic Speed Control (Basic Blowers)
• EMI/RFI Shielding
• Grille Assemblies for replacement
• Replacement Filters

• Special external paint finishes
• Special line cord or connectors

KP351 Packaged Blower performance chart #2

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General Arrangement Thumbnail

KP351 Packaged Blower general arrangement drawing

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

Similar Models for this product family are not currently available. Please contact Customer Service for more information.

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Improve Airflow. Maximize Performance.

Kooltronic KP351 intake (KP351A/B) and exhaust (KP351R) rack-mount blowers can be combined to efficiently manage airflow and maximize heat dissipation within an electrical enclosure, control cabinet, or server rack.

The Setup: Intake + Exhaust

The intake and exhaust enclosure cooling setup utilizes two KP351 Rack-Mount Blowers working in tandem. A KP351A/B Standard Rack-Mount Blower with intake airflow (pictured at the bottom of the enclosure) supplies clean, cool air, while a KP351R Reverse Airflow Rack-Mount Blower (shown at the top of the enclosure) actively expels the warmer air and removes the excess heat load. This combination offers several advantages:

✅ Lower operating temperatures within your electrical enclosure or server rack.

✅ Protect and extend the lifespan of heat-sensitive components.

✅ Improve cooling efficiency and optimize energy usage.

KP351 intake and exhasut rack-mount blowers combined to maximize airflow

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

	KP351A/B (Intake) Data Sheet [3041Kb]
	KP351R (Exhaust) Data Sheet [3395Kb]

	KP351 (A/B) Packaged Blower General Arrangement Drawing [145Kb]
	KP351R Packaged Blower General Arrangement Drawing [83Kb]

KP351 Standard Twin Rack-Mount Blowers

Improve Airflow. Maximize Performance.

The Setup: Intake + Exhaust