Leeson 3/4 HP Explosion Proof Motor 56

Leeson A6T17XB21 0.75 HP explosion proof electric motor is a three phase, 1800 RPM 56 frame size motor with a rigid base. This hazardous application motor is rated for Division I and Division II, class I, groups C and D, as well as Class II Groups F and G. Being manufactured in accordance to National Electrical Manufacturers Association (NEMA) standard means that this electric motor will drop-in replace most of the common brands out there, and this motor even includes an explosion proof conduit box. More specifically, Leeson motors use a premium double-shielded ball bearing, has an industry leading warrantee, and meets all UL as well as CSA Safety Requirements. The A6T17XB21 (catalog # 111923.00) explosion proof motor has an automatic overload protection for additional safety and ease of mind. When making a selection of an explosion proof motor it is important to select a motor that is approved for use in the specific class or group that defines the hazardous environment the motor will run in, refer to "Explosion Proof Motor Classification" on our main explosion proof motor main page for more information. For additional information or to get a quote on a Leeson Three-Phase 3/4 HP Explosion Proof Electric Motor, 1800 RPM, 56 Frame, Rigid Base please contact us and we will be happy to assist you.

Leeson A6T17XB21 Explosion Proof Motor Specifications

• Download - A6T17XB21 Motor Connection
• Download - A6T17XB21 Motor Outline/ Drawing
• Download - A6T17XB21 Motor Certification
• Download - A6T17XB21 Motor Performance
• Download - A6T17XB21 Motor Operation Manual
• Download - A6T17XB21 Motor Complete Data Pack

A6T17XB21 General Information

UPC	Weight	Package Length	Package Width	Package Height
691720010167	31.00 LB	16.10 IN	10.25 IN	9.12 IN

A6T17XB21 Nameplate Information

Output HP	Frequency	Current	Service Factor	Efficiency
0.75 Hp	60 Hz	2.9-3.0/1.5 A	1	75.5%
Duty	Design Code	Frame	Thermal Protection	Drive End Bearing Size
Continuous	B	56	Automatic	6203
UL	CE	Hazardous Location	Output KW	Voltage
UL Listed And CSA Certified	N	EXP PROOF CL I GR C&D CL II GR F&G T3C	0.56 kW	208-230/460 V
Speed	Phase	Power Factor	Insulation Class	KVA Code
1725 rpm	3	66.3	B	L
Enclosure	Ambient Temperature	Opp Drive End Bearing Size	CSA	IP Code
Explosion Proof Fan cooled	40 °C	6203	Y	54

Hazardous Location: EXP PROOF CL I GR C&D CL II GR F&G T3C

A6T17XB21 Technical Information

Electrical Type	Poles	Resistance Main	Motor Operation
Squirrel Cage Induction Run	4	23.2 Ohms	Horizontal
Opp Drive End Bearing	Shaft Type	Frame Length	Shaft Extension
Ball	NEMA 56	6.81 in	1.88 in
Starting Method	Rotation	Mounting	Drive End Bearing
Across The Line	Reversible	Rigid base	Ball
Frame Material	Overall Length	Shaft Diameter	Assembly/ Box Mounting
Rolled Steel	13.94 in	0.625 in	F1 ONLY

A6T17XB21 Speed Characteristics

Curve-Point	Current (Amps)	Current (%)	Torque (ft-lbs)	(%)	Speed (RPM)	Rated Output (KW)	Power Factor (%)	Rated Output (HP)
1/3	8.80	587.0	7.00	307.0	400	-	-	0.75
No Load	1.00	67.0	0.00	0.0	1,800	-	-	0.75
Break-Down	6.00	400.0	10.0	439.0	1,230	-	-	0.75
Locked-Rotor	9.30	620.0	8.20	360.0	0	-	75.0	0.75
Full Load	1.50	100.0	2.28	100.0	1,725	-	-	0.75
Pull-Up	8.40	560.0	7.40	325.0	750	-	-	0.75
2/3	7.90	527.0	8.60	377.0	1,000	-	-	0.75

A6T17XB21 Load Characteristics

% of Rated Load	0%	25%	50%	75%	100%	115%	125%	150%	175%
Current (Amps)	1.00	1.10	1.15	1.25	1.50	1.65	1.60	1.70	2.00
Rated Output (KW)	0.10	0.24	0.40	0.55	0.72	0.85	0.88	1.10	1.30
Efficiency (%)	0.0	55.5	71.0	74.5	75.5	76.5	77.5	78.5	78.0
Power Factor (%)	11.5	29.0	45.5	57.0	66.3	71.0	73.0	78.0	81.0
Speed (RPM)	1,800	1,785	1,770	1,750	1,725	1,722	1,720	1,715	1,695
Temp. Rise @ FL	0.0	0.0	0.0	0.0	35.0	0.0	0.0	0.0	0.0
Torque (ft-lbs)	0.00	0.52	1.10	1.70	2.28	2.60	2.80	3.50	4.10