Standard type sensorless GNB2 Series

High efficiency and energy savings
Motor efficiency same level as IE3 (premium efficiency)!
Note: IE3 is an efficiency class based on IEC 60034-30.
Compact and lightweight
Volume ratio: On average 35% improvement,
Mass ratio: On average 40% improvement ! (in-company comparison)
The motor frame number of frames 1 to 3 is lower than that of induction motors. Machinery can be made compact and space-saving.
High power factor
Reduces the power receiving equipment capacity !
In addition to high efficiency, the higher power factor than the induction motor can lower current capacity of the equipment.
Maintenance friendly
Easy bearing replacement !
A structure that facilitates bearing replacement work without taking out the rotor improves on-site replacement and work efficiency.

Rated output〔kW〕		5.5	7.5	11	15	18.5	22	30	37	45	55	75	90
Base rotor speed〔min^-1〕		1800
Rated torque〔N・m〕		29.2	39.8	58.3	79.5	98.1	117	159	196	239	292	398	477
Type		GNB2
Center height〔mm〕 (induction motor)		112 (132）		112 (160）		132 (180）			160 (200）		180 (225）	180 (250）	200 (250）
Rated current value (secondary side)〔A〕	200V	20	29	42	57	70	80	108	144	160	200	270	316
Rated current value (secondary side)〔A〕	400V	10	15	21	29	35	40	54	72	80	100	135	158
Moment of inertia〔kg・m²〕		0.014	0.018	0.021	0.029	0.049	0.065	0.081	0.153	0.191	0.325	0.432	0.721
Number of poles		6P
Protective structure (protection method)		Totally enclosed fan-cooled type(IP44)
Mounting method		Leg mounting type (IMB3)
Overload capacity		120% for 1 minute				150% for 1 minute
Time rating		S1 (continuous)
Insulation thermal class		155 (F)
Direction of rotation		Direction is counterclockwise (CCW) as seen from the operation side
Noise (at 1m)〔dB(A)〕		70 or less							80 or less
Vibration (p-p)〔μm〕		10 or less
Vibration resistance〔m/s²〕		6.86 (0.7G）
Installation location		Indoor, altitude of 1000 m or less
Ambient temperature, humidity		−10 to +40°C, 90% RH or less (noncondensing)
Color of coating		Munsell N1.2

Rated output〔kW〕		110	132	160	200	220	250	280	300	315
Base rotor speed〔min^-1〕		1800
Rated torque〔N・m〕		583	700	848	1061	1167	1326	1485	1591	1671
Type		GNB2
Center height〔mm〕 (induction motor)		225 (280)		250 (315)			280 (315)		280 (355)
Rated current value (secondary side)〔A〕	200V	−	−	−	−	−	−	−	−	−
Rated current value (secondary side)〔A〕	400V	190	223	273	336	376	440	465	520	545
Moment of inertia〔kg・m²〕		0.792	0.898	1.72	2.00	2.26	2.86	3.19	3.54	3.54
Number of poles		6P
Protective structure (protection method)		Totally enclosed fan-cooled type (IP54)
Mounting method		Leg mounting type (IMB3)
Overload capacity		150% for 1 minute
Time rating		S1 (continuous)
Insulation thermal class		155 (F)
Direction of rotation		Direction is counterclockwise (CCW) as seen from the operation side
Noise (at 1m)〔dB(A)〕		90 or less
Vibration (p-p)〔μm〕		10 or less
Vibration resistance〔m/s²〕		6.86 (0.7G)
Installation location		Outdoor, altitude of 1000 m or less
Ambient temperature, humidity		−10 to +40°C, 90% RH or less (noncondensing)
Color of coating		Munsell N1.2

Note 1: Special-purpose motors with base rotor speeds of 1000, 1200, 1500, 3000, and 3600 min-1 can also be manufactured.

Note 2: Contact us when switching from commercial operation.

Note 3: Flange mounting type can be manufactured for motor frame numbers of 160 and below.

Note 4: Contact us if you require a special-purpose motor with a rated output of 3.7 kW or less, or a motor over 315 kW.

Slide base rails

Dimensions for the standard type GNB and GNF2 series only

〔Unit: mm〕

Frame size	Type		Part number code	Mass (approx) 〔kg〕
Frame size	Type		Part number code	Mass (approx) 〔kg〕	112Mh	SB	112MH	MXB1100	3.6
112Jh	112JH	MXB1101	9
132Lh	132LH	MXB1102	11
132Hh	132HH	MXB1103	12
160Lg	160LG	MXB1104	22
160Jg	160JG	MXB1105	23
180Lg	180LG	MXB1106	25
180Jg	SR	200JG	MXR1100	2×19
200Jg	SR	200JG	MXR1100	2×19

Note 1: Only available for the GNB2 Series (sensorless) and GNF2 Series (with sensor) standard type synchronous motors.

Note 2: The above are all standard inventory products.

Note 3: The paint color is Munsell N1.2 (black).

Grounding rings

In general, a grounding brush is incorporated in motors with frame numbers of 225 or higher to prevent bearing electric corrosion. The grounding brush is a consumable part and must be replaced periodically. A maintenance-free grounding ring (Aegis® SGR) is also available as an option when it is difficult to replace the grounding brush depending on the installation location or operating conditions.