4" NBS4 Motors

New design of Coverco 4" Submersible Rewindable Oil-Filled Motor

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NEW DESIGN

The design has been further developed to make it even more reliable and resilient. The design is more compact with excellent performance.
- Reliable and resilient construction
- New modernized winding design
- Robust mechanical design
- Excellent performance
- Reduction of plastic parts
- Suitable for VFD operation
- Flexibility of power supply, even at low voltages
FEATURES & BENEFITS
- Motors are pre-filled with a dielectric fluid (known as „white oil“), approved by the FDA and other international pharmacological institutes.
- The motors can be powered with single-phase and three-phase power supply.
- Reliable operation in wells with diameters of ≥ 4" for water up to 30 °C
- Axial and radial oil lubricated bearings allow maintenance-free operation (Ball bearings have a theoretical service life).
- Cable material compliant with drinking water standards
- Sand protection / Mechanical seal allow optimal operation even in the presence of sand in the well
- Excellent efficiency and low operating costs
TECHNICAL DATA
- Ratings: Low Thrust 0.37 – 2.2 kW
- 4" NEMA mounting design
- Protection IP68 and insulation class F
- Frequency of starts: 30 starts/hour
- Vertical and horizontal operation
- Suitable for VFD operation (230 V, without filter)
- Voltage:
- Single-phase: 210-220-230 V / 50 Hz - 220-230 V / 60 Hz
- Three-phase: 220-230 V / 50 Hz - 380-415 V / 50 Hz - 460 V / 60 Hz - 220-230 V / 60 Hz - 380 V / 60 Hz
- Voltage tolerance: UN -10% / +6%
- Motor protection: thermal relays in compliance with EN 60947-4-1, trip class 10 or 10 A, trip time < 10 s. at 5 x IN
- Nominal ambient temperature: 30 °C with 0.08 m/s cooling flow
- Cable dimensions: 4 x 1.5 mm²
- Water pH: 6.5 - 8
- Thrust load Low Thrust: 1500 N, 2500 N

PERFORMANCE DATA 1 PHASE 210-220-230 V 50 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ			Capacitor μF
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100	Capacitor μF
NBS4 050 M 275 846 1042	0.37	0.5	50	210	3.3	3.1	2806	1.3	0.69	1.91	39	49	55	0.92	0.96	0.98	20
				220	3.2	3.3	2835	1.3	0.75	2.09	37	48	55	0.88	0.94	0.97
				230	3.3	3.3	2850	1.2	0.82	2.29	34	45	53	0.82	0.89	0.94
NBS4 075 M 275 847 1042	0.55	0.75	50	210	4.7	2.7	2776	1.9	0.57	1.7	44	54	59	0.92	0.96	0.98	25
				220	4.5	3	2811	1.9	0.63	1.87	41	52	59	0.87	0.94	0.97
				230	4.6	3	2822	1.9	0.69	2.04	37	48	56	0.81	0.89	0.95
NBS4 100 M 275 848 1042	0.75	1	50	210	5.9	3.3	2835	2.5	0.62	1.94	46	56	63	0.88	0.94	0.97	36
				220	5.8	3.5	2855	2.5	0.68	2.13	44	55	61	0.81	0.9	0.96
				230	6.2	3.4	2865	2.5	0.74	2.32	42	52	59	0.74	0.84	0.91
NBS4 150 M 275 850 1042	1.1	1.5	50	210	8.2	3.1	2791	3.8	0.55	1.66	51	61	65	0.93	0.98	0.99	40
				220	8.1	3.3	2815	3.8	0.61	1.82	47	59	65	0.86	0.93	0.98
				230	8.3	3.3	2826	3.8	0.66	1.99	43	55	62	0.78	0.87	0.94
NBS4 200 M 275 851 1042	1.5	2	50	210	10.8	3.3	2793	5.1	0.57	1.71	53	62	66	0.98	1	1	50
				220	10.5	3.5	2815	5.1	0.63	1.87	51	61	65	0.93	0.98	0.99
				230	10.5	3.7	2833	5	0.68	2.05	47	58	64	0.85	0.93	0.97
NBS4 300 M 275 852 1042	2.2	3	50	210	15.9	3.1	2778	7.7	0.56	1.68	55	64	67	0.97	0.99	1	76
				220	15.1	3.4	2816	7.6	0.61	1.84	53	63	68	0.9	0.96	0.99
				230	15.4	3.5	2831	7.5	0.67	2.01	48	60	66	0.8	0.9	0.96

PERFORMANCE DATA 1 PHASE HT 210-220-230 V 50 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ			Capacitor μF
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100	Capacitor μF
NBS4K 300 M 275 852 1140	2.2	3.0	50	210	15.0	4.5	2790	7.52	0.60	2.09	60	68	72	0.96	0.98	0.99	76
				220	14.8	5.5	2810	7.49	0.67	2.20	57	67	71	0.91	0.96	0.98
				230	14.5	5.5	2830	7.42	0.73	2.33	54	64	70	0.82	0.91	0.96
NBS4K 400 M 275 849 4040	3.0	4.0	50	210	19.5	4.9	2910	9.84	1.13	2.22	62	71	75	0.94	0.97	0.98	100+178
				220	19.2	5.1	2920	9.82	1.24	2.43	61	70	74	0.85	0.93	0.96
				230	19.7	5.1	2930	9.78	1.37	2.68	56	66	73	0.73	0.84	0.92
NBS4K 550 M 275 854 4040	4.0	5.5	50	210	25.1	4.1	2890	13.2	0.83	1.83	66	74	77	0.93	0.97	0.98	130+178
				220	24.6	4.2	2900	13.1	0.92	2.17	62	72	76	0.85	0.93	0.97
				230	25.1	4.3	2910	13.1	0.99	2.28	55	67	74	0.75	0.87	0.94

PERFORMANCE DATA 1 PHASE HT 220-230 V 60 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ			Capacitor μF	SF A
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100	Capacitor μF	SF A
NBS4K 400 M 275 870 4040	3.0	4.0	60	220	19.5	6.5	3540	8.10	1.5	3.1	54	65	71	0.96	0.97	0.98	120+(156-200)	21.8
NBS4K 400 M 275 870 4040	3.0	4.0	60	230	19.5	6.6	3550	8.10	1.6	3.2	52	61	69	0.95	0.96	0.97	120+(156-200)	21.0
NBS4K 550 M 275 806 4040	4.0	5.5	60	220	26.0	4.9	3530	10.80	1.11	2.3	57	68	73	0.94	0.95	0.96	150+(156-200)	29.0
NBS4K 550 M 275 806 4040	4.0	5.5	60	230	25.5	5.1	3540	10.80	1.22	2.7	54	65	72	0.94	0.95	0.96	150+(156-200)	28.5

PERFORMANCE DATA 3 PHASE 220-230 V 50 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100
274 752 1042	0.55	0.75	50	220	3.11	4.39	2840	1.88	2.41	2.71	54	61	64	0.57	0.68	0.77
274 752 1042	0.55	0.75	50	230	3.3	4.35	2860	1.87	2.69	3.02	51	59	63	0.51	0.62	0.71
274 753 1042	0.75	1	50	220	3.8	4.77	2835	2.51	2.57	2.71	60	66	69	0.57	0.69	0.78
274 753 1042	0.75	1	50	230	4	4.77	2855	2.49	2.87	3.02	57	65	68	0.5	0.62	0.71
274 754 1042	1.1	1.5	50	220	5.35	4.74	2835	3.77	2.49	2.53	66	71	73	0.57	0.7	0.79
274 754 1042	1.1	1.5	50	230	5.57	4.8	2855	3.74	2.78	2.53	63	69	72	0.5	0.62	0.72
274 755 1042	1.5	2	50	220	6.56	4.68	2825	5.04	2.26	2.43	70	74	74	0.63	0.76	0.83
274 755 1042	1.5	2	50	230	6.78	4.77	2845	5.01	2.52	2.82	67	72	74	0.55	0.68	0.77
274 756 1042	2.2	3	50	220	9.85	4.56	2810	7.6	2.38	2.35	73	76	76	0.55	0.7	0.8
274 756 1042	2.2	3	50	230	10.61	4.45	2830	7.55	2.66	2.43	69	74	75	0.48	0.62	0.73

PERFORMANCE DATA 3 PHASE 380-400-415 V 50 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100
NBS4 050 T 274 761 1042	0.37	0.5	50	380	1.3	4.38	2845	1.25	2.44	2.73	50	57	61	0.59	0.69	0.76
				400	1.3	4.61	2865	1.24	2.72	3.05	49	57	61	0.54	0.64	0.72
				415	1.3	4.78	2880	1.24	2.95	3.3	48	56	61	0.5	0.6	0.68
NBS4 075 T 274 762 1042	0.55	0.75	50	380	1.8	4.39	2840	1.88	2.41	2.71	54	61	64	0.57	0.68	0.77
				400	1.9	4.38	2860	1.87	2.69	3.02	51	59	63	0.51	0.62	0.71
				415	1.9	4.54	2870	1.86	2.9	3.27	49	58	63	0.47	0.57	0.66
NBS4 100 T 274 763 1042	0.75	1	50	380	2.2	4.77	2835	2.51	2.57	2.71	60	66	69	0.57	0.69	0.78
				400	2.3	4.8	2855	2.49	2.87	3.02	57	65	68	0.5	0.62	0.71
				415	2.4	4.78	2865	2.49	3.1	3.27	55	63	67	0.45	0.56	0.66
NBS4 150 T 274 724 1042	1.1	1.5	50	380	3.1	4.74	2835	3.77	2.49	2.53	66	71	73	0.57	0.7	0.79
				400	3.2	4.83	2855	3.74	2.78	2.82	63	69	72	0.5	0.62	0.72
				415	3.4	4.72	2865	3.73	3	3.05	61	68	71	0.44	0.57	0.67
NBS4 200 T 274 725 1042	1.5	2	50	380	3.8	4.68	2825	5.04	2.26	2.43	70	74	74	0.63	0.76	0.83
				400	3.9	4.8	2845	5.01	2.52	2.71	67	72	74	0.55	0.68	0.77
				415	4.1	4.74	2860	4.98	2.73	2.93	64	71	73	0.48	0.62	0.72
NBS4 300 T 274 726 1042	2.2	3	50	380	5.7	4.56	2810	7.6	2.38	2.35	73	76	76	0.55	0.7	0.8
				400	6.1	4.49	2830	7.55	2.66	2.62	69	74	75	0.48	0.62	0.73
				415	6.4	4.44	2845	7.51	2.87	2.84	66	72	75	0.43	0.56	0.67
NBS4 400 T 274 764 4140	3.0	4.0	50	380	7.40	4.5	2780	10.30	2.5	2.8	73	74	75	0.59	0.73	0.83
				400	7.50	4.6	2810	10.18	2.7	3.2	69	73	74	0.51	0.66	0.78
				415	7.90	4.8	2825	10.16	3.0	3.4	66	72	73	0.47	0.60	0.72
NBS4 550 T 274 765 4140	4.0	5.5	50	380	9.60	5.1	2800	13.62	2.8	2.9	77	79	79	0.57	0.72	0.82
				400	9.80	5.1	2820	13.53	3.1	3.1	74	78	78	0.50	0.64	0.77
				415	10.30	5.1	2835	13.48	3.4	3.2	70	76	77	0.45	0.59	0.71
NBS4 750 T 274 728 4140	5.5	7.5	50	380	12.60	5.2	2825	18.60	2.5	2.7	79	80	80	0.63	0.77	0.86
				400	12.50	5.4	2845	18.44	2.7	2.8	77	80	80	0.55	0.71	0.82
				415	12.80	5.4	2860	18.37	2.9	3.0	74	79	79	0.50	0.65	0.78

PERFORMANCE DATA 3 PHASE 220-230 V 60 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ			SF A	SF
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100	SF A	SF
NBS4 050 T 274 711 1042	0.37	0.5	60	220	2.5	5.23	3480	1	2.84	3.8	44	53	58	0.55	0.64	0.71	3.1	1.24
NBS4 050 T 274 711 1042	0.37	0.5	60	230	2.5	5.47	3495	1	3.12	4.17	43	52	58	0.5	0.59	0.67	3.1	1.24
NBS4 075 T 274 712 1042	0.55	0.75	60	220	3.5	5.1	3470	1.5	2.97	3.63	50	59	63	0.52	0.63	0.71	4.1	1.17
NBS4 075 T 274 712 1042	0.55	0.75	60	230	3.5	5.33	3485	1.5	3.26	3.98	49	58	63	0.47	0.57	0.66	4.1	1.17
NBS4 100 T 274 713 1042	0.75	1	60	220	4.1	5.48	3460	2.1	2.91	3.33	58	65	68	0.54	0.65	0.73	5	1.22
NBS4 100 T 274 713 1042	0.75	1	60	230	4.1	5.73	3475	2	3.19	3.66	56	64	68	0.49	0.6	0.69	5	1.22
NBS4 150 T 274 714 1042	1.1	1.5	60	220	5.6	5.51	3455	3.1	3.24	3.2	67	72	74	0.54	0.67	0.75	6.3	1.13
NBS4 150 T 274 714 1042	1.1	1.5	60	230	5.6	5.76	3470	3.1	3.56	3.51	68	71	74	0.47	0.61	0.71	6.3	1.13
NBS4 200 T 274 715 1042	1.5	2	60	220	7.1	5.29	3445	4.1	2.82	2.97	68	73	75	0.56	0.69	0.77	8.1	1.14
NBS4 200 T 274 715 1042	1.5	2	60	230	7.1	5.53	3465	4.1	3.1	3.27	66	72	75	0.51	0.63	0.73	8.1	1.14
NBS4 300 T 274 716 1042	2.2	3	60	220	9.9	4.97	3425	6.2	2.53	2.72	71	76	77	0.59	0.72	0.8	10.9	1.1
NBS4 300 T 274 716 1042	2.2	3	60	230	9.9	5.2	3445	6.2	2.78	2.99	70	75	77	0.53	0.67	0.76	10.9	1.1
NBS4 400 T 274 776 4140	3.0	4.0	60	220	14.2	6.0	3470	8.25	3.4	4.3	70	76	77	0.50	0.63	0.73	15.1	-
NBS4 400 T 274 776 4140	3.0	4.0	60	230	15.1	6.2	3490	8.25	3.6	4.5	69	75	76	0.47	0.60	0.66	15.7	-
NBS4 550 T 274 777 4140	4.0	5.5	60	220	16.8	6.4	3450	11.1	3.1	3.4	76	79	80	0.58	0.71	0.79	18.5	-
NBS4 550 T 274 777 4140	4.0	5.5	60	230	17.0	6.3	3460	11.0	3.3	3.6	73	78	80	0.51	0.64	0.75	18.6	-
NBS4 750 T 274 718 4140	5.5	7.5	60	220	21.0	6.4	3470	15.1	2.6	3.0	78	81	82	0.63	0.76	0.84	23.8	-
NBS4 750 T 274 718 4140	5.5	7.5	60	230	21.1	6.4	3485	15.1	2.7	3.2	78	81	82	0.56	0.70	0.79	23.6	-

PERFORMANCE DATA 3 PHASE 380 V 60 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ			SF A	SF
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100	SF A	SF
NBS4 050 T 274 741 1042	0.37	0.5	60	380	1.5	5.47	3495	1	3.12	4.17	43	52	58	0.5	0.59	0.67	1.9	1.27
NBS4 075 T 274 742 1042	0.55	0.75	60	380	2.1	5.33	3485	1.5	3.26	3.98	49	58	63	0.47	0.57	0.66	2.5	1.19
NBS4 100 T 274 743 1042	0.75	1	60	380	2.5	5.73	3475	2	3.19	3.66	56	64	68	0.49	0.6	0.69	3	1.2
NBS4 150 T 274 744 1042	1.1	1.5	60	380	3.4	5.76	3470	3.1	3.56	3.51	68	71	74	0.47	0.61	0.71	3.8	1.12
NBS4 200 T 274 745 1042	1.5	2	60	380	4.3	5.53	3465	4.1	3.1	3.27	66	72	75	0.51	0.63	0.73	4.9	1.14
NBS4 300 T 274 746 1042	2.2	3	60	380	6	5.2	3445	6.2	2.78	2.99	70	75	77	0.53	0.67	0.76	6.6	1.1
NBS4 400 T 274 774 4140	3.0	4.0	60	380	8.2	6.0	3470	8.24	3.5	4.3	70	75	77	0.50	0.63	0.73	8.7	-
NBS4 550 T 274 775 4140	4.0	5.5	60	380	10.2	6.3	3450	11.0	3.5	4.0	74	78	80	0.54	0.67	0.76	11.4	-
NBS4 750 T 274 748 4140	5.5	7.5	60	380	13.0	6.5	3490	15.0	3.1	3.8	78	81	83	0.55	0.69	0.78	14.5	-

PERFORMANCE DATA 3 PHASE 460 V 60 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ			SF A	SF
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100	SF A	SF
NBS4 050 T 264 761 1042	0.37	0.50	60	460	1.2	4.9	3470	1	2.69	3.59	44	53	58	0.57	0.66	0.73	1.6	1.27
NBS4 075 T 264 762 1042	0.55	0.75	60	460	1.7	4.83	3460	1.5	2.87	3.51	51	59	63	0.54	0.64	0.72	2.1	1.19
NBS4 100 T 274 763 1042	0.75	1.0	60	460	2.1	5.73	3475	2	3.19	3.66	56	64	68	0.49	0.6	0.69	2.5	1.2
NBS4 150 T 274 724 1042	1.1	1.5	60	460	2.8	5.76	3470	3.1	3.56	3.51	68	71	74	0.47	0.61	0.71	3.1	1.12
NBS4 200 T 274 725 1042	1.5	2.0	60	460	3.6	5.53	3465	4.1	3.1	3.27	66	72	75	0.51	0.63	0.73	4	1.14
NBS4 300 T 274 726 1042	2.2	3.0	60	460	5.3	5.18	3455	6.2	2.97	3.19	67	73	76	0.48	0.61	0.71	5.8	1.09
NBS4 400 T 274 764 4140	3.0	4.0	60	460	6.4	4.5	3450	8.24	2.5	2.8	73	75	78	0.59	0.72	0.75	7.0	-
NBS4 550 T 274 765 4140	4.0	5.5	60	460	8.3	5.1	3460	11.0	2.8	2.9	77	78	80	0.57	0.70	0.74	9.1	-
NBS4 750 T 274 728 4140	5.5	7.5	60	460	10.8	5.2	3480	15.0	2.5	2.7	79	80	81	0.63	0.76	0.80	12.0	-

PERFORMANCE DATA 3 PHASE HT 380-415 V 50 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100
NBS4K 300 T 274 726 1140	2.2	3.0	50	380	5.50	4.9	2800	7.51	2.4	2.9	70	73	74	0.63	0.76	0.83
				400	5.60	5.0	2825	7.44	2.8	3.1	68	73	74	0.56	0.69	0.78
				415	5.70	5.1	2840	7.39	3.0	3.3	66	72	73	0.50	0.64	0.73
NBS4K 400 T 274 764 4040	3.0	4.0	50	380	7.40	4.5	2780	10.30	2.5	2.8	73	74	75	0.59	0.73	0.83
				400	7.50	4.6	2810	10.18	2.7	3.2	69	73	74	0.51	0.66	0.78
				415	7.90	4.8	2825	10.16	3.0	3.4	66	72	73	0.47	0.60	0.72
NBS4K 550 T 274 765 4040	4.0	5.5	50	380	9.60	5.1	2800	13.62	2.8	2.9	77	79	79	0.57	0.72	0.82
				400	9.80	5.1	2820	13.53	3.1	3.1	74	78	78	0.50	0.64	0.77
				415	10.30	5.1	2835	13.48	3.4	3.2	70	76	77	0.45	0.59	0.71
NBS4K 750 T 274 728 4040	5.5	7.5	50	380	12.60	5.2	2825	18.60	2.5	2.7	79	80	80	0.63	0.77	0.86
				400	12.50	5.4	2845	18.44	2.7	2.8	77	80	80	0.55	0.71	0.82
				415	12.80	5.4	2860	18.37	2.9	3.0	74	79	79	0.50	0.65	0.78
NBS4K 1000 T 274 729 4040	7.5	10.0	50	380	16.90	5.1	2810	25.50	2.4	2.5	80	80	80	0.65	0.79	0.87
				400	16.90	5.3	2835	25.26	2.6	2.6	78	80	80	0.57	0.72	0.83
				415	17.30	5.3	2850	25.05	2.7	2.7	75	79	79	0.51	0.66	0.77

PERFORMANCE DATA 3 PHASE HT 220-230 V 60 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ			SF A
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100	SF A
NBS4K 1000 T 274 719 4040	7.5	10	60	220	29.0	5.9	3440	20.8	2.6	2.6	78	79	80	0.64	0.78	0.85	32.6
NBS4K 1000 T 274 719 4040	7.5	10	60	230	29.0	6.0	3460	20.7	2.8	2.8	76	79	80	0.58	0.72	0.81	32.0

PERFORMANCE DATA 3 PHASE HT 380V 60 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ			SF A
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100	SF A
NBS4K 1000 T 274 749 4040	7.5	10	60	380	17.8	6.5	3480	20.6	2.9	3.3	77	80	81	0.57	0.71	0.80	19.4

PERFORMANCE DATA 3 PHASE HT 460V 60 Hz

Type/Code	Rating		[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	Efficiency ƞ%			Power factor cos φ			SF A
Type/Code	[kW]	[HP]	[Hz]	Voltage [V]	I_N	LRC/I_N	rpm [Min^-1]	FLT [Nm]	LRT/FLT	BDT/FLT	50	75	100	50	75	100	SF A
NBS4K 1000 T 274 729 4040	7.5	10	60	460	14.5	5.1	3470	20.6	2.4	2.5	80	80	80	0.65	0.76	0.80	15.8

4" Corrosion Protection
- Wells with extremely high levels of chlorides and other elements in combination with high temperatures will aggressively attack and corrode nearly any type of metal, including stainless steel. Typical severe applications are geothermal wells and mine wells, and applications with low service times.
- Kit Number: 308 250 914
- Material specification: Cast iron 25
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PERFORMANCE DATA 1 PHASE 210-220-230 V 50 Hz

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