China OEM 3 Poles Dc Contactor - JBC3(3TF51) AC contactor – Jiebang

Product Detail

Type and Signification ① Contactor Series Code ② Basic specification code: rated working current at 380V underAC-3 ③ Number and Combination Form ofAuxiliary Contacts ④ Derived code N denotes interlocking contactor ⑤ Z denotes DC operation Application Range JBC3 series AC contactors (hereinafter referred to as contactors) are suitable forAC 50HZ (60HZ), rated voltage to 660V, rated working current to 475A power line when rated voltage is 380V under AC-3, for long-distance contact and sectional circuit, for frequent start-up and disconnection of squirrel cage motor, and for appropriate heat. Overload relays form electromagnetic starters to protect possible overload circuits. JBC3 series reversible contactor is formed after adding mechanical interlocking mechanism, which can control the starting, stopping and reversing of motor. This series of contactors conform to GB1408.4 and JB/T7435 standards. Its shape size and installation size are the same as those of3TB and 3TF series contactors produced by Siemens. Normal working and installation conditions • The ambient air humidity is-50C} +400C, and the average value in 24 hours is not more than+350C. • Elevation: Installation site not exceeding 2000 m above sea level. • Atmospheric conditions: the relative humidity of air is not more than 50% when it is +400C. Higher relative humidity can be allowed at lower temperature and humidity. For example, at 200C, the appropriate humidity can be up to 90%. Special measures should be taken for the occasional condensation caused by temperature changes. • Pollution grade: The pollution grade of installation site is 3. • Installation Category: Installation Category of Contactors is Class III. • Installation conditions: The inclination between the installation surface and the vertical surface of the contactor is not more than 5 degrees. • Installation Site: Installation and use in places without significant shaking, shock or vibration. Main Technical Parameter

Type	Forelgn models	Agreed heating current 1th A	Rated worklng Currentle A					AC-3 Controllable Motor Maximum Power Ptkw
			AC-3			AC-4		AC-3 Controllable Motor Maximum Power Ptkw
			220v	380v	660v	380v	660v	220v	380v	660v
JBC3-9(Z)	3TB-40	20	9	9	7.2	3.3	1.4	2.2	4	4
JBC3-12(Z)	3TB-41	20	12	12	9.5	4.3	1.9	3	5.5	5.5
JBC3-16(Z)	3TB-42	30	16	16	13.5	7.7	3.5	4	7.5	7.5
JBC3-22(Z)	3TB-43	30	22	22	13.5	8.5	4	7.5	11	11
JBC3-32	3TB-44	45	32	32	18	12	7.5	8.5	15	15
JBC3-45	3TB-46	70	45	45	45	24	12	15	22	22
JBC3-63	3TF47	70	63	63	63	28	14	18.5	30	30
JBC3-75	3TF48	90	75	75	75	34	17	22	37	37
JBC3-85	3TF49	90	85	85	75	42	21	26	45	45
JBC3-110	3TF50	150	110	110	110	54	27	37	55	55
JBC3-140	3TF51	150	140	140	110	68	35	44	75	75
JBC3-170	3TF52	180	170	170	170	75	42	55	90	90
JBC3-205	3TF53	220	205	205	170	92	49	64	110	110
J BC3-250	3TF54	300	250	250	250	112	60	75	132	132
JBC3-300	3TF55	300	300	300	250	135	72	93	160	160
JBC3-400	3TF56	500	400	400	400	180	96	115	200	200
JBC3-475	3TF57	500	475	475	400	214	114	145	250	250

Shape size, installation size and flying arc distance

Type	Shape size			Installation dimensions）			Flying Arc Distance
Type	A	B	C	a	b	N-φd	10
JBC3-9, 12	46	79	106	35	60	2-φ4.8
JBC3-9/Z, 12/Z	46	79	112	35	60	2-φ4.8
JBC3-16, 22	46	89	116	35	75	2-φ4.8
JBC3-16/Z, 22/Z	46	89	148	35	75	2-φ4.8
JBC3-32	74	90	109	50	75	2-φ5.0
JBC3-45, 63	92	120	125	70	100	2-φ5.0	12
JBC3-75, 83	105	135	145	80	110	2-φ5.5	12
JBC3-110, 140	125	158	155	100	130	2-φ6.5	30
JBC3-170, 205	140	185	190	110	160	2-φ7.0	30
JBC3-250, 300	145	200	198	120	180	4-φ10.5	50
JBC3-400, 475	160	200	222	130	180	4-φ10.5	50

Connection terminal marking and installation Material characteristics ·Pure copper coil: low heat generation, longer service life, and the pull-in voltage is between 85% and 110%. ·Silver alloy contacts: 4 sets of silver alloy contacts for greater load carrying capacity and greater electrical conductivity. ·32 pieces of silicon steel core, the suction is smoother, the heat dissipation is stronger, and the machine is not easy to heat for a long time.

Product Tags

415V AC Contactors