BF Specifications

Durakool Relays & Contactors	T&C Industrial Controls
SERIES BF (Open), BB (Closed), 30 Amps
DESCRIPTION
Durakool 30 Amp general purpose contactors are available in 1-, 2- and 3-pole configurations to suit a variety of design needs.	The BF (normally open) and the BB (normally closed) both feature long-life contacts which provide low, stable contact resistance. Screw terminals are included for both load and control connections. The top wiring style of the load terminals allows efficient use of available panel space.

PICTURES & DIMENSIONS

SPECIFICATIONS

Maximum Time Norm. Open: Operate 70 ms, Release 90 ms

Maximum Time Norm. Closed: Operate 150 ms, Release 200 ms

Contact Bounce, Release: None

Recommended DC Load Polarity: Center Tube Connector Negative

Load Connectors: #8-32 Wire Bilding Screw, Max #8 AWG Cu.

Coil Terminals: #6-32 Wire Binding Screw, Max #12 AWG Cu.

Breakdown Voltage, Min. Across Contacts: 5000 VRMS

ELECTRICAL RATINGS

Volts

GENERAL PURPOSE

0.7/0.8 UL Power Factor

120 208 240 277 480 600

DC

1-48 120 240

Tungsten

Lamp / 60Hz

120

AC MOTOR LOAD

1 phase 3 phase

120 240 240

Series Contacts 60Hz Amps DC Amps Amps Kw Hp Hp Hp

BF N.O. 30 30 30 30 30 30 30 25 15 30 3.6 2.0 3.0 5.0

BB N.C. 30 22 20 18 10 8 30 20 10 20 2.4 1.5 2.0 3.0

TYPICAL COIL DATA

NORMALLY OPEN NORMALLY CLOSED

Contacts Volts DC Ohms Watts Amps Part# DC Ohms Watts Amps Part#

1 Pole N.O. 24 40 2.80 0.233 BF-7031 40 2.0 0.189 BB-7001

120 902 3.69 0.057 BF-7032 902 2.5 0.046 BB-7002

208 3100 3.46 0.030 BF-7033 3100 2.5 0.026 BB-7003

240 3700 3.14 0.025 BF-7034 3700 2.1 0.021 BB-7004

277 5410 3.42 0.022 BF-7035 5410 2.5 0.017 BB-7005

480 15000 3.49 0.013 BF-7036 15000 2.7 0.010 BB-7006

12 (DC) 57 2.50 0.210 BF-7038 57 2.5 0.209 BB-7027

24 (DC) 230 2.50 0.104 BF-7046 230 2.35 0.098 BB-7007

2 Pole N.O. 24 15 5.10 0.529 BF2-7026 15 4.0 0.431 BB2-2001

120 350 7.10 0.130 BF2-7027 350 5.6 0.108 BB2-2020

208 960 7.00 0.075 BF2-7028 960 5.5 0.062 BB2-2002

240 1520 5.70 0.055 BF2-7029 1520 4.3 0.046 BB2-2032

277 2300 5.70 0.045 BF2-7030 2300 4.5 0.037 BB2-2024

480 5600 5.80 0.029 BF2-7031 5600 4.6 0.023 BB2-2003

12 (DC) 24 6.00 0.500 BF2-7041 24 6.2 0.513 BB2-2018

24 (DC) 90 6.40 0.266 BF2-7032 90 6.0 0.250 BB2-2004

3 Pole N.O. 24 5 11.10 1.270 BF3-7023 5 9.2 1.070 BB3-2008

120 135 9.20 0.220 BF3-7024 135 7.7 0.184 BB3-2002

208 480 8.70 0.111 BF3-7025 480 7.2 0.094 BB3-2009

240 520 9.20 0.109 BF3-7026 520 7.6 0.093 BB3-2010

277 830 8.10 0.081 BF3-7027 830 6.7 0.067 BB3-2011

480 2100 9.40 0.055 BF3-7028 2100 8.2 0.044 BB3-2012

12 (DC) 12.8 11.20 0.938 BF3-7037 12.8 10.6 0.883 BB3-2013

24 (DC) 51 11.30 0.470 BF3-7038 51 11.1 0.460 BB3-2014

SPECIFICATIONS
Maximum Time Norm. Open:	Operate 70 ms, Release 90 ms
Maximum Time Norm. Closed:	Operate 150 ms, Release 200 ms
Contact Bounce, Release:	None
Recommended DC Load Polarity:	Center Tube Connector Negative
Load Connectors:	#8-32 Wire Bilding Screw, Max #8 AWG Cu.
Coil Terminals:	#6-32 Wire Binding Screw, Max #12 AWG Cu.
Breakdown Voltage, Min. Across Contacts:	5000 VRMS

		NORMALLY OPEN				NORMALLY CLOSED
Contacts	Volts	DC Ohms	Watts	Amps	Part#	DC Ohms	Watts	Amps	Part#
1 Pole N.O.	24	40	2.80	0.233	BF-7031	40	2.0	0.189	BB-7001
	120	902	3.69	0.057	BF-7032	902	2.5	0.046	BB-7002
	208	3100	3.46	0.030	BF-7033	3100	2.5	0.026	BB-7003
	240	3700	3.14	0.025	BF-7034	3700	2.1	0.021	BB-7004
	277	5410	3.42	0.022	BF-7035	5410	2.5	0.017	BB-7005
	480	15000	3.49	0.013	BF-7036	15000	2.7	0.010	BB-7006
	12 (DC)	57	2.50	0.210	BF-7038	57	2.5	0.209	BB-7027
	24 (DC)	230	2.50	0.104	BF-7046	230	2.35	0.098	BB-7007
2 Pole N.O.	24	15	5.10	0.529	BF2-7026	15	4.0	0.431	BB2-2001
	120	350	7.10	0.130	BF2-7027	350	5.6	0.108	BB2-2020
	208	960	7.00	0.075	BF2-7028	960	5.5	0.062	BB2-2002
	240	1520	5.70	0.055	BF2-7029	1520	4.3	0.046	BB2-2032
	277	2300	5.70	0.045	BF2-7030	2300	4.5	0.037	BB2-2024
	480	5600	5.80	0.029	BF2-7031	5600	4.6	0.023	BB2-2003
	12 (DC)	24	6.00	0.500	BF2-7041	24	6.2	0.513	BB2-2018
	24 (DC)	90	6.40	0.266	BF2-7032	90	6.0	0.250	BB2-2004
3 Pole N.O.	24	5	11.10	1.270	BF3-7023	5	9.2	1.070	BB3-2008
	120	135	9.20	0.220	BF3-7024	135	7.7	0.184	BB3-2002
	208	480	8.70	0.111	BF3-7025	480	7.2	0.094	BB3-2009
	240	520	9.20	0.109	BF3-7026	520	7.6	0.093	BB3-2010
	277	830	8.10	0.081	BF3-7027	830	6.7	0.067	BB3-2011
	480	2100	9.40	0.055	BF3-7028	2100	8.2	0.044	BB3-2012
	12 (DC)	12.8	11.20	0.938	BF3-7037	12.8	10.6	0.883	BB3-2013
	24 (DC)	51	11.30	0.470	BF3-7038	51	11.1	0.460	BB3-2014