Cut Sheet

V7-T3-152 Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—July 2015 www.eaton.com
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3.7
Control Relays and Timers
Machine Tool Relays
Contact Arrangements—BF and BFD Relays
Note: NO = Normally Open NC = Normally Closed
Dimensions
Approximate Dimensions in Inches (mm)
BF Relay with Permanent
Magnet Latch and Solid-
State Timer
BFD Relay with Solid-State
Timer
BF and BFD Relay Dimensions
2 Poles 3 Poles 4 Poles
6 Poles
Rear
Front
Rear
Center
12 Poles
Rear
Center
Front
Front
8 Poles
Rear
Front
10 Poles
A
B
C
3.13
(79.5)
1.97
(50)
D
E
3.13
(79.5)
1.69
(42.9)
Number
of Poles
A
BF Only
B
BF w/Latch
C
BF w/Timer
D
BFD Only
E
BFD w/Timer
4 3.22 (81.8) 6.22 (158.0) 5.88 (149.4) 4.03 (102.4) 7.06 (179.3)
8 4.19 (106.4) 7.19 (182.6) 6.88 (174.8) 4.97 (126.2) 8.00 (203.2)
12 4.81 (122.2) 7.81 (198.4) 7.50 (190.5) 5.63 (143.0) 8.66 (220.0)
Enclosures—NEMA 1 for BF, BFD, AR and ARD
NEMA 1 for BF, BFD, AR and ARD Dimensions
Poles
Catalog
Number
A
NEMA 1
Relays without Attachments
All BF, AR, ARD 5.34 (135.6)
4 – 8 BFD 5.34 (135.6)
10, 12 BFD 7.97 (202.4)
Relays with Attachments
All BF, AR, ARD 7.97 (202.4)
5.66
(143.8)
3.38 (85.9)
2.83
(71.9)
1.72
(43.7)
0.25 (6.4) Dia.
Mtg. Holes (3)
0.19 (4.8)
A
1.69 (42.9)
0.38 x 0.5
(9.7 x 12.7)
Conduit
(2 Top, 2 Bottom)
6.59
(167.4)
4.5
(114.3)
0.63
(16)
1.05
(26.7)
KO KO KO
KO KO KO
KO
KO
1.72
(43.7)