Datasheet
Ledex
®
 Solenoids  www.ledex.com  1.937.454.2345  Fax: 1.937.898.8624
LINEAR Open Frame
All products are RoHS Compliant
All specifications subject to change without notice. Force values for reference only.
Ledex
® 
Magnetic Latching Box Frame Size B17M-L
Specifications
Operation Pull
Dielectric Strength  500 VRMS for one second
Unlatch Voltage  See schematic and coil data below
Magnet Hold Force*  2.5 N
Coil Insulation  Class “ B”: 130°C max.
Coil Termination  254 mm PVC lead wires
Spring Force  0.175 N/mm; 0.67 N latched position
Plunger Pole Face  Flat face (other options available)
Plunger Weight  2.46 g
Total Weight  19.85 g
* In no power, latched position, with return spring
     Unlatch 
Maximum Duty Cycle      Voltage  50%  25%  10%
Recommended Max ON Time (sec)  1  1  1  1
Watts (@ 20°C)      1.6  3.2  6.4  16
Ampere Turns (@ 20°C)     292  414  584  923
Coil Data     
  Resistance Ref # Unlatch VDC VDC VDC 
Part Number  (@20°C)  Turns
VDC  (Nom) (Nom) (Nom)
B17M-L-158-B-3 5.40 556 3 4 6 9 
B17M-L-155-B-3 21.93 1112 6  8.5 12 19 
B17M-L-156-B-3 50.20 1540 9  12 18 28.3 
B17M-L-154-B-3 88.95 2208 12 17 24 38 
B17M-L-153-B-3 337.00 3687 24 34 48 76 
B17M-L-152-B-3 1465.00 9177 48 68 96 153
Part Number: B17M - L - X XX - B- 3
Coil Selection 
(from performance chart below)
Typical Force @ 20°C (Net, with Spring)
Performance
NOTES:
1.  All data is typical.
2.  Force testing is done with the solenoid in the 
horizontal position.
3.  All data reflects operation with no heatsink.
How to Order
Select the part number from the table provided. (For 
example, to order a 25% duty cycle unit rated at 48 VDC, 
specify B17M-L-153-B-3.
Please see www.ledex.com for our list of stock products 
available through our North American distributors.
Pole Configuration 
1 Flat Face
Coil Polarity
Latch:  A+ B- 
Unlatch: A- B+ 
A
B
(Black)
(Red)
+
–
VDC
 Battery
Powered
 High
Speed
 Long
Life
 Magnetic
Latching
 Miniature
Size
 Quiet
Performance
+
–
VDC
 Battery
Powered
 High
Speed
 Long
Life
 Magnetic
Latching
 Miniature
Size
 Quiet
Performance
+
–
VDC
 Battery
Powered
 High
Speed
 Long
Life
 Magnetic
Latching
 Miniature
Size
 Quiet
Performance
+
–
VDC
 Battery
Powered
 High
Speed
 Long
Life
 Magnetic
Latching
 Miniature
Size
 Quiet
Performance
2.8
4.2
5.6
7.0
Stroke - mm
Force - N
0
1.4
0.5 1.0 1.5
2.0 2.5 3.0 4.03.5 4.5
0
■ 10% Duty Cycle 16W
■ 25% Duty Cycle 6.4W
■ 50% Duty Cycle 3.2W


