Datasheet

2
FTR-K1 SERIES
* Minimum switching loads mentioned above are reference values. Please perform the conrmation test with actual
load before production since reference values may vary according to switching frequencies, environmental conditions
and expected reliability levels.
FTR-B4 SERIES
n SPECIFICATION
Item Standard type Latching type
FTR-B4 ( ) A FTR-B4 ( ) B
Contact Data Conguration 2 form C
Construction Bifurcated contacts (cross-bar)
Material
Gold overlay silver nickel / Gold overlay silver
palladium
Resistance (Initial) Max. 100 mΩ at 1 A, 6 VDC
Contact rating (resistive) 30VDC, 1A / 125VAC, 0.3A
Max. carrying current 2A
Max. switching voltage 250 VAC / 220VDC
Max. switching power 62.5VA / 30W
Min. switching load * 0.01mA, 10mVDC
Life Mechanical Min. 50 x 10
6
operations Min. 20 x 10
6
operations
Electrical
DC load Min. 100 x 10
3
operations at 1A, 30VDC (at 0.5 Hz)
AC load Min. 100 x 10
3
operations at 0.3A, 125VAC (at 0.5 Hz)
Coil Data Rated power 140mW - 230mW 100mW - 130mW
Operate power 80mW - 130mW 57mW - 68mW
Operating temperature range -40 °C to +85 °C (no frost)
Timing Data Operate (at nominal voltage, no bounce) Max. 3 ms Max. 3 ms (set)
Release (at nominal voltage, no bounce) Max. 3 ms Max. 3 ms (reset)
Insulation Resistance (initial) Min. 1,000MΩ at 500VDC
Dielectric strength
Open contacts 1,000VAC (50/60Hz) 1min
Contacts to coil 1,500VAC (50/60Hz) 1min
Adjacent contacts 1,000VAC (50/60Hz) 1min.
Surge strength Coil to contacts 2,500V, 2 x 10µs standard wave
Clearance
Adjacent contacts 1.0 mm
Open contacts 0.28 mm
Coil and contacts 1.0 mm
Creepage
Adjacent contacts 1.0 mm
Open contacts 0.28 mm
Coil and contacts 1.60 mm
Other
Vibration resistance
Misoperation 10 to 55 Hz at double amplitude of 3 mm
Endurance 10 to 55 Hz at double amplitude of 5 mm
Shock
Misoperation 750m/s²
Endurance 1,000m/s²
Weight Approximately 1 g