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Power Couplers


Transmits Input Device ON/OFF Signals and Power. The Key to Effortless Wiring for Rotating and Moving Bodies.

Stationary Unit Transmission Specifications

Model B7AP-S1
Transmission method Unidirectional, time-division multiplex
Between Couplers Between B7AP-S1 and -M1: 8 ± 1.5 mm
Between Input Unit and Output Unit Between B7A Input and Output Units: 100 m max. *1
Transmission delay time Standard: 19.2 ms, Maximum: 31 ms
Minimum Coupler interfacing time 0.3 s *2
Minimum distance between Power Couplers mounted in
60 mm min.

*1. The value is for when a power supply is provided only for the B7AP-S1.
*2. Minimum Coupler interfacing time is the minimum time required for signal and power transmission between the
       Power Couplers.

Moving Unit Specifications

Model B7AP-M1
Power supply 12 VDC ± 10%, 38 mA

Note: Use the Moving Unit so that the total current consumption of all input devices is 38 mA max.


Model B7AP-S1 B7AP-M1
Power supply voltage (operating voltage
24 VDC ±10, ripple (p-p): 10% max ---
Current consumption 300 mA ---
Insulation resistance 100 MΩ min. (at 500 VDC) between each lead wire and external parts
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between each lead wire and external parts
Noise immunity Noise level: ± 1.5 kV, pulse width: 100 ns/1 μs
Ambient temperature Operating: - 10 to 55 ° C
Storage: - 25 to 65 ° C
(with no icing or condensation)
Ambient humidity Operating/Storage: 35% to 95% (with no condensation)
Vibration resistance (destruction) 10 to 55 Hz, 1.5-mm double amplitude each in X, Y, and Z directions
Shock resistance (destruction) 500 m/s2 each in X, Y, and Z directions
Degree of protection IEC IP67
Nut tightening strength 39 Nm
Connection method Pre-wired Models (Standard cable length: 2 m)
Cable tensile strength: 49 N
Weight (packed state) Approx. 300 g Approx. 230 g