Leach develops high-performance relays and switching solutions for aerospace, defence, transportation, and industrial applications. The product range supports electrical systems that demand long-term reliability and dependable switching performance.
Engineers rely on these products where vibration, temperature changes, and harsh environments challenge conventional components. Proven relay technology helps improve safety while ensuring stable operation over extended lifecycles.
Long industry experience and strict quality standards make these switching solutions suitable for the most demanding electrical systems.

AC phase monitoring relay, 90–150 Vrms, 2PDT/3PDT
AC phase monitoring relay, 90–150 Vrms, 2PDT/3PDT

Voltage sensing relay, 28 V DC, 2PDT, 2 A, max 80 g
Voltage sensing relay, 28 V DC, 2PDT, 2 A, max 80 g

Power contactor 275 A, 3PDT + aux, 28 V DC and 400 Hz
Power contactor 275 A, 3PDT + aux, 28 V DC and 400 Hz

MIL relay, 2PDT, 2 A, 10 g, 20.6 x 10.4 x 10.4 mm
MIL relay, 2PDT, 2 A, 10 g, 20.6 x 10.4 x 10.4 mm

Power contactor 275 A, 3PST + aux, 28 V DC coil
Power contactor 275 A, 3PST + aux, 28 V DC coil

MIL relay, 2PDT, 2 A, 10 g, 20.6 x 12.5 x 10.4 mm
MIL relay, 2PDT, 2 A, 10 g, 20.6 x 12.5 x 10.4 mm

Power contactor 250 A, 3PDT + aux, 28 V DC and 400 Hz
Power contactor 250 A, 3PDT + aux, 28 V DC and 400 Hz

Latching power contactor 275 A, 3PDT, 28 V DC and 400 Hz
Latching power contactor 275 A, 3PDT, 28 V DC and 400 Hz

MIL relay, 4PDT, 2 A, 34 g, 25.65 x 15.5 x 25.4 mm
MIL relay, 4PDT, 2 A, 34 g, 25.65 x 15.5 x 25.4 mm

MIL relay, 2PDT, 5 A, 16 g, 20.6 x 16.3 x 10.4 mm
MIL relay, 2PDT, 5 A, 16 g, 20.6 x 16.3 x 10.4 mm

MIL relay, 2PDT, 5 A, 15 g, 20.6 x 19.3 x 10.4 mm
MIL relay, 2PDT, 5 A, 15 g, 20.6 x 19.3 x 10.4 mm


Latching MIL relay, 1PDT, 10 A or low level, 16 g
Latching MIL relay, 1PDT, 10 A or low level, 16 g


MIL relay, 4PDT, 5 A, 27 g, 20.6 x 16.3 x 20.6 mm
MIL relay, 4PDT, 5 A, 27 g, 20.6 x 16.3 x 20.6 mm


MIL relay, 3PDT, 10 A, 28 g, 20.6 x 16.3 x 20.6 mm
MIL relay, 3PDT, 10 A, 28 g, 20.6 x 16.3 x 20.6 mm




Power contactor 145 A, 3PDT + aux, 28 V DC and 400 Hz
Power contactor 145 A, 3PDT + aux, 28 V DC and 400 Hz

Power contactor 180 A, 3PDT + aux, 28 V DC and 400 Hz
Power contactor 180 A, 3PDT + aux, 28 V DC and 400 Hz
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