JM-3M High Power Hermetical Magnetism Keep Relay(745) series

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JM-3M High Power Hermetical Magnetism Keep Relay(745) using in the hard environmental condition

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Brief introduction
specification
how to order
Environmental Condition
Main Technical Data

Product solid picture

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Brief introduction

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JM-3M High Power Hermetical Magnetism Keep Relay(745) using in the hard environmental condition

specification

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Contact form		3Z(main: two groups transform, Auxiliary:one group transform)	Operate time (ms)	≤50
leak rate (Pa.cm3/s)		≤1×100	Release time (ms)	≤150
Contact Resistance (Ω)		Main:≤0.01 Auxiliary: ≤0.05	Contact load and life	Main:40A,，27VDC(Resistive) Auxiliary: 1A,，27VDC(Resistive) 1×104 Operations
Insulation resistance (MΩ)	Between contacts	≥100
	Between contact sets
	Between coils
	others
Dielectric strength Vr.m.s. (50Hz)	Between open contacts	500
	Between contact sets		dimensions（mm）	56.5×38×52.5
	Between coils		Coil power (W)	About 4.9
	others		weight（g）	≤350

how to order

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JM-3M / 027

(1) (2)

(1) type

(2) spec NO.

Environmental Condition

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item		H
Ambient Temperature Range (℃)		-55～85
relative humidity		95%(at 40℃)
low pressure (kPa)		0.67～0.27
vibration resistance	(Hz)	10～2000
	(m/s2)	147
Shock Resistance(m/s2)		735 duration8～12ms
acceleration(m/s2)		490

Main Technical Data

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No.	Coil voltage		25℃				Temperature range
No.	Rated	max	Coil resistance (Ω)±10%	Working voltage (Max)	sustaining voltage	Release voltage (Min)	Working voltage (Max)	sustaining voltage	Release voltage (Min)
012	12	16	30	7.7	------	------	10.2	-----	------
027(028)	27(28)	32	160	18	-------	--------	24	--------	-------

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