250A Electrical Emergency Stop Metal Push Pull Button Lockout Control Switch

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Description

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Product Description
AED250A 250A 80V Push Button for Battery Powered Vehicles 1NC AOKAI Emergency Switch
The AED250A range of switches have been designed to provide a rapid means of disconnecting batteries or other power supplies in the event of serious electrical faults. Whilst the switches are primarily intended for use with battery powered vehicles they are also suitable for use with static power systems. All types are capable of safely rupturing full load battery currents in the event of an emergency.
The AED250A is a manually operated device with an over-centre spring mechanism which provides a snap action for both opening and closing of the main contacts. The AED250A is easy to install (see drilling details) and is secured with supplied M5 posidrive mounting screws. Lockable versions feature a key which is necessary for the knob to be moved from the “Off” position to the “On” position. Once in the “On” position, the key can be removed. Thereafter, the knob may be depressed to the “Off” position where it will automatically lock and remain locked until the key is used again to unlock it. The AED250A is fully serviceable with genuine replacement parts available.
Precautions:
When fitted with magnetic blowouts the polarity marked on the contact housing must be observed when connecting the main terminals. Ensure that the switches are installed in a position where heavy arcs emanating from the switch cannot damage or electrically jump across to adjacent parts. The switch is to be used to rupture current in an emergency or as a no-load isolator.
Do not use as a regular On-Load Switching Device.

Brand: AK/AOKAI
Name: Emergency Switch
Model: AED250A / ED250
Rated Voltage: =80V
Rated Current: 250A
Type: Push Button
Dimension: 64.5*63*132 (mm)
Weight: About 450g

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SPECIFICATION

Rated Voltage	=80V
Contact Circuit Rated Load Current(A)	250A
Typical Voltage Drop Across Contacts per 100A	=60mV
Insulation Resistance	=50MO
Electric Strength to Resist	50Hz/60Hz 1000VAC/1min
Overload Current	=7Ie, =1s
Electric Life	=10000 times
Mechanical Life	50,000 times
Work Specification	Continuous
Contact Form	1NC
Contact Material	AgCdO/AgCuO
Technical Specification	GB14048.4-2010

USAGE ENVIRONMENT

Altitude	less than 2Km	Ambient temperature	-25~+55?
International protection	IP50	Installation type	III
Way to install	Any	Vibration	2.5g(5~50)Hz
Impact	50g,11ms(Half-sine wave)

SCHEMATIC DIAGRAM

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INSTALLATION DIAGRAM

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Aokai Electric is your best source for the high quality 250a electrical emergency stop metal push pull button lockout control switch with CE certification. We have been one of the largest such manufacturers and suppliers in China since our establishment in 2008. Welcome to contact our factory for the products.

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