BK Series

BK Series Aviation & Military Micro Switch

1. Small size, light weight, large load capacity;
2. With instantaneous action function, the action is sensitive;
3. Automatic reset;
4. Electric life is 4000~80 000 cycles.

Standard: GJB150-86 Military Equipment Environmental Test Method (Part) GJB809-90 General Specification for Micro Switch (Part) GJB809A-97 General Technical Specification for Micro Switch (Part) BK1-2, 2-1 Special Technical Conditions for Micro Switch ( Internal) BK1-2A micro switch single technical specifications (internal) BK1-5 micro switch technical specifications (internal) BK2-3 micro switch technical specifications (internal) BK2-4 micro switch special technical specifications (internal)

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BK Series Micro Switch Specifications

BK1-2、BK2-1 BK1-2A
Electrical Load Resistance -55℃~85℃ 27VDC、6A 27 (1±10%) VDC、1A
-55℃~130℃ 27VDC、2A
Electrical Load Inductive, τ≤0.015s -55℃~85℃ 27VDC、4A
-55℃~130℃ 27VDC、2A
Pre-travel PT(mm) ≥0.5
Overtravel OT(mm) ≥0.5
Release Travel RT(mm) ≤0.4
Operating Force OF(N) ≤5.88
Releasing Force RF(N) ≥1.96
Operating Temp.(℃) See ‘electric load’ -55~130
Weight (g) ≤10 ≤10
Electric Life (cycles) 10 000 4 000
Insulation Resistance, normal (ΜΩ) ≥100 ≥1 000
Insulation Resistance, damp heat (ΜΩ) ≥1 ≥10
Dielectric Withstand Voltage (VAC) 500 1000
Salt Spray (h) 48 48

 

BK Series Micro Switch Specifications

BK1-5 BK2-3 BK2-4
Electrical Load Resistance 27VDC、4A
Electrical Load Inductive, τ≤0.015s 27VDC、0.5A 27VDC、2A  (27±1) VDC、 (0.03~1) A, τ≤0.01s
Pre-travel PT(mm) ≤1.2 ≤1.6 0.65~1.2
Overtravel OT(mm) ≥1.02 ≥0.8 ≥0.8
Release Travel RT(mm) 0.15~0.41 ≤0.4 ≤0.4
Operating Force OF(N) ≤2.22 ≤5.88 ≤11.76
Releasing Force RF(N) ≥0.56 ≥1.96 ≥1.96
Operating Temp.(℃) -55℃~90℃ (130℃ in short time) -55℃~155℃ (6 minutes to reach 180°C, and keep the product above 100°C for no more than 192 hours) -55℃~200℃

(300℃ in short time)

Weight (g) ≤10
Electric Life (cycles) 80 000 5 000 15 000
Insulation Resistance, normal (ΜΩ) ≥100 ≥50
Insulation Resistance, damp heat (ΜΩ) ≥2
Dielectric Withstand Voltage (normal) VAC 500 1000
Salt Spray (h) 96 48 48
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