MK3
Meet Essen deinki’s MK3 Series Miniature Double Break Micro Switches, specially designed for versatility. These switches come with a unique dual-circuit, single-pole, double-break setup. Their snap-action mechanism, controlled by spring-loaded pivoted contact-carrying arms, ensures lightning-fast contact changeovers. You get both 1 Normally Open (NO) and 1 Normally Closed (NC) contact for versatile control options. These switches are built to last, delivering exceptional mechanical and electrical durability. Plus, you have the option of silver or gold-plated solder terminals for enhanced performance. These switches adhere to the IEC 1058-1 standard, guaranteeing that they meet the highest industry quality and safety standards. Essen deinki’s MK3 Series is your dependable choice for precision electrical control applications that demand reliability and flexibility.
Characteristics
- 2 circuit, Single pole, double - break.
- Snap action through spring controlled pivoted contact carrying arms.
- Rapid changeover of contacts.
- 1 NO + 1 NC contacts.
- Long mechanical & electrical life.
- Silver or Gold plated solder terminals
- Conform to IEC 1058-1 standard.
Product
Description
MK3( )
- Actuating force : 284 gms. (max)
- Release force : 28 gms. (min.)
- Pretravel : 1.7 mm. (max.)
- Overtravel : Depress to case
- Movement differential : 0.94 mm. (max.)
- Free position (FP): 11.1 mm. (max.)
- Operating position (OP) : 9.4 ± 0.25 mm.
- Temperature range : -65°C to +125°C
- Salient features: Plain plunger actuator Four solder tags.
MK3( )L3
- Actuating force : 100 gms. (max.)
- Release force : 18 gms. (min.)
- Pretravel : 7.0 mm. (max.)
- Movement differential : 2.8 mm. (max.)
- Salient features: Auxiliary actuator which may be used with MK3 Switch. It is a plain lever actuator of 24 mm. length. Lever ratio 5:1
MK3( )R3
- Actuating force : 100 gms. (max.)
- Release force : 12 gms. (min.)
- Pretravel : 6.0 mm. (max.)
- Movement differential : 2.8 mm. (max.)
- Salient features: Auxiliary actuator which may be used with MK3 Switch. It is 26 mm. Long lever fitted with a free running nylon roller of 4.8 mm. diameter. Lever ratio 5.5:1
ELECTRICAL / MECHANICAL PARAMETERS
Contact resistance
Insulation resistance
Voltage proof
Terminals
Electrical life
Mechanical life
10 milliohms (max.)
1000 megaohms (min)Â
1 KV AC for one minuteÂ
Solder
50,000 operationsÂ
1 million operations
Electrical rating
VOLTAGE
125AC
250AC
125DC
250DC
250AC
125DC
250DC
RESISTIVE LOAD (AMPERES)
10
5
1.5(0.5)
0.5(0.25)
5
1.5(0.5)
0.5(0.25)
INDUCTIVE LOAD (AMPERES)
5
5
0.5(0.03)
0.25(0.02)
5
0.5(0.03)
0.25(0.02)
Current values have been assessed on the basis that each mechanism is used to switch only one load, either on it’s normally-open
or normally-closed contacts. When two circuits per mechanism are switched the same current values on AC may be used but on resistive and inductive DC loads the smaller values shown in brackets should be used.
Note : place ‘S’ for Silver plated and ‘G’ for Gold plated terminals in bracket ‘( )’ against ordering code of micro switches