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T4N-4187 safety limit switch

Forced open action device(NC contacts only), it can disconnect the contact when the contact has fusing and other failures.

Standardized gold-clad contacts provide high contact reliability, Can be used with both standard loads and microloads.

Strengthened top seal structure improves the sealing performance.

Built-in contact holder has fast-action type: 1NC/1NO; Slow-action: 1NC /1NO and 2NC.

Product List

Technical Parameters

Characteristics

Protection level*1IP66
Life*2ElectricalMore than 300,000 times (AC250V 10A, resistive load)
Electrical

More than 500,000 times (AC250V 3A, resistive load) *3

Operating speed1 ~ 500mm/s(T4N-4120)
Operating frequencyMax. 30 times/min
Contact resistance25 mΩ or less
Minimum working load *41mA resistive load below DC5V (N standard reference value)
Rated insulation voltage (Ui)300V
Electric shock proof protection gradeClass II (double insulated)
Pollution degree (environmental conditions)Pollution degree 3 (EN60947-5-1)
Withstand voltage
(EN60947-5-1)
Between homopolar terminals: 2.5kV
Between heteropolar terminals: 2.5kV
Between terminals and uncharged metal parts: 6kV
insulation resistanceAbove 100MΩ
Contact gapMinimum 2×0.5mm quick-action type,
Minimum 2×2mm slow-action type
VibrationMalfunction10 ~ 55Hz 0.75mm single amplitude
ImpactDuration1,000m/s2
Malfunction300m/s2
Ambient temperature-20 ~ +70℃ (No ice or dew)
Ambient humidityLess than 95% RH
WeightAbout 73g (T4N-4120)
About 82g (T4N-4120 with gland)


Note1:The above values are initial values.

Note2:Once the contact is connected to a standard load, it can not be used to connect a smaller load. If so, the contact may result in rough surface, thus losing contact reliability.

①The protection level is gotten based on test method of (EN60947-5-1). Please make sure its sealing under actual environmental conditions before use. The switch box has dust and oil resistance structure, but it should be used in places without dust, oil and chemicals.

Otherwise it may lead to premature wear, damage or malfunction.

②The durability is for ambient temperature of 5℃ ~ 35℃ and humidity of 40% to 70% RH.

③For additional details, please contact us.

④When the ambient temperature is above 35℃ , more than 2 circuits 3A 250VAC loads are prohibited.

⑤The values will vary with different switching frequency, environmental conditions, reliability level and other factors. Please confirm on the actual load in advance.

The mechanical life of deadman lever type is more than 10,000,000 times.


Model Designations

ItemCodeDescription
① Conduit / connector size1Pg13.5 (1 conduit type)
2G1/2 (1 conduit type)
4M20 (1 conduit type)
5Pg13.5 (2 conduits type)
6G1/2 (2 conduits type)
8M20 (2 conduits type)
② Built-in switch11NC/1NO (quick-action type)
22NC (quick-action type)
A1NC/1NO (slow-action type)
B2NC (slow-action type)
③Head and driving rod20Roller lever (resin lever, resin ball)
22Roller lever (metal lever, resin ball)
25Roller lever (metal lever, metal resin ball)
2GAdjustable roller lever, Form Lock (metal lever, resin ball)
2HAdjustable roller lever, Form Lock (metal lever, rubber ball)
2MAdjustable roller lever, Form Lock (metal lever, metal resin ball)
31Top plunger type
32Top plunger ball type
62Unilateral cantilever ball type (horizontal)
72Unilateral cantilever ball type (vertical)
80Whisker type
87Plastic stick type


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