The D4N series of limit switches in plastic housing is the ideal switch for all standard mechanical position detection applications both for safety and non-safety applications.
Direct opening mechanism and approval by notified body
Adjustable roller lever, form lock
(metal lever, resin roller)
M20
D4N-412G
D4N-4A2G
D4N-4B2G
–
M12 connector
D4N-912G
D4N-9A2G
D4N-9B2G
–
Adjustable roller lever, form lock
(metal lever, rubber roller)
M20
D4N-412H
D4N-4A2H
D4N-4B2H
–
M12 connector
D4N-912H
D4N-9A2H
D4N-9B2H
–
Switches with MBB contacts
MBB (Make Before Break) contacts have an overlapping structure, so that before the normally closed (NC) contact opens the normally open (NO) contact closes.
500,000 operations min. for a resistive load of 3 A at 250 VAC
300,000 operations min. for a resistive load of 10 A at 250 VAC
Operating speed
Roller lever
1 mm/s to 0.5 m/s
Operating frequency
30 operations/minute max.
Minimum applicable load
Resistive load of 1 mA at 5 VDC (N-level reference value)
Protection against electric shock
Class II (double insulation)
Pollution degree (operating environment)
3 (EN60947-5-1)
Contact gap
Snap-action: 2×0.5 mm min
Slow-action: 2×2 mm min
Conditional short-circuit current
100 A (EN60947-5-1)
Rated open thermal current (Ith)
10 A (EN60947-5-1)
Ambient temperature
Operating
-30 to 70°C with no icing
Degree of protection
IP67 (EN60947-5-1)
1NO/1NC Contact (Snap-action)
If metal deposition between mating contacts occurs on the NC contact side, they can be pulled apart by the shearing force and tensile force generated when part B of the safety cam or plunger engages part A of the movable contact blade. When the safety cam or plunger is moved in the direction of the arrow, the Limit Switch releases.
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