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SF3

Matsushita
Part Number SF3
Manufacturer Matsushita
Description POLARISED / MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation
Published May 18, 2005
Detailed Description SF POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation π 53.3±0.3 2.098±.012 25.0 .984...
Datasheet PDF File SF3 PDF File

SF3
SF3

Overview
SF POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation π 53.
3±0.
3 2.
098±.
012 25.
0 .
984 16.
5±0.
3 .
650±.
012 (SF3 pending) (SF3 pending) (SF3 pending) SF-RELAYS enables to plan a circuit to detect welding or go back to the beginning condition.
• Separated chamber structure (2 Form A 2 Form B, 3 Form A 1 Form B, 4 Form A 4 Form B) N.
O.
and N.
C.
side contacts are put in each own space surrounded with a card and a body-separater.
That prevents short circuit between contacts, which is caused by their springs welding or damaged.
• UL/CSA, TÜV, SEV approved (UL/CSA, SEV of SF3 pending) FEATURES • Forced operation contacts (2 Form A 2 Form B, 3 Form A 1 Form B) N.
O.
and N.
C.
side contacts are connected through a card so that one interacts with the other in movement.
In case of a contact welding, the other keeps a min.
0.
5mm .
020inch contact gap.
• Independent operation contacts (4 Form A 4 Form B) Each pair of contacts is free from the main armature and is independent from each other.
So if a N.
O.
pair of contacts are welded, the other 3 N.
O.
contacts are not effected (operate properly) That 53.
3±0.
3 2.
098±.
012 25.
0 .
984 16.
5±0.
3 .
650±.
012 53.
3±0.
3 2.
098±.
012 33±0.
3 1.
299±.
012 16.
5±0.
3 .
650±.
012 mm inch SPECIFICATIONS Contact Type Arrangement Initial contact resistance, max.
(By voltage drop 6 V DC 1 A) Contact material Nominal switching capacity Rating Max.
switching power (resistive) Max.
switching voltage Max.
carrying current Mechanical (at 180 Expected cpm) (resistive) life (min.
operations) Electrical (at 20 cpm) SF2 SF3 SF4 2 Form A 3 Form A 4 Form A 2 Form B 1 Form B 4 Form B 30 mΩ Gold-flashed silver alloy 6 A 250 V AC, 6 A 30 V DC 1,500 VA, 180 W 30 V DC, 440 V AC 6 A DC, AC 107 3×104*1 105 Characteristics (at 25°C 77°F, 50% Relative humidity) Max.
operating speed Initial insulation resistance*2 Between contact sets Initial breakBetween open down voltage*3 contacts Between contact and coil Operate time*4 (at nominal voltag...


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