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Switch Disconnectors and
Fuses
7/2 Introduction
SENTRIC switch disconnectors
SENTRIC LD main control and
EMERGENCY-STOP switches from
16 A to 125 A
7/4 General data
7/5 Front mounting
7/7 Mounting in distribution boards
7/8 Molded-plastic enclosures
7/10 Accessories
SENTRIC K
switch disconnectors from 63 A to
1000 A
7/12 General data
7/14 Base mounting
7/15 Molded-plastic enclosures
7/16 Accessories
SENTRIC NP fuse switch disconnec-
tors
7/17 General data
7/20 For power distribution
7/21
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Switch Disconnectors and Fuses Introduction ■ Overview Type 3LD20 3LD21 3LD22 3LD25 3LD27 3LD28 SENTRIC LD main control and EMERGENCY-STOP switches from 16 A to 125 A Rated uninterrupted current I A 16 25 32 63 100 125 U at 35 °C ambient temperature Rated operating voltage U V 690 690 690 690 690 690 e AC-3 motor load switch operational switching of individual motors at 220 ... 240 V kW 3.0 4.0 5.5 11.0 18.5 22.0 7 at 380 ... 440 V kW 5.5 7.5 9.5 18.5 30.0 37.0 at 660/690 V kW 5.5 7.5 9.5 15.0 2
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Switch Disconnectors and Fuses Introduction Type 3NP 3K SENTRIC Rated uninterrupted current I A 160 ... 630 63 ... 1000 U at 35 °C ambient temperature Rated operating voltage UV690 690 e AC-21 at 400 V ✓ ✓ at 500 V ✓✓ 7 at 690 V ✓ ✓ AC-22 at 400 V ✓ ✓ at 500 V ✓✓ at 690 V ✓ ✓ AC-23 at 400 V ✓ ✓ at 500 V – ✓ at 690 V – ✓ Switch versions Front mounting – ✓ Base mounting ✓✓ Busbars •40 mm ✓ – •60 mm ✓✓ •185 mm – – Molded-plastic enclosure ✓ ✓ Switch accessories 4th pole (N conductor) – ✓ (leading s
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SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY STOP Switches from 16 A to 125 A General data ■ Technical specifications Standards DIN VDE 0660, IEC 60947 Switch Type 3LD2 0 3LD2 1 3LD2 2 3LD2 5 3LD2 7 3LD2 8 Number of contacts 3/4 3/4 3/4 3/4 3/4 3/4 Rated insulation voltage U V 690 690 690 690 690 690 i Rated operating voltage U AC V 690 690 690 690 690 690 e Rated frequency Hz 50 ... 60 50 ... 60 50 ... 60 50 ... 60 50 ... 60 50 ... 60 Rated impulse withstand voltage U kV 6
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SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY STOP Switches from 16 A to 125 A Front mounting ■ Area of application The SENTRIC 3LD2 switches are used for switching main control Main control and EMERGENCY-STOP switches are, in accor- and auxiliary circuits, but they are also implemented for switch- dance with IEC 60947-3/VDE 0660 Part 107 (EN 60947-3), man- ing three-phase induction motors and other loads for mainte- ually operated switch disconnectors and comply with the is
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SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY STOP Switches from 16 A to 125 A Front mounting Number and version Rated data DT Order No. PS* Weight of the contacts at 50 Hz ... 60 Hz per PU 380 V ... 440 V approx. Main Auxiliary P/ P/ I u contacts contacts AC-3 AC- 23A kW kW A kg Main control and EMERGENCY-STOP switch with rotary operating mechanism • IP65 degree of protection at the front 6– 7.59.525A 3LD2 103–3VK.. 1 unit 0.380 9.511.532 A 3LD2 203–3VK.. 1 unit 0.381 3L
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SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY STOP Switches from 16 A to 125 A Mounting in distribution boards Number and version Rated data DT Order No. PS* Weight of contacts at 50 Hz ... 60 Hz per PU 380 V ... 440 V approx. Main Auxiliary P/ I u contacts contacts AC-23A kW A kg ON/OFF and EMERGENCY-STOP switches with masking plate and se- lector switch • For mounting in a distribution board • For screw-fixing and snapping onto a 35 mm rail • Lockable in 0 position with
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SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY STOP Switches from 16 A to 125 A Molded-plastic enclosures Number and version Rated data DT Order No. PS* Weight of contacts at 50 Hz ... 60 Hz per PU 380 V ... 440 V approx. Main Auxiliary P/ I u contacts contacts AC-23A kW A kg Main control and EMERGENCY-STOP switches • With N or PE/ground terminal • Heavy-gauge threaded joints • Lockable in 0 position with max. 3 padlocks • IP 65 degree of protection at the front 3– 7.5 16 –
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SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY STOP Switches from 16 A to 125 A Molded-plastic enclosures Number and version of Rated data DT Order No. PS* Weight contacts at 50 Hz ... 60 Hz per PU 380 V ... 440 V approx. Main Auxiliary P/ P/ I u contacts contacts AC-3 AC-23A kW kW A kg Main control and EMERGENCY-STOP switches with rotary operating mechanism • metric screwed glands • With N or PE/ground terminals • IP65 degree of protection 6 – 7.5 9.5 25 A 3LD2 165–3VB.. 1
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SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY STOP Switches from 16 A to 125 A Accessories ■ Selection and ordering data DT 3LD2 0 PS* Weight DT 3LD2 1 and PS* Weight per PU 3LD2 2 per PU approx. approx. Order No. kg Order No. kg For front mounting 4th contact – } 3LD9 220–0B 1 unit 0.039 (N conductor) for front mounting leading switch-on, delayed switch-off N or PE/ground terminal } 3LD9 200–2B 1 unit 0.030 } 3LD9 220–2B 1 unit 0.036 3LD9 2.0-0B 3LD9 2.0-2B continuous Au
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SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY STOP Switches from 16 A to 125 A Accessories DT 3LD2 5 PS* Weight DT 3LD2 7 and PS* Weight per PU 3LD2 8 per PU approx. approx. Order No. Order No. For mounting on the front 4th contact } 3LD9 250–0B 1 unit 0.079 } 3LD9 280–0B 1 unit 0.101 (N conductor) for front mounting leading switch-on, delayed switch-off N or PE/ground terminal } 3LD9 250–2B 1 unit 0.072 } 3LD9 280–2B 1 unit 0.092 3LD9 2.0-0B 3LD9 2.0-2B continuous Auxili
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SENTRIC Switch Disconnectors SENTRIC K Switch Disconnectors from 63 A to 1000 A General data ■ Technical specifications Standards IEC 60947-1, IEC 60947-3, VDE 0660 Part 107 1) 1) Type 3KA50 3KA51 3KA52 3KA53 3KA55 3KA57 3KA58 3) Rated uninterrupted current I A 63 80 125 160 250 400 630 u 2) 3) Continuous thermal current I A 63 80 125 160 250 400 630 th Rated insulation voltage U V 690 690 1000 1000 1000 1000 1000 i Rated impulse withstand voltageU kV 6 6 8 8 8 8 8 imp Rated operating voltage U
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SENTRIC Switch Disconnectors SENTRIC K Switch Disconnectors from 63 A to 1000 A General data Standards IEC 60947-1, IEC 60947-3, VDE 0660 Part 107 1) 1) Type 3KA50 3KA51 3KA52 3KA53 3KA55 3KA57 3KA58 Mechanical endurance operations 15000 15000 15000 15000 12000 12000 12000 Required operating torque Nm 3 3 7.5 7.5 16 16 16 Degree of protection IP00/IP20 (from operator side, with busbar and terminal covers) Power loss of the switch at I W 7 12 22 22 33 72 170 th Main conductor connection Busbar sy
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SENTRIC Switch Disconnectors SENTRIC K Switch Disconnectors from 63 A to 1000 A Base mounting ■ Area of application SENTRIC KA switch disconnectors are implemented as main Main control switches and EMERGENCY-STOP switches are control switches and EMERGENCY-STOP switches for normal hand-operated switch disconnectors acc. to IEC 60947-3 and switching duty and isolation of main circuits and auxiliary cir- VDE 0660 Part 107 (EN 60947-3) and comply with the isolation cuits. Another area of applica
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SENTRIC Switch Disconnectors SENTRIC K Switch Disconnectors from 63 A to 1000 A Molded-plastic enclosures ■ Benefits ■ Area of application • Lockable with 3 padlocks Our master and EMERCENCY-STOP switches provide absolute safety, even during maintenance and repair work. All-round • Generous terminal compartment safety for people and machines. • IP65 degree of protection With their high degree of protection of IP65, they can even with- • Maintenance-free stand dust and water spray, providing un
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SENTRIC Switch Disconnectors SENTRIC K Switch Disconnectors from 63 A to 1000 A Accessories ■ Selection and ordering data DT 3KA50 30/ PS* Weight DT 3KA50 40/ PS* Weight 3KA51 30 per PU 3KA51 40/ per PU approx. 3KA52/ approx. 3KA53 Order No. kg Order No. kg 3KA52 Terminal cover } 3KX3 552–3DA01 1 set 0.077 } 3KX3 552–3DA01 1 set 0.077 (1 set = 6 units) 3KA53 for 3-pole devices } 3KX3 553–3DA01 1 set 0.147 3KA52 (1 set = 8 units) B 3KX3 552–3DB01 1 set 0.102 B 3KX3 552–3DB01 1 set 0.102 for 4-p
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SENTRIC NP Fuse Switch Disconnectors General data ■ Area of application ■ Design SENTRIC NP fuse switch disconnectors are switching devices The SENTRIC NP fuse switch disconnectors comprise a fuse for the occasional manual connection and disconnection of base and a removable fuse carrier with an inspection and mea- loads and distribution boards. They are designed to connect the suring function window. specified rated nominal current (including a specified overload), Lyre-shaped contacts, arc c
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SENTRIC NP Fuse Switch Disconnectors General data ■ Technical specifications Standards IEC 60947-1, IEC 60947-3, VDE 0660 Part 107 Type 3NP40 1 3NP40 7 3NP42 7 3NP43 7 3NP44 7 1) Rated uninterrupted current I A 160 160 250 400 630 u For fuse links acc. to DIN 43620 Size 00C/000 00 1 and 0 2 and 1 3 and 2 1) Continuous thermal current I A 160 160 250 400 630 th Rated operating voltage U e AC 50 Hz/60 Hz V 690 690 DC V 220 440 (3 conducting paths in series) (2 conducting paths in series) 4) 4) 4)
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SENTRIC NP Fuse Switch Disconnectors General data Standards IEC 60 947-1, IEC 60 947-3, VDE 0660 Part 107 Type 3NP40 1 3NP40 7 3NP42 7 3NP43 7 3NP44 7 Capacitor switching capacity at AC 400 V Capacitor power kvar 50 50 – – – Rated current I A 72 72 – – – n at AC 525 V Capacitor power kvar 50 50 – – – Rated current I A 55 55 – – – n 1) Permissible ambient temperature °C –25 ... +55 for operation, –50 ... +80 for storage Mechanical endurance Operations 2000 2000 1600 1000 1000 Degree of protection
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SENTRIC NP Fuse Switch Disconnectors For power distribution ■ Selection and ordering data Rated Conductor connections (on both sides) For fuse For isolat- DT Degree of protection IP00, PS* Weight 2 uninter- links to ing links ) without fuse links, per Connection For conductor 1) rupted DIN 43620 without isolating links, unit/ cross-section current with terminal screws set/ I meter u appr. 2 Amm Size Order No. kg For surface mounting and for installation up to 160 A for snapping onto standard m
