Summary of the content on the page No. 1
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
Summary of the content on the page No. 2
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
Summary of the content on the page No. 3
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
Summary of the content on the page No. 4
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
Summary of the content on the page No. 5
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
Summary of the content on the page No. 6
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
Summary of the content on the page No. 7
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
Summary of the content on the page No. 8
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 –
Summary of the content on the page No. 9
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
Summary of the content on the page No. 10
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
Summary of the content on the page No. 11
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
Summary of the content on the page No. 12
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
Summary of the content on the page No. 13
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
Summary of the content on the page No. 14
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
Summary of the content on the page No. 15
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
Summary of the content on the page No. 16
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
Summary of the content on the page No. 17
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
Summary of the content on the page No. 18
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)
Summary of the content on the page No. 19
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
Summary of the content on the page No. 20
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
