3RT14 Contactors with 3 Main Contacts
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1 3RT14 Contactors with 3 Main Contacts for Switching Resistive Loads Contactor Size 3RT14 46 Mechanical endurance Oper. 10 million Electrical endurance Oper. 0.5 million C-1 utilization category at I e Rated insulation voltage U i (pollution degree 3) V 1000 Permissible ambient temperature in operation when stored to to +80 Degree of protection acc. to IEC and DIN IP 20 (terminal compartment IP 00), coil system IP 40 Coil voltage tolerance C/DC 0.8 to 1.1 x U s Power consumption of the coils (with coil in cold state and 1.0 x U s ) Standard design For US and Canada C operation Hz 50 50/ closing closed DC operation closing = closed W 15 Operating times at 0.8 to 1.1 x U s 1) Break time = opening time + arcing time C operation closing time opening time 17 to to DC operation closing time opening time V V / / / / to to 20 rcing time 10 to 15 Operating times at 1.0 x U s 1) C operation DC operation closing time opening time closing time opening time 18 to to to to 20 Shock resistance Rectangular pulse C and DC operation g/ 6.8/5 and 4/10 Sine pulse C and DC operation g/ 10.6/5 and 6.2/10 Short-circuit protection of contactors without overload relays Main circuit Fuse links, utilization category gl/gg NH 3N of coord. "1" 2 ) 0 Fuse links, utilization category gr SITOR 3NE of coord. "2" 2 ) 0 Control circuit (short-circuit current I k 1 k) Fuse links, utilization category gl/gg DIZED 5SB 10 NEOZED 5SE 10 Miniature circuit-breaker with C-characteristic 10 Operating frequency Operating frequency z in operating per hour C operation DC operation Contactors without overload relays No-load operating 1/h frequency Rated operation for C-1 1/h 0 0 for C-3 1/h Dependence of the operating frequency z on the rated operational current and the rated operational voltage: I z = z --- e 400V /h I U 1) The opening times of the NO contacts and the closing times of the NC contacts increase if the contactor coils are protected against voltage peaks (varistor +2 to 5, diode assemblies 2 to 6 times). 2) ccording to excerpt from IEC (VDE 0660 Part 102): of coordination "1": Destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced if necessary. of coordination "2": No damage can be tolerated to the overload relay, but contact welding on the contactor is permitted if the contacts can be easily separated. 3/74 Siemens NS K 2000
2 3RT14 Contactors with 3 Main Contacts for Switching Resistive Loads Conductor cross-sections Contactor Size 3RT14 46 Screw connections (1 or 2 conductor connections possible) Connection for drilled copper bars Without box terminal With cable lugs (1 or 2 conductor connections possible) Main conductor: Front terminal Back terminal Both terminals with box terminal (acc. to EN ) connected connected connected Finely stranded with end sleeve mm to to 50 max. 2 x Finely stranded without end sleeve mm 2 4 to to 50 max. 2 x Solid mm to to 16 max. 2 x 16 Stranded mm 2 4 to to 70 max. 2 x 50 Ribbon cable (no. x width x thickness) mm 6 x 9 x x 9 x x (6 x 9 x 0.8) WG conductor connections WG 10 to 2/0 10 to 2/0 max. 2 x 1/0 Max. conductor cross-sections mm 18 x 10 If bars larger than 12 x 10 mm are connected, a 3RT E1 terminal cover is necessary to comply with the phase clearance Finely stranded with cable lug mm 2 10 to 50 If conductors larger than mm 2 are Stranded with cable lug mm 2 10 to 70 connected, a 3RT E1 terminal cover is necessary to comply with the WG conductor connections, solid or stranded WG 7 to 1/0 phase clearance Terminal screws M6 (hexagon socket) Tightening torque Nm 4 to 6 (36 to 53 lb.in) uxiliary conductor: Solid mm 2 2 x (0.5 to 1.5); 2 x (0.75 to 2.5) acc. to IEC ; max. 2 x (0.75 to 4) Finely stranded with end sleeve mm 2 2 x (0.5 to 1.5); 2 x (0.75 to 2.5) WG conductor connections, solid or stranded WG 2 x (18 to 14) Terminal screws M3 Tightening torque Nm 0.8 to 1.2 (7 to 10.3 lb.in) Load ratings with C C-1 utilization category, switching resistive load Rated operational currents I e of three-phase loads = 1 (at 60 ) at 40 up to at 60 up to at 1000 V 1000 V Minimum conductor cross-section with I e load at 40 at 60 C-2 and C-3 utilization categories With an electrical endurance of 1.3 million operating mm 2 50 mm 2 50 Rated operational current I e up to 44 of motors with slipring or squirrel-cage rotor at 50 Hz and 60 Hz (at 60 ) Load ratings with DC DC-1 utilization category, switching resistive load L/R 1 ) Number of conducting paths connected in series Rated operational currents I e (at 60 ) 600 V DC-3 and DC-5 utilization categories, shunt and series motors Number of conducting paths connected in series Rated operational currents I e (at 60 ) 600 V Thermal load 10 s current 1 ) 630 Power loss per conducting path at I e /C-1 W ) cc. to VDE 0660 Part 102. Siemens NS K /75
3 3RT13 Contactors with 4 Main Contacts for Switching Resistive Loads Contactor Size (for 0, see page 3/58) 3RT13 /26 S2 3RT RT RT13 46 Mechanical endurance Oper. 10 million Electrical endurance at I e /C-1 Oper. approx. 0.5 mill. Rated insulation voltage U i (pollution degree 3) V Permissible ambient temperature in operation when stored to to +80 Degree of protection acc. to IEC and DIN terminal compartment IP 20 IP 20 IP 00 IP 20 IP 00 IP 20 IP 00 Power consumption of the coils (with coil in cold state and 1.0 x U s ) C operation Hz 50 50/ / / /60 closing closed V 61 64/ /0.74 V / / / / / / / / / /0.31 DC operation closing = closed W Coil voltage tolerance 0.8 to 1.1 x U s Operating times at 0.8 to 1.1 x U s Break time = opening time + arcing time C/DC operation closing time 6 to 30/ 30 to 90 C/DC operation opening time 13 to / 13 to 40 4 to / 50 to to 30/ 15 to to 50/ 110 to to / 14 to / / / / to 60/ 110 to to / 14 to 20 rcing time 10 to to to to 15 Short-circuit protection of contactors without overload relays Main circuit Fuse links, utilization category gl/gg NH 3N, DIZED 5SB, NEOZED 5SE acc. to IEC / EN (VDE 0660 Part 102) of coord. "1" 1 ) of coord. "2" 1 ) Weld-free ) ccording to excerpt from IEC (VDE 0660 Part 102): of coordination "1": Destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced if necessary. of coordination "2": No damage can be tolerated to the overload relay, but contact welding on the contactor is permitted if the contacts can be easily separated. 3/76 Siemens NS K 2000
4 3RT13 Contactors with 4 Main Contacts for Switching Resistive Loads Load ratings with C Contactor Size (for 0, see page 3/58) 3RT13 /26 S2 3RT RT RT13 46 C-1 utilization category, switching resistive load Rated operational currents I e (at 40 ) up to 33/ of three-phase loads = 0.95 (at 40 ) 12.5/15 22/26 Minimum conductor cross-section with I e load at 40 mm 2 10/ C-2 and C-3 utilization categories Rated operational currents I e (at 60 ) at 17/ 26 of motors with slipring or squirrel-cage rotor at 50 Hz and 60 Hz 4/5,5 7.5/ Load ratings with DC DC-1 utilization category, switching resistive load (L/R 1 ) Rated operational currents I e (at 40 ) DC-3 and DC-5 utilization categories, shunt and series motors (L/R 15 ) Rated operational currents I e (at 40 ) Number of conducting paths connected in series Number of conducting paths connected in series Siemens NS K /77
5 3RT15 Contactors with 4 Main Contacts for Switching Motors Contactor Size (for 0, see page 3/58) 3RT15 26 S2 3RT15 Mechanical endurance Oper. 10 million Electrical endurance at I e /C-1 Oper. approx. 0.5 million Rated insulation voltage U i (pollution degree 3) V 690 Permissible ambient temperature in operation when stored to to +80 Degree of protection acc. to IEC and DIN IP 20 IP 20 (term. compartment IP 00) Power consumption of the coils (with coil in cold state and 1.1 x U s ) C operation Hz 50 50/ /60 closing closed V / / 0.74 V / / 0.28 DC operation closing = closed W Coil voltage tolerance 0.8 to 1.1 x U s Operating times at 0.8 to 1.1 x U s Break time = opening time + arcing time / / / / 0.37 C/DC operation closing time 6 to 30/30 to 90 4 to /50 to 110 C/DC operation opening time 13 to /13 to to 30/15 to 30 rcing time 10 to to 15 Short-circuit protection of contactors without overload relays Main circuit Fuse links, utilization category gl/gg NH 3N, DIZED 5SB, NEOZED 5SE acc. to IEC / EN (VDE 0660 Part 102) of coord. "1" 1 ) of coord. "2" 1 ) Weld-free ) ccording to excerpt from IEC (VDE 0660 Part 102): of coordination "1": Destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced if necessary. of coordination "2": No damage can be tolerated to the overlaod relay, but contact welding on the contactor is permitted if the contacts can be easily separated. 3/78 Siemens NS K 2000
6 3RT15 Contactors with 4 Main Contacts for Switching Motors Load ratings with C Contactor Size 3RT15 26 S2 3RT15 C-1 utilization category, switching resistive load Rated operational currents I e (at 40 ) up to of three-phase loads = 0.95 (at 40 ) Minimum conductor cross-section with I e load at 40 mm C-2 and C-3 utilization categories Rated operational currents I e (at 60 ) up to 40 of motors with slipring or squirrel-cage rotor at 50 Hz and 60 Hz and Load ratings with DC DC-1 utilization category, switching resistive load (L/R 1 ) Rated operational current I e (at 60 ) Number of conducting paths connected in series DC-3 and DC-5 utilization categories, shunt and series motors (L/R 15 ) Rated operational current I e (at 60 ) 600 V Number of conducting paths connected in series V Siemens NS K /79
7 3RT16 Capacitor Contactors ll technical data not mentioned in the table below is identical to that of the 3RT10 26 contactors for size, to that of the 3RT10 36 contactors for size S2 and to that of the 3RT10 45 contactors for size. Contactor Size 3RT16 26 S2 3RT RT16 46 Capacitor rating for operational voltage 230 V 50/60 Hz 50/60 Hz 5 V 50/60 Hz 50/60 Hz uxiliary contacts mounted (unassigned) dditional auxiliary contacts mountable (laterally) kvar kvar kvar kvar NO 2 NC, 2 NO or 1 NO + 1 NC 0.85 to 1.1 x U s Coil voltage tolerance Max. operating frequency 1/h Electrical endurance Oper. > mbient temperature Specifications IEC /EN (VDE 0660) RT10 Coupling Relays (Interface) for Switching Motors ll technical data not mentioned in the table below is identical to that of the 3RT10 contactors for switching motors listed on page 3/44 onwards. The 3RT10 1. coupling relays cannot be extended with auxiliary switch blocks. Two single-pole auxiliary switch blocks can be mounted onto the 3RT10 2. coupling relays (see accessories on page 3/19). Contactor Size 0 3RT HB4. 0 3RT JB4. 0 3RT KB4. 3RT KB40 Mechanical endurance Oper. 30 million 30 million 30 million 10 million Coil voltage tolerance 0.7 to 1. x U s q 17 V to 30 V Power consumption of the coil (with coil in cold state) at U s 17 V W V W closing = closed 30 V W Permissible residual current of the electronics (with 0 signal) m < 10 m x 24 V < 10 m x < 10 m x < 6 m x U s V U s V 24 V U s U s Surge suppression in the coil no surge suppression with diode with varistor with varistor Operating times of the coupling relays Closing at 17 V Closing time NO Opening time NC 40 to to to to to to to to 0 at 24 V Closing time NO Opening time NC 30 to to to to to to to to 78 at 30 V Closing time NO Opening time NC 20 to to to to to to to to 56 Opening at 17 V to 30 V Closing time NO Opening time NC 7 to to to to 70 7 to to to to 3/80 Siemens NS K 2000
8 ccessories for 3RT1. Contactors acc. to IEC /DIN VDE 04 Part 2021 Solid-state time-delay blocks with semiconductor output 3RT19.6-2C 2D Rated insulation voltage C V 0 0 Pollution degree 3 Overvoltage category III acc. to DIN VDE 0110 Solid-state time-delay auxilary switch blocks 3RT19.6-2E 2F 2G Coil voltage tolerance 0.8 to 1.1 x U s 0.85 to 1.1 x U s 0.95 to 1.05 times 0.95 to 1.05 times rated frequency rated frequency Power consumption at C 230 V, 50 Hz Rated operational currents I e C-140, DC-13 C-15 at C 230 V, 50 Hz DC-13 at 24 V DC-13 at DC-13 W V for 3RT for 3RT19 26 DIZED fuse protection Utilization category gl/gg 4 Operating frequency with I e load, C 230 V with 3RT1016 contactor load, C 230 V Recovery time Minimum ON-period 200 (with OFF-delay) Residual current m w 5 1/h 1/h Voltage drop switched through V w 3.5 Short-time current-carrying capacity 10 (up to 10 ) Setting accuracy w & 15% w & 15% referred to upper limit of scale Repeat accuracy w & 1% w & 1% Mechanical endurance operating 100 x x 10 6 Permissible ambient temperature Degree of protection acc. to IEC in operation when stored to to +85 IP 40 terminals IP 20 to to +85 IP 40 terminals IP 20 Conductor connection solid mm 2 2 x (0.5 to 1.5) 2 x (0.75 to 4) 2 x (0.5 to 1.5) 2 x (0.75 to 4) finely stranded with end sleeve mm 2 2 x (0.5 to 2.5) 2 x (0.5 to 2.5) solid or stranded WG 2 x (18 to 14) 2 x (18 to 14) Terminal screw M3 M3 Tightening torque Nm 0.8 to to 1.2 Permissible mounting position any any Shock resistance Half sine acc. to IEC g/ 15/11 15/11 Vibration resistance acc. to IEC Hz/mm 10 to 55/0. 10 to 55/0. EMC tests basic specification EN ; EN EN ; EN Surge suppression varistor integrated in time-delay relay Siemens NS K /81
9 3R13 Reversing Contactor ssemblies The technical data is identical to that of the 3RT10.. contactors listed on page 3/54 onwards. The s and u approvals only apply to the complete contactor assemblies and not to the components for customer assembly. 3R14 Contactor ssemblies for Star-Delta Starting acc. to IEC and VDE 0660 Part 102 Short-circuit protection with fuses for motor feeders with short-circuit currents up to 50 k and. For thermally delayed overload relays, see Part 4. Size of contactors K1-K3-K2 Rated motor current Overload relay Setting range Permissible short-circuit fuses for starters, comprising contactor assemblies and overload relays (the overload relays must be set to 0.58 times the rated motor current) Single or double infeed 2 ) Fuse links NH 3N NH TYP 3ND u-listed British DIZED 5SB Utilization cat. fuses Standard NEOZED 5SE am CLSS fuses Utilization cat. gl/gg K5 BS88 of coord. 1 ) of coord. 1 ) of coord. 1 ) "1" "2" "2" "1" "2" RU HB0 5.5 to RU JB0 7 to RU B0 11 to RU BB0 14 to RU DB0 20 to S2-S2-50 3RU EB0 22 to S2-S2-3RU FB0 28 to S2-S2-S2 80 3RU GB0 36 to S2-S2-S2 86 3RU HB0 40 to S RU KB0 to S RU LB0 70 to ) ccording to IEC (VDE 0660 Part 102): of coordination "1": Destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced if necessary. of coordination "2": No damage can be tolerated to the overload relay, but contact welding on the contactor is permitted if the contacts can be easily separated. 2) The maximum rated motor current must not be exceeded. 3/82 Siemens NS K 2000
10 3R14 Contactor ssemblies for Star-Delta Starting ll technical data not mentioned in the table below is identical to that of the individual 3RT contactors and the 3RU time-delay relays. Starters Sizes S.. - S.. - S.. 3R Mechanical endurance Oper. 3 million Short-circuit protection without overload relay For short-circuit protection with overload relay, see Part 4. Maximum rated current of the fuse Main circuit 1 ) Fuse links, utilization category gl/gg NH 3N, DIZED 5SB, NEOZED 5SE Single or double infeed acc. to IEC / DIN VDE 0660 Part 102 of coord. "1" 1 ) of coord. "2" 1 ) Control circuit Fuse links, utilization category gl/gg DIZED 5SB, NEOZED 5SE (short-circuit current I k 1 k) Miniature circuit-breaker with C-characteristic Size of contactors Unassigned auxiliary contacts of the contactors Line Delta Star Load rating with C-3 utilization category Reversing time up to 10 s Rated operational current of three-phase motors at 50 Hz and K1 K3 K2 3RT RT RT , 6 2 ) if the auxiliary contact of the overload relay is connected in the contactor coil circuit 10, 6 2 ) if the auxiliary contact of the overload relay is connected in the contactor coil circuit See circuit diagra of the control circuit on page 3/93. at 1000 V Operating frequency with overload relay 1/h Load rating with C-3 utilization category Reversing time up to 15 s Rated operational current of three-phase motors at 50 Hz and at 1000 V Operating frequency with overload relay 1/h Load rating with C-3 utilization category Reversing time up to 20 s Rated operational current of three-phase motors at 50 Hz and at 1000 V Operating frequency with overload relay 1/h ) ccording to IEC (VDE 0660 Part 102): of coordination "1": Destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced if necessary. of coordination "2": No damage can be tolerated to the overload relay, but contact welding on the contactor is permitted if the contacts can be easily separated. 2) Up to I k 0.5 k; 2. Siemens NS K /83
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