vacuum contactor, AC-3 300 A, 160 kW / 400 V, AC (50-60 Hz) / DC operation 500-550 V AC/DC auxiliary contacts 2 NO + 2 NC 3-pole, frame size S10 busbar connections drive: conventional |
product brand name | SIRIUS |
product designation | Vacuum contactor |
product type designation | 3RT12 |
General technical data |
size of contactor | S10 |
product extension | |
● function module for communication | No |
● auxiliary switch | Yes |
power loss [W] for rated value of the current | |
● at AC in hot operating state | 42 W |
● at AC in hot operating state per pole | 14 W |
● without load current share typical | 8.2 W |
insulation voltage | |
● of main circuit with degree of pollution 3 rated value | 1 000 V |
● of auxiliary circuit with degree of pollution 3 rated value | 500 V |
surge voltage resistance | |
● of main circuit rated value | 8 kV |
● of auxiliary circuit rated value | 6 kV |
maximum permissible voltage for safe isolation between coil and main contacts according to EN 60947-1 | 690 V |
shock resistance at rectangular impulse | |
● at AC | 8,5g / 5 ms, 4,2g / 10 ms |
● at DC | 8,5g / 5 ms, 4,2g / 10 ms |
shock resistance with sine pulse | |
● at AC | 13,4g / 5 ms, 6,5g / 10 ms |
● at DC | 13,4g / 5 ms, 6,5g / 10 ms |
mechanical service life (switching cycles) | |
● of contactor typical | 10 000 000 |
● of the contactor with added electronically optimized auxiliary switch block typical | 5 000 000 |
● of the contactor with added auxiliary switch block typical | 10 000 000 |
reference code according to IEC 81346-2 | Q |
Substance Prohibitance (Date) | 05/01/2012 |
Ambient conditions |
installation altitude at height above sea level maximum | 2 000 m |
ambient temperature | |
● during operation | -25 ... +60 °C |
● during storage | -55 ... +80 °C |
relative humidity minimum | 10 % |
relative humidity at 55 °C according to IEC 60068-2-30 maximum | 95 % |
Main circuit |
number of poles for main current circuit | 3 |
number of NO contacts for main contacts | 3 |
operating voltage | |
● at AC-3 rated value maximum | 1 000 V |
● at AC-3e rated value maximum | 1 000 V |
operational current | |
● at AC-1 at 400 V at ambient temperature 40 °C rated value | 330 A |
● at AC-1 | |
— up to 690 V at ambient temperature 40 °C rated value | 330 A |
— up to 690 V at ambient temperature 60 °C rated value | 300 A |
— up to 1000 V at ambient temperature 40 °C rated value | 330 A |
— up to 1000 V at ambient temperature 60 °C rated value | 300 A |
● at AC-3 | |
— at 400 V rated value | 300 A |
— at 500 V rated value | 300 A |
— at 690 V rated value | 300 A |
— at 1000 V rated value | 300 A |
● at AC-3e | |
— at 400 V rated value | 300 A |
— at 500 V rated value | 300 A |
— at 690 V rated value | 300 A |
— at 1000 V rated value | 300 A |
● at AC-4 at 400 V rated value | 280 A |
● at AC-6a | |
— up to 230 V for current peak value n=20 rated value | 300 A |
— up to 400 V for current peak value n=20 rated value | 300 A |
— up to 500 V for current peak value n=20 rated value | 300 A |
— up to 690 V for current peak value n=20 rated value | 300 A |
— up to 1000 V for current peak value n=20 rated value | 300 A |
● at AC-6a | |
— up to 230 V for current peak value n=30 rated value | 209 A |
— up to 400 V for current peak value n=30 rated value | 209 A |
— up to 500 V for current peak value n=30 rated value | 209 A |
— up to 690 V for current peak value n=30 rated value | 209 A |
— up to 1000 V for current peak value n=30 rated value | 209 A |
minimum cross-section in main circuit at maximum AC-1 rated value | 185 mm² |
operational current for approx. 200000 operating cycles at AC-4 | |
● at 400 V rated value | 140 A |
● at 690 V rated value | 140 A |
operating power | |
● at AC-3 | |
— at 230 V rated value | 90 kW |
— at 400 V rated value | 160 kW |
— at 500 V rated value | 200 kW |
— at 690 V rated value | 250 kW |
— at 1000 V rated value | 400 kW |
● at AC-3e | |
— at 230 V rated value | 90 kW |
— at 400 V rated value | 160 kW |
— at 500 V rated value | 200 kW |
— at 690 V rated value | 250 kW |
— at 1000 V rated value | 400 kW |
operating power for approx. 200000 operating cycles at AC-4 | |
● at 400 V rated value | 79 kW |
● at 690 V rated value | 138 kW |
operating apparent power at AC-6a | |
● up to 230 V for current peak value n=20 rated value | 120 000 kVA |
● up to 400 V for current peak value n=20 rated value | 200 000 VA |
● up to 500 V for current peak value n=20 rated value | 260 000 VA |
● up to 690 V for current peak value n=20 rated value | 350 000 VA |
● up to 1000 V for current peak value n=20 rated value | 520 000 VA |
operating apparent power at AC-6a | |
● up to 230 V for current peak value n=30 rated value | 80 000 VA |
● up to 400 V for current peak value n=30 rated value | 140 000 VA |
● up to 500 V for current peak value n=30 rated value | 180 000 VA |
● up to 690 V for current peak value n=30 rated value | 250 000 VA |
● up to 1000 V for current peak value n=30 rated value | 360 000 VA |
no-load switching frequency | |
● at AC | 2 000 1/h |
● at DC | 2 000 1/h |
operating frequency | |
● at AC-1 maximum | 750 1/h |
● at AC-2 maximum | 250 1/h |
● at AC-3 maximum | 750 1/h |
● at AC-3e maximum | 750 1/h |
● at AC-4 maximum | 250 1/h |
Control circuit/ Control |
type of voltage of the control supply voltage | AC/DC |
control supply voltage at AC | |
● at 50 Hz rated value | 500 ... 550 V |
● at 60 Hz rated value | 500 ... 550 V |
control supply voltage at DC | |
● rated value | 500 ... 550 V |
operating range factor control supply voltage rated value of magnet coil at DC | |
● initial value | 0.8 |
● full-scale value | 1.1 |
operating range factor control supply voltage rated value of magnet coil at AC | |
● at 50 Hz | 0.8 ... 1.1 |
● at 60 Hz | 0.8 ... 1.1 |
design of the surge suppressor | with varistor |
apparent pick-up power of magnet coil at AC | |
● at 50 Hz | 590 VA |
● at 60 Hz | 590 VA |
inductive power factor with closing power of the coil | |
● at 50 Hz | 0.9 |
● at 60 Hz | 0.9 |
apparent holding power of magnet coil at AC | |
● at 50 Hz | 6.1 VA |
● at 60 Hz | 6.1 VA |
inductive power factor with the holding power of the coil | |
● at 50 Hz | 0.9 |
● at 60 Hz | 0.9 |
closing power of magnet coil at DC | 700 W |
holding power of magnet coil at DC | 8.2 W |
closing delay | |
● at AC | 30 ... 95 ms |
● at DC | 30 ... 95 ms |
opening delay | |
● at AC | 40 ... 80 ms |
● at DC | 40 ... 80 ms |
arcing time | 10 ... 15 ms |
control version of the switch operating mechanism | Standard A1 - A2 |
Auxiliary circuit |
number of NC contacts for auxiliary contacts instantaneous contact | 2 |
number of NO contacts for auxiliary contacts instantaneous contact | 2 |
operational current at AC-12 maximum | 10 A |
operational current at AC-15 | |
● at 230 V rated value | 6 A |
● at 400 V rated value | 3 A |
● at 500 V rated value | 2 A |
● at 690 V rated value | 1 A |
operational current at DC-12 | |
● at 24 V rated value | 10 A |
● at 48 V rated value | 6 A |
● at 60 V rated value | 6 A |
● at 110 V rated value | 3 A |
● at 125 V rated value | 2 A |
● at 220 V rated value | 1 A |
● at 600 V rated value | 0.15 A |
operational current at DC-13 | |
● at 24 V rated value | 10 A |
● at 48 V rated value | 2 A |
● at 60 V rated value | 2 A |
● at 110 V rated value | 1 A |
● at 125 V rated value | 0.9 A |
● at 220 V rated value | 0.3 A |
● at 600 V rated value | 0.1 A |
contact reliability of auxiliary contacts | 1 faulty switching per 100 million (17 V, 1 mA) |
UL/CSA ratings |
full-load current (FLA) for 3-phase AC motor | |
● at 480 V rated value | 302 A |
● at 600 V rated value | 289 A |
yielded mechanical performance [hp] | |
● for 3-phase AC motor | |
— at 200/208 V rated value | 100 hp |
— at 220/230 V rated value | 125 hp |
— at 460/480 V rated value | 250 hp |
— at 575/600 V rated value | 300 hp |
contact rating of auxiliary contacts according to UL | A600 / Q600 |
Short-circuit protection |
design of the fuse link | |
● for short-circuit protection of the main circuit | |
— with type of coordination 1 required | gG: 500 A (690 V, 100 kA) |
— with type of assignment 2 required | gG: 500 A (690 V, 100 kA), aM: 400 A (690 V, 50 kA), BS88: 450 A (415 V, 50 kA) |
● for short-circuit protection of the auxiliary switch required | gG: 10 A (500 V, 1 kA) |
Installation/ mounting/ dimensions |
mounting position | +/-22,5° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface; standing, on horizontal mounting surface |
fastening method | screw fixing |
● side-by-side mounting | Yes |
height | 210 mm |
width | 145 mm |
depth | 206 mm |
required spacing | |
● with side-by-side mounting | |
— forwards | 20 mm |
— upwards | 10 mm |
— downwards | 10 mm |
— at the side | 0 mm |
● for grounded parts | |
— forwards | 20 mm |
— upwards | 10 mm |
— at the side | 10 mm |
— downwards | 10 mm |
● for live parts | |
— forwards | 20 mm |
— upwards | 10 mm |
— downwards | 10 mm |
— at the side | 10 mm |
Connections/ Terminals |
type of electrical connection | |
● for main current circuit | Connection bar |
● for auxiliary and control circuit | screw-type terminals |
● at contactor for auxiliary contacts | Screw-type terminals |
● of magnet coil | Screw-type terminals |
width of connection bar | 25 mm |
thickness of connection bar | 6 mm |
diameter of holes | 11 mm |
number of holes | 1 |
type of connectable conductor cross-sections | |
● at AWG cables for main contacts | 2/0 ... 500 kcmil |
connectable conductor cross-section for main contacts | |
● stranded | 70 ... 240 mm² |
connectable conductor cross-section for auxiliary contacts | |
● solid or stranded | 0.5 ... 4 mm² |
● finely stranded with core end processing | 0.5 ... 2.5 mm² |
type of connectable conductor cross-sections | |
● for auxiliary contacts | |
— solid | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²) |
— solid or stranded | 2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²) |
— finely stranded with core end processing | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
● at AWG cables for auxiliary contacts | 2x (20 ... 16), 2x (18 ... 14), 1x 12 |
AWG number as coded connectable conductor cross section | |
● for auxiliary contacts | 18 ... 14 |
Safety related data |
product function | |
● mirror contact according to IEC 60947-4-1 | Yes |
● positively driven operation according to IEC 60947-5-1 | No |
protection class IP on the front according to IEC 60529 | IP00; IP20 with box terminal/cover |
touch protection on the front according to IEC 60529 | finger-safe, for vertical contact from the front with box terminal/cover |
suitability for use | |
● safety-related switching OFF | Yes |
Certificates/ approvals |
Downloads and manuals |
|
Further information |
Information- and Downloadcenter (Catalogs, Brochures,…) |
Industry Mall (Online ordering system) |
Cax online generator |
Service&Support (Manuals, Certificates, Characteristics, FAQs,...) |
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...) |
Characteristic: Tripping characteristics, I²t, Let-through current |
Further characteristics (e.g. electrical endurance, switching frequency) |
|
|
|
last modified: | 3/24/2022 |
Date 5/10/2022 | Subject to change without notice © Copyright Siemens 2022 |