Siemens Contactor 3RT1065-6AP36

Series: SIRIUS 3RT, Size S10, Product Status: Active

✅ Key Specifications

Main contacts: 3-pole

Rated AC-3 current: 265 A

Motor rating at 400 V: 132 kW (50/60 Hz)

Coil voltage Uc: AC/DC 220～240 V (universal AC/DC coil)

Built-in auxiliary contacts: 2NO + 2NC, fixed, non-removable

Main circuit connection: Busbar terminals

Control / auxiliary circuit: Screw terminals

Actuation: Traditional electromagnetic coil (non-electronic energy-saving type)

Rated insulation voltage Ui: 1000 V (pollution degree 3)

Power consumption: 54 W total loss at hot state, typical 7.4 W at no-load

📌 Model Breakdown (3RT1065-6AP36)

3RT: SIRIUS contactor

1: Standard power contactor (non-safety, non-vacuum)

0: Standard main contacts

65: Size code → S10 frame, AC-3 265 A

6: Frame + main circuit connection type

A: Coil AC/DC 220–240 V

P: Auxiliary contacts 2NO+2NC

36: Main circuit busbar, auxiliary screw terminals

🧩 Compatible Accessories (common for S10)

Surge suppressor: 3RT1966-1DG00 (RC), 3RT1966-1ES00 (varistor)

Auxiliary contact block: Series 3RH1921 (for extra auxiliary contacts)

Matching thermal overload relay: Series 3RU2 (for S10)

Mechanical interlock: 3RT1966-2A

🔁 Alternative Selection

Same frame, different coil voltage: 3RT1065-6… change suffix for coil voltage

Economy equivalent: 3RT5065-6AP36 (Series 3RT5, identical mounting dimension, similar performance)

⚠️ Note: 3RT5 is economy version, mechanical & electrical service life is shorter than premium 3RT1 series. Check datasheet before retrofit.

📋 Typical Applications

Starting/stopping of 3-phase asynchronous motors up to 132 kW: fans, water pumps, air compressors, large belt conveyors, power distribution cabinets, HVAC, production line main circuits.

📎 Remarks

Not vacuum contactor (vacuum type is 3RT12xx series)

Universal AC/DC coil, can be driven directly by PLC DC220 V or mains AC220 V

Main circuit is busbar type, cannot connect cable lugs directly; copper busbar adapter required

Benchmark target: Siemens 3RT1065-6AP36｜3P / AC-3 265 A / 132 kW @ 400 V / Coil AC/DC 220~240 V / Built-in 2NO+2NC / Busbar main connection

⚠️ Important note: Only equivalent in power rating. Mounting dimensions, mounting holes, accessories and auxiliary contact base are NOT interchangeable. Verify cabinet space, wiring and auxiliary contact configuration before retrofit.

✅ Schneider (TeSys Giga, current production, replacement for old LC1F265)

LC1G265KUEN

AC-3: 265 A, 132 kW @ 400 V, 3P

Coil: 100–250 V AC/DC wide voltage, covers 220–240 V perfectly

Standard: No built-in 2NO+2NC. Auxiliary contact block LA1G22 (2NO+2NC) must be added to match Siemens original configuration

Obsolete old model: LC1F265M7 (AC220 V only, discontinued, not recommended for new projects)

Full matched equivalent: LC1G265KUEN + LA1G22

✅ ABB AF series (AF with electronic wide-voltage coil, similar positioning to Siemens universal AC/DC coil)

AF265-30-22-12

AC-3: 265 A, 132 kW @ 400 V, 3P

Coil: 200–240 V AC/DC (suffix 12 for this voltage range)

Built-in auxiliary contacts: 2NO+2NC (-22), same as Siemens built-in 2NO+2NC

Main circuit: Busbar connection, same busbar terminal style as Siemens S10

Material No.: 1SFL547002R1222

Suffix explanation:

-22 = 2NO+2NC

-12 = 200–240 V AC/DC

-13 = 48–130 V AC/DC (do not select by mistake)

Comparison Table

Item	Siemens 3RT1065-6AP36	Schneider LC1G265KUEN+LA1G22	ABB AF265-30-22-12
AC-3 Current	265 A	265 A	265 A
Motor Power @400 V	132 kW	132 kW	132 kW
Coil	220–240 V AC/DC	100–250 V AC/DC	200–240 V AC/DC
Auxiliary Contacts	Built-in 2NO+2NC	No built-in, add LA1G22	Built-in 2NO+2NC
Main Connection	Busbar	Busbar	Busbar
Product Status	Active	Active	Active

Selection Reminders

ABB AF uses electronic wide-voltage coil, different principle from Siemens traditional electromagnetic coil, surge suppression solution differs;
Schneider TeSys Giga overall size and mounting pitch differ from legacy LC1F and Siemens S10, cabinet space must be rechecked for retrofit;
For direct replacement of old LC1F265, OEM recommendation is LC1G265KUEN;
If you prefer built-in 2NO+2NC without extra auxiliary block, ABB AF265-30-22-12 is preferred.

Siemens SIRIUS 3RT10 Standard Power Contactors (3-pole, AC-3, benchmark for 3RT1065-6AP36)

Note: 3RT10 = premium imported SIRIUS, electromagnetic coil, motor contactor; Frames: S00 / S0 / S2 / S3 / S6 / S10 / S12; 400 V, 50/60 Hz; Only base catalog numbers listed; suffix varies by coil voltage, auxiliary contact and terminal type

Matching economy equivalent: 3RT50xx (local production, same mounting footprint, shorter service life)

3RT10 Base Catalog List (AC-3 @400 V)

Base Model	AC-3 Current	Motor Power @400 V	Frame Size
3RT1015	7 A	3 kW	S00
3RT1016	9 A	4 kW	S00
3RT1017	12 A	5.5 kW	S00
3RT1023	9 A	4 kW	S0
3RT1024	12 A	5.5 kW	S0
3RT1025	17 A	7.5 kW	S0
3RT1026	25 A	11 kW	S0
3RT1034	32 A	15 kW	S2
3RT1035	40 A	18.5 kW	S2
3RT1036	50 A	22 kW	S2
3RT1044	65 A	30 kW	S3
3RT1045	75 A	37 kW	S3
3RT1046	95 A	45 kW	S3
3RT1054	115 A	55 kW	S6
3RT1055	150 A	75 kW	S6
3RT1056	185 A	90 kW	S6
3RT1064	225 A	110 kW	S10
3RT1065	265 A	132 kW	S10 (this item)
3RT1066	300 A	160 kW	S10
3RT1075	370 A	200 kW	S12
3RT1076	450 A	250 kW	S12

Model Suffix Coding Rule (3RT10XX X P X X)

Take 3RT1065-6AP36 as example:

1st segment (6): Frame + main circuit terminal type (screw / busbar)
A: Coil code

A = AC/DC 220–240 V (this item)

B = AC/DC 110–127 V

C = AC 24 V

D = AC 48 V

E = AC 110 V

F = AC 230 V

G = AC 400 V

M = DC 24 V

P: Auxiliary contact configuration

P = 2NO+2NC (built-in, this item)

K = 1NO+1NC

N = 0NO+0NC (no built-in auxiliary contacts, add 3RH1921)

Last two digits: Terminal type

36: Main busbar, auxiliary screw terminals (common for S10/S12 high current)

30: Screw terminals (S00~S6 small & medium frames)

Example: 3RT1065-6AP36 → Coil AC/DC 220~240 V, 2NO+2NC, busbar main connection

Other Series Branches (do not select incorrectly)

3RT12xx: Vacuum contactor (high voltage, frequent switching, not for standard motor duty)

3RT16xx: Railway dedicated contactor

3TC: DC contactor

3RT20xx: New generation SIRIUS (replaces legacy 3RT1, mixed local/import, similar dimension but accessories not interchangeable)

3RT50xx: Economy version, equivalent to 3RT10, lower cost, shorter electrical life, preferred for retrofit

3RT60xx: Low-cost domestic small contactor (S00/S0)

3RT50 Economy Equivalent List (one-to-one match with 3RT10)

3RT5015 / 3RT5016 / 3RT5017

3RT5023 / 3RT5024 / 3RT5025 / 3RT5026

3RT5034 / 3RT5035 / 3RT5036

3RT5044 / 3RT5045 / 3RT5046

3RT5054 / 3RT5055 / 3RT5056

3RT5064 / 3RT5065 / 3RT5066

3RT5075 / 3RT5076

Example: 3RT5065-6AP36 = economy equivalent of 3RT1065-6AP36

Common Accessory Prefix (SIRIUS S00~S12)

Auxiliary contact block: 3RH1921

Surge suppressor: 3RT19xx (RC / varistor / diode)

Mechanical interlock: 3RT19xx-2A

Thermal overload relay: 3RU21 (S00~S6), 3RU22 (S10/S12)

Electrical interlock, timer attachment: 3RT19 / 3RA19

Important Selection Notes

S00~S6 are mostly screw terminals; S10, S12 (225 A and above) are mainly busbar type, cable lugs cannot be crimped directly
3RT10 is traditional electromagnetic coil; many new 3RT20 use electronic energy-saving coil, surge absorption scheme differs
Versions with built-in auxiliary contacts are limited; most stock types have no built-in aux contacts, external 3RH1921 is required
Old 3TF series is discontinued; prefer 3RT50 / 3RT20 for replacement

Surge Suppressor, Thermal Overload Relay & Mechanical Interlock by Frame for 3RT10

Base series: 3RT10 standard SIRIUS contactor (electromagnetic coil); accessories also fit equivalent 3RT50 economy series;

Thermal relay: 3RU21 (S00~S6), 3RU22 (S10/S12); Surge suppressor: RC circuit, varistor, diode; Mechanical interlock is frame-specific.

S00 Frame (3RT1015/1016/1017)

Surge suppressor: 3RT1916-1DG00 (RC) / 3RT1916-1ES00 (varistor)

Thermal overload relay: Series 3RU2116 (select current range as required)

Mechanical interlock: 3RT1916-2A

S0 Frame (3RT1023/1024/1025/1026)

Surge suppressor: 3RT1926-1DG00 (RC) / 3RT1926-1ES00 (varistor)

Thermal overload relay: Series 3RU2126

Mechanical interlock: 3RT1926-2A

S2 Frame (3RT1034/1035/1036)