Siemens · Air Circuit Breakers

SENTRON 3WT1

Siemens SENTRON air circuit breakers organized by current 3WA/3WT platforms, North American variants and installed-base families.

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Brand: Siemens
Category: Air Circuit Breakers

SERIES OVERVIEW

Primary identification parameters

Series: SENTRON 3WT1
Confirm against current product documentation: Confirm against current product documentation
Rated current: AC 400–4000A
Main voltage: up to 800Vac P specialist ; 440/690V — confirm against current documentation
Poles: 3P/4P
Mounting: fixed/withdrawable
Icu/ — confirm against current documentation: Icu 55–85kA@440Vac — confirm against current documentation
Trip unit: ETU300WT, ETU400/500WT, — confirm against current documentation
Confirm against current product documentation: COM190WT — confirm against current documentation

TECHNICAL DATA · 4 ROWS

SENTRON 3WT1 and — confirm against current documentation

3WT1 2024 ACB, . — confirm against current documentation

Confirm against current product documentation	Confirm against current product documentation	Confirm against current product documentation	Icu — confirm against current documentation	Voltage	Poles	Mounting	Confirm against current product documentation	Communication
3WT11 FS1	400– 2000A — confirm against current documentation	/M/H , — confirm against current documentation	55–85kA@440V — confirm against current documentation	440/690Vac — confirm against current documentation	3P/4P	fixed/withdrawable	ETU300WT/ETU400/ETU500WT	COM190WT — confirm against current documentation
3WT12 FS2	2000–4000A — confirm against current documentation	M/C/P , — confirm against current documentation	55–85kA@440V — confirm against current documentation	P specialist — confirm against current documentation	3P/4P	fixed/withdrawable	ETU300WT/ETU400/ETU500WT	COM190WT — confirm against current documentation
3WT1240-4.M71-....	4000A	M withdrawable — confirm against current documentation	85kA@440V	up to 440Vac — confirm against current documentation	4P	withdrawable, — confirm against current documentation	ETU400 LSI — confirm against current documentation	configuration-dependent
3WT1240-4.N71-....	4000A	M withdrawable — confirm against current documentation	85kA@440V	up to 440Vac — confirm against current documentation	4P	withdrawable, — confirm against current documentation	ETU400 LSIG — confirm against current documentation	configuration-dependent

TECHNICAL DATA · 3 ROWS

SENTRON , — confirm against current documentation

ETU and , . — confirm against current documentation

Confirm against current product documentation	Confirm against current product documentation	Confirm against current product documentation	Confirm against current product documentation	Confirm against current product documentation	Communication	Confirm against current product documentation	Notes
3WT1	ETU300WT	Confirm against current product documentation	/LED — confirm against current documentation	version-dependent	Confirm against current product documentation	3WT1	Confirm against current product documentation
3WT1	ETU400/ETU500WT	LSI/LSIG, and — confirm against current documentation	, model-dependent — confirm against current documentation	/ , version-dependent — confirm against current documentation	COM190WT — confirm against current documentation	3WT1	Confirm against current product documentation
3WT1	COM190WT	Confirm against current product documentation	Confirm against current product documentation	Confirm against current product documentation	/Modbus, — confirm against current documentation	3WT1	ETU and — confirm against current documentation

TECHNICAL DATA · 3 ROWS

SENTRON ACB , and — confirm against current documentation

withdrawable and . — confirm against current documentation

Category	Confirm against current product documentation	Confirm against current product documentation	Confirm against current product documentation	Must confirm
Confirm against current product documentation	fixed — confirm against current documentation	3WA/3WT1/3WL	Confirm against current product documentation	, and — confirm against current documentation
Confirm against current product documentation	withdrawable + — confirm against current documentation	3WA/3WT1/3WL	Confirm against current product documentation	; and shutter — confirm against current documentation
Confirm against current product documentation	Confirm against current product documentation	3WA/3WT1	Confirm against current product documentation	, , and — confirm against current documentation

TECHNICAL DATA · 1 ROWS

SENTRON ACB and — confirm against current documentation

Confirm against current product documentation

Confirm against current product documentation	Product level	Meaning	Confirm against current product documentation	Confirm against current product documentation
3WT1240-4.M71-....	3WT1 — confirm against current documentation	4P, 4000A, withdrawable, M ETU — confirm against current documentation	Confirm against current product documentation	Confirm against current product documentation

TECHNICAL DATA · 5 ROWS

SENTRON ACB and — confirm against current documentation

, UL/ANSI, and . — confirm against current documentation

Category	Confirm against current product documentation	Confirm against current product documentation	Applications	Confirm against current product documentation
Confirm against current product documentation	3WA DC	up to 4000A, DC — confirm against current documentation	distribution, and — confirm against current documentation	, and DC — confirm against current documentation
North America	3WA UL489/UL1066	North America and — confirm against current documentation	North America — confirm against current documentation	IEC — confirm against current documentation
Confirm against current product documentation	ETU600+PMF+ — confirm against current documentation	, , and — confirm against current documentation	distribution, — confirm against current documentation	, and — confirm against current documentation
Confirm against current product documentation	/ , configuration-dependent — confirm against current documentation	Confirm against current product documentation	Confirm against current product documentation	and — confirm against current documentation
Confirm against current product documentation	3WL 3WA retrofit/ — confirm against current documentation	and — confirm against current documentation	distribution — confirm against current documentation	Confirm against current product documentation

TECHNICAL DATA · 27 ROWS

SENTRON — confirm against current documentation

25 . — confirm against current documentation

No.	Confirm against current product documentation	Confirm against current product documentation	Example	Confirm against current product documentation	Confirm against current product documentation
1	Confirm against current product documentation	IEC 60947-2 / UL489 / UL1066	IEC 60947-2	Confirm against current product documentation	Standard: IEC 60947-2
2	Confirm against current product documentation	Confirm against current product documentation	SENTRON 3WT8	and — confirm against current documentation	Series: SENTRON 3WT8
3	Confirm against current product documentation	In — confirm against current documentation	Size I, 1600A	/CT — confirm against current documentation	Frame/In: Size I / 1600 A
4	Confirm against current product documentation	Ue and — confirm against current documentation	415Vac 50Hz	Icu — confirm against current documentation	Ue: 415 Vac, 50 Hz
5	Confirm against current product documentation	, Icu and — confirm against current documentation	66kA@500Vac	Confirm against current product documentation	Icu: ___ kA at ___ V
6	Ics/Icw/Icm	and — confirm against current documentation	Icw ___ kA/1s	Confirm against current product documentation	Ics/Icw/Icm: ___
7	Confirm against current product documentation	3P/4P — confirm against current documentation	4P	Confirm against current product documentation	Poles: 4P
8	Confirm against current product documentation	fixed/withdrawable	Withdrawable	Confirm against current product documentation	Mounting: Withdrawable
9	Confirm against current product documentation	guide frame — confirm against current documentation	Included	Confirm against current product documentation	Guide frame: included
10	Confirm against current product documentation	Confirm against current product documentation	Rear horizontal	Confirm against current product documentation	Main connection: ___
11	Confirm against current product documentation	ETU and — confirm against current documentation	ETU37WT LSING	Confirm against current product documentation	Trip unit: __________
12	Confirm against current product documentation	In/Ir/Isd/Ii/Ig	Ir=0.8In	Confirm against current product documentation	Protection settings: ___
13	Confirm against current product documentation	Confirm against current product documentation	project-dependent — confirm against current documentation	Confirm against current product documentation	Metering: required / not required
14	Confirm against current product documentation	, and — confirm against current documentation	Confirm against current product documentation	Confirm against current product documentation	Communication: __________
15	Confirm against current product documentation	and AC/DC — confirm against current documentation	220–240Vac	Confirm against current product documentation	Motor operator: 220–240 Vac
16	Confirm against current product documentation	Confirm against current product documentation	220Vdc	Confirm against current product documentation	Closing coil: 220 Vdc
17	Confirm against current product documentation	Confirm against current product documentation	2×220Vdc	Confirm against current product documentation	Trip coils: 2 x 220 Vdc
18	Confirm against current product documentation	Confirm against current product documentation	220Vac	Confirm against current product documentation	Undervoltage release: ___
19	Confirm against current product documentation	and — confirm against current documentation	4CO + ready-to-close	Confirm against current product documentation	Auxiliary contacts: ___
20	Confirm against current product documentation	Confirm against current product documentation	Required	Confirm against current product documentation	Position indication: required
21	Confirm against current product documentation	Confirm against current product documentation	Mechanical interlock	Confirm against current product documentation	Interlocking: ___
22	Confirm against current product documentation	Confirm against current product documentation	50°C, 2000m	Confirm against current product documentation	Environment: ___
23	Confirm against current product documentation	Confirm against current product documentation	Saudi Arabia	Confirm against current product documentation	Destination market: ___
24	Confirm against current product documentation	Confirm against current product documentation	Study attached	Confirm against current product documentation	Coordination study: attached
25	Confirm against current product documentation	, , and — confirm against current documentation	3WL / 3WT installed base	Confirm against current product documentation	Existing breaker data attached
Confirm against current product documentation
SENTRON IEC	Siemens SENTRON Air Circuit Breaker Series / complete order number: __________ Standard: IEC 60947-2 Frame / rated current: __________ / ___ A Rated operational voltage: ___ Vac, ___ Hz Breaking class / Icu: ___ / ___ kA at ___ V Ics / Icw / Icm: __________ Poles: 3P / 4P Mounting: Fixed / Withdrawable Guide frame: Included / Not required Main connection: __________ Trip unit / protection functions: __________ Metering: Required / Not required Communication: __________ Spring charging motor: ___ Vac / Vdc Closing coil: ___ Vac / Vdc Trip coils: ___ x ___ Vac / Vdc Undervoltage release: __________ Auxiliary / position contacts: __________ Quantity: ___ pcs

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