Siemens 3VA2125-8HL36-0AA0 SENTRON MCCB, 25 A, 3-Pole, 440 k

Name: 3VA2125-8HL36-0AA0
Brand: Siemens
SKU: 3VA2125-8HL36-0AA0
Availability: LimitedAvailability
Author: Petrochem Pete

Specifications

Identification

3VA2125-8HL36-0AA0 — Identification
Parameter	Value
Product designation	Molded case circuit breaker
Brand / range	SENTRON

Ratings

3VA2125-8HL36-0AA0 — Ratings
Parameter	Value
Number of poles	3
Rated operational voltage Ue (AC)	690 V
Rated insulation voltage Ui	800 V
Current at 40 °C	25 A
Current at 45 °C	25 A
Current at 50 °C	25 A
Current at 55 °C	25 A
Current at 60 °C	25 A
Current at 65 °C	25 A
Current at 70 °C	25 A
Switching capacity class	L
Breaking capacity at 240 V	440 kA
Breaking capacity at 415 V	330 kA
Breaking capacity at 440 V	330 kA
Breaking capacity at 500 V	220 kA
Breaking capacity at 690 V	52.5 kA
Power loss, max.	0.5 W

Protection & Trip Unit

3VA2125-8HL36-0AA0 — Protection & Trip Unit
Parameter	Value
Overcurrent release (trip unit) type	ETU320
Overcurrent protection function	LI
Ground-fault monitoring	Without
Grounding protection function	No

Construction & Connection

3VA2125-8HL36-0AA0 — Construction & Connection
Parameter	Value
Main circuit connection type	double-sided box terminal
Main circuit connector arrangement	Front terminal
Protection class (IP), front	IP40

Accessories & Functions

3VA2125-8HL36-0AA0 — Accessories & Functions
Parameter	Value
Undervoltage release	No
Voltage trigger	No
Trip indicator	No
Communication function	No
Measurement function	No
Motor drive option	Yes
Auxiliary CO contacts	0

Environmental

3VA2125-8HL36-0AA0 — Environmental
Parameter	Value
Operating temperature, max.	70 °C
Operating temperature, min.	-25 °C
Storage temperature, max.	80 °C
Storage temperature, min.	-40 °C

Mechanical

3VA2125-8HL36-0AA0 — Mechanical
Parameter	Value
Mechanical service life (operating cycles), typ.	25 000
Height	181 mm
Width	105 mm
Depth	86 mm
Height (in)	7.13 in
Width (in)	4.13 in
Depth (in)	3.39 in

Product details

SENTRON 3VA2125-8HL36-0AA0 — line-protection MCCB with ETU320 trip unit

The Siemens 3VA2125-8HL36-0AA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection, rated at 25 A continuous current in a 3-pole configuration. It carries an ETU320 electronic trip unit and is rated for an insulation voltage of 800 V.

Breaking capacity by system voltage

The interrupting rating varies with system voltage: 440 kA at 240 V, 330 kA at both 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V. These values define the maximum fault current the breaker can safely clear at each voltage level — critical for selecting the right SCCR for the panel.

Thermal performance and panel integration

The breaker maintains its full 25 A rating across an ambient temperature range of 40 °C to 70 °C — no derating required through typical enclosure temperatures. Dimensions are 181 mm height, 105 mm width, and 86 mm depth, fitting standard panel layouts. Front face protection is IP40.

Frequently asked questions

Where can I buy 3VA2125-8HL36-0AA0 and what is the lead time?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the breaking capacity of this MCCB at 240 V?

At 240 V the interrupting rating is 440 kA, the highest of its rated voltage points. At 415 V and 440 V it is 330 kA, at 500 V it is 220 kA, and at 690 V it is 52.5 kA.