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Siemens S2 Motor Circuit Breaker

This document provides specifications for a SIRIUS circuit breaker for motor protection rated for Class 10, with an adjustable release of 28-40A and a maximum short circuit rating of 520A. Key features include screw terminals, IP20 protection, operating temperatures from -50°C to +60°C, and mounting on a 35mm DIN rail. It can disconnect circuits up to 18.5kW at 400V AC and has auxiliary contacts for monitoring.

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Shafique Abdi
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452 views3 pages

Siemens S2 Motor Circuit Breaker

This document provides specifications for a SIRIUS circuit breaker for motor protection rated for Class 10, with an adjustable release of 28-40A and a maximum short circuit rating of 520A. Key features include screw terminals, IP20 protection, operating temperatures from -50°C to +60°C, and mounting on a 35mm DIN rail. It can disconnect circuits up to 18.5kW at 400V AC and has auxiliary contacts for monitoring.

Uploaded by

Shafique Abdi
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Reference: 3RV1031-4FA10-0BA0

CIRCUIT-BREAKER SIZE S2. FOR MOTOR


PROTECTION, CLASS 10, A-REL. 28...40A,
N-REL. 520A, SCREW TERMINAL,
STANDARD SWITCHING CAPACITY

Buy it at Electric Automation Network

product brand name SIRIUS

Product designation circuit breaker

Design of the product for motor protection

General technical data:

Product extension

Auxiliary switch Yes

Power loss [W] total typical 20 W

Surge voltage resistance rated value 6 000 V

Protection class IP

on the front IP20

Shock resistance 25g / 11 ms

Mechanical service life (switching cycles)

of the main contacts typical 500

Ambient conditions:

Installation altitude at height above sea level maximum 2 000 m

Ambient temperature

during operation -50 ... +60 °C

during storage -50 ... +80 °C

during transport -50 ... +80 °C

Main circuit:
Adjustable pick-up value current of the current-
28 ... 40 A
dependent overload release

Operating voltage

rated value 690 V

at AC-3 rated value maximum 690 V

Operating current

at AC-3

— at 400 V rated value 40 A

Operating power

at AC-3

— at 400 V rated value 18.5 kW

Operating frequency

at AC-3 maximum 15 1/h

Auxiliary circuit:

Number of CO contacts

for auxiliary contacts 0

Protective and monitoring functions:

Trip class CLASS 10

Maximum short-circuit current breaking capacity (Icu)

at AC at 240 V rated value 100 kA

at AC at 400 V rated value 50 kA

at AC at 500 V rated value 10 kA

at AC at 690 V rated value 4 kA

Short-circuit protection

Design of the overcurrent release and short-circuit


thermomagnetic
release

Installation/ mounting/ dimensions:

Mounting position any

screw and snap-on mounting onto 35 mm standard


Mounting type
mounting rail according to DIN EN 50022

Height 140 mm

Witd> 55 mm

Depth 149 mm

Required spacing

with side-by-side mounting

— Backwards 0 mm

— at the side 0 mm

Connections/Terminals:

Product function
removable terminal for auxiliary and control circuit No

Type of electrical connection

for main current circuit screw-type terminals with box terminals

for auxiliary and control current circuit screw-type terminals

Arrangement of electrical connectors for main current


front side
circuit

Type of connectable conductor cross-sections

for main contacts

— solid 2x (0.75 ... 16 mm²)

— stranded 2x (0.75 ... 25 mm²), 1x (0.75 … 35 mm²)

— finely stranded with core end processing 2x (0.75 ... 16 mm²), 0.75 ... 25 mm²

at AWG conductors for main contacts 2x (18 ... 2), 1x (18 ... 2)

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