Circuit breaker size S2 for motor protection, Class 20 A-release 28...36 A N-release 520 A screw terminal Standard switching capacity
Product Type: Industrial Automation Component
General
| Article number |
3RV2031-4PB10 |
| product brand name |
SIRIUS |
| product designation |
Circuit breaker |
| design of the product |
For motor protection |
| product type designation |
3RV2 |
General technical data
| Product equipment of circuit breaker for motor protection complete unit with protection device |
Yes |
| size of the circuit-breaker |
S2 |
| size of contactor can be combined company-specific |
S2 |
| product function disconnector functionality |
Yes |
| product extension auxiliary switch |
Yes |
power loss [W] for rated value of the current
| ● at AC in hot operating state |
20 W |
| ● at AC in hot operating state per pole |
6.7 W |
| type of calculation of power loss current-dependent |
quadratic |
| insulation voltage with degree of pollution 3 at AC rated value |
690 V |
| surge voltage resistance rated value |
6 kV |
maximum permissible voltage for protective separation
| ● in networks with ungrounded star point between main and auxiliary circuit |
400 V |
| ● in networks with grounded star point between main and auxiliary circuit |
400 V |
protection class IP
| ● on the front according to IEC 60529 |
IP20 |
| ● on the front |
IP20 |
| ● of the terminal |
IP00 |
| shock resistance according to IEC 60068-2-27 |
25 g / 11 ms Sinus |
mechanical service life (operating cycles)
| ● of the main contacts typical |
50 000 |
| ● of auxiliary contacts typical |
50 000 |
| electrical endurance (operating cycles) typical |
50 000 |
| reference code according to IEC 81346-2 |
Q |
| continuous current rated value |
36 A |
| Substance Prohibitance (day/month/year) |
10/15/2014 |
| SVHC substance name |
Lead CAS-No. 7439-92-1 |
| Net Weight |
1.105 kg |
Ambient conditions
| installation altitude at height above sea level maximum |
2 000 m |
ambient temperature
| ● during operation |
-20 ... +60 °C |
| ● during storage |
-50 ... +80 °C |
| ● during transport |
-50 ... +80 °C |
| temperature compensation |
-20 ... +60 °C |
| relative humidity during operation |
10 ... 95 % |
Main circuit
| number of poles for main current circuit |
3 |
| adjustable current response value current of the current-dependent overload release |
28 ... 36 A |
| type of voltage for main current circuit |
AC |
operating voltage
| ● rated value |
690 V |
| ● rated value |
20 ... 690 V |
| ● at AC-3 rated value maximum |
690 V |
| ● at AC-3e rated value maximum |
690 V |
| operating frequency rated value |
50 ... 60 Hz |
| operational current rated value |
36 A |
operational current
| ● at AC-3 at 400 V rated value |
36 A |
| ● at AC-3e at 400 V rated value |
36 A |
● at AC-3
| — at 230 V rated value |
11 kW |
| — at 400 V rated value |
18.5 kW |
| — at 500 V rated value |
22 kW |
| — at 690 V rated value |
30 kW |
● at AC-3e
| — at 230 V rated value |
11 kW |
| — at 400 V rated value |
18.5 kW |
| — at 500 V rated value |
22 kW |
| — at 690 V rated value |
30 kW |
operating frequency
| ● at AC-3 maximum |
15 1/h |
| ● at AC-3e maximum |
15 1/h |
Auxiliary circuit
| type of voltage for auxiliary and control circuit |
AC/DC |
| number of NC contacts for auxiliary contacts |
0 |
| number of NO contacts for auxiliary contacts |
0 |
| number of CO contacts for auxiliary contacts |
0 |
product function
| ● ground fault detection |
No |
| ● phase failure detection |
Yes |
| trip class |
CLASS 20 |
| design of the overload release |
thermal |
| protection function thermal overload protection (ANSI 49) |
Yes |
maximum short-circuit current breaking capacity (Icu)
| ● at AC at 240 V rated value |
100 kA |
| ● at AC at 400 V rated value |
65 kA |
| ● at AC at 500 V rated value |
10 kA |
| ● at AC at 690 V rated value |
4 kA |
operating short-circuit current breaking capacity (Ics) at AC
| ● at 240 V rated value |
100 kA |
| ● at 400 V rated value |
30 kA |
| ● at 500 V rated value |
5 kA |
| ● at 690 V rated value |
2 kA |
| response value current of instantaneous short-circuit trip unit |
520 A |
full-load current (FLA) for 3-phase AC motor
| ● at 480 V rated value |
36 A |
| ● at 600 V rated value |
36 A |
● for single-phase AC motor
| — at 110/120 V rated value |
3 hp |
| — at 230 V rated value |
7.5 hp |
● for 3-phase AC motor
| — at 200/208 V rated value |
15 hp |
| — at 220/230 V rated value |
15 hp |
| — at 460/480 V rated value |
30 hp |
| — at 575/600 V rated value |
40 hp |
Short-circuit protection
| product function short circuit protection |
Yes |
| design of the short-circuit trip |
magnetic |
design of the fuse link for IT network for short-circuit protection of the main circuit
| ● at 240 V |
none required |
| ● at 400 V |
125 |
| ● at 500 V |
100 |
| ● at 690 V |
80 |
Installation/ mounting/ dimensions
| mounting position |
any |
| fastening method |
screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715 |
| height |
140 mm |
| width |
55 mm |
| depth |
149 mm |
● with side-by-side mounting
| — forwards |
0 mm |
| — backwards |
0 mm |
| — upwards |
50 mm |
| — downwards |
50 mm |
| — at the side |
0 mm |
● for grounded parts
| — forwards |
0 mm |
| — backwards |
0 mm |
| — upwards |
50 mm |
| — at the side |
10 mm |
| — downwards |
50 mm |
● for live parts
| — forwards |
0 mm |
| — backwards |
0 mm |
| — upwards |
50 mm |
| — downwards |
50 mm |
| — at the side |
10 mm |
● for grounded parts at 400 V
| — downwards |
50 mm |
| — upwards |
50 mm |
| — at the side |
10 mm |
● for live parts at 400 V
| — downwards |
50 mm |
| — upwards |
50 mm |
| — at the side |
10 mm |
● for grounded parts at 500 V
| — downwards |
50 mm |
| — upwards |
50 mm |
| — at the side |
10 mm |
● for live parts at 500 V
| — downwards |
50 mm |
| — upwards |
50 mm |
| — at the side |
10 mm |
● for grounded parts at 690 V
| — downwards |
50 mm |
| — upwards |
50 mm |
| — at the side |
10 mm |
● for live parts at 690 V
| — downwards |
50 mm |
| — upwards |
50 mm |
| — at the side |
10 mm |
Connections/ Terminals
| product component removable terminal for auxiliary and control circuit |
No |
type of electrical connection
| ● for main current circuit |
screw-type terminals |
| arrangement of electrical connectors for main current circuit |
Top and bottom |
● for main contacts
| — solid or stranded |
2x (1 ... 25 mm²), 1x (1 ... 35 mm²) |
| — finely stranded with core end processing |
2x (1 ... 16 mm²), 1x (1 ... 25 mm²) |
| ● for AWG cables for main contacts |
2x (18 ... 3), 1x (18 ... 2) |
connectable conductor cross-section for main contacts
| ● solid or stranded |
1 ... 35 mm² |
| ● finely stranded with core end processing |
1 ... 25 mm² |
| AWG number as coded connectable conductor cross section for main contacts |
18 ... 2 |
tightening torque
| ● for main contacts with screw-type terminals |
3 ... 4.5 N·m |
| design of screwdriver shaft |
Diameter 5 to 6 mm |
| size of the screwdriver tip |
Pozidriv size 2 |
design of the thread of the connection screw
Safety related data
| product function suitable for safety function |
Yes |
suitability for use
| ● safety-related switching on |
No |
| ● safety-related switching OFF |
Yes |
| service life maximum |
10 a |
| test wear-related service life necessary |
Yes |
proportion of dangerous failures
| ● with low demand rate according to SN 31920 |
40 % |
| ● with high demand rate according to SN 31920 |
50 % |
| B10 value with high demand rate according to SN 31920 |
5 000 |
| failure rate [FIT] with low demand rate according to SN 31920 |
50 FIT |
ISO 13849
| device type according to ISO 13849-1 |
3 |
| overdimensioning according to ISO 13849-2 necessary |
Yes |
IEC 61508
| safety device type according to IEC 61508-2 |
Type A |
T1 value
| ● for proof test interval or service life according to IEC 61508 |
10 a |
Electrical Safety
| protection class IP on the front according to IEC 60529 |
IP20 |
| touch protection on the front according to IEC 60529 |
finger-safe, for vertical contact from the front |
Display
| display version for switching status |
Handle |
Environmental Product Declaration
| ● global warming potential [CO2 eq] / during manufacturing |
12.8 kg |
| ● global warming potential [CO2 eq] / during sales |
0.477 kg |
| ● global warming potential [CO2 eq] / during operation |
230 kg |
| ● global warming potential [CO2 eq] / after end of life |
-3.4 kg |
| ● global warming potential [CO2 eq] / total |
239.877 kg |
Environment
| Environmental Confirmations |
Yes |
| Siemens EcoTech Profile (SEP) |
Yes |
| EPD Typ II/III (with life cylce assessment) |
Yes |
General Product Approval
| CCC |
Yes |
| UL |
Yes |
| cULus |
Yes |
| KC |
Yes |
| EAC |
Yes |
| EEQCO Scheme-X |
Yes |
| EU declaration of conformity |
Yes |
| UK Declaration of Conformity |
Yes |
Test Certificates
| Special Test Certificate |
Yes |
| Type Test Certificates/Test Report |
Yes |
Maritime application
| ABS (American Bureau of Shipping) |
Yes |
| BV (Bureau Veritas) |
Yes |
| DNV (Det Norske Veritas) |
Yes |
| LR (Lloyds Register) |
Yes |
| PRS (Polski Register of Shipping) |
Yes |
| RINA (Registro Italiano Navale) |
Yes |
other
| Miscellaneous |
Yes |
| Confirmation |
Yes |
| Miscellaneous |
Yes |
| Chinese Quality Checkmark |
Yes |
Railway
| Special Test Certificate |
Yes |
| Confirmation |
Yes |
Characteristic curves
https://curves.simaris.siemens.com/curves/
| last modified: |
5/5/2026 |
| Date8/1/2026 |
Subject to change without notice© Copyright Siemens 2026 |
Applications
This Industrial Automation Component is designed for industrial automation applications, offering reliable performance and compatibility with Siemens automation systems. Suitable for manufacturing, process control, and building automation environments.
