Article number | 3RU2126-4EJ0 | 3RU2126-4EB0 | |
Overload relay 27...32 A Thermal For motor protection Size S0, Class 10 Contactor mounting Main circuit: Ring cable lug Auxiliary circuit: ring cable lug Manual-Automatic-Reset | Overload relay 27...32 A Thermal For motor protection Size S0, Class 10 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset | ||
product brand name | SIRIUS | ||
product designation | thermal overload relay | ||
product type designation | 3RU2 | ||
General technical data | |||
size of overload relay | S0 | ||
size of contactor can be combined company-specific | S0 | ||
power loss [W] for rated value of the current at AC in hot operating state | 9.6 W | ||
● per pole | 3.2 W | ||
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 auxiliary and auxiliary circuit | 440 V | ||
● in networks with grounded star point between auxiliary and auxiliary circuit | 440 V | ||
● in networks with ungrounded star point between main and auxiliary circuit | 440 V | ||
● in networks with grounded star point between main and auxiliary circuit | 440 V | ||
shock resistance according to IEC 60068-2-27 | 8g / 11 ms | ||
reference code according to IEC 81346-2 | F | ||
Substance Prohibitance (Date) | 10/01/2009 | ||
SVHC substance name |
Lead - 7439-92-1
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Weight | 0.207 kg | 0.21 kg | |
Ambient conditions | |||
installation altitude at height above sea level maximum | 2 000 m | ||
ambient temperature | |||
● during operation | -40 ... +70 °C | ||
● during storage | -55 ... +80 °C | ||
● during transport | -55 ... +80 °C | ||
temperature compensation | -40 ... +60 °C | ||
relative humidity during operation | 10 ... 95 % | ||
Environmental footprint | |||
Global Warming Potential [CO2 eq] total | 56.6 kg | ||
Global Warming Potential [CO2 eq] during manufacturing | 1.21 kg | ||
global warming potential [CO2 eq] during sales | 0.047 kg | ||
Global Warming Potential [CO2 eq] during operation | 55.4 kg | ||
Global Warming Potential [CO2 eq] after end of life | -0.027 kg | ||
Main circuit | |||
number of poles for main current circuit | 3 | ||
adjustable current response value current of the current-dependent overload release | 27 ... 32 A | ||
operating voltage | |||
● rated value | 690 V | ||
● at AC-3e rated value maximum | 690 V | ||
operating frequency rated value | 50 ... 60 Hz | ||
operational current rated value | 32 A | ||
operational current at AC-3e at 400 V rated value | 32 A | ||
operating power | |||
● at AC-3 | |||
— at 400 V rated value | 15 kW | ||
— at 500 V rated value | 18.5 kW | ||
— at 690 V rated value | 30 kW | ||
● at AC-3e | |||
— at 400 V rated value | 15 kW | ||
— at 500 V rated value | 18.5 kW | ||
— at 690 V rated value | 30 kW | ||
Auxiliary circuit | |||
design of the auxiliary switch | integrated | ||
number of NC contacts for auxiliary contacts | 1 | ||
● note | for contactor disconnection | ||
number of NO contacts for auxiliary contacts | 1 | ||
● note | for message "Tripped" | ||
number of CO contacts for auxiliary contacts | 0 | ||
operational current of auxiliary contacts at AC-15 | |||
● at 24 V | 3 A | ||
● at 110 V | 3 A | ||
● at 120 V | 3 A | ||
● at 125 V | 3 A | ||
● at 230 V | 2 A | ||
● at 400 V | 1 A | ||
● at 690 V | 0.75 A | ||
operational current of auxiliary contacts at DC-13 | |||
● at 24 V | 2 A | ||
● at 60 V | 0.3 A | ||
● at 110 V | 0.22 A | ||
● at 125 V | 0.22 A | ||
● at 220 V | 0.11 A | ||
contact rating of auxiliary contacts according to UL | B600 / R300 | ||
Protective and monitoring functions | |||
trip class | CLASS 10 | ||
design of the overload release | thermal | ||
UL/CSA ratings | |||
full-load current (FLA) for 3-phase AC motor | |||
● at 480 V rated value | 32 A | ||
● at 600 V rated value | 32 A | ||
Short-circuit protection | |||
design of the fuse link | |||
● for short-circuit protection of the auxiliary switch required | fuse gG: 6 A, quick: 10 A | ||
Installation/ mounting/ dimensions | |||
mounting position | any | ||
fastening method | Contactor mounting | ||
height | 85 mm | ||
width | 45 mm | ||
depth | 85 mm | ||
Connections/ Terminals | |||
product component removable terminal for auxiliary and control circuit | No | ||
type of electrical connection | |||
● for main current circuit | Ring cable lug connection | screw-type terminals | |
● for auxiliary and control circuit | ring terminal lug connection | screw-type terminals | |
arrangement of electrical connectors for main current circuit | Top and bottom | ||
type of connectable conductor cross-sections | |||
● for main contacts | |||
— solid or stranded | 2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²) | ||
— finely stranded with core end processing | 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm² | ||
● for AWG cables for main contacts | 2x (16 ... 12), 2x (14 ... 8) | ||
type of connectable conductor cross-sections | |||
● for auxiliary contacts | |||
— solid or stranded | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) | ||
— finely stranded with core end processing | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) | ||
● for AWG cables for auxiliary contacts | 2x (20 ... 16), 2x (18 ... 14) | ||
tightening torque | |||
● for main contacts for ring cable lug | 2.5 ... 2 N·m | ||
● for auxiliary contacts for ring cable lug | 0.8 ... 1.2 N·m | ||
outer diameter of the usable ring cable lug maximum | 7.5 m | ||
tightening torque | |||
● for main contacts with screw-type terminals | 2 ... 2.5 N·m | ||
● for auxiliary contacts with screw-type terminals | 0.8 ... 1.2 N·m | ||
design of screwdriver shaft | Diameter 5 ... 6 mm | ||
size of the screwdriver tip | Pozidriv PZ 2 | ||
design of the thread of the connection screw | |||
● for main contacts | M4 | ||
● of the auxiliary and control contacts | M3 | ||
Safety related data | |||
failure rate [FIT] with low demand rate according to SN 31920 | 50 FIT | ||
MTTF with high demand rate | 2 280 a | ||
IEC 61508 | |||
T1 value | |||
● for proof test interval or service life according to IEC 61508 | 20 a | ||
Electrical Safety | |||
protection class IP on the front according to IEC 60529 | IP00 | IP20 | |
touch protection on the front according to IEC 60529 | finger-safe, for vertical contact from the front | ||
Display | |||
display version for switching status | Slide switch | ||
Approvals Certificates | |||
General Product Approval | |||
CCC | Yes | Yes | |
UK Declaration of Conformity | Yes | Yes | |
EU declaration of conformity | Yes | Yes | |
Confirmation | Yes | Yes | |
UL | Yes | Yes | |
EAC | Yes | Yes | |
For use in hazardous locations | |||
IECEx | Yes | Yes | |
ATEX | Yes | Yes | |
Miscellaneous | Yes | Yes | |
Test Certificates | |||
Special Test Certificate | Yes | Yes | |
Type Test Certificates/Test Report | Yes | Yes | |
Marine / Shipping | |||
ABS (American Bureau of Shipping) | Yes | Yes | |
BV (Bureau Veritas) | Yes | Yes | |
DNV (Det Norske Veritas) | Yes | Yes | |
LR (Lloyds Register) | Yes | Yes | |
PRS (Polski Register of Shipping) | Yes | Yes | |
RINA (Registro Italiano Navale) | Yes | Yes | |
RMRS (Russian Maritime Register) | Yes | Yes | |
other | |||
Confirmation | Yes | Yes | |
Railway | |||
Special Test Certificate | Yes | Yes | |
Environment | |||
Environmental Confirmations | Yes | Yes | |
Further information | |||
Information on the packaging
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Information- and Downloadcenter (Catalogs, Brochures,…)
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Industry Mall (Online ordering system)
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Cax online generator
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Service&Support (Manuals, Certificates, Characteristics, FAQs,...)
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Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)
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Characteristic: Tripping characteristics, I²t, Let-through current
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Further characteristics (e.g. electrical endurance, switching frequency)
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last modified: | 11/9/2024 | ||
Date 11/10/2024 |
Subject to change without notice © Copyright Siemens 2024 |