SIEMENS
Siemens 3RT2038-1AG20 SIRIUS 80A 37kW 110V AC Contactor
Siemens 3RT2038-1AG20 SIRIUS 80A 37kW 110V AC Contactor
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Siemens 3RT2038-1AG20 SIRIUS 80A Power Contactor
| Specification | Verified Product Data |
|---|---|
| Manufacturer | Siemens AG |
| Catalog Number | 3RT2038-1AG20 |
| Product Brand | SIRIUS |
| Product Family | SIRIUS 3RT2 |
| Product Type | AC Power Contactor |
| Utilization Category | AC-3e / AC-3 |
| Main Poles | 3 |
| Main Contacts | 3 Normally Open |
| Auxiliary Contacts | 1 NO + 1 NC |
| Control Coil Voltage | 110V AC |
| Control Coil Frequency | 50/60Hz |
| AC-3 Rated Current @ 400V | 80A |
| AC-3 Rated Motor Power @ 400V | 37kW |
| AC-1 Rated Current @ 400V, 40°C | 90A |
| AC-4 Rated Current @ 400V | 55A |
| AC-3 Rated Current @ 690V | 58A |
| AC-3 Motor Power @ 230V | 22kW |
| AC-3 Motor Power @ 500V | 37kW |
| AC-3 Motor Power @ 690V | 45kW |
| Maximum AC-3 Operating Voltage | 690V AC |
| Rated Insulation Voltage | 690V |
| Rated Impulse Withstand Voltage | 6kV |
| Coil Operating Range @ 50Hz | 0.8–1.1 × Us |
| Coil Operating Range @ 60Hz | 0.85–1.1 × Us |
| Coil Pickup Apparent Power @ 50Hz | 210VA |
| Coil Holding Apparent Power @ 50Hz | 17.2VA |
| Mechanical Service Life | Approx. 10 Million Operations |
| Maximum AC-3 Switching Frequency | 500 Operations/hour |
| Frame Size | S2 |
| Main / Auxiliary Terminal Type | Screw Terminals |
| Coil Terminals | A1 / A2 |
| Auxiliary NO Terminals | 13 / 14 |
| Auxiliary NC Terminals | 21 / 22 |
| Mounting | Screw or 35mm DIN Rail |
| Operating Temperature | −25°C to +60°C |
| Dimensions (W × H × D) | 55 × 114 × 130mm |
| Net Weight | Approx. 0.989kg |
| Country of Origin | Germany |
| EAN / GTIN | 4011209940680 |
| Manufacturer Lifecycle | PM300 — Active Product |
Product Overview
The Siemens 3RT2038-1AG20 is a SIRIUS 3RT2 industrial power contactor designed for switching three-phase motors and compatible electrical loads in industrial control systems. This 3-pole, S2-size contactor is rated for 80A operational current and 37kW motor power at 400V under AC-3e/AC-3 utilization. It uses a 110V AC, 50/60Hz electromagnetic control coil, with separate A1 and A2 terminals, and includes three normally open main power contacts plus one normally open and one normally closed auxiliary contact. The auxiliary terminals are identified as 13/14 (NO) and 21/22 (NC). For AC-1 applications at 400V and 40°C, the rated operational current is 90A; the AC-4 rating at 400V is 55A. These ratings refer to different utilization categories and must not be interchanged. The contactor incorporates screw terminals for power, auxiliary and control connections and supports 35mm DIN rail or screw mounting. Its approximate dimensions are 55 × 114 × 130mm, and its specified operating ambient temperature is −25°C to +60°C. The typical mechanical service life is approximately 10 million operations. The manufacturer currently lists this catalog number as an active product. The supplied actual photographs show 3RT2038-1AG20 on the packaging and contactor body, with the coil voltage and auxiliary contacts matching the official Siemens specifications. Electrical function and remaining mechanical service life have not been independently tested in the supplied evidence. Confirm exact model, control supply, utilization category, motor current, protective device coordination and installation requirements before ordering.
Key Product Features
- 80A AC-3 Power Contactor — Siemens SIRIUS 3RT2 motor contactor rated at 80A at 400V AC under AC-3 utilization.
- 37kW Motor Switching Rating — Designed for motor switching applications with 37kW rated motor power at 400V AC-3.
- 110V AC Control Coil — Electromagnetic operating coil for 110V AC at 50/60Hz.
- 3-Pole Main Contact Design — Three normally open power contacts for compatible motor switching circuits.
- Integrated Auxiliary Contacts — Built-in 1NO + 1NC auxiliary contact arrangement for control and signaling.
- 90A AC-1 Rating — Rated operational current for AC-1 service at 400V and 40°C ambient.
- S2 Frame Size — Compact SIRIUS contactor design suitable for industrial control cabinets.
- Screw Terminal Wiring — Screw-type connections for main, auxiliary and coil circuits.
- Flexible Mounting — Supports screw fastening or 35mm DIN rail installation.
- Extended Mechanical Life — Typical mechanical service life of 10 million switching cycles.
- Industrial Temperature Range — Operating ambient temperature from −25°C to +60°C.
- Actual Product Verification — Supplied photographs show matching 3RT2038-1AG20 labels on the contactor and carton.
Actual Product Verification
In Stock & Available to Order
Siemens 3RT2038-1AG20 is marked in stock according to YINGZHOU inventory information. Actual product and carton photographs identify the same exact Siemens catalog number. This SIRIUS 3RT2 power contactor features a 110V AC 50/60Hz control coil, 80A AC-3 rated current, 37kW motor switching rating at 400V, and built-in 1NO + 1NC auxiliary contacts. It is offered for replacement part procurement, industrial maintenance and project sourcing. Photo identification does not establish successful electrical testing, remaining mechanical service life or authorized distribution status. Please confirm coil voltage, utilization category, protective device coordination, quantity, physical condition, and dispatch arrangements before purchase.
Siemens 3RT2038-1AG20
Contact us for exact-model verification, multiple units and project sourcing. Confirm 110V AC coil voltage, AC-3 80A / 37kW at 400V, 1NO + 1NC auxiliary contacts and installation requirements before ordering.
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