Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Siemens Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A - Reversing Starters with Electronic Overloads
SiemensReversing Starters with Electronic Overloads

Siemens Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A

The SIEMENS NEMA Magnetic Motor Starter: Reversing (SKU 44N859, MPN 22DUB32AF) is a three-phase reversing starter with electronic overloads, featuring a 110/120V AC coil, NEMA Size 1, and a 27 A rating. It includes…

SKU 3G-OTH-41633

Brand
Siemens
Item
Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A
Category
Reversing Starters with Electronic Overloads
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Siemens
Manufacturer Part Number
22DUB32AF
Type
NEMA Size 1, 27 A
Phase
Three
Poles
3
AC Coil
120V
Coil Voltage
110/120V AC
Signaling Features
Pilot Light
Auxiliary Contact Form
1NO
Thermal Units Required
None (Not Applicable to Electronic Overloads)
Terminal Connection Type
Screw Terminals
Auxiliary Contacts Included
1NO
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS NEMA Magnetic Motor Starter: Reversing (SKU 44N859, MPN 22DUB32AF) is a three-phase reversing starter with electronic overloads, featuring a 110/120V AC coil, NEMA Size 1, and a 27 A rating. It includes screw terminals, one normally open auxiliary contact, and a pilot light for signaling. Thermal units are not required as the overload protection is electronic.

Frequently Asked Questions

What is the SIEMENS NEMA Magnetic Motor Starter 22DUB32AF used for?

This reversing starter controls three-phase motors in industrial applications requiring forward and reverse operation, such as conveyors, hoists, and pumps. It includes electronic overload protection and a pilot light for status signaling.

What are the specifications of the SIEMENS 22DUB32AF motor starter?

The SIEMENS 22DUB32AF is a NEMA Size 1 reversing starter rated 27 A with a 110/120V AC coil. It has three poles, screw terminals, one normally open auxiliary contact, and electronic overloads (no thermal units needed). A pilot light is included for signaling.

Where to buy the SIEMENS 22DUB32AF motor starter worldwide?

3G Electric supplies the SIEMENS 22DUB32AF reversing starter worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to select the correct overload protection for the SIEMENS 22DUB32AF?

The SIEMENS 22DUB32AF uses electronic overloads, so no separate thermal units are required. Set the overload relay dial to match the motor's full-load amperage per the nameplate. Always follow NEC guidelines and the manufacturer's wiring diagram for proper installation.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens reversing starters with electronic overloads. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, 120V AC Coil (MPN 22DUA32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
Siemens
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, 120V AC Coil (MPN 22DUA32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, 120V AC Coil (MPN 22DUD32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
Siemens
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, 120V AC Coil (MPN 22DUD32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, 120V AC Coil (MPN 22DUC32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
Siemens
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, 120V AC Coil (MPN 22DUC32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, 120V AC Coil (MPN 22DUE32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
Siemens
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, 120V AC Coil (MPN 22DUE32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 0, 18 A, 120V AC Coil (MPN 22CUB32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
Siemens
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 0, 18 A, 120V AC Coil (MPN 22CUB32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, Electronic Protection (MPN 22DUB32AA). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110-120/220-240V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
Siemens
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, Electronic Protection (MPN 22DUB32AA). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110-120/220-240V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).

More from Siemens

View all Siemens parts →
SIEMENS IEC Magnetic Motor Starter: Reversing, 3 Poles, Electronic Protection, 1.2 A, 110-240V AC/DC (MPN 3RA6250-1BP32). Key specifications — Brand: SIEMENS; Pilot Lights Included: None; Auxiliary Contacts Included: 2NO.
Siemens
SIEMENS IEC Magnetic Motor Starter: Reversing, 3 Poles, Electronic Protection, 1.2 A, 110-240V AC/DC (MPN 3RA6250-1BP32). Key specifications — Brand: SIEMENS; Pilot Lights Included: None; Auxiliary Contacts Included: 2NO.
SIEMENS IEC Magnetic Motor Starter: Non-Reversing, 3 Poles, Electronic Protection, 0.4 A (MPN 3RA6120-1AP32). Key specifications — Brand: SIEMENS; Pilot Lights Included: None; Auxiliary Contacts Included: 1NO/1NC.
Siemens
SIEMENS IEC Magnetic Motor Starter: Non-Reversing, 3 Poles, Electronic Protection, 0.4 A (MPN 3RA6120-1AP32). Key specifications — Brand: SIEMENS; Pilot Lights Included: None; Auxiliary Contacts Included: 1NO/1NC.
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 0, 18 A, 240V AC Coil (MPN 22CUD32AG). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 190-220/220-240V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
Siemens
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 0, 18 A, 240V AC Coil (MPN 22CUD32AG). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 190-220/220-240V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
SIEMENS IEC Magnetic Motor Starter: Non-Reversing, 3 Poles, Electronic Protection, 12 A, 24V AC/DC (MPN 3RA6120-1DB32). Key specifications — Brand: SIEMENS; Pilot Lights Included: None; Auxiliary Contacts Included: 1NO/1NC.
Siemens
SIEMENS IEC Magnetic Motor Starter: Non-Reversing, 3 Poles, Electronic Protection, 12 A, 24V AC/DC (MPN 3RA6120-1DB32). Key specifications — Brand: SIEMENS; Pilot Lights Included: None; Auxiliary Contacts Included: 1NO/1NC.
SIEMENS Compact Magnetic Motor Starter: Reversing, 3 Poles, Electronic Protection, 7 A, 110-230V AC (MPN 3RM12072AA14). Key specifications — Brand: SIEMENS; Pilot Lights Included: LED Status Indicator; Auxiliary Contacts Included: 1NO/1NC.
Siemens
SIEMENS Compact Magnetic Motor Starter: Reversing, 3 Poles, Electronic Protection, 7 A, 110-230V AC (MPN 3RM12072AA14). Key specifications — Brand: SIEMENS; Pilot Lights Included: LED Status Indicator; Auxiliary Contacts Included: 1NO/1NC.
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 0, 18 A, 120V AC Coil (MPN 22CUC32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
Siemens
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 0, 18 A, 120V AC Coil (MPN 22CUC32AF). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 110/120V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, 208V AC Coil (MPN 22DUE32AD). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 208V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
Siemens
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 1, 27 A, 208V AC Coil (MPN 22DUE32AD). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 208V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 0, 18 A, 480V AC Coil (MPN 22CUB32AH). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 380-440/440-480V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).
Siemens
SIEMENS NEMA Magnetic Motor Starter: Reversing, 3 Poles, NEMA Size 0, 18 A, 480V AC Coil (MPN 22CUB32AH). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO; Coil Voltage: 380-440/440-480V AC; Phase: Three; Terminal Connection Type: Screw Terminals; Auxiliary Contacts Included: 1NO; Signaling Features: Pilot Light; Thermal Units Required: None (Not Applicable to Electronic Overloads).