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1SBL156060R2101 ABB AF12ZB-30-01RT-21 Railway Contactor
ABB AF12ZB-30-01RT-21 is a three-pole AF Small railway contactor rated at 12 A AC-3 at 380–400 V with a 5.5 kW motor rating at 400 V, one normally closed auxiliary contact, ring-tongue terminals and a 24–60 V AC 50/60 Hz or 20–60 V DC electronic coil.
£81.43
Why Choose the ABB AF12ZB-30-01RT-21 Contactor?
The ABB AF12ZB-30-01RT-21 is a compact 3-pole AF contactor for railway rolling stock applications, designed for controlling three-phase motors and switching industrial power circuits. Part of the ABB AF Small / AF12ZB railway contactor range, it combines ABB AF electronic coil technology with ring-tongue terminals and a compact block-type construction.
The AF12ZB-30-01RT-21 provides 3 normally open main contacts and 1 built-in normally closed auxiliary contact. It has an AC-3 rated operational current of 12 A at 380–400 V and can control motors up to 5.5 kW at 400 V AC-3, while its AC-1 rating reaches 28 A at 690 V.
This exact configuration features a wide-range electronic coil accepting 24–60 V AC at 50/60 Hz or 20–60 V DC. Integrated surge protection, ring-tongue terminals and suitability for railway rolling stock environments make the AF12ZB-30-01RT-21 particularly useful for compact traction auxiliary, machinery and power-switching installations.
Key Advantages
- Compact 3-pole AF contactor designed for railway rolling stock applications.
- 12 A AC-3 rating at 380–400 V for motor switching.
- Controls motors up to 5.5 kW at 400 V AC-3.
- Wide control range of 24–60 V AC 50/60 Hz and 20–60 V DC.
- Integrated surge protection helps simplify control circuit design.
- Ring-tongue terminals provide secure connections for demanding installations.
Key Features
- ABB AF12ZB railway contactor from the AF Small range.
- 3 normally open main contacts.
- 1 normally closed built-in auxiliary contact.
- 12 A AC-3 rated operational current at 380–400 V.
- 5.5 kW motor rating at 400 V AC-3.
- 28 A AC-1 rating at 690 V.
- 24–60 V AC 50/60 Hz / 20–60 V DC electronic coil.
- Main circuit operational voltage up to 690 V.
- Ring-tongue terminals for main and control connections.
- Designed to meet demanding railway rolling stock requirements for shock, vibration, fire and smoke behaviour.
Reliable Motor Control for Railway and Industrial Applications
Contactors provide electrically controlled switching for motors and power loads, allowing equipment to be operated through control systems without manually switching the main power circuit. The ABB AF12ZB-30-01RT-21 uses three normally open main poles for load switching and includes one normally closed auxiliary contact for signalling, interlocking and control functions.
ABB AF electronic coil technology allows this contactor to accommodate a broad control-voltage range and large voltage variations. The AF12ZB railway design also addresses demanding rolling stock requirements, including shock and vibration resistance and applicable fire and smoke performance requirements, while retaining a compact format suitable for space-constrained electrical assemblies.
Typical Applications
- Railway rolling stock electrical systems.
- Three-phase motor starting and switching.
- Train auxiliary equipment and machinery.
- Industrial power circuit switching.
- Compact electrical control panels.
- Automation, interlocking and motor control systems.
Technical Specifications
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| Terminal Type | Ring tongue | |
|---|---|---|
| Series | AF Small / AF12ZB Railway Contactors | |
| ABB order code | 1SBL156060R2101 | |
| Product type | 3-pole contactor | |
| Main contacts | 3 N.O. | |
| Built-in auxiliary contacts | 1 N.C. | |
| Rated operational current AC-3 | 12 A at 380–400 V | |
| Rated motor power AC-3 | 5.5 kW at 380–400 V | |
| Rated operational current AC-1 | 28 A at 690 V, 40 °C | |
| Control voltage AC | 24–60 V AC, 50 / 60 Hz | |
| Control voltage DC | 20–60 V DC | |
| Main circuit operational voltage | up to 690 V | |
| Rated insulation voltage | 690 V | |
| Terminal type | Ring-tongue terminals | |
| Maximum operating altitude | 3000 m | |
| Dimensions (H × W × D) | 86 × 45 × 77 mm | |
| Net weight | approx. 0.32 kg |
Frequently Asked Questions
What is the ABB AF12ZB-30-01RT-21 used for?
The AF12ZB-30-01RT-21 is a 3-pole railway contactor designed for controlling three-phase motors and switching compatible power circuits in rolling stock and other demanding control applications.
What control voltage does the AF12ZB-30-01RT-21 accept?
The electronic coil accepts 24–60 V AC at 50/60 Hz and 20–60 V DC.
What is the AC-3 current rating of the AF12ZB-30-01RT-21?
The contactor has an AC-3 rated operational current of 12 A at 380–400 V.
What motor power can the ABB AF12ZB-30-01RT-21 control?
The AF12ZB-30-01RT-21 is rated to control motors up to 5.5 kW at 400 V AC-3.
What auxiliary contact and terminal arrangement does this contactor have?
The AF12ZB-30-01RT-21 includes 1 normally closed built-in auxiliary contact and uses ring-tongue terminals.
Trusted by Railway and Industrial Control Professionals Worldwide
ABB AF contactors are used in motor control and power-switching systems across demanding industrial and transportation applications, with AF railway variants engineered to support the environmental, electrical and installation requirements encountered in rolling stock equipment.
