3BHB027204R0001 is an ABB power supply unit identified as 3BSM001866-18, providing a 24 V DC output with a nominal current rating of 20 A. It is intended for industrial control and electrical equipment requiring a stable 24 VDC supply from an AC input.
ABB lists 3BSM001866-18 as a 24 VDC / 20 A power supply unit. The technical characteristics correspond to the QUINT-PS/1AC/24DC/20 power supply, a DIN-rail-mounted primary-switched unit with screw connections and industrial protection functions.
For spare-parts identification, 3BHB027204R0001 and 3BSM001866-18 should be retained together, since both references are useful when matching the installed power supply.
Identification
| Item | Details |
|---|---|
| Brand | ABB |
| ABB Ordering Reference | 3BHB027204R0001 |
| Product Reference | 3BSM001866-18 |
| Product Type | Power Supply Unit |
| Output | 24 V DC / 20 A |
| Input Type | 1-phase AC |
| Related Power Supply | QUINT-PS/1AC/24DC/20 |
| Related Manufacturer Item | 2866776 |
| Mounting | DIN rail |
| Connection | Screw connection |
| Technology | Primary-switched power supply |
The ABB reference 3BSM001866-18 is identified by ABB as a 24Vdc / 20A power supply unit. The corresponding technical product documentation for QUINT-PS/1AC/24DC/20 specifies DIN-rail mounting, screw connection and single-phase input.
Electrical Ratings
The unit accepts a broad AC input range and delivers a regulated 24 VDC output.
| Parameter | Specification |
|---|---|
| Nominal Input Voltage | 100–240 V AC |
| AC Input Range | 85–264 V AC |
| DC Input Range | 90–350 V DC |
| AC Frequency | 45–65 Hz |
| Nominal Output Voltage | 24 V DC ±1% |
| Output Voltage Adjustment | 18–29.5 V DC |
| Nominal Output Current | 20 A |
| Nominal Output Power | 480 W |
| POWER BOOST Current | 26 A |
| Static BOOST Current | 26 A |
| SFB Current | 120 A for 12 ms |
| Typical Efficiency | 92% at 120 V AC; 92.7% at 230 V AC |
| Residual Ripple | <30 mVpp |
| Short-Circuit Protection | Yes |
The manufacturer documentation specifies 20 A nominal output at 24 VDC, adjustable output voltage from 18 to 29.5 VDC, and 480 W nominal output power. The temporary POWER BOOST capability reaches 26 A under the specified conditions.
Input Characteristics
The wide input range allows the power supply to operate from common industrial AC supply voltages.
For AC operation, the nominal range is 100–240 VAC, while the specified operating range extends from 85 to 264 VAC. The unit also supports a DC input range of 90–350 VDC. ABB's listed application is the 24 VDC / 20 A power supply function, while the detailed corresponding technical data provides these input characteristics.
Other documented input characteristics include:
- 45–65 Hz AC frequency range
- Less than 20 A inrush current
- Internal 12 A slow-blow input fuse
- Transient surge protection
- Varistor-based protective circuit
- Power factor of approximately 0.89
- Mains buffering time greater than 32 ms at 120 VAC and 230 VAC
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Output Adjustment & Load Reserve
The nominal output is 24 VDC, with an adjustment range from 18 VDC to 29.5 VDC. This allows the output voltage to be adapted to the requirements of the connected DC load within the manufacturer's specified range.
For higher short-duration load requirements, the power supply provides POWER BOOST capability up to 26 A. The SFB function can deliver up to 120 A for 12 ms, allowing suitably rated downstream protective devices to trip rapidly during certain fault conditions.
The unit also supports:
- Parallel connection for redundancy or increased capacity
- Series connection
- Output overvoltage protection
- Short-circuit protection
- Adjustable output voltage
Installation
The power supply is designed for DIN rail mounting, making it suitable for installation inside industrial control cabinets and electrical enclosures.
The connection system uses screw terminals. The documented unit has an IP20 degree of protection and Protection Class I.
| Installation Item | Detail |
|---|---|
| Mounting | DIN rail |
| Connection | Screw connection |
| Protection Rating | IP20 |
| Protection Class | I |
| Net Weight | Approx. 1.7 kg |
| Installation Environment | Industrial control cabinet / electrical enclosure |
Environmental Data
The corresponding technical documentation specifies an operating temperature range of -25°C to +70°C, with output-current derating above 60°C. The start-up range is tested down to -40°C, while storage and transport are specified from -40°C to +85°C.
| Parameter | Value |
|---|---|
| Operating Temperature | -25°C to +70°C |
| Derating Range | 60°C to 70°C |
| Start-Up Temperature | -40°C |
| Storage / Transport | -40°C to +85°C |
| Relative Humidity | ≤95% at 25°C, non-condensing |
| Climatic Class | 3K3 |
| Pollution Degree | 2 |
| Maximum Installation Height | 6000 m |
Protection & Monitoring Features
The power supply incorporates several functions intended for industrial power distribution:
POWER BOOST provides additional current capacity for starting demanding loads.
SFB Technology provides a high short-duration current pulse to enable rapid tripping of downstream circuit breakers.
Preventive function monitoring is designed to indicate critical operating conditions before a fault occurs.
Output voltage adjustment allows the 24 VDC level to be adapted within the specified range.
These functions make the unit more than a basic fixed-output DC supply and are relevant when matching a replacement for an existing industrial control cabinet.
Product Reference Cross-Identification
When searching for this power supply, several identifiers may appear in catalogs:
| Reference | Identification |
|---|---|
| 3BHB027204R0001 | ABB ordering reference |
| 3BSM001866-18 | ABB product reference |
| QUINT-PS/1AC/24DC/20 | Corresponding power supply designation |
| 2866776 | Corresponding manufacturer item number |
The manufacturer documentation for item 2866776 identifies the unit as QUINT-PS/1AC/24DC/20, with 24 VDC / 20 A output.
For purchasing an ABB replacement, 3BHB027204R0001 and 3BSM001866-18 should be treated as the primary ABB identification references.
Alternative Identification Terms
3BHB027204R0001
3BHB027204R0001 ABB
3BHB027204R0001 power supply
ABB 3BHB027204R0001
3BSM001866-18
3BSM001866-18 ABB
3BSM001866-18 power supply
ABB 3BSM001866-18
QUINT-PS/1AC/24DC/20
2866776
24VDC 20A power supply
ABB 24V 20A power supply
FAQ
What is 3BHB027204R0001?
3BHB027204R0001 is an ABB ordering reference for a 24 VDC / 20 A power supply unit.
What is the ABB reference 3BSM001866-18?
3BSM001866-18 is the product reference ABB lists for this 24 VDC / 20 A power supply.
What is the output of 3BHB027204R0001?
The nominal output is 24 VDC at 20 A, corresponding to 480 W nominal output power.
What input voltage does this power supply accept?
The nominal AC input range is 100–240 VAC, with a specified AC operating range of 85–264 VAC. The corresponding technical data also lists 90–350 VDC for DC operation.
Can the output voltage be adjusted?
Yes. The specified adjustment range is 18–29.5 VDC.
What is the maximum POWER BOOST current?
POWER BOOST is specified at 26 A under the stated operating conditions.
How is the unit installed?
It is designed for DIN rail mounting and uses screw connections.
What is the related 2866776 reference?
2866776 is the corresponding QUINT-PS/1AC/24DC/20 manufacturer item number appearing in the detailed technical documentation.
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