The ABB ASTO-21C is a dedicated protection board engineered to monitor and safeguard ABB drive systems, ensuring stable operation via precise signal detection and voltage compatibility.
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Technical specifications for ASTO-21C
Manufacturer:
ABB
Part Number:
ASTO-21C
Product Family:
ABB Drives
Product Type:
3AUA0000065265
Supply voltage range:
+24 V DC +/- 10%
Current consumption:
40 mA (20 mA/channel)
Supply cable:
A single-shielded twisted pair
Maximum cable length:
300 m
Conductor min. cross section:
0.5 mm2, 20 AWG
Logic levels:
0 < 5 V DC, 1 > 17 V DC
Ambient temperature:
0…50 °C
Relative humidity:
Max. 90%, no condensation allowed
Altitude in operation:
0…2000 m
Weight:
0.09 kg
Estimated shipping dimensions:
14.5 x11x2cm
Tariff Code:
8537101190
Country of origin:
Sweden
Place of shipment:
Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.
The ABB ASTO-21C Protection Board is a fully original, high-performance safety module designed for ABB ACS800 drives and other industrial automation systems. It provides Safe Torque Off (STO) functionality to prevent accidental startup and enhance operator safety in industrial environments.
The board operates with a supply voltage range of +24 V DC ±10%, consuming approximately 40 mA (20 mA per channel). It connects via a single-shielded twisted pair cable, supporting a maximum length of 300 m with a minimum conductor cross-section of 0.5 mm² (20 AWG). Logic levels are clearly defined as “0” < 5 V DC and “1” > 17 V DC, ensuring precise and reliable signaling.
Engineered for industrial environments, the ASTO-21C can function in temperatures from 0 to 50 °C, with relative humidity up to 90% (no condensation allowed), and at altitudes up to 2000 m. Its robust design ensures consistent performance and integration with ABB drive systems, maintaining safe operation under varying environmental conditions.
This protection board is ideal for integrating into ACS800 drive systems to enhance safety compliance, prevent unintended motor operation, and provide long-term reliable protection in industrial automation applications.
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