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Siemens 3RT2028-1AL20
Brand:
Series:
3RT2
Main Contacts:
3NO
Control Circuit:
AC 50/60Hz
Control Coil Voltage:
230VAC
Auxiliary Contacts:
1NO+1NC
Rated Current:
38A
Poles:
3P
Rated Voltage:
400VAC
Model:
3RT2028-1AL20
Order Number:
3RT20281AL20
Description:
Siemens AC contactor 3RT2028-1AL20, auxiliary contact 1NO+1NC, pole number 3P, 38A, control circuit AC 50/60Hz, main contact 3NO, 400VAC
Product parameters
| Product attributes | Attribute value | Filter product attributes |
|---|---|---|
| Brand： | Siemens | |
| Series： | 3RT2 | |
| Main Contacts： | 3NO | |
| Control Circuit： | AC 50/60Hz | |
| Control Coil Voltage： | 230VAC | |
| Auxiliary Contacts： | 1NO+1NC | |
| Rated Current： | 38A | |
| Poles： | 3P | |
| Rated Voltage： | 400VAC |
Products with the same attribute : 0
Show details
Series Overview
Series Overview
Standards
- IEC 60947 - 1, EN 60947 - 1
- IEC 60947 - 4 - 1, EN 60947 - 4 - 1
- IEC 60947 - 5 - 1, EN 60947 - 5 - 1 (auxiliary contacts)
- The 3RT2 contactors have passed climatic testing and are suitable for any climatic conditions worldwide.
- When the environment of equipment application is different from the standard industrial environment (specified in EN 60721 - 3 - 3), it is necessary to consider the impact of the environment on the product reliability and service life, and take corresponding protective measures.
- The 3RT2 contactors have the "finger protection" function specified in EN 50274.
Adding Auxiliary Contacts
- The S00 - sized contactors are integrated with 1 auxiliary contact (1NO or 1NC) in themselves.
- The S0, S2, and S3 - sized contactors are integrated with 2 auxiliary contacts (1NO + 1NC) in themselves.
- All - sized contactors can be further equipped with detachable auxiliary contact blocks.
Contact Reliability
- When switching under the conditions that the voltage does not exceed 110 V or the current does not exceed 100 mA, the auxiliary contacts on the 3RT2 contactors or the 3RH2 intermediate relays have extremely high reliability.
- These contacts also meet the requirements for use in solid - state circuits, with a minimum closing current of 1 mA at 17 V voltage.
Motor Reference Power
- The motor power mentioned in the sample is the reference motor shaft output power (according to the nameplate).
Rated Control Voltage
- All contactors have models for DC (direct current) or AC (alternating current) operation.
Surge Suppression
- The 3RT2 contactors can provide four types of surge suppressors: RC (resistance - capacitance absorption), varistors, suppression diodes, and diode combinations (Zener diodes combined with diodes), for suppressing coil surges.
Notes
- Using surge suppressors to suppress the over - voltage of the coil will cause the opening delay of the normally open contacts (NO) of the contactors and the closing delay of the normally closed contacts (NC) (the suppression diodes will increase the delay by 6 to 10 times, the diode combinations will increase the delay by 2 to 6 times, and the varistors will increase the delay by 2 to 5 ms).
Rachel
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