Siemens Current Monitoring Relay, 2 Phase, SPDT
- RS Stock No.:
 - 213-1221
 - Mfr. Part No.:
 - 3RR2142-1AW30
 - Brand:
 - Siemens
 
Subtotal (1 unit)*
£115.81
(exc. VAT)
£138.97
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- Shipping from 27 November 2025
 
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units  | Per unit  | 
|---|---|
| 1 + | £115.81 | 
*price indicative
- RS Stock No.:
 - 213-1221
 - Mfr. Part No.:
 - 3RR2142-1AW30
 - Brand:
 - Siemens
 
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all  | Attribute | Value | 
|---|---|---|
| Brand | Siemens | |
| Monitoring Application | Current | |
| Electrical Phase | 2 | |
| Contact Configuration | SPDT | |
| Series | 3RR2 | |
| Current Range | 4 → 40A | |
| Terminal Type | Screw | |
| Width | 45mm | |
| Height | 87mm | |
| Minimum Operating Temperature | -25°C | |
| Operating Temperature Range | +60°C | |
| Select all | ||
|---|---|---|
Brand Siemens  | ||
Monitoring Application Current  | ||
Electrical Phase 2  | ||
Contact Configuration SPDT  | ||
Series 3RR2  | ||
Current Range 4 → 40A  | ||
Terminal Type Screw  | ||
Width 45mm  | ||
Height 87mm  | ||
Minimum Operating Temperature -25°C  | ||
Operating Temperature Range +60°C  | ||
- COO (Country of Origin):
 - CZ
 
The Siemens 3RR2142-1AW30 is a  Monitoring relay, can be mounted to Contactor 3RT2.2-phase Supply 24-240 V AC/DC 1 change-over contact Monitoring for Current overshoot and undershoot Phase failure.
Cable break with or without fault buffer ON delay 0-60 s
Noise pulse suppression 0-30 s
It has protection class rating of IP20
Noise pulse suppression 0-30 s
It has protection class rating of IP20
Related links
- Siemens Current Monitoring Relay SPDT
 - Siemens Current Monitoring Relay SPDT, Direct Mount
 - Siemens Current Monitoring Relay SPDT, DIN Rail
 - Siemens Voltage Monitoring Relay SPDT
 - Siemens Temperature Monitoring Relay SPDT
 - Siemens Voltage Monitoring Relay SPDT DIN Rail
 - GIC Frequency Monitoring Relay SPDT, DIN Rail
 - GIC Frequency Monitoring Relay SPDT DIN Rail
 
