Select the control-contact load
Choose this relay by its control-circuit utilization category and contact logic. Its AC-15 rating is 10 A at 230 V and 3 A at 400 V; those are control-contact ratings, not a three-phase motor power rating.
SIEMENS
3RH2131-1AF00
Siemens 3RH2131-1AF00 SIRIUS Contactor Relay, 3 NO + 1 NC, 110 V AC
Price on request
USDAvailability on request
Estimated 2–8 weeks; confirm by quote
- Condition
- Original brand new
- Warranty
- 12 months
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KEY SPECIFICATIONS
- Coil supply
- 110 V AC, 50/60 Hz
- Contact arrangement
- 3 NO + 1 NC
- Terminal type
- screw terminal
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PRODUCT DATA
Specifications
Check the full model number and every required specification.
| SKU / model | 3RH2131-1AF00 |
|---|---|
| Brand | SIEMENS |
| Series | SIRIUS 3RH2 |
| Contact arrangement | 3 NO + 1 NC |
| Coil supply | 110 V AC, 50/60 Hz |
| Terminal type | screw terminal |
| Frame size | S00 |
| Product function | Contactor relay for control circuits |
| Device dimensions (W × H × D) | 45 × 57.5 × 73 mm |
| Mounting | 35 mm DIN rail or screw mounting |
| Operating ambient temperature | −25 to +60 °C |
| Coil pickup power | 37 VA (AC) |
| Coil holding power | 5.7 VA (AC) |
| AC-15 contact current | 10 A at 230 V; 3 A at 400 V |
| Coil operating range | 0.8–1.1 × Us at 50 Hz; 0.85–1.1 × Us at 60 Hz |
| Manufacturer part number | 3RH2131-1AF00 |
| Net weight | 0.2188 kg |
| Package dimensions (L × W × H) | 82 × 48 × 63 mm |
REFERENCE MATERIAL
Documents
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Description
3RH2131-1AF00 is a Siemens SIRIUS 3RH2 contactor relay with 3 NO + 1 NC contacts. Its 110 V AC, 50/60 Hz coil and screw terminal connections define this ordering configuration. Use it for control-circuit switching, indication or interlocking according to the contact ratings.
Choose the contact logic and coil supply
The highlighted models address the main selection differences. Each link opens a separate product. Matching one specification does not establish interchangeability; use the complete order number and installation requirements.
This product
3RH2131-1AF00
- Contact arrangement: 3 NO + 1 NC
- Coil supply: 110 V AC, 50/60 Hz
- Terminal type: screw terminal
Different coil supply
3RH2131-1BB40
- Contact arrangement: 3 NO + 1 NC
- Different from this product: Coil supply: 24 V DC
- Terminal type: screw terminal
Different coil supply
3RH2131-1AP00
- Contact arrangement: 3 NO + 1 NC
- Different from this product: Coil supply: 230 V AC, 50/60 Hz
- Terminal type: screw terminal
Different contact arrangement, coil supply
3RH2140-1BB40
- Different from this product: Contact arrangement: 4 NO
- Different from this product: Coil supply: 24 V DC
- Terminal type: screw terminal
More configurations to consider
- 3RH2122-1BB40 — 2 NO + 2 NC; 24 V DC; screw terminalView product →
- 3RH2122-1AP00 — 2 NO + 2 NC; 230 V AC, 50/60 Hz; screw terminalView product →
- 3RH2131-2AP00 — 3 NO + 1 NC; 230 V AC, 50/60 Hz; spring-loaded terminalView product →
- 3RH2131-2BB40 — 3 NO + 1 NC; 24 V DC; spring-loaded terminalView product →
- 3RH2140-1AP00 — 4 NO; 230 V AC, 50/60 Hz; screw terminalView product →
- 3RH2140-2BB40 — 4 NO; 24 V DC; spring-loaded terminalView product →
- 3RH2122-2BB40 — 2 NO + 2 NC; 24 V DC; spring-loaded terminalView product →
- 3RH2140-2AP00 — 4 NO; 230 V AC, 50/60 Hz; spring-loaded terminalView product →
Selection and installation checks
Allow for coil pickup as well as holding
The 110 V AC coil operates at both 50 and 60 Hz. Its pickup demand is 37 VA, compared with 5.7 VA while held. Size the control supply for the switching duty and simultaneous pickup of other devices.
Match the mounting and contact numbering
The relay supports screw fixing or a 35 mm DIN rail. For the contact layout, use the model-specific circuit diagram in the datasheet: the single normally closed path and three normally open paths serve different control functions.
Accessories for the actual installation
Questions about this configuration
Does this include motor overload protection?
No overload-protection function is established by this control-relay listing. Select the protective and switching components for their respective circuit duties.
Are the contacts and coil the same electrical rating?
No. 110 V AC, 50/60 Hz specifies the coil. Check the contact rating at the actual switched voltage and utilization category separately.
PLAN YOUR ORDER
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