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Schneider Electric CA2KN31B7 TeSys K Control Relay 3NO 1NC 24 V AC Coil Screw Clamp Auxiliary Contactor

% $-17.71
Schneider Electric CA2KN31B7 TeSys K control relay 3NO+1NC – 24 V AC coil
Schneider Electric CA2KN31B7 TeSys K control relay 3NO+1NC – 24 V AC coil

Schneider Electric CA2KN31B7 TeSys K Control Relay 3NO 1NC 24 V AC Coil Screw Clamp Auxiliary Contactor

Brand: Schneider Electric
Reference No: CA2KN31B7
Catalog No: CA2KN31B7
Tariff Code (HS): 853650
Rated Current: 10
Rated Voltage: 24 V AC
Poles: 3P
Stock: 0
Delivery time: 30 business day(s)
Shipping Origin: Türkiye EXW
$17.71

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  • Description

Schneider Electric's CA2KN31B7 control relay carries 3NO+1NC contacts and a 24 V AC coil within the TeSys K range, rated 10 A conventional thermal current at up to 690 V. Rated for AC-15/DC-13 utilisation categories, it duplicates and interlocks pilot signals in control circuits, terminating on screw clamp terminals for DIN rail or screw-fixed mounting.

Technical Specifications

Reference CA2KN31B7
Brand Schneider Electric
Range TeSys K
Product Type Control Relay
Pole Contact Composition 3NO+1NC
Utilisation Category AC-15 / DC-13
Rated Operational Voltage (Ue) ≤690 V (≤400 Hz)
Control Circuit Voltage (Uc) 24 V AC (AC 50/60 Hz)
Conventional Thermal Current (Ith) 10 A (at 50 °C)
Rated Making Capacity (Irms) 110 A (IEC 60947)
Rated Insulation Voltage (Ui) 690 V (IEC 60947)
Associated Fuse Rating 10 A gG (IEC 60947 / VDE 0660)
Control Circuit Voltage Limits drop-out 0.2–0.75 Uc, operational 0.8–1.15 Uc (≤50 °C)
Maximum Operating Rate 10,000 cyc/h
Inrush / Hold-in Power 30 VA / 4.5 VA (20 °C)
Mounting 35 mm DIN rail or screw-fixed mounting plate
Connections Screw clamp terminals, 1.5–4 mm² solid / 0.75–4 mm² flexible with cable end
Dimensions (H × W × D) 58 × 45 × 57 mm (H × W × D)
Net Weight 0.18 kg
IP Degree of Protection IP2X
Ambient Temperature -25…+50 °C operation, -50…+80 °C storage

Certifications & Standards

  • CE
  • UKCA
  • UL
  • CSA
  • CCC
  • EAC
  • IEC 60947-5-1

Selection Notes

With three make contacts for parallel command signals alongside one break contact for interlocking or indication, the 3NO+1NC variant suits that specific wiring pattern. Specify the 24 V AC coil to match the plant's existing control voltage rather than adding a separate control transformer. The AC coil pulls in within 10–20 ms and draws 30 VA at inrush, dropping to 4.5 VA hold-in, which is the standard figure to size a shared control transformer against when several of these relays switch together.

Technical Details

Short Description
TeSys K control relay, 3NO+1NC, 10 A Ith, 24 V AC coil, screw clamp terminals, DIN rail or panel mount.
Rated Current (Ampere)
10
Rated Voltage (VAC)
24 V AC
Mounting Type
DIN Rail
Protection Type
IP20
Catalog No
CA2KN31B7
Number of Poles
3P
Delivery Date (Days)
30 days
Model Number
CA2K
Tariff Code
853650

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