Techna Thermal Overloads for Contactors

Techna Brand: Techna

A range of thermal overload relays to fit Techna Ktec contactors.

  • Used for example in motor circuits, the relay will switch off on overload to protect the motor from damage.
  • Relay can be set for manual restart
  • Automatic restart after adequate cool down time
  • Available for current ratings 0.2A to 80A
  • Overload comes complete with 1 normally open and 1 normally closed auxiliary contact.
  • Approvals UL recognised and TUV certified CE and RoHS
Description Image Product Buy Pricing (Ex VAT) Current Rating Type Rated operation power at AC-3, 230 V
Techna OTEC15-00.9 Thermal Overload for Contactor 0.72A to 1.08a
Techna OTEC15-00.9 Thermal Overload for Contactor 0.72A to 1.08a
Standard range
Order code: 28-5312
MPN: OTEC15-00.9

Available to back orderBack-order availability date - 19/10/2026
1+ £22.74
5+ £18.99
Price per unit Ex VAT 		0.72 to 1.08A Overload relay N/A
Techna OTEC15-01.2 Thermal Overload for Contactor 0.96A to 1.44a
Techna OTEC15-01.2 Thermal Overload for Contactor 0.96A to 1.44a
Standard range
Order code: 28-5313
MPN: OTEC15-01.2

Available to back orderBack-order availability date - 19/10/2026
1+ £18.55
Price per unit Ex VAT 		0.96 to 1.44A Overload relay N/A
Techna OTEC15-01.7 Thermal Overload for Contactor 1.36A to 2.04a
Techna OTEC15-01.7 Thermal Overload for Contactor 1.36A to 2.04a
Standard range
Order code: 28-5314
MPN: OTEC15-01.7

Available to back orderBack-order availability date - 19/10/2026
1+ £22.63
5+ £18.88
Price per unit Ex VAT 		1.36 to 2.04A Overload relay N/A
Techna OTEC15-02.1 Thermal Overload for Contactor 1.68A to 2.52a
Techna OTEC15-02.1 Thermal Overload for Contactor 1.68A to 2.52a
Standard range
Order code: 28-5315
MPN: OTEC15-02.1

Available to back orderBack-order availability date - 19/10/2026
1+ £20.98
Price per unit Ex VAT 		1.68 to 2.52A Overload relay N/A
Techna OTEC15-04.4 Thermal Overload for Contactor 3.52A to 5.28a
Techna OTEC15-04.4 Thermal Overload for Contactor 3.52A to 5.28a
Standard range
Order code: 28-5317
MPN: OTEC15-04.4

Available to back orderBack-order availability date - 19/10/2026
1+ £24.38
5+ £21.52
Price per unit Ex VAT 		3.52 to 5.28A Overload relay N/A
Techna OTEC15-06.5 Thermal Overload for Contactor 5.2A to 7.8a
Techna OTEC15-06.5 Thermal Overload for Contactor 5.2A to 7.8a
Standard range
Order code: 28-5318
MPN: OTEC15-06.5

Available to back orderBack-order availability date - 19/10/2026
1+ £22.74
5+ £18.99
Price per unit Ex VAT 		5.2 to 7.8A Overload relay N/A
Techna OTEC15-09 Thermal Overload for Contactor 7.2A to 10.8a
Techna OTEC15-09 Thermal Overload for Contactor 7.2A to 10.8a
Standard range
Order code: 28-5319
MPN: OTEC15-09

Available to back orderBack-order availability date - 19/10/2026
1+ £23.78
5+ £19.80
Price per unit Ex VAT 		7.2 to 10.8A Overload relay N/A
Techna OTEC15-15 Thermal Overload for Contactor 12A to 18a
Techna OTEC15-15 Thermal Overload for Contactor 12A to 18a
Standard range
Order code: 28-5321
MPN: OTEC15-15

Available to back orderBack-order availability date - 19/10/2026
1+ £16.45
Price per unit Ex VAT 		12 to 18A Overload relay N/A
Techna OTEC40-09 Thermal Overload for Contactor 7.2A to 10.8a
Techna OTEC40-09 Thermal Overload for Contactor 7.2A to 10.8a
Standard range
Order code: 28-5326
MPN: OTEC40-09

Available to back orderBack-order availability date - 19/10/2026
1+ £23.27
5+ £19.46
Price per unit Ex VAT 		7.2 to 10.8A Overload relay N/A
Techna OTEC40-15 Thermal Overload for Contactor 12A to 18a
Techna OTEC40-15 Thermal Overload for Contactor 12A to 18a
Standard range
Order code: 28-5328
MPN: OTEC40-15

Available to back orderBack-order availability date - 19/10/2026
1+ £24.86
5+ £21.23
Price per unit Ex VAT 		12 to 18A Overload relay N/A
Techna OTEC40-21 Thermal Overload for Contactor 16.8A to 25.2a
Techna OTEC40-21 Thermal Overload for Contactor 16.8A to 25.2a
Standard range
Order code: 28-5329
MPN: OTEC40-21

Available to back orderBack-order availability date - 19/10/2026
1+ £23.31
5+ £19.47
Price per unit Ex VAT 		16.8 to 25.2A Overload relay N/A
Techna OTEC80-67 Thermal Overload for Contactor 53.6A to 80.4a
Techna OTEC80-67 Thermal Overload for Contactor 53.6A to 80.4a
Standard range
Order code: 28-5340
MPN: OTEC80-67

Available to back orderBack-order availability date - 19/10/2026
1+ £31.73
Price per unit Ex VAT 		53.6 to 80.4A Overload relay N/A

Trustpilot