Details

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TeSys Deca Thermal Overload Relays – Advanced Motor Protection 

Ensure reliable and efficient motor control with TeSys Deca Thermal Overload Relays. These high-performance relays provide critical motor protection, preventing overheating, phase failure, and costly breakdowns.

How It Works:

• Continuous Monitoring: Detects real-time current flow in the motor circuit.
• Overload Detection: Trips the circuit if current levels exceed safe limits for a prolonged period.
• Automatic or Manual Reset: Offers flexible recovery options for uninterrupted operation.
• Instant Circuit Disconnection: Cuts power to prevent motor damage and overheating.
• Electromechanical & Electronic Models Available: Choose the best solution for your system’s needs.
• Compensated Relays with Manual or Automatic
• With Relays Trip Indicator
• For AC or DC

Key Benefits:

✅ Superior Motor Protection: Prevents burnout, ensuring long-term motor efficiency.
✅ Enhanced Safety: Reduces overheating risks and electrical failures.
✅ Cost-Effective Solution: Protects expensive motors with an affordable and reliable relay.
✅ Phase Loss & Imbalance Protection: Shields motors from phase failure, ensuring smooth operation.
 

Specification:
For 3 Pole Reversing Contactors for Motor Control

Relay Setting Range	Fuses to be used with selected relays			For use with contactor LC1	Reference
	aM	gG	BS88
A	A	A	A
Class 10A with connection by screw clamp terminals
0.10…0.16	0.25	2	-	D09…D38	LRD01
0.16…0.25	0.5	2	-	D09…D38	LRD02
0.25…0.40	1	2	-	D09…D38	LRD03
0.40…0.63	1	2	-	D09…D38	LRD04
0.63…1	2	4	-	D09…D38	LRD05
1…1.6	2	4	6	D09…D38	LRD06
1.6…2.5	4	6	10	D09…D38	LRD07
2.5…4	6	10	16	D09…D38	LRD08
4…6	8	16	16	D09…D38	LRD10
5.5…8	12	20	20	D09…D38	LRD12
7…10	12	20	20	D09…D38	LRD14
9…13	16	25	25	D12…D38	LRD16
12…18	20	35	32	D18…D38	LRD21
16…24	25	50	50	D25…D38	LRD22
23…32	40	63	63	D25…D38	LRD32
30…38	50	80	80	D32 and D38	LRD35
Class 10A with connection by Everlink BTR screw connectors
9…3	16	25	25	D40A…D65A	LRD313
12…18	20	32	35	D40A…D65A	LRD318
17…25	25	50	50	D40A…D65A	LRD325
				D80…D95(1)
23…32	40	63	63	D40A…D65A	LRD332
				D80…D95(1)
30…40	50	80	80	D40A…D65A	LRD340
				D80…D95(1)
37…50	40	100	100	D40A…D65A	LRD350
				D80…D95(1)
48…65	50	100	100	D50A…D65A	LRD365
				D80…D95(1)
62…80	80	125	125	D80	LRD380
Class 10A with connection by screw clamp terminals or connectors
55…70	80	125	125	D80…D95	LRD3361
63…80	80	125	125	D80…D95	LRD3363
80…104	100	160	160	D80…D95	LRD3365
80…104	125	200	160	D115…D150	LRD4365
95…120	125	200	200	D115…D150	LRD4367
110…140	160	250	200	D150	LRD4369
80…104	100	160	160	(2)	LRD33656
95…120	125	200	200	(2)	LRD33676
110…140	160	250	200	(2)	LRD33696

Differential Thermal Overload Relays for Use With Fuses or Magnetic Circuit-Breakers GV2 L and GV3 L

Relay Setting Range	Fuses to be used with selected relays			For use with contactor LC1	Reference
	aM	gG	BS88
A	A	A	A
Class 20A(1) with connection by screw clamp terminals
0.40…0.63	1	2	-	D09…D38	LRD04L
0.63…1	2	4	-	D09…D38	LRD05L
1…1.6	2	4	6	D09…D38	LRD06L
1.6…2.5	4	6	10	D09…D38	LRD07L
2.5…4	6	10	16	D09…D38	LRD08L
4…6	8	16	16	D09…D38	LRD10L
5.5…8	12	20	20	D09…D38	LRD12L
7…10	12	20	20	D09…D38	LRD14L
9…13	16	25	25	D12…D38	LRD16L
12…18	20	35	32	D18…D38	LRD21L
17…24	25	50	50	D25…D38	LRD22L
23…32	40	63	63	D25…D38	LRD32L
Class 20A(1) with connection by Everlink BTR screw connectors
17…25	32	50	50	D40A…D65A	LRD325L
				D80…D95(2)
23…32	40	63	63	D40A…D65A	LRD332L
				D80…D95(2)
30…40	50	80	80	D40A…D65A	LRD340L
				D80…D95(2)
37…50	63	100	100	D40A…D65A	LRD350L
				D80…D95(2)
48…65	80	125	125	D50A…D65A	LRD365L
				D80…D95(2)
Class 10A with connection by screw clamp terminals or connectors
55…70	100	125	125	D80…D95	LR2D3361
63…80	100	160	125	D80…D95	LR2D3363

Electronic Thermal Overload Relays For Use with Fuse or Magnetic Circuit Breakers

Relay Setting Range	Fuses to be used with selected relays			For use with contactor LC1	Reference
	aM	gG	BS88
A	A	A	A
Classes 5.10.20.30 selected for direct connection on TeSys D contactors or connection using connectors
0.1…0.5				D09…D38	LR9D01
0.4…2				D09…D38	LR9D02
1.6…8				D09…D38	LR9D08
6.4…32				D09…D38	LR9D32
Classes 5.10.20.30 selectable for connection using connectors
22…110					LR9D110S
Class 10 or  10A with connection using bars or connectors
60…100	100	160		D115…D150	LR9D5367
90…150	160	250		D115…D150	LR9D5369
Class 20  with connection using bars or connectors
60…100	125	160		D115…D150	LR9D5567
90…150	200	250		D115…D150	LR9D5569

TeSys Deca Thermal Overload Relays provide efficient, cost-saving, and reliable motor protection, making them an essential component in industrial and commercial motor control applications. Upgrade today for enhanced safety, durability, and performance!