Schneider Electric LT4760M7S TeSys LT47 Electronic Overcurrent Relay

Key Features

Technical Specifications

Main Characteristics

Settings & Controls

Electrical Specifications

Physical & Mechanical

Environmental

Applications

The LT4760M7S is versatile and suited for protecting three-phase AC motors in:

• Manufacturing Machinery: Conveyor belts, production line motors

• Pumping Systems: Industrial pumps, water treatment

• HVAC Systems: Compressors, fan motors

• Motor Control Centers (MCCs): Comprehensive motor circuit protection

• Material Handling: Elevators, hoists, automated equipment

Benefits

Availability & Pricing

The LT4760M7S is available from multiple industrial automation suppliers with varying lead times and pricing:

Pricing and availability subject to change. Contact your local Schneider Electric distributor for current stock and volume pricing.

Important Notes

• The LT4760M7S does not have automatic reset capability; manual reset is required after tripping

• For 24 V AC/DC supply variants, refer to model LT4760BS

• For lower current ranges, refer to models LT4730M7S (3-30A, 200-240V AC) or LT4706M7S (0.5-6A)

• This relay uses external current transformers – motor cables pass through separate current transformers (not included)

• Settings can be locked by sealing the transparent cover to prevent tampering

FAQ

Q1: What is the adjustable current range of the LT4760M7S?

A: The LOAD dial allows adjustment from 5 to 60 A. For motor protection, the tripping threshold is effective from 5 to 50 A.

Q2: What supply voltage does this relay require?

A: The LT4760M7S requires a 200...240 V AC auxiliary supply at 50/60 Hz.

Q3: Does the LT4760M7S provide automatic reset?

A: No, this model is manual reset only. Automatic reset is not available for this variant.

Q4: How does the relay protect against phase loss?

A: The relay includes integrated phase loss detection. It will trip if a missing phase condition persists longer than the set O-TIME (0.3-10 seconds).

Q5: What are the three adjustment dials on the relay?

A: The three dials are: LOAD (5-60A, overcurrent level), O-TIME (0.3-10s, acceptable overcurrent duration), and D-TIME (0.5-30s, motor starting duration).

Q6: Does the relay include auxiliary contacts for signalling?

A: Yes, it includes 1 NO + 1 NC auxiliary contacts for connecting to control circuits for fault signalling.

Q7: What do the LED indicators show?

A: The relay has two LEDs: a green LED (Run) indicating normal operation, and a red LED (Trip) indicating a fault condition has occurred.

Q8: Is this relay compatible with Schneider LC1D contactors?

A: Yes, the TeSys LT47 series relays are designed for direct mounting on Schneider LC1D contactors, enabling compact installation and reliable coordination.

Q9: What is the IP rating of the LT4760M7S?

A: The relay has an IP20 degree of protection per IEC 60529 and VDE 0106, suitable for installation inside control cabinets.

Q10: Where can I purchase the LT4760M7S?

A: The LT4760M7S is available through Schneider Electric authorized distributors and industrial automation suppliers globally. Stock availability and pricing vary by region.