Siemens 6ES5776-7LA12 Power Output Module

The 6ES5776-7LA12 provides high-power relay outputs for Siemens SIMATIC S5 systems. This module switches AC and DC loads directly from your control logic. Its rectangular frame measures 232 millimeters in width. The module height reaches 210 millimeters exactly. Depth stays at 155 millimeters. You will find this unit weighs approximately 1.15 kilograms. Therefore, installation requires sliding the unit into a standard S5 rack slot. One 20-pin removable terminal block handles all field wiring connections.

Physical Layout and Connectors

The terminal block accepts wires up to 14 AWG gauge. Each channel uses two terminals for load and common connections. A green LED illuminates when the corresponding relay activates. Two guide rails secure the module firmly in the rack. You can remove the terminal block without disconnecting the module from the backplane.

Technical Specifications

Parameter	Specification
Module Width	232 mm
Module Height	210 mm
Module Depth	155 mm
Unit Weight	1.15 kg
Output Channels	8 (relay, Form A)
Terminal Block	1 x 20-pin removable (14 AWG)
Component Total	156 discrete parts
Contact Rating	5A at 250V AC / 30V DC
Max Switching Power	1250 VA / 150 W
Coil Voltage	24V DC
Response Time	10 ms (on/off)
Mechanical Life	20 million operations
Electrical Life	100,000 operations at rated load
Internal Energy Storage	330 µF capacitor bank
Operating Temperature	0°C to +55°C

Internal Design and Energy Storage

The 6ES5776-7LA12 contains exactly 156 discrete components onboard. A 330 microfarad capacitor bank filters the internal logic supply voltage. Eight mechanical relays perform the actual output switching functions. Each relay includes a flyback diode for inductive load protection. Individual optocouplers isolate the logic side from relay coils. The module also includes LED drivers for the 8 status indicators.

Operational Performance

This power output module switches loads up to 5 amperes per channel. It handles both AC and DC voltages without additional components. Moreover, the module provides mechanical isolation between channels. You can connect motors, heaters, solenoids, or lighting directly. The unit reports output status back to the processor for monitoring. Eight green LEDs show real-time relay states at a glance. Consequently, you achieve reliable high-power switching for industrial equipment. Siemens designed this module for SIMATIC S5 automation platforms. Its rugged construction handles frequent switching operations.

In summary, the 6ES5776-7LA12 delivers robust power output capability. Use this module for motor control or heating applications. It provides 5A relay contacts for demanding loads. Order this power output module for your Siemens S5 system.