Siemens 6ES5497-4UA12 Front Connector

This front connector links field wiring to SIMATIC S5 I/O modules. The Siemens 6ES5497-4UA12 provides a reliable termination point for sensors and actuators. You can wire this connector before snapping it onto the module. Its screw-type terminals accept a wide range of wire sizes.

Physical Dimensions and Hardware Layout

The Siemens 6ES5497-4UA12 measures 13.5 cm in overall height. Its width reaches 5.5 cm with a depth of 6.2 cm. This front connector weighs approximately 0.12 kg. A plastic housing provides good insulation and mechanical strength. Twenty screw terminals arrange in two rows of ten. A large labeling strip allows clear wire identification.

Connector Specifications and Contact Details

This connector features 20 screw-type terminals for field wiring. The Siemens 6ES5497-4UA12 uses a 20-pin male interface for module connection. Each terminal accepts one or two wires simultaneously. The connector locks securely to the module with two side latches. A strain relief clamp prevents wire pull-out from terminals.

Parameter	Specification
Product Type	Front connector for I/O modules
Number of Pins	20
Terminal Type	Screw-type (rising cage)
Wire Size (Solid)	0.2 to 2.5 mm² (24 to 14 AWG)
Wire Size (Stranded)	0.2 to 2.5 mm² with ferrule
Wires per Terminal	2 maximum
Screwdriver Type	3.0 mm flat blade
Tightening Torque	0.5 to 0.6 Nm
Dimensions (H x W x D)	135 mm x 55 mm x 62 mm
Weight	0.12 kg (4.2 oz)
Contact Material	Tin-plated brass
Housing Material	Polycarbonate (UL94 V-0)
Rated Voltage	250V AC
Rated Current	1A per contact
Insertion Cycles	50 minimum
Locking Mechanism	Two side latches
Labeling Strip	Included (paper insert)
Strain Relief	Built‑in clamp
Number of Components	1 housing, 20 screws, 20 springs
Operating Temperature	-25°C to +85°C
Protection Class	IP20 when mated

Mechanical Features and Wiring Convenience

You can pre-wire the Siemens 6ES5497-4UA12 away from the control cabinet. This feature reduces downtime during module replacement significantly. The labeling strip holds a pre-printed wire identification card. The strain relief clamp secures all incoming cables firmly. Therefore, vibrations do not loosen the screw terminals over time.

Compatibility and Module Support

This connector works with most SIMATIC S5 I/O modules. The Siemens 6ES5497-4UA12 fits digital and analog input/output modules. Check your module’s manual for specific compatibility. The connector keying prevents incorrect insertion into modules. A plastic coding element matches the connector to the correct slot.

Installation and Wiring Procedure

Strip 6 to 7 mm of insulation from each wire end. Insert the wire into the terminal opening. Tighten the screw until the wire locks firmly. The Siemens 6ES5497-4UA12 requires no special tools for wiring. After completing all connections, snap the connector onto the module. Press both side latches until they click audibly.