Siemens RDJ Wall Mount Room Thermostat 1 Input, 1 Output Relay 3V dc PID Controller

RS Stock No.:: 245-176
Mfr. Part No.:: RDJ100 / S55770-T379
Manufacturer:: Siemens

Siemens RDJ Wall Mount Room Thermostat 1 Input, 1 Output Relay 3V dc PID Controller

Subtotal (1 unit)*

SGD141.50

(exc. GST)

SGD154.24

(inc. GST)

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In Stock

2 unit(s) ready to ship from another location

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Units	Per unit
1 +	SGD141.50

*price indicative

RS Stock No.:: 245-176
Mfr. Part No.:: RDJ100 / S55770-T379
Manufacturer:: Siemens

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Siemens
	Output Type	Relay
	Product Type	Room Thermostat
	Number of Inputs	1
	Number of Outputs	1
	Maximum Current	5A
	Minimum Operating Temperature	0°C
	Maximum Operating Temperature	40°C
	Control Type	PID Controller
	Terminal Type	Screw
	Maximum Supply Voltage	3V dc
	Display Type	LCD
	Maximum Voltage	250V ac
	IP Rating	IP20
	Width	120mm
	Standards/Approvals	Safety class II, RCM Conformity, EU Conformity (CE)
	Length	90mm
	Series	RDJ
	Mount Type	Wall Mount

	Select all
	Brand Siemens
	Output Type Relay
	Product Type Room Thermostat
	Number of Inputs 1
	Number of Outputs 1
	Maximum Current 5A
	Minimum Operating Temperature 0°C
	Maximum Operating Temperature 40°C
	Control Type PID Controller
	Terminal Type Screw
	Maximum Supply Voltage 3V dc
	Display Type LCD
	Maximum Voltage 250V ac
	IP Rating IP20
	Width 120mm
	Standards/Approvals Safety class II, RCM Conformity, EU Conformity (CE)
	Length 90mm
	Series RDJ
	Mount Type Wall Mount

COO (Country of Origin):: CN

Siemens RDJ Series Room Thermostat, 5A Maximum Current, 250V AC Maximum Voltage - RDJ100 / S55770-T379

This room thermostat is a Compact wall-mounted controller designed to regulate ambient temperature in commercial and industrial settings. It presents a clear LCD for setpoint monitoring and uses a control algorithm suited to maintain stable conditions. The device operates on common AC supplies and switches loads via an internal relay, making it appropriate for integration into building automation and equipment cabinets where straightforward temperature control is required.

Features and Benefits:

• PID control ensures steady temperature regulation and reduced cycling
• Relay output supports switching up to 5A for external loads
• LCD provides instant Visual feedback for user adjustments
• Screw terminals enable secure wiring and straightforward installation
• IP20 enclosure permits indoor use in protected locations

Applications

• Suitable for HVAC control in commercial plant rooms
• Ideal for temperature regulation of electrical enclosures
• Used with heating actuators and small fans in commercial spaces
• Can be used for process temperature monitoring in machinery rooms

What input and output arrangements are available for integration?

It provides a single input channel and one relay output to Interface with standard room sensors and control a single switched load.

Which supply voltages can the unit tolerate for normal operation?

The controller accepts supply voltages up to 250V AC and is designed for low-voltage logic at 3V for internal electronics.

How does the device perform across temperature ranges encountered on site?

It is specified for operation between 0 °C and 40 °C to suit typical indoor environments without additional environmental protection.

What mounting and Terminal provisions aid installation on site?

The unit is designed for wall mounting and features screw-type terminals for reliable conductor connection.

What safety and regulatory characteristics are indicated on the product?

It carries Safety Class II designation along with RCM and CE conformity for deployment in compliant installations.