Siemens RDJ Wall Mount Thermostat, 1 Output Relay 3V dc PID Controller
- RS Stock No.:
- 245-178
- Mfr. Part No.:
- RDJ100RF/SET / S55770-T380
- Manufacturer:
- Siemens
Subtotal (1 unit)*
€173.16
(exc. VAT)
€212.99
(inc. VAT)
In Stock
- Plus 1 unit(s) shipping from 13 July 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | €173.16 |
*price indicative
- RS Stock No.:
- 245-178
- Mfr. Part No.:
- RDJ100RF/SET / S55770-T380
- 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 | Thermostat | |
| Number of Outputs | 1 | |
| Maximum Current | 8A | |
| Minimum Operating Temperature | +5°C | |
| Maximum Operating Temperature | +30°C | |
| Terminal Type | Screw | |
| Control Type | PID Controller | |
| Maximum Supply Voltage | 3V dc | |
| Display Type | LCD | |
| Maximum Voltage | 250V ac | |
| IP Rating | IP20 | |
| Standards/Approvals | CE, EAC, UKCA | |
| Mount Type | Wall Mount | |
| Series | RDJ | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Output Type Relay | ||
Product Type Thermostat | ||
Number of Outputs 1 | ||
Maximum Current 8A | ||
Minimum Operating Temperature +5°C | ||
Maximum Operating Temperature +30°C | ||
Terminal Type Screw | ||
Control Type PID Controller | ||
Maximum Supply Voltage 3V dc | ||
Display Type LCD | ||
Maximum Voltage 250V ac | ||
IP Rating IP20 | ||
Standards/Approvals CE, EAC, UKCA | ||
Mount Type Wall Mount | ||
Series RDJ | ||
- COO (Country of Origin):
- CN
Siemens RDJ Series Thermostat, IP20, Relay Output Type - RDJ100RF/SET / S55770-T380
This thermostat is a wall-mounted control device designed to regulate room temperature within a narrow operational range. It provides on/off switching via a single relay output and presents setpoint and status information on an LCD, making it suitable for building automation and equipment where simple, accurate temperature control is required.
Features and Benefits:
• Relay output rated for 8 A supporting mains switching
• Operates from low-voltage 3V DC supply for safe integration
• PID control algorithm enabling precise temperature regulation
• Screw-terminal connections allowing secure field wiring
• IP20 enclosure suited to protected indoor installations
• Operates from low-voltage 3V DC supply for safe integration
• PID control algorithm enabling precise temperature regulation
• Screw-terminal connections allowing secure field wiring
• IP20 enclosure suited to protected indoor installations
Applications
• Suitable for HVAC zone temperature control in plant rooms
• Used for environmental control in electrical enclosures
• Ideal for integration with building automation panels
• Can be used for temperature regulation in industrial cabinetry
• Used for environmental control in electrical enclosures
• Ideal for integration with building automation panels
• Can be used for temperature regulation in industrial cabinetry
What temperature range can it control reliably?
It is intended to manage environments between +5 °C and +30 °C, matching typical indoor climate requirements.
How is the device mounted and connected on site?
It fits to a wall-mount position and uses screw terminals for the single output and supply connections, simplifying installation.
What standards approvals does it have for regulatory acceptance?
It carries CE, EAC and UKCA approvals indicating conformity with relevant regional requirements.
What operating temperatures will affect its performance limits?
The unit is specified for use up to a maximum ambient of +30 °C, with a lower operational limit of +5 °C.
What output and voltage constraints should installers note?
The relay output is capable of switching up to 250V AC at a maximum current of 8 A, and the control electronics operate from a 3V DC supply.
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