Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

TITUS Switching Relay: Mfr Part # D21-PS - Replacement HVACR Controls, Switches & Thermostats
TITUSReplacement HVACR Controls, Switches & Thermostats

TITUS Switching Relay: Mfr Part # D21-PS

TITUS Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Switching Relay.

SKU 3G-OTH-113363

Also listed as: D21PS · D21 PS

Brand
TITUS
Item
Switching Relay: Mfr Part # D21-PS
Category
Replacement HVACR Controls, Switches & Thermostats
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

TITUS
Manufacturer Part Number
D21-PS
Product Type
Switching Relay

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

TITUS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

TITUS Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Switching Relay.

Frequently Asked Questions

What is the TITUS D21-PS switching relay used for?

The TITUS D21-PS switching relay is used in HVACR systems to control electrical loads such as fans, pumps, or compressors. It provides reliable on/off switching for building automation and climate control applications, ensuring efficient operation of commercial heating, ventilation, and air conditioning equipment.

What are the specifications of the TITUS D21-PS switching relay?

The TITUS D21-PS is a switching relay with manufacturer part number D21-PS. It is designed as a replacement HVACR control component for switching electrical circuits. For detailed electrical ratings and dimensions, consult the product datasheet or contact 3G Electric for technical support.

Where to buy the TITUS D21-PS switching relay worldwide?

You can source the TITUS D21-PS switching relay through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact our team for pricing and lead time on this replacement HVACR control component.

How to install the TITUS D21-PS switching relay?

To install the TITUS D21-PS switching relay, first disconnect power to the HVACR system. Mount the relay securely, connect the control and load wires per the wiring diagram, and verify proper voltage and current ratings. Always follow local electrical codes and consult a qualified technician for safe installation.

Used in

Common applications for TITUS
Commercial HVAC maintenance — TITUS transformers (100066-01) for control system voltage conversion
Industrial air handling — TITUS contactors (10054401) for switching compressor or fan loads
Building automation — TITUS switching relays (D21-PS) for control circuit isolation
Ventilation system repair — TITUS fan relays (10156901) for motor control in exhaust fans
HVACR speed adjustment — TITUS dial fan speed controls (150095-01) for variable fan speed in commercial units
Air distribution replacement — TITUS ceiling diffusers (TMS-3-8-24X24) for supply air in office or industrial spaces

TITUS Products

3G Electric supplies TITUS replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
IO HVAC CONTROLS Thermostat: Mfr Part # TS-41
IO HVAC CONTROLS
IO HVAC CONTROLS Thermostat: Mfr Part # TS-41
NORDYNE Switching Relay: Mfr Part # 621898R
NORDYNE
NORDYNE Switching Relay: Mfr Part # 621898R
DAYTON Switch: Mfr Part # VE1YNW7SG
Dayton
DAYTON Switch: Mfr Part # VE1YNW7SG
TYCO Relay: Mfr Part # T9AP1D52-22-02
TYCO
TYCO Relay: Mfr Part # T9AP1D52-22-02
Switching relay for HVACR systems, used to control the operation of heating or cooling equipment. Functions as a replacement control component for boilers, furnaces, and other climate systems, enabling reliable switching between circuits
TELEDYNE LAARS
Switching relay for HVACR systems, used to control the operation of heating or cooling equipment. Functions as a replacement control component for boilers, furnaces, and other climate systems, enabling reliable switching between circuits
DAYTON Switch: Mfr Part # VE1YNW8SG
Dayton
DAYTON Switch: Mfr Part # VE1YNW8SG

More from TITUS

View all TITUS parts
Reset volume controller for HVAC variable-air-volume (VAV) systems. Used to regulate and reset air volume in VAV boxes, maintaining consistent airflow and temperature control in commercial building environments
TITUS
Reset volume controller for HVAC variable-air-volume (VAV) systems. Used to regulate and reset air volume in VAV boxes, maintaining consistent airflow and temperature control in commercial building environments
TITUS Transformer: Mfr Part # 100066-01
TITUS
TITUS Transformer: Mfr Part # 100066-01
TITUS Contactor: Mfr Part # 10054401
TITUS
TITUS Contactor: Mfr Part # 10054401
TITUS Control Board: Mfr Part # 10303201
TITUS
TITUS Control Board: Mfr Part # 10303201