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MR-820 Series Dual Relays, SPDT contacts, 1 module position, track mounted

The MR-821/T Relays provide SPDT contacts which are operated from a 24VDC control input. Single module come complete with track mounting hardware which facilitates installation in standard cabinets.

SKU: MR-821/T Category:
Description

Brand Information
The MR-820 Series Relays provide SPDT contacts which are operated from a 24VDC control input. The input voltages are polarity sensitive and diode protected. Each relay position contains dual independent relays and dual independent red LED’s which indicate when the associated relay coil is energized.

Brand Features
SPDT
24VDC
The input voltages are polarity sensitive and diode protected.
Each relay position contains dual independent relays and dual independent red LED’s which indicate when the associated relay coil is energized.
Relays may be “snapped apart” from a standard 2, 4 and 8 position masters and used independently.
Relays are available with snap track and mounting hardware or swage type spacers. A single MR-821, MR-822, MR-824 or MR-828 is also available mounted in a sturdy NEMA 1 enclosure.

Application
These devices are ideal for Applications where high density relay switching is required. They are suitable for use with HVAC, Temperature Control, Fire Alarm, Security, Energy Management and Lighting Control Systems.

Product Information
The MR-821/T Relays provide SPDT contacts which are operated from a 24VDC control input. Single module come complete with track mounting hardware which facilitates installation in standard cabinets.

Key Features
Single module
SPDT
24VDC
The input voltages are polarity sensitive and diode protected.
Each relay position contains dual independent relays and dual independent red LED’s which indicate when the associated relay coil is energized.
“/T” versions come complete with track mounting hardware which facilitates installation in standard cabinets
“/T” versions are configured for an available optional DIN/“A” series rail mounting clip (TK-CL)

Key Benefits
Designed and Manufactured in the USA.

General
Warranty 18 months

Electrical
Status Indicator – Relay Active Red

Environmental
Humidity (Min) 0% RH
Humidity (Max) 85% RH
Humidity Note no condensation or icing
Humidity 0% to 85% (no condensation or icing)
Operating Temperature (Min) 0°C
Operating Temperature (Max) 49°C
Operating Temperature 0 to 49°C

Mechanical
Weight 0.15lbs
Product Height (Wo/Base) 87.63mm
Product Width 50.8mm
Product Depth 27.178mm

Documentation
MR-821 T DATA.pdf
MR-821 T INSTALL.pdf
Relay Product Catalog & Data Sheet