Liebert LIQUI-TECT LT300, LIQUI-TECT LT410 Specifications

Product Specification Sheet page 1 11/02 (Rev. 0)

LIQUI-TECT® 410

Point Leak Detection Sensor

Description

The Liqui-tect 410
(LT410) provides a
single-point detection
of leaks. The point
detection sensor has
two gold-plated
sensing probes to
prevent corrosion
resistance and to
provide accurate
readings. The LT410
constantly monitors
points for leaks,
internal faults and power failures and warns of any
abnormal conditions. Mounting brackets allow for
sensor height adjustment and leveling.

The LT410 is the ideal solution for sensing leaks under
a raised computer floor or air conditioning drip pans.
Two independent outputs provide added flexibility
with the capacity to signal both a local alarm panel
and a remote building management system or external
equipment, such as motorized water shut-off valves.

The LT410 is also ideally suited for the following:

Placement on Subfloor

Under Cooling Support Equipment

Specifications

Dimensions-Top, Front & Side Views

Wiring Interconnections

Ordering Information

Applications Locations

• Glycol, Chilled
Water Cooling

• Humidification
Feed Water Piping

• Condensate Pumps
and Drains

• Unit and Ceiling
Auxiliary Drip Pans

• Overhead Piping
Troughs

• Large-Scale Network Control
Centers

• Data Centers

• Server Rooms - Closets

• Unattended Remote Shelters

• Mechanical Equipment Rooms

• Sensitive Areas With
Overhead Piping

• Industrial Process Control
Rooms

* Output connections to external alarm monitoring panels

such as the Liebert contact closure alarm panels

Leak detection
zone (directly
beneath unit)

To a Liebert

environmental

unit and

an optional*

monitoring

panel

To e x tern al
power
supply or
directly
from
unit

LT4 10

Liqui-tect 410 Sensor

Power requirements 24 VAC 100 mA, 50/60 Hz, 3 VA (max.)
Dimensions

W x D x H

6.35" x 2.25" x 4.46"

(161.2 mm x 57.2 mm x 113.2 mm)
Weight (assembled) 2.0 lbs (0.9 kg)
Metal enclosure NEMA 1, IP 30

Environmental Conditions

Operating temperature 50°F to 104°F (10°C to 40°C)

Operating humidity

10% to 95% relative humidity

(non-condensing)
Operating altitude 0 to 10,000 ft (0 to 3,048 m)

Output Relays

Contact rating 2 Form-C; 3 A rating at 24 VAC

Agency Listings

UL UL916
C-UL C22.2, No. 205-M1983
CE Yes
FCC Compliance 47 CFR, Part 15

Red Wires Orange Wires Yellow Wires

24 V, AC/DC

@0.10A, 50-60 Hz, DC

Class 2 Circuit Only

Alarm Contact Rating

24 VAC @ 3A

Class 2 Circuit Only

Alarm Contact Rating

24 VAC @ 3A

Class 2 Circuit Only

Product
Number

Quantity Description

LT410 Point Leak Detection Sensor

5.85"

(148.5mm)

TOP VIEW

Form-C relay
outputs &
power wiring
connection

4.46"

(113.2mm)

FRONT VIEW

Adjustable
probe height

0.0–0.5"
(0.0–12.7mm)

2.25"

(57.2mm)

SIDE VIEW

6.35"

(161.2mm)

Shipping weight: 2 Ibs (0.9 kg)
Mounting holes: #8 screws

Power

Power

1-NO

1-NC

1-COM

2-NO

2-NC

2-COM

Gold-plated
probes

Height adjustable
0-0.5" (0-12.7mm)

Product Specification Sheet page 2 11/02 (Rev. 0)

Power Wiring

The LT410 is rated for 24 VAC, 50/60 Hz and

0.10 amp.

Figure 1 24V from Liebert environmental units to LT410

Figure 2 24V from transformer to LT410

Wiring to Auxiliary Alarm Panels

The LT410 has two Form-C dry contact alarm out­put contacts: orange wires (1) and yellow wires (2).
Each contact is rated for 24 VAC at 3 amp.

Figure 3 LT410 to Liebert environmental units

Figure 4 LT410 to Liebert contact monitor panel

Power Wiring

24V from Liebert Environmental Unit to LT460

Liebert Deluxe Sys/3,
Challenger, Himod or
MM2 (8 Ton)

TB1

T5

(24V)

G5

(Ground)

LT460

TB1

TB1-1

TB1-2

LT460

24V from Transformer to LT460

Liebert MM2 (1 to 5 Ton) LT460

TB1

TB1-1

TB1-2

4

V transformer of
ere are no

ted terminal

t

ions)

(24V)

(Ground)

From 24V

transformer*

Red

Red

Red wires

Liebert Mini-Mate2

(1 to 5 ton)

LT410

* Requires a 24V external transformer (there are

no designated terminal connections on the unit)

Liebert Deluxe Sys/3,
Challenger, Himod or
MM2 (8 Ton)

TB1

T5

(24V)

G5

(Ground)

LT460

TB1

TB1-1

TB1-2

Transformer

LT460

TB1

TB1-1

TB1-2

From 24V
transformer

24V from Transformer to LT460

Liebert MM2 (1 to 5 Ton) LT460

TB1

TB1-1

TB1-2

V transformer of
ere are no

ted terminal

t

ions)

(24V)

(Ground)

T5 (24V)

Red

Red

G5 (Ground)

Red wiresTB1

Liebert Deluxe System/3,

Challenger, Himod or

Mini-Mate2 (8 ton) LT410

Location of
T5 (24V)
connection
on main
controller
board of
Liebert unit

Transformer

LT460

TB1

TB1-1

TB1-2

From 24V
transformer

24V from Transformer to LT460

From 24V

transformer

Red

Red

Red wires

Transformer LT410

LT460 to Liebert Environme ntal Unit

Liebert Deluxe Sys/3,
Challenger, Himod or
MM2 (8 Ton)

24

(24V)

51

LT460

TB2

TB2-2

(C)

TB2-1

(N.O.)

TB2-3

(N.C.)

Env. Unit

Liebert MM2 (1 to 5 Ton)

TB1-1

(24V)

TB1-2

LT460

TB2

TB2-2

(C)

TB2-1

(N.O.)

TB2-3

(N.C.)

Env. Unit

OR

1-NC

Orange wires

Liebert Deluxe System/3,

Challenger, Himod or

Mini-Mate2 (8 ton)

LT410

Orange wires

Liebert Mini-Mate2

(1 to 5 ton)

LT410

1-COM

1-NO

1-NC

1-COM

1-NO

Environmental

unit

Environmental

unit

24 (24V)

51, 55 or 56

TB1-1 (24V)

TB1-2 or TB1-3

TB2

TB2-2

(C)

TB2-1

(N.O.)

TB2-3

(N.C.)

LT460

Liebert Contact
Monitor Panel

Input

Contact

(N.O.)

Alarm P anel

2-NC

2-COM

2-NO

Yellow wires

LT4 10

Alarm panel

Liebert contact monitor

panel

Input

contact

(N.O.)