Honeywell MCSS, MCSP Installation Instructions

62-0413-02

MCSS/MCSP Current Switches

CAUTION

WARNING

INSTALLATION INSTRUCTIONS

Risk of electrical shock.
Can cause severe injury, property damage or
death.

Disconnect and lock out all power sources before
installation as severe injury or death may result from
electrical shock due to contact with high voltage wires.

Never rely on the LED’s of the MCSS-A/MCSP-A to
determine whether power is present at the current
switch. The Red LED will indicate whether the current
is above the adjustable trip point. The Blue LED will
indicate that the current is below the adjustable trip
point.

The MCSS-A and MCSP-A Current Switches should be used
on Insulated Conductors Only! The current switch may be
mounted in any position using the (2) #8 x 3/4” Tek screws and
the mounting holes in the base. Leave a minimum distance of

INSTALLATION

Make sure that all installations are in compliance with all
national and local electrical codes. Only qualified individuals
that are familiar with codes, standards, and proper safety
procedures for high-voltage installations should attempt
installation. The current switches will not require external
power, since the power for the current switch is induced from
the conductor being monitored.

1” (3 cm) between the current switch and any other magnetic
devices such as contactors and transformers.

For applications in which the normal operating current is
below the 0.32Amps (MCSS-A) or 0.70Amps (MCSP-A) trip
point (See Figure 5 below), the conductor being monitored
may be looped through the sensor 6 times giving you a total
operating current of 6X the original current. Example: A small
fan operating at 0.2A should be wrapped through the sensor 7
times to give you a total operating current of 1.4 Amps flowing
through the MCSS-A or MCSP-A.

This product is not intended to be used for Life or
Safety applications.
This product is not intended for use in any
hazardous or classified locations.

For applications in which the normal operating current is
greater than 150 Amps or for conductor diameters larger than

0.530” (1.35 cm) in diameter, an external 5 Amp Current
Transformer (5A CT) must be used as shown in Figure 6
below. Remember that the secondary of the 5A CT must be
shorted together before the power may be turned onto the
monitored device.

MCSS/MCSP CURRENT SWITCHES

M33395

NUMBER 8 X 3/4 (19) TEK SCREW

(QUANITY 2 PER UNIT)

Use Copper Conductors Only

Output: 0.5A@

36.0 Vac/V

DC

Sense Range: 0.2-150A
TRIP ON = Above 0.2A

SPECIFICATIONS

Table 1. Operating specifications.

Core

Model

Typ e

MCSS-F Solid Fixed < 0.20 Amps 0.50 Amp

MCSP-F Split Fixed < 0.55 Amps

MCSS-A Solid Adjustable 0.32 - 150 Amps 1.00 Amp

MCSP-A Split Adjustable 0.70 - 150 Amps

Switch

Type Trip Point

Output

Switch Rating

@ 36 VAC/

VDC

@ 36 VAC/

VDC

Max. Sensing

Current
Voltage

Max.

Continuous

Current

Max. Current

for

6 seconds

Max. Current

1 second

600 VAC 158 Amps 240 Amps 600 Amps

TRIP
OFF ON

Output: 1.0A@

NUMBER 8 X 3/4 (19) TEK SCREW

(QUANITY 2 PER UNIT)

36.0 Vac/Vdc

TRIP

ADJ

TRIP ON = Above Trip Point

Adj. Range: 0.32-150A

Use Copper Conductors Only

for

Fig. 1. MCSS-F

MCSP-F

Fig. 2. MCSP-F

M33397

Fig. 3. MCSS-A

M33398

M33396

Fig. 4. MCSP-A

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