Kooltronic Mechanical Hygrostat

since 1956 - celebrating our 56th year!
Thermal Management for Enclosures
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Mechanical Hygrostat

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The KSMH50 and KSMH65 have been designed to control the relative air humidity inside of enclosures. When connected to an enclosure heater, (de-humidifier), it will turn the heater on at the preset humidity setpoint in order to raise the dew point. This helps prevent damage and malfunction of electronic components caused by condensation and corrosion. These units can also be used to control cooling fans, warning lights or other devices.

Price per Unit*	Model	Setpoint
$107.00	KSMH50	50% RH setpoint
$107.00	KSMH65	65% RH setpoint

* Contact Kooltronic for quantity pricing.

Fixed relative humidity setpoint
High switching capacity
DIN rail mountable

TECHNICAL DATA

Switching tolerance:	±5% RH
Switching difference (hysteresis):	4% RH (±3% tolerance)
Permissible air velocity:	50 ft/sec (15m/s)
Contact type:	Contact maker (normally open)
Contact resistance:	<10mΩ
Service life:	50,000 cycles
Minimum switching capacity:	100mA @ AC/DC 20 V
Maximum switching capacity:	5A @ AC 250 V (resistive load)
	0.2A @ AC 250 V
	(inductive load at cos φ = 0.8)
	DC 20W
EMI/EMC compliance:	EN 55014-1-2, EN 61000-3-2, EN 61000-3-3
Connection:	2-pole terminal, AWG 14 max. (2.5 mm²)
Mounting:	Clip for 35mm DIN rail (EN 50022)
Housing:	Plastic, UL94V-0
Weight:	1.4 oz (40g)
Operating temperature:	32 to 140°F (0 to 60°C)
Storage temperature:	-4°F to 176°F (-20 to 80°C)
Protection type:	IP20
Application examples:	Electrical & Electronic enclosures
	Telecommunication systems
	Display panels
	Ticket dispensers
	Automatic teller machines (ATM's)
	Access & Parking control systems
Agency approvals:	CE, UL submitted for approval

DIMENSIONS (click and drag to pan)

Dimensions, inches [mm], are for reference only and subject to change.

Specifications are subject to change without notice. Suitability of this product for its intended use and any associated risks must be determined by the end customer/buyer in its final application.

HOW TO ORDER

Specify model number.

SIMILAR MODELS
Model	Contact type
KSMH	Change-over contact

View Data Sheet

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