RH5–Limit value switch for temperature (NTC thermistor) : NORIS Group GmbH

Limit value switch for temperature, NTC thermistor
Simple application; for harsh environments
Limit value adjustable by drum scale
Normally open or normally closed version
Compact and robust construction
Operating status indication by integrated LED

Limit value switches of type RH5 monitor electrical measured variables. The integrated relay switches when the actual value present reaches the set target value. Furthermore, limit value switches of this type are equipped with sensor monitoring for short circuits and wire breaks. Its compact and robust design, as well as the relevant shipbuilding approvals, make this product ideal for marine applications.

Supply voltage U_B	18...32 VDC
Input signal	NTC thermistor
Output contact	Volt-free change over switch contact, normally closed or normally open
Maximum switching capacity	30 W (1 A at 30 VDC; 0.5 A at 60 VDC); 40 W (0.2 A at 220 VAC)
Operating temperature	-20°C...+70°C
Connection	DIN46244 tab connector, gold-plated A6.3 x 0.8
Mounting	TS32 G-rail or TS35 top hat rail

Declaration of conformity Vx5

Part code structure
RH5	1	-A	Example: RH51-A
	Input range
		Output signal

Part code RH5 …
Input range	1	40 … 120°C = 2663.3 … 194.65 Ω (NORIS temperature sensors TH.1)
Input range	2	5 … 70°C = 2181 … 231 Ω (NORIS temperature sensors TH.2)
Output contact			Output contact as changeover switch in normally closed
Output contact		A	Output contact as changeover switch in normally open
RH5	__	-__	Example: RH51-A