ZR111 Mechanical Dual Thermostat for Cabinet Climate Control

Key Specifications

Item	Technical Parameter
Switching difference	12.6 °F ±7 °F tolerance (7 K ±4 K)
Sensor element	thermostatic bimetal
Contact type	snap‑action contact
Service life	>100,000 cycles
Max. switching capacity	NC: 10 A resistive / 2 A inductive @ AC 250 V NO: 5 A resistive / 2 A inductive @ AC 250 V 15 A resistive / 2 A inductive @ AC 120 V DC 30 W (DC 24‑72 V)
Max. inrush current	AC 16 A for 10 sec.
Housing	PC
Weight	approx. 3.2 oz. (90 g)
Mounting	Clip for 35 mm DIN rail
Dimensions	74 x 50 x 47 mm
Operating/Storage temperature	-49 to +176 °F (-45 to +80 °C)
Operating/Storage humidity	max. 90 %RH (non‑condensing)
Protection type	IP20

ZR111 mechanical dual thermostat integrates normally closed and normally open temperature control contacts in a single unit, specially designed for electrical cabinet thermal management. Equipped with two independent adjustable temperature knobs, it can automatically activate heaters for warming or cooling fans for heat dissipation according to cabinet temperature changes, maintaining stable internal operating conditions for electrical components.

Built with bimetallic sensing element and snap‑action contacts, the thermostat features high switching capacity, small hysteresis and long service life. Standard 35 mm DIN rail clip enables fast installation inside control cabinets. It has obtained multiple international certifications and is widely adopted by many top‑tier brands.