Dual thermostat
ZR 011
Normally closed (NC) and normally open (NO) thermostats in one casing. Unlike thermostats with changeover contacts, the double thermostat switches independently. This allows heating and cooling devices to be switched in different temperature ranges.
- Normally closed (NC, heating) and normally open (NO, cooling) in one casing
- Snap-action contact enables independent switching
- Temperatures can be adjusted separately
- High switching capacity
- Clip mounting
Overview technical data
| Device name | Dual thermostat |
| Device type | Thermostats |
| Series | ZR 011 |
| Contact type | Snap-action contact |
| Sensor | Thermostatic bimetal |
| Protection type | IP20 |
| Casing | Plastic to UL94 V-0, light grey |
| AC/DC | AC DC |
| Operating voltage tolerance maximum | AC 250 V (VDE), AC 120 V (UL) V |
| Inrush current maximum | 16 A |
| Inrush current duration | 10 s |
| Switching capacity | AC 250 V: 10 (2) A AC 120 V: 15 (2) A DC 24-72V: 30 W |
| Switching current ohmic | 10 A |
| Switching current 2 ohmic | 15 A |
| Reference voltage ohmic maximum | 250 VAC |
| Reference voltage 2 ohmic maximum | 120 VAC |
| Switching current inductive | 2 A |
| Reference voltage inductive maximum | 250 VAC |
| Reference voltage 2 maximum | 120 VAC |
| Switching current dc ohmic | 1 A |
| Reference voltage dc ohmic maximum | 30 VDC |
| Minimal switching capacity | 0.48 W |
| Reference voltage minimum | 24 V |
| Switching current | 20 mA |
| Service life | >100000 cycles |
| Switching differential | 7 K |
| Switching differential tolerance | ± 4 K |
| Operating temperature | -45 °C - 80 °C |
| Operating humidity | ≤90 % RH |
| Storage humidity | ≤90 % RH |
| Storage temperature | -45 °C - 80 °C |
| Torque | 0.5 Nmmax. |
| Connection | 4-pole clamp, torque 0.5 Nm max: Rigid wire cable 2.5 mm² (AWG 14) Stranded wire1 1.5 mm² (AWG 16) |
| Mounting | Clip for 35 mm DIN rail, EN 60715 |
| Height | 67 mm |
| Width | 50 mm |
| Depth | 46 mm |
| Weight | 90 g |
| Note | CSA approved 01176.0-00 and 01176.0-01 for controlling heat exchangers and fans (e.g. LE 019) and as an alarm or signaling contact for monitoring the internal temperature of the control cabinet. Wire end ferrules must be used for connections with stranded wires. The controller's contact system is exposed to environmental influences, which can change the contact resistance. This can lead to a voltage drop and/or self-heating of the contacts. |
| CCC | CQC |
Heating
Cooling
Regulating
Lighting
